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Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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INDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY
NOTE
-
This subclass constitutes an internal scheme for indexing only.

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F05B 2200/00
Mathematical features
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F05B 2200/10
.
Basic functions
F05B 2200/11
. .
Sum
F05B 2200/12
. .
Substraction
F05B 2200/13
. .
Product
F05B 2200/14
. .
Division
F05B 2200/15
. .
Inverse
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F05B 2200/20
.
Special functions
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F05B 2200/21
. .
Root
F05B 2200/211
. . .
Square root
F05B 2200/212
. . .
Cubic root
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F05B 2200/22
. .
Power
F05B 2200/221
. . .
Square power
F05B 2200/222
. . .
Cubic power
F05B 2200/23
. .
Logarithm
F05B 2200/24
. .
exponential
F05B 2200/25
. .
Hyperbolic trigonemetric, e.g. sinh, cosh, tanh
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F05B 2200/26
. .
trigonometric
F05B 2200/261
. . .
Sine
F05B 2200/262
. . .
Cosine
F05B 2200/263
. . .
Tangent
F05B 2200/264
. . .
Cotangent
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F05B 2200/30
.
miscellaneous
F05B 2200/31
. .
odd
F05B 2200/32
. .
even
F05B 2200/33
. .
bigger/smaller
F05B 2200/34
. .
biggest/smallest
F05B 2200/35
. .
first
F05B 2200/36
. .
last
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F05B 2210/00
Working fluid
NOTE
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Indexing codes of group F05B 2210/00 can be followed by a name for a specific working fluid preceded by the "+" sign, e.g. F05B 2210/11+water.

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F05B 2210/10
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Kind or type
F05B 2210/11
. .
liquid, i.e. incompressible
F05B 2210/12
. .
gaseous, i.e. compressible
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F05B 2210/13
. .
mixed, e.g. two-phase fluid
F05B 2210/132
. . .
Pumps with means for separating and evacuating the gaseous phase
F05B 2210/14
. .
Refrigerants with particular properties, e.g. HFC-134a
F05B 2210/16
.
Air or water being indistinctly used as working fluid, i.e. the machine can work equally with air or water without any modification
F05B 2210/18
.
Air and water being simultaneously used as working fluid
F05B 2210/20
.
Properties
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F05B 2210/30
.
Flow characteristics
F05B 2210/301
. .
with Mach-number kept constant along the flow
F05B 2210/302
. .
Pressure kept constant along the flow
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F05B 2210/40
.
Flow geometry or direction
F05B 2210/401
. .
upwards due to the buoancy of compressed air
F05B 2210/402
. .
Axial inlet and radial outlet
F05B 2210/403
. .
Radial inlet and axial outlet
F05B 2210/404
. .
bidirectional, i.e. in opposite, alternating directions
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F05B 2220/00
Application
F05B 2220/10
.
in ram-jet engines or ram-jet driven vehicles
F05B 2220/20
.
within closed fluid conduits, e.g. pipes
F05B 2220/25
.
as advertisement
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F05B 2220/30
.
in turbines
F05B 2220/301
. .
in steam turbines
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F05B 2220/302
. .
in gas turbines
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F05B 2220/3021
. . .
for a special turbine stage
F05B 2220/3022
. . . .
the first stage of a turbine
F05B 2220/3023
. . . .
an intermediate stage of the turbine
F05B 2220/3025
. . . .
the last stage of the turbine
F05B 2220/303
. . .
for aircraft propulsion, e.g. jet engines
F05B 2220/304
. . .
to drive unshrouded, low solidity propeller
F05B 2220/305
. . .
to drive unshrouded, high solidity propeller
F05B 2220/306
. . .
to drive shrouded, low solidity propeller
F05B 2220/307
. . .
to drive shrouded, high solidity propeller
F05B 2220/308
. . .
providing direct vertical lift
F05B 2220/309
. . .
in a helicopter
F05B 2220/31
. .
in ram-air turbines ("RATS")
F05B 2220/32
. .
in water turbines
F05B 2220/33
. .
specially adapted for the fan of turbofan engines
F05B 2220/40
.
in turbochargers
F05B 2220/50
.
for auxiliary power units (APU's)
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F05B 2220/60
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making use of surplus or waste energy
F05B 2220/602
. .
with energy recovery turbines
F05B 2220/604
. .
for domestic central heating or production of electricity
F05B 2220/61
.
for hydrogen and/or oxygen production
F05B 2220/62
.
for desalination
F05B 2220/64
.
for aeration
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F05B 2220/70
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in combination with
F05B 2220/702
. .
a steam turbine
F05B 2220/704
. .
a gas turbine
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F05B 2220/706
. .
an electrical generator
F05B 2220/7062
. . .
of the direct current (D.C.) type
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F05B 2220/7064
. . .
of the alternating current (A.C.) type
F05B 2220/70642
. . . .
of the synchronous type
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F05B 2220/70644
. . . .
of the asynchronous type, i.e. induction type
F05B 2220/70646
. . . . .
Double fed induction generators (DFIGs)
F05B 2220/7066
. . .
via a direct connection, i.e. a gearless transmission
F05B 2220/7068
. . .
equipped with permanent magnets
F05B 2220/707
. . .
of the linear type
F05B 2220/708
. .
Photoelectric means, i.e. photovoltaic or solar cells
F05B 2220/709
. .
Piezoelectric means
F05B 2220/80
.
in supersonic vehicles excluding hypersonic vehicles or ram, scram or rocket propulsion
F05B 2220/90
.
in vehicles adapted for vertical or short take off and landing (v/stol vehicles), (gas turbines providing direct vertical lift F05B 2220/308)
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F05B 2230/00
Manufacture
NOTE
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Manufacture comprises also treatment, assembly or disassembly methods, repairing, handling or the like.

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F05B 2230/10
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by removing material
F05B 2230/101
. .
by electrochemical methods
F05B 2230/102
. .
by spark erosion methods
F05B 2230/103
. .
using lasers
F05B 2230/104
.
Micromachining
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F05B 2230/20
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essentially without removing material
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F05B 2230/21
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by casting
F05B 2230/211
. . .
by precision casting, e.g. microfusing or investment casting
F05B 2230/22
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by sintering
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F05B 2230/23
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by permanently joining parts together
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F05B 2230/232
. . .
by welding
F05B 2230/233
. . . .
Electron beam welding
F05B 2230/234
. . . .
Laser welding
F05B 2230/235
. . . .
Tig/Mig welding
F05B 2230/236
. . . .
Diffusion bonding
F05B 2230/237
. . . .
Brazing
F05B 2230/238
. . . .
Soldering
F05B 2230/239
. . . .
Inertia or friction welding
F05B 2230/24
. .
by extrusion
F05B 2230/25
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by forging
F05B 2230/26
. .
by rolling
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F05B 2230/30
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with deposition of material
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F05B 2230/31
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Layer deposition
F05B 2230/311
. . .
by torch or flame spray
F05B 2230/312
. . .
by plasma spray
F05B 2230/313
. . .
by physical vapour deposition
F05B 2230/314
. . .
by chemical vapour deposition
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F05B 2230/40
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Heat treatment
F05B 2230/41
. .
Hardening; Annealing
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F05B 2230/50
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Building or constructing in particular ways
F05B 2230/502
. .
using existing or "off the shelf" parts, e.g. using standardised turbocharger elements
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F05B 2230/60
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Assembly methods
F05B 2230/601
. .
using limited numbers of standard modules which can be adapted by machining
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F05B 2230/604
. .
using positioning or alignment devices for aligning or centering, e.g. pins
F05B 2230/606
. . .
using maintaining alignment while permitting differential dilatation
F05B 2230/608
. . .
for adjusting the position or the alignment, e.g. wedges or excenters
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F05B 2230/61
. .
using auxiliary equipment for lifting or holding (hoisting on to a stationary structure with provisions on the structure itself F05B 2240/916)
F05B 2230/6102
. . .
carried on a floating platform
F05B 2230/70
.
Disassembly methods
F05B 2230/80
.
Repairing, retrofitting or upgrading methods
F05B 2230/90
.
Coating; Surface treatment (manufacture with deposition of material F05B 2220/30)
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F05B 2240/00
Components
NOTE
-
Components are the basic elements of construction.

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F05B 2240/10
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Stators
F05B 2240/11
. .
Shroud seal segments
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F05B 2240/12
. .
Fluid guiding means, e.g. vanes
F05B 2240/121
. . .
Baffles or ribs
F05B 2240/122
. . .
Vortex generators, turbulators, or the like, for mixing (by creating turbulence F05B 2260/222)
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F05B 2240/123
. . .
Nozzles
F05B 2240/1231
. . . .
Plug nozzles
F05B 2240/124
. . .
Cascades, i.e. assemblies of similar profiles acting in parallel
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F05B 2240/13
. .
to collect or cause flow towards or away from turbines
F05B 2240/131
. . .
by means of vertical structures, i.e. chimneys
F05B 2240/132
. . .
creating a vortex or tornado effect
F05B 2240/133
. . .
with a convergent-divergent guiding structure, e.g. a Venturi conduit
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F05B 2240/14
. .
Casings, housings, nacelles, gondels or the like, protecting or supporting assemblies within
F05B 2240/142
. . .
in the form of a standard ISO container
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F05B 2240/20
.
Rotors
F05B 2240/201
. .
using the Magnus-effect
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F05B 2240/202
. .
with adjustable area of intercepted fluid
F05B 2240/2021
. . .
by means of telescoping blades
F05B 2240/2022
. . .
by means of tethering or coning blades
F05B 2240/2023
. . .
by means of radially reefing blades
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F05B 2240/21
. .
for wind turbines
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F05B 2240/211
. . .
with vertical axis
F05B 2240/212
. . . .
of the Darrieus type
F05B 2240/213
. . . .
of the Savonieus type
F05B 2240/214
. . . .
of the Musgrove or "H"-type
F05B 2240/215
. . . .
of the panemone or "vehicle ventilator" type
F05B 2240/216
. . . .
of the anemometer type
F05B 2240/217
. . . .
of the crossflow- or "Banki"- or "double action" type
F05B 2240/218
. . . .
with horizontally hinged vanes
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F05B 2240/221
. . .
with horizontal axis
F05B 2240/2211
. . . .
of the multibladed, low speed, e.g. "American farm" type
F05B 2240/2212
. . . .
perpendicular to wind direction
F05B 2240/2213
. . . .
and with the rotor downwind from the yaw pivot axis
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F05B 2240/231
. . .
driven by aerodynamic lift effects
F05B 2240/232
. . . .
driven by drag
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F05B 2240/24
. .
for turbines
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F05B 2240/241
. . .
of impulse type
F05B 2240/2411
. . . .
Pelton type
F05B 2240/242
. . .
of reaction type
F05B 2240/243
. . .
of the Archimedes screw type
F05B 2240/244
. . .
of the cross-flow, e.g. Banki, Ossberger type
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F05B 2240/30
. .
Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
F05B 2240/301
. . .
Cross-section characteristics
F05B 2240/302
. . .
Segmented or sectional blades
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F05B 2240/31
. . .
of changeable form or shape
F05B 2240/311
. . . .
flexible or elastic
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F05B 2240/312
. . . .
capable of being reefed
F05B 2240/3121
. . . . .
around an axis orthogonal to rotor rotational axis
F05B 2240/313
. . . .
with adjustable flow intercepting area (F05B 2240/312 takes precedence)
F05B 2240/32
. . .
with roughened surfaces
F05B 2240/33
. .
Shrouds which are part of or which are rotating with the rotor
F05B 2240/34
. .
with auxiliary or secondary rotors attached to blades of main rotor
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F05B 2240/35
.
Combustors or associated equipment
F05B 2240/36
. .
Fuel vaporizer
F05B 2240/40
.
Use of a multiplicity of similar components
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F05B 2240/50
.
Bearings
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F05B 2240/51
. .
magnetic
F05B 2240/511
. . .
with permanent magnets
F05B 2240/515
. . .
electromagnetic
F05B 2240/52
. .
Axial thrust bearings
F05B 2240/53
. .
Hydrodynamic or hydrostatic bearings
F05B 2240/54
. .
Radial bearings
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F05B 2240/57
.
Seals
F05B 2240/571
. .
Brush seals
F05B 2240/572
. .
Leaf seals
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F05B 2240/60
.
Shafts
F05B 2240/61
. .
hollow
F05B 2240/62
. .
flexible
F05B 2240/63
. .
Glands for admission or removal of fluids from shafts
F05B 2240/70
.
Slinger plates or washers
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F05B 2240/80
.
Platforms for stationary or moving blades
F05B 2240/801
. .
cooled platforms
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F05B 2240/90
.
Mounting on supporting structures or systems
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F05B 2240/91
. .
on a stationary structure
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F05B 2240/911
. . .
already existing for a prior purpose
F05B 2240/9111
. . . .
which is a chimney
F05B 2240/9112
. . . .
which is a building
F05B 2240/9113
. . . .
which is a roadway, rail track, or the like for recovering energy from moving vehicles
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F05B 2240/912
. . .
on a tower
F05B 2240/9121
. . . .
on a lattice tower
F05B 2240/913
. . .
on a mast
F05B 2240/914
. . .
on an inflatable structure
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F05B 2240/915
. . .
which is vertically adjustable
F05B 2240/9151
. . . .
telescopically
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F05B 2240/9152
. . . .
by being hinged
F05B 2240/91521
. . . . .
at ground level
F05B 2240/916
. . .
with provision for hoisting onto the structure
F05B 2240/917
. . .
attached to cables
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F05B 2240/92
. .
on an airborne structure
F05B 2240/921
. . .
kept aloft due to aerodynamic effects
F05B 2240/922
. . .
kept aloft due to buoyancy effects
F05B 2240/923
. . .
which is a vehicle
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F05B 2240/93
. .
on a structure floating on a liquid surface
F05B 2240/931
. . .
which is a vehicle
F05B 2240/932
. . .
which is a catamaran-like structure
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F05B 2240/94
. .
on a movable wheeled structure
F05B 2240/941
. . .
which is a land vehicle
F05B 2240/95
. .
offshore
F05B 2240/96
. .
as part of a wind farm
F05B 2240/97
. .
on a submerged structure
F05B 2240/98
. .
which is inflatable
F05B 2240/99
.
characterised by colour or colour patterns
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F05B 2250/00
Geometry
NOTE
-
Geometry indicates the shape or form of a component or the configuration or arrangement of components in a machine or in a plant.

F05B 2250/02
.
variable
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F05B 2250/10
.
two-dimensional
F05B 2250/11
. .
triangular
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F05B 2250/12
. .
rectangular
F05B 2250/121
. . .
square
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F05B 2250/13
. .
trapezial
F05B 2250/131
. . .
polygonal
F05B 2250/132
. . .
hexagonal
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F05B 2250/14
. .
elliptical
F05B 2250/141
. . .
circular
F05B 2250/15
. .
spiral
F05B 2250/16
. .
parabolic
F05B 2250/17
. .
hyperbolic
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F05B 2250/18
. .
patterned
F05B 2250/181
. . .
ridged
F05B 2250/182
. . .
crenellated, notched
F05B 2250/183
. . .
zigzag
F05B 2250/184
. . .
sinusoidal
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F05B 2250/19
. .
machined; miscellaneous
F05B 2250/191
. . .
perforated
F05B 2250/192
. . .
beveled
F05B 2250/193
. . .
milled
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F05B 2250/20
.
three-dimensional
F05B 2250/21
. .
pyramidal
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F05B 2250/22
. .
parallelepipedic
F05B 2250/221
. . .
cubic
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F05B 2250/23
. .
prismatic
F05B 2250/231
. . .
cylindrical
F05B 2250/232
. . .
conical
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F05B 2250/24
. .
ellipsoidal
F05B 2250/241
. . .
spherical
F05B 2250/25
. .
helical
F05B 2250/26
. .
paraboloidal
F05B 2250/27
. .
hyperboloidal
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F05B 2250/28
. .
patterned
F05B 2250/281
. . .
threaded
F05B 2250/282
. . .
Cubic pattern
F05B 2250/283
. . .
Honeycomb
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F05B 2250/29
. .
machined; miscellaneous
F05B 2250/291
. . .
hollowed
F05B 2250/292
. . .
tapered
F05B 2250/293
. . .
lathed, e.g. rotation symmetrical
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F05B 2250/30
.
Arrangement of components
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F05B 2250/31
. .
according to the direction of their main axis or their axis of rotation
F05B 2250/311
. . .
the axes being in line
F05B 2250/312
. . .
the axes being parallel to each other
F05B 2250/313
. . .
the axes being perpendicular to each other
F05B 2250/314
. . .
the axes being inclined in relation to each other
F05B 2250/315
. . .
the main axis being substantially vertical
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F05B 2250/32
. .
according to their shape
F05B 2250/321
. . .
asymptotic
F05B 2250/322
. . .
tangential
F05B 2250/323
. . .
convergent
F05B 2250/324
. . .
divergent
F05B 2250/33
. .
symmetrical
F05B 2250/34
. .
translated
F05B 2250/35
. .
rotated
F05B 2250/36
. .
in inner-outer relationship, e.g. shaft-bearing arrangements
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F05B 2250/40
.
Movement of component
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F05B 2250/41
. .
with one degree of freedom
F05B 2250/411
. . .
in rotation
F05B 2250/42
. .
with two degrees of freedom
F05B 2250/43
. .
with three degrees of freedom
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F05B 2250/50
.
Inlet or outlet
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F05B 2250/501
. .
Inlet
F05B 2250/5011
. . .
augmenting, i.e. with intercepting fluid flow cross sectional area greater than the rest of the machine behind the inlet
F05B 2250/5012
. . .
concentrating only, i.e. with intercepting fluid flow cross sectional area not greater than the rest of the machine behind the inlet
F05B 2250/502
. .
Outlet
F05B 2250/503
. .
of regenerative pumps
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F05B 2250/60
.
Structure; Surface texture
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F05B 2250/61
. .
corrugated
F05B 2250/611
. . .
undulated
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F05B 2250/62
. .
smooth
F05B 2250/621
. . .
polished
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F05B 2250/70
.
Shape
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F05B 2250/71
. .
curved
F05B 2250/711
. . .
convex
F05B 2250/712
. . .
concave
F05B 2250/713
. . .
inflexed
F05B 2250/72
. .
symmetric
F05B 2250/73
. .
asymmetric
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F05B 2250/80
.
Size or power range of the machines
F05B 2250/82
. .
Micromachines
F05B 2250/84
. .
Nanomachines (Nanotechnology for interacting, sensing or actuating Y01N8/00)
F05B 2250/86
. .
Megamachines
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F05B 2260/00
Function
F05B 2260/02
.
Transport, e.g. specific adaptations or devices for conveyance (transport of wind turbines or equipments therefore F03D 1/005)
F05B 2260/10
.
Particular cycles
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F05B 2260/20
.
Heat transfer, e.g. cooling
F05B 2260/201
. .
by impingement of a fluid
F05B 2260/202
. .
by film cooling
F05B 2260/203
. .
by transpiration cooling
F05B 2260/205
. .
Cooling fluid recirculation, i.e. after having cooled one or more components the cooling fluid is recovered and used elsewhere for other purposes
F05B 2260/207
. .
using a phase changing mass, (e.g. heat absorbing by melting or boiling)
F05B 2260/208
. .
using heat pipes
F05B 2260/209
. .
using vortex tubes
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F05B 2260/211
. .
by intercooling, e.g. during a compression cycle
F05B 2260/212
. . .
by water injection
Collapse
F05B 2260/221
. .
Improvement of heat transfer
F05B 2260/222
. . .
by creating turbulence (vortex generators, turbulators or the like for mixing F05B 2240/122)
Collapse
F05B 2260/224
. . .
by increasing the heat transfer surface
F05B 2260/2241
. . . .
using fins or ribs
F05B 2260/231
. .
Preventing heat transfer
Collapse
F05B 2260/232
. .
characterised by the cooling medium
F05B 2260/233
. . .
the medium being steam
F05B 2260/24
. .
for draft enhancement in chimneys, using solar or other heat sources
Collapse
F05B 2260/30
.
Retaining components in desired mutual position
Collapse
F05B 2260/301
. .
Retaining bolts or nuts
F05B 2260/3011
. . .
of the frangible or shear type
F05B 2260/302
. .
by means of magnetic or electromagnetic forces
F05B 2260/303
. .
with a bayonet coupling
F05B 2260/304
. .
Balancing of radial or axial forces on regenerative rotors
F05B 2260/305
. .
Reducing friction between regenerative impeller discs and casing walls
Collapse
F05B 2260/40
.
Transmission of power
Collapse
F05B 2260/402
. .
through friction drives
F05B 2260/4021
. . .
through belt drives
F05B 2260/4022
. . .
through endless chains
F05B 2260/4023
. . .
through a friction clutch
Collapse
F05B 2260/403
. .
through the shape of the drive components
Collapse
F05B 2260/4031
. . .
as in toothed gearing
F05B 2260/40311
. . . .
of the epicyclic, planetary or differential type
Collapse
F05B 2260/404
. .
through magnetic drive coupling
F05B 2260/4041
. . .
the driven magnets encircling the driver magnets
F05B 2260/406
. .
through hydraulic systems
F05B 2260/407
. .
through piezoelectric conversion
F05B 2260/408
. .
through magnetohydrodynamic conversion
Collapse
F05B 2260/42
.
Storage of energy
F05B 2260/421
. .
in the form of rotational kinetic energy , e.g. in flywheels
Collapse
F05B 2260/50
.
Kinematic linkage, i.e. transmission of position
F05B 2260/502
. .
involving springs
Collapse
F05B 2260/503
. .
using gears
F05B 2260/5032
. . .
of the bevel or angled type
F05B 2260/504
. .
using flat or V-belts and pulleys
F05B 2260/505
. .
using chains and sprockets; using toothed belts
F05B 2260/506
. .
using cams or eccentrics
F05B 2260/507
. .
using servos, independent actuators, etc.
Collapse
F05B 2260/60
.
Fluid transfer
F05B 2260/601
. .
using an ejector or a jet pump
Collapse
F05B 2260/602
. .
Drainage
F05B 2260/603
. . .
of leakage having past a seal (seals F05B 2240/57; glands F05B 2240/63)
F05B 2260/604
. .
Vortex non-clogging type pumps
F05B 2260/63
. .
Preventing clogging or obstruction of flow paths by dirt, dust, or foreign particles
F05B 2260/64
. .
Aeration, ventilation, dehumidification or moisture removal of closed spaces
Collapse
F05B 2260/70
.
Adjusting of angle of incidence or attack of rotating blades
F05B 2260/71
. .
as a function of flow velocity
F05B 2260/72
. .
by turning around an axis parallel to the rotor centre line
F05B 2260/74
. .
by turning around an axis perpendicular the rotor centre line
F05B 2260/75
. .
the adjusting mechanism not using auxiliary power sources ("servos")
F05B 2260/76
. .
the adjusting mechanism using auxiliary power sources
F05B 2260/77
. .
the adjusting mechanism driven or triggered by centrifugal forces
F05B 2260/78
. .
the adjusting mechanism driven or triggered by aerodynamic forces
F05B 2260/79
. .
Bearing, support or actuation arrangements therefor
F05B 2260/80
.
Diagnostics
Collapse
F05B 2260/82
.
Forecasts
Collapse
F05B 2260/821
. .
Parameter estimation or prediction
F05B 2260/8211
. . .
of the weather
F05B 2260/83
.
Testing, e.g. methods, components or tools therefor
F05B 2260/84
.
Modeling or simulation
F05B 2260/845
.
Redundancy
F05B 2260/85
.
Starting
Collapse
F05B 2260/90
.
Braking
Collapse
F05B 2260/901
. .
using aerodynamic forces, i.e. lift or drag
F05B 2260/9011
. . .
of the tips of rotor blades
F05B 2260/902
. .
using frictional mechanical forces
F05B 2260/903
. .
using electrical or magnetic forces
F05B 2260/904
. .
using hydrodynamic forces
F05B 2260/95
.
Preventing corrosion (coating or surface treatment F05B 2230/90)
Collapse
F05B 2260/96
.
Preventing, counteracting or reducing vibration or noise
F05B 2260/962
. .
my means creating "anti-noise"
F05B 2260/964
. .
by damping means
F05B 2260/966
. .
by correcting static or dynamic imbalance
Collapse
F05B 2260/97
.
Reducing windage losses
F05B 2260/972
. .
in radial flow machines
F05B 2260/98
.
Lubrication
F05B 2260/99
.
Radar absorption
Collapse
F05B 2270/00
Control
Collapse
F05B 2270/10
.
Purpose of the control system
Collapse
F05B 2270/101
. .
to control rotational speed (n)
F05B 2270/1011
. . .
to prevent overspeed
F05B 2270/1012
. . .
to prevent underspeed
F05B 2270/1013
. . .
of different spools or shafts
F05B 2270/1014
. . .
to keep rotational speed constant
F05B 2270/1016
. .
in variable speed operation
Collapse
F05B 2270/102
. .
to control acceleration (u)
F05B 2270/1021
. . .
by keeping it below damagingly high values
F05B 2270/1022
. . .
by making it as high as possible
Collapse
F05B 2270/103
. .
to affect the output of the engine
F05B 2270/1031
. . .
Thrust
F05B 2270/1032
. . .
Torque
F05B 2270/1033
. . .
Power (if explicitly mentioned)
Collapse
F05B 2270/104
. .
to match engine to driven device
F05B 2270/1041
. . .
in particular the electrical frequency of driven generator
Collapse
F05B 2270/105
. .
to improve fuel economy
F05B 2270/1051
. . .
in particular at idling speed
Collapse
F05B 2270/106
. .
to produce clean exhaust gases
F05B 2270/1061
. . .
with as little smoke as possible
F05B 2270/1062
. . .
with as little NOx`s as possible
Collapse
F05B 2270/1063
. . .
by monitoring combustion conditions
F05B 2270/1064
. . . .
indirectly, at the exhaust
Collapse
F05B 2270/107
. .
to cope with emergencies
Collapse
F05B 2270/1071
. . .
in particular sudden load loss
F05B 2270/10711
. . . .
applying a low voltage ride through method
F05B 2270/1072
. . .
in particular blow-out and relight
F05B 2270/1073
. . .
of one engine in a multi-engine system
F05B 2270/1074
. . .
by using back-up controls
F05B 2270/1075
. . .
by temporary overriding set control limits
F05B 2270/1076
. . .
caused by water or hail ingestion
Collapse
F05B 2270/108
. .
to cope with, or avoid, compressor flow instabilities
Collapse
F05B 2270/1081
. . .
Compressor surge or stall
Collapse
F05B 2270/10812
. . . .
caused by working fluid flow velocity profile distortion
F05B 2270/10815
. . . . .
due to high angle of attack of aircraft
F05B 2270/10817
. . . . .
due to compressor degradation
Collapse
F05B 2270/109
. .
to prolong engine life
F05B 2270/1091
. . .
by limiting temperatures
F05B 2270/1095
. . .
by limiting mechanical stresses
F05B 2270/1097
. . .
by preventing reverse rotation
Collapse
F05B 2270/11
. .
to maintain desired vehicle trajectory parameters
F05B 2270/1101
. . .
Altitude
F05B 2270/1102
. . .
Speed or Mach number
F05B 2270/111
. .
to control two or more engines simultaneously
F05B 2270/15
. .
to control thermoacoustic behaviour in the combustion chambers (counteracting noise or vibration F05B 2260/96)
F05B 2270/16
. .
to control water or steam injection
F05B 2270/17
. .
to avoid excessive deflection of the blades
F05B 2270/18
. .
to control buoyancy
F05B 2270/19
. .
to avoid stroboscopic flicker shadow on surroundings
F05B 2270/20
. .
to optimise the performance of a machine
Collapse
F05B 2270/30
.
Control parameters, e.g. input parameters
Collapse
F05B 2270/301
. .
Pressure
F05B 2270/3011
. . .
Inlet
F05B 2270/3013
. . .
Outlet
F05B 2270/3015
. . .
differential
Collapse
F05B 2270/303
. .
Temperature
F05B 2270/3032
. . .
excessive temperatures, e.g. caused by overheating
F05B 2270/304
. .
Spool rotational speed
F05B 2270/305
. .
Tolerances
F05B 2270/309
. .
Rate of change of parameters
F05B 2270/31
. .
Fuel schedule for stage combustors
Collapse
F05B 2270/32
. .
Wind speeds
F05B 2270/3201
. . .
"cut-off" or "shut-down" wind speed
F05B 2270/321
. .
Wind directions
F05B 2270/322
. .
the detection or prediction of a wind gust
F05B 2270/323
. .
Air humidity
F05B 2270/324
. .
Air pressure
F05B 2270/325
. .
Air temperature
F05B 2270/326
. .
Rotor angle
F05B 2270/327
. .
Rotor or generator speeds
F05B 2270/328
. .
Blade pitch angle
F05B 2270/329
. .
Azimuth or yaw angle
F05B 2270/33
. .
Proximity of blade to tower
F05B 2270/331
. .
Mechanical loads
F05B 2270/332
. .
Maximum loads or fatigue criteria
F05B 2270/333
. .
Noise or sound levels
F05B 2270/334
. .
Vibration measurements
F05B 2270/335
. .
Output power or torque
F05B 2270/336
. .
Blade lift measurements
F05B 2270/337
. .
Electrical grid status parameters, e.g. voltage, frequency or power demand
Collapse
F05B 2270/40
.
Type of control system
F05B 2270/402
. .
passive or reactive, e.g. using large wind vanes
F05B 2270/404
. .
active, predictive, or anticipative
Collapse
F05B 2270/50
.
Control logic embodiment by
F05B 2270/502
. .
electrical means, e.g. relays or switches
F05B 2270/504
. .
electronic means, e.g. electronic tubes, transistors or IC`s within an electronic circuit
F05B 2270/506
. .
hydraulic means, e.g. hydraulic valves within a hydraulic circuit
F05B 2270/508
. .
mechanical means, e.g. levers, gears or cams
Collapse
F05B 2270/60
.
Control system actuates through
F05B 2270/602
. .
electrical actuators
F05B 2270/604
. .
hydraulic actuators
F05B 2270/605
. .
Pneumatic actuators
F05B 2270/606
. .
mechanical actuators (F05B 2270/602 takes precedence)
Collapse
F05B 2270/70
.
Type of control algorithm
F05B 2270/701
. .
proportional
F05B 2270/702
. .
differential
F05B 2270/703
. .
integral
F05B 2270/704
. .
proportional-differential
F05B 2270/705
. .
proportional-integral
F05B 2270/706
. .
proportional-integral-differential
F05B 2270/707
. .
fuzzy logic
F05B 2270/708
. .
with comparison tables
F05B 2270/709
. .
with neural networks
Collapse
F05B 2270/80
.
Devices generating input signals, e.g. transducers, sensors, cameras or strain gauges
F05B 2270/802
. .
Calibration thereof
F05B 2270/803
. .
Sampling thereof
Collapse
F05B 2270/804
. .
Optical devices
F05B 2270/8041
. . .
Cameras
F05B 2270/8042
. . .
Lidar systems
F05B 2270/805
. .
Radars
F05B 2270/806
. .
Sonars
F05B 2270/807
. .
Accelerometers
F05B 2270/808
. .
Strain gauges; Load cells
F05B 2270/809
. .
Encoders
F05B 2270/81
. .
Microphones
F05B 2270/821
. .
Displacement measuring means, e.g. inductive
Collapse
F05B 2280/00
Materials; Properties thereof
Collapse
F05B 2280/10
.
Inorganic materials, e.g. metals
F05B 2280/101
. .
Iron
F05B 2280/1011
. .
Cast iron
Collapse
F05B 2280/102
. .
Light metals
F05B 2280/1021
. . .
Aluminium
F05B 2280/1022
. . .
Beryllium
F05B 2280/1023
. . .
Boron
F05B 2280/1024
. . .
Lithium
F05B 2280/1025
. . .
Magnesium
Collapse
F05B 2280/103
. .
Heavy metals
F05B 2280/10301
. . .
Refractory metals, e.g. V, W
F05B 2280/10302
. . .
Chromium
F05B 2280/10303
. . .
Molybdenum
F05B 2280/10304
. . .
Titanium
F05B 2280/10305
. . .
Zirconium
F05B 2280/10306
. . .
Hafnium
F05B 2280/10307
. . .
Manganese
F05B 2280/10308
. . .
Lead
F05B 2280/10309
. . .
Tin
F05B 2280/1031
. . .
Zinc
F05B 2280/10311
. . .
Mercury
Collapse
F05B 2280/104
. .
Noble metals
F05B 2280/1041
. . .
Silver
F05B 2280/1042
. . .
Gold
F05B 2280/1043
. . .
Platinum group, e.g. Pt, Ir
F05B 2280/1044
. . .
Palladium
F05B 2280/1045
. . .
Ruthenium
F05B 2280/1046
. . .
Osmium
F05B 2280/1047
. . .
Iridium
F05B 2280/1048
. . .
Rhodium
F05B 2280/105
. .
Copper
F05B 2280/106
. .
Rare earth metals, e.g. Sc, Y
Collapse
F05B 2280/107
. .
Alloys
F05B 2280/1071
. . .
Steel alloys
Collapse
F05B 2280/1072
. .
Copper alloys
F05B 2280/10721
. . .
Bronze
F05B 2280/10722
. . .
Phosphor-bronze alloy
F05B 2280/10723
. . .
Nickel-Copper alloy, e.g. monel
F05B 2280/1073
. .
Aluminium alloy, e.g. AlCuMgPb
Collapse
F05B 2280/1074
. .
Alloys not otherwise provided for
F05B 2280/10741
. . .
Superalloys
F05B 2280/10742
. . .
Heat stable alloys
F05B 2280/10743
. . .
Ni - Si alloys
F05B 2280/10744
. . .
Metal-aluminide intermetalllic compounds
Collapse
F05B 2280/20
.
Inorganic materials, e.g. non-metallic materials
Collapse
F05B 2280/2001
. .
Glass
F05B 2280/20011
. . .
MIBA
F05B 2280/20012
. . .
Quartz
F05B 2280/2002
. .
Phosphor
F05B 2280/2003
. .
Silicon
Collapse
F05B 2280/2004
. .
Ceramics; Oxides
F05B 2280/20041
. . .
Aluminium oxides
F05B 2280/20042
. . .
Zinc oxides
F05B 2280/20043
. . .
Zirconium oxides
F05B 2280/2005
. .
Non-oxide ceramics
F05B 2280/2006
. .
Carbon, e.g. graphite
Collapse
F05B 2280/2007
. .
Carbides
F05B 2280/20071
. . .
of silicon
F05B 2280/20072
. . .
of titanium, e.g. TiB
F05B 2280/20073
. . .
of wolfram, e.g. tungsten carbide
Collapse
F05B 2280/2008
. .
Nitrides
F05B 2280/20081
. . .
of aluminium
F05B 2280/20082
. . .
of boron
F05B 2280/20083
. . .
of silicon
F05B 2280/20084
. . .
of titanium
F05B 2280/20085
. . .
of zirconium
Collapse
F05B 2280/2009
. .
Sulfides
F05B 2280/20091
. . .
of molybdenum
F05B 2280/201
. .
Sapphire
F05B 2280/2011
. .
Aluminium titanate
F05B 2280/2013
. .
Silica
F05B 2280/2014
. .
Arsenic
F05B 2280/2015
. .
Antimony
F05B 2280/2016
. .
Bismuth
F05B 2280/2017
. .
Barium
F05B 2280/30
.
Inorganic materials not otherwise provided for
Collapse
F05B 2280/40
.
Organic materials
F05B 2280/4001
. .
Leather
F05B 2280/4002
. .
Cellulosic materials, e.g. wood
F05B 2280/4003
. .
Synthetic polymers, e.g. plastics; Rubber
F05B 2280/4004
. .
Rubber
F05B 2280/4005
. .
PTFE (PolyTetraFluorEthylene)
F05B 2280/4006
. .
Polyamides, e.g. NYLON
F05B 2280/4007
. .
Thermoplastics
F05B 2280/4008
. .
Polyamides, e.g. Aurum
F05B 2280/4009
. .
Polyetherketones, e.g. PEEK
F05B 2280/401
. .
Silicon polymers
F05B 2280/4011
. .
Organic materials not otherwise provided for
Collapse
F05B 2280/50
.
Intrinsic material properties or characteristics
F05B 2280/5001
. .
Elasticity
F05B 2280/5002
. .
Thermal properties
Collapse
F05B 2280/5003
. .
Expansivity
F05B 2280/50031
. . .
similar
F05B 2280/50032
. . .
dissimilar
F05B 2280/5004
. .
Heat transfer
F05B 2280/5005
. .
Reflective properties
F05B 2280/5006
. .
Shape memory
F05B 2280/5007
. .
Hardness
F05B 2280/5008
. .
Magnetic properties
F05B 2280/5009
. .
non-magnetic
F05B 2280/501
. .
Self lubricating materials; Solid lubricants
F05B 2280/5011
. .
Surface roughness
Collapse
F05B 2280/60
.
Properties or characteristics given to material by treatment or manufacturing
Collapse
F05B 2280/6001
. .
Fabrics
F05B 2280/6002
. . .
Woven fabrics
F05B 2280/6003
. .
Composites; e.g. fibre-reinforced
F05B 2280/6004
. .
amorphous
F05B 2280/6005
. .
crystalline
F05B 2280/6006
. .
Directionally-solidified crystalline structures
F05B 2280/6007
. .
monocrystalline
F05B 2280/6008
. .
Structures
F05B 2280/6009
. .
Grain size
F05B 2280/601
. .
Syntactic
F05B 2280/6011
. .
Coating
F05B 2280/6012
. .
Foam
F05B 2280/6013
. .
Fibres
F05B 2280/6014
. .
Filler
F05B 2280/6015
. .
Resin
Collapse
F05B 2280/70
.
Treatments or modification of materials
F05B 2280/701
. .
Heat treatments
F05B 2280/702
. .
Reinforcements
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013