Version: 2024.08
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CPC | COOPERATIVE PATENT CLASSIFICATION | |||
| F01D | NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D) [2019-05] NOTES
WARNING
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F01D 1/00 | Non-positive-displacement machines or engines, e.g. steam turbines (wit working-fluid flows in opposite axial directions for balancing axial thrust F01D 3/02; with other than pure rotation F01D 23/00; turbines characterised by their use in special steam systems, cycles, or processes, regulating devices therefor F01K) [2013-01] |
F01D 1/02 | . |
F01D 1/023 | . . | {the working-fluid being divided into several separate flows (F01D 3/02 takes precedence); several separate fluid flows being united in a single flow; the machine or engine having provision for two or more different possible fluid flow paths} [2017-05] |
F01D 1/026 | . . |
F01D 1/04 | . . | traversed by the working-fluid substantially axially [2013-01] |
F01D 1/06 | . . | traversed by the working-fluid substantially radially [2013-01] |
F01D 1/08 | . . . | having inward flow [2013-01] |
F01D 1/10 | . . | having two or more stages subjected to working-fluid flow without essential intermediate pressure change, i.e. with velocity stages (F01D 1/12 takes precedence) [2013-01] |
F01D 1/12 | . . | with repeated action on same blade ring [2013-01] |
F01D 1/14 | . . . | traversed by the working-fluid substantially radially [2013-01] |
F01D 1/16 | . . | characterised by having both reaction stages and impulse stages [2013-01] |
F01D 1/18 | . |
F01D 1/20 | . . | traversed by the working-fluid substantially axially [2013-01] |
F01D 1/22 | . . | traversed by the working-fluid substantially radially [2013-01] |
F01D 1/24 | . | characterised by counter-rotating rotors subjected to same working fluid stream without intermediate stator blades or the like [2013-01] |
F01D 1/26 | . . | traversed by the working-fluid substantially axially [2013-01] |
F01D 1/28 | . . | traversed by the working-fluid substantially radially [2013-01] |
F01D 1/30 | . | characterised by having a single rotor operable in either direction of rotation, e.g. by reversing of blades (combinations of machines or engines F01D 13/00) [2013-01] |
F01D 1/32 | . | with pressure velocity transformation exclusively in rotor, e.g. the rotor rotating under the influence of jets issuing from the rotor, {e.g. Heron turbines (the working fluid being a combustion products F02C 3/165; jet propulsion plants per se F02K)} [2013-01] |
F01D 1/34 | . | characterised by non-bladed rotor, e.g. with drilled holes (F01D 1/32 takes precedence; sirens G10K 7/00 {; impact turbines with buckets F01D 1/026; hand-held tools with a non-bladed rotor F01D 15/067}) [2017-08] |
F01D 3/00 | Machines or engines with axial-thrust balancing effected by working-fluid [2013-01] |
F01D 3/02 | . | characterised by having one fluid flow in one axial direction and another fluid flow in the opposite direction [2013-01] |
F01D 3/025 | . . | {with a centrally disposed radial stage} [2013-01] |
F01D 3/04 | . | axial thrust being compensated by thrust-balancing dummy piston or the like [2013-01] |
F01D 5/00 | Blades; Blade-carrying members (nozzle boxes F01D 9/02); Heating, heat-insulating, cooling or antivibration means on the blades or the members {(special arrangements in rotors dealing with breaking off of part thereof F01D 21/045)} [2017-08] |
F01D 5/005 | . | {Repairing methods or devices} [2013-01] |
F01D 5/02 | . |
F01D 5/021 | . . | {for flow machines or engines with only one axial stage (for more than one stage F01D 5/06)} [2013-01] |
F01D 5/022 | . . | {with concentric rows of axial blades} [2013-01] |
F01D 5/023 | . . | {of the screw type} [2013-01] |
F01D 5/025 | . . | {Fixing blade carrying members on shafts (attachment of a member on a shaft in general F16D 1/06; for non-positive displacement pumps F04D 29/00)} [2013-01] |
F01D 5/026 | . . | {Shaft to shaft connections} [2013-01] |
F01D 5/027 | . . | {Arrangements for balancing (for balancing rotating bodies in general F16F 15/32; for compensating unbalance G01M 1/36)} [2013-01] |
F01D 5/028 | . . | {the rotor disc being formed of sheet laminae (rotor blade aggregates of unitary construction F01D 5/34)} [2013-01] |
F01D 5/03 | . . | Annular blade-carrying members having blades on the inner periphery of the annulus and extending inwardly radially, i.e. inverted rotors [2013-01] |
F01D 5/04 | . . | for radial-flow machines or engines [2013-01] |
F01D 5/041 | . . . | {of the Ljungström type} [2013-01] |
F01D 5/043 | . . . | {of the axial inlet- radial outlet, or vice versa, type} [2016-08] |
F01D 5/06 | . . | Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections {(F01D 5/022, F01D 5/023 take precedence)} [2013-01] |
F01D 5/063 | . . . | {Welded rotors (welding per se B23K)} [2013-01] |
F01D 5/066 | . . . | {Connecting means for joining rotor-discs or rotor-elements together, e.g. by a central bolt, by clamps} [2013-01] |
F01D 5/08 | . . | Heating, heat-insulating or cooling means {(specially adapted for radial flow machines or engines F01D 5/04)} [2013-01] |
F01D 5/081 | . . . | {Cooling fluid being directed on the side of the rotor disc or at the roots of the blades (F01D 5/087 takes precedence)} [2013-01] |
F01D 5/082 | . . . . | {on the side of the rotor disc} [2013-01] |
F01D 5/084 | . . . . | {the fluid circulating at the periphery of a multistage rotor, e.g. of drum type} [2013-01] |
F01D 5/085 | . . . | {cooling fluid circulating inside the rotor} [2013-01] |
F01D 5/087 | . . . . | {in the radial passages of the rotor disc} [2013-01] |
F01D 5/088 | . . . . | {in a closed cavity} [2013-01] |
F01D 5/10 | . . |
F01D 5/12 | . |
F01D 5/14 | . . | Form or construction (selecting particular materials, measures against erosion or corrosion F01D 5/28) [2013-01] |
F01D 5/141 | . . . | {Shape, i.e. outer, aerodynamic form (F01D 5/148 - F01D 5/20 take precedence; blade construction F01D 5/147)} [2016-05] |
F01D 5/142 | . . . . | {of the blades of successive rotor or stator blade-rows} [2013-01] |
F01D 5/143 | . . . . . | {Contour of the outer or inner working fluid flow path wall, i.e. shroud or hub contour} [2013-01] |
F01D 5/145 | . . . . | {Means for influencing boundary layers or secondary circulations (for compressors F04D 29/68)} [2013-01] |
F01D 5/146 | . . . . | {of blades with tandem configuration, split blades or slotted blades} [2013-01] |
F01D 5/147 | . . . | {Construction, i.e. structural features, e.g. of weight-saving hollow blades (F01D 5/148, F01D 5/16 and F01D 5/20 take precedence; blade shape F01D 5/141; blades with cooling or heating channels or cavities F01D 5/18; heating, heat-insulating or cooling means on blades F01D 5/18)} [2013-01] |
F01D 5/148 | . . . | {Blades with variable camber, e.g. by ejection of fluid} [2013-01] |
F01D 5/16 | . . . | for counteracting blade vibration [2013-01] |
F01D 5/18 | . . . | Hollow blades, {i.e. blades with cooling or heating channels or cavities (structure of hollow blades in general F01D 5/147)}; Heating, heat-insulating or cooling means on blades [2013-01] |
F01D 5/181 | . . . . | {Blades having a closed internal cavity containing a cooling medium, e.g. sodium} [2013-01] |
F01D 5/182 | . . . . | {Transpiration cooling} [2013-01] |
F01D 5/183 | . . . . . | {Blade walls being porous} [2013-01] |
F01D 5/184 | . . . . . | {Blade walls being made of perforated sheet laminae} [2013-01] |
F01D 5/185 | . . . . | {Liquid cooling (F01D 5/181 takes precedence)} [2013-01] |
F01D 5/186 | . . . . | {Film cooling (F01D 5/187 takes precedence)} [2013-01] |
F01D 5/187 | . . . . | {Convection cooling} [2013-01] |
F01D 5/20 | . . . | Specially-shaped blade tips to seal space between tips and stator {(F01D 5/225 takes precedence)} [2013-01] |
F01D 5/22 | . . | Blade-to-blade connections, {e.g. for damping vibrations} [2013-01] |
F01D 5/26 | . . | Antivibration means not restricted to blade form or construction or to blade-to-blade connections {or to the use of particular materials} [2013-01] |
F01D 5/28 | . . | Selecting particular materials; {Particular measures relating thereto;} Measures against erosion or corrosion [2013-01] |
F01D 5/282 | . . . | {Selecting composite materials, e.g. blades with reinforcing filaments} [2013-01] |
F01D 5/284 | . . . | {Selection of ceramic materials} [2013-01] |
F01D 5/286 | . . . | {Particular treatment of blades, e.g. to increase durability or resistance against corrosion or erosion (F01D 5/288 takes precedence)} [2013-01] |
F01D 5/288 | . . . | {Protective coatings for blades} [2013-01] |
F01D 5/30 | . | Fixing blades to rotors; Blade roots {; Blade spacers} [2017-08] |
F01D 5/3007 | . . | {of axial insertion type} [2013-01] |
F01D 5/3023 | . . | {of radial insertion type, e.g. in individual recesses} [2013-01] |
F01D 5/303 | . . . | {in a circumferential slot} [2013-01] |
F01D 5/3038 | . . . . | {the slot having inwardly directed abutment faces on both sides} [2013-01] |
F01D 5/3046 | . . . | {the rotor having ribs around the circumference} [2013-01] |
F01D 5/3053 | . . | {by means of pins} [2013-01] |
F01D 5/3061 | . . | {by welding, brazing} [2013-01] |
F01D 5/3069 | . . | {between two discs or rings} [2013-01] |
F01D 5/3076 | . . | {Sheet metal discs} [2013-01] |
F01D 5/3084 | . . | {the blades being made of ceramics} [2013-01] |
F01D 5/3092 | . . | {Protective layers between blade root and rotor disc surfaces, e.g. anti-friction layers (F01D 5/288 takes precedence)} [2013-01] |
F01D 5/32 | . . | Locking, e.g. by final locking blades or keys [2014-02] |
F01D 5/323 | . . . | {Locking of axial insertion type blades by means of a key or the like parallel to the axis of the rotor} [2019-05] |
F01D 5/326 | . . . | {Locking of axial insertion type blades by other means} [2019-05] |
F01D 5/34 | . | Rotor-blade aggregates of unitary construction {, e.g. formed of sheet laminae; (discs formed of sheet laminae F01D 5/028; ceramic materials F01D 5/284, composite materials F01D 5/282)} [2017-08] |
F01D 7/00 |
F01D 7/02 | . | having adjustment responsive to speed [2013-01] |
F01D 9/00 | Stators [2024-01] |
F01D 9/02 | . | Nozzles; Nozzle boxes; Stator blades; Guide conduits {, e.g. individual nozzles (nozzle boxes F01D 9/047)} [2016-08] |
F01D 9/023 | . . | {Transition ducts between combustor cans and first stage of the turbine in gas-turbine engines; their cooling or sealings} [2013-01] |
F01D 9/026 | . . | {Scrolls for radial machines or engines} [2013-01] |
F01D 9/04 | . . | forming ring or sector [2013-01] |
F01D 9/041 | . . . | {using blades (F01D 5/148 takes precedence)} [2013-01] |
F01D 9/042 | . . . | {fixing blades to stators (fixing stator-rings in the casing or to each other F01D 25/246)} [2013-01] |
F01D 9/044 | . . . . | {permanently, e.g. by welding, brazing, casting or the like} [2013-01] |
F01D 9/045 | . . . | {for radial flow machines or engines} [2013-01] |
F01D 9/047 | . . . | {Nozzle boxes} [2013-01] |
F01D 9/048 | . . . | {for radial admission} [2013-01] |
F01D 9/06 | . | Fluid supply conduits to nozzles or the like [2013-01] |
F01D 9/065 | . . | {Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids (see also F01D 25/16, F01D 25/24 and F01D 25/26)} [2016-08] |
F01D 11/00 | Preventing or minimising internal leakage of working-fluid, e.g. between stages (sealings in general F16J {; sealing arrangements for transition ducts of combustor cans F01D 9/023}) [2017-08] |
F01D 11/001 | . | {for sealing space between stator blade and rotor} [2013-01] |
F01D 11/003 | . | {by packing rings; Mechanical seals} [2013-01] |
F01D 11/005 | . | {Sealing means between non relatively rotating elements} [2013-01] |
F01D 11/006 | . . | {Sealing the gap between rotor blades or blades and rotor} [2013-01] |
F01D 11/008 | . . . | {by spacer elements between the blades, e.g. independent interblade platforms} [2013-01] |
F01D 11/02 | . | by non-contact sealings, e.g. of labyrinth type (for sealing space between rotor blade tips and stator F01D 11/08) [2013-01] |
F01D 11/025 | . . | {Seal clearance control; Floating assembly; Adaptation means to differential thermal dilatations} [2013-01] |
F01D 11/04 | . . | using sealing fluid, e.g. steam [2013-01] |
F01D 11/06 | . . . | Control thereof [2013-01] |
F01D 11/08 | . | for sealing space between rotor blade tips and stator (specially-shaped blade tips therefor F01D 5/20) [2013-01] |
F01D 11/10 | . . | using sealing fluid, e.g. steam [2013-01] |
F01D 11/12 | . . | using a rubstrip, e.g. erodible. deformable or resiliently-biased part [2013-01] |
F01D 11/122 | . . . | {with erodable or abradable material (blades having cutting or grinding tips F01D 5/20)} [2013-01] |
F01D 11/125 | . . . . | {with a reinforcing structure} [2013-01] |
F01D 11/127 | . . . | {with a deformable or crushable structure, e.g. honeycomb} [2013-01] |
F01D 11/14 | . . | Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing (rotors with blades adjustable in operation F01D 7/00) [2017-01] |
F01D 13/00 | Combinations of two or more machines or engines (F01D 15/00 takes precedence; combinations of two or more pumps F04; fluid gearing F16H) [2024-01] |
F01D 13/003 | . | {with at least two independent shafts, i.e. cross-compound} [2013-01] |
F01D 13/006 | . | {one being a reverse turbine} [2013-01] |
F01D 13/02 | . | Working-fluid interconnection of machines or engines [2013-01] |
F01D 15/00 | Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby [2024-01] |
F01D 15/005 | . | {Adaptations for refrigeration plants} [2013-01] |
F01D 15/02 | . | Adaptations for driving vehicles, e.g. locomotives [2024-01] |
F01D 15/04 | . . | the vehicles being waterborne vessels [2013-01] |
F01D 15/045 | . . . | {Control thereof} [2013-01] |
F01D 15/06 | . | Adaptations for driving, or combinations with, hand-held tools or the like {control thereof} [2013-01] |
F01D 15/062 | . . | {Controlling means specially adapted therefor} [2013-01] |
F01D 15/065 | . . | {with pressure-velocity transformation exclusively in rotor} [2013-01] |
F01D 15/067 | . . | {characterised by non-bladed rotor} [2013-01] |
F01D 15/08 | . | Adaptations for driving, or combinations with, pumps [2013-01] |
F01D 15/10 | . | Adaptations for driving, or combinations with, electric generators [2013-01] |
F01D 15/12 | . |
F01D 17/00 | Regulating or controlling by varying flow (for reversing F01D 1/30; by varying rotor-blade position F01D 7/00; specially for starting F01D 19/00; shutting-down F01D 21/00; regulating or controlling in general G05 {; specially adapted for hand-held tools or the like F01D 15/06}) [2017-08] |
F01D 17/02 | . | Arrangement of sensing elements [2024-01] |
F01D 17/04 | . . | responsive to load [2013-01] |
F01D 17/06 | . . | responsive to speed [2013-01] |
F01D 17/08 | . . | responsive to condition of working-fluid, e.g. pressure [2013-01] |
F01D 17/085 | . . . | {to temperature} [2013-01] |
F01D 17/10 | . |
F01D 17/105 | . . | {by passing part of the fluid} [2013-01] |
F01D 17/12 | . . | arranged in stator parts [2013-01] |
F01D 17/14 | . . . | varying effective cross-sectional area of nozzles or guide conduits [2013-01] |
F01D 17/141 | . . . . | {by means of shiftable members or valves obturating part of the flow path} [2013-01] |
F01D 17/143 | . . . . . | {the shiftable member being a wall, or part thereof of a radial diffuser} [2013-01] |
F01D 17/145 | . . . . . | {by means of valves, e.g. for steam turbines (valves in general F16K)} [2013-01] |
F01D 17/146 | . . . . | {by throttling the volute inlet of radial machines or engines} [2013-01] |
F01D 17/148 | . . . . | {by means of rotatable members, e.g. butterfly valves} [2013-01] |
F01D 17/16 | . . . . | by means of nozzle vanes [2013-01] |
F01D 17/162 | . . . . . | {for axial flow, i.e. the vanes turning around axes which are essentially perpendicular to the rotor centre line (F01D 17/167 takes precedence)} [2016-08] |
F01D 17/165 | . . . . . | {for radial flow, i.e. the vanes turning around axes which are essentially parallel to the rotor centre line (F01D 17/167 takes precedence)} [2016-08] |
F01D 17/167 | . . . . . | {of vanes moving in translation} [2013-01] |
F01D 17/18 | . . . | varying effective number of nozzles or guide conduits {, e.g. sequentially operable valves for steam turbines} [2016-08] |
F01D 17/20 | . | Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted (sensing elements alone F01D 17/02; final actuators alone F01D 17/10) [2013-01] |
F01D 17/205 | . . | {Centrifugal governers directly linked to valves} [2013-01] |
F01D 17/22 | . . | the operation or power assistance being predominantly non-mechanical [2013-01] |
F01D 17/24 | . . . | electrical [2013-01] |
F01D 17/26 | . . . | fluid, e.g. hydraulic [2013-01] |
F01D 19/00 | Starting of machines or engines; Regulating, controlling, or safety means in connection therewith (warming-up before starting F01D 25/10; turning or inching gear F01D 25/34) [2013-01] |
F01D 19/02 | . | dependent on temperature of component parts, e.g. of turbine-casing [2013-01] |
F01D 21/00 | Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for [2013-01] |
F01D 21/003 | . | {Arrangements for testing or measuring (for measuring vibrations G01H)} [2013-01] |
F01D 21/006 | . | {Arrangements of brakes (brakes per se F16D)} [2013-01] |
F01D 21/02 | . | Shutting-down responsive to overspeed [2013-01] |
F01D 21/04 | . | responsive to undesired position of rotor relative to stator {or to breaking-off of a part of the rotor}, e.g. indicating such position [2013-01] |
F01D 21/045 | . . | {special arrangements in stators or in rotors dealing with breaking-off of part of rotor} [2013-01] |
F01D 21/06 | . . | Shutting-down [2013-01] |
F01D 21/08 | . . | Restoring position [2013-01] |
F01D 21/10 | . | responsive to unwanted deposits on blades, in working-fluid conduits or the like [2013-01] |
F01D 21/12 | . | responsive to temperature [2013-01] |
F01D 21/14 | . | responsive to other specific conditions [2013-01] |
F01D 21/16 | . | Trip gear [2013-01] |
F01D 21/18 | . . | involving hydraulic means [2013-01] |
F01D 21/20 | . | Checking operation of shut-down devices [2013-01] |
F01D 23/00 | Non-positive-displacement machines or engines with movement other than pure rotation, e.g. of endless-chain type [2013-01] |
F01D 25/00 | Component parts, details, or accessories, not provided for in, or of interest apart from, other groups [2013-01] |
F01D 25/002 | . | {Cleaning of turbomachines} [2013-01] |
F01D 25/005 | . | {Selecting particular materials} [2013-01] |
F01D 25/007 | . | {Preventing corrosion} [2013-01] |
F01D 25/02 | . | De-icing means for engines having icing phenomena [2013-01] |
F01D 25/04 | . | Antivibration arrangements [2013-01] |
F01D 25/06 | . . |
F01D 25/08 | . |
F01D 25/10 | . . | Heating, e.g. warming-up before starting [2013-01] |
F01D 25/12 | . . | Cooling [2013-01] |
F01D 25/125 | . . . | {of bearings} [2013-01] |
F01D 25/14 | . . |
F01D 25/145 | . . . | {Thermally insulated casings} [2013-01] |
F01D 25/16 | . | Arrangement of bearings; Supporting or mounting bearings in casings (bearings per se F16C) [2013-01] |
F01D 25/162 | . . | {Bearing supports} [2013-01] |
F01D 25/166 | . . | {Sliding contact bearing (gas bearings F01D 25/22)} [2013-01] |
F01D 25/18 | . |
F01D 25/183 | . . | {Sealing means} [2013-01] |
F01D 25/186 | . . . | {for sliding contact bearing} [2013-01] |
F01D 25/20 | . . | using lubrication pumps [2013-01] |
F01D 25/22 | . . | using working-fluid or other gaseous fluid as lubricant [2013-01] |
F01D 25/24 | . | Casings (modified for heating or cooling F01D 25/14); Casing parts, e.g. diaphragms, casing fastenings (casings for rotary machines or engines in general F16M {; special arrangements in stators dealing with breaking-off of part of rotor F01D 21/045}) [2017-08] |
F01D 25/243 | . . | {Flange connections; Bolting arrangements (F01D 25/265 takes precedence)} [2013-01] |
F01D 25/246 | . . | {Fastening of diaphragms or stator-rings} [2013-01] |
F01D 25/26 | . . | Double casings; Measures against temperature strain in casings [2013-01] |
F01D 25/265 | . . . | {Vertically split casings; Clamping arrangements therefor} [2013-01] |
F01D 25/28 | . | Supporting or mounting arrangements, e.g. for turbine casing [2013-01] |
F01D 25/285 | . . | {Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures} [2013-01] |
F01D 25/30 | . | Exhaust heads, chambers, or the like [2013-01] |
F01D 25/32 | . | Collecting of condensation water; Drainage {; Removing solid particles} [2023-08] |
F01D 25/34 | . | Turning or inching gear [2013-01] |
F01D 25/36 | . . | using electric motors [2013-01] |