Skip over navigation
Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
Collapse
IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES (
{
anti-pollution means for internal-combustion engines F02B 17/00
}
; specially adapted for rotary-piston or oscillating-piston engines F02B 53/12;
{
ignition of gas turbine plants F02C 7/26; ignition of jet propulsion plants F02K 9/95; starting of combustion engines F02N 9/00
}
; ignition of combustion apparatus in general, glowing plugs F23Q; measuring of physical variables in general G01; controlling in general G05; data processing in general G06; electrical components in general see Section H;
{
ignition coils H01F 38/12
}
; sparking plugs H01T 13/00)
Collapse
Guide Heading:
Electric spark ignition installations characterised by the type of ignition power generation or storage
Collapse
Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
{
(combination starter-magneto F02N 11/06; magneto- or dynamo-electric generators H02K 21/00)
}
F02P 1/005
.
{
Construction and fastening of elements of magnetos other than the magnetic circuit and the windings (F02P 1/02 to F02P 1/08 take precedence)
}
F02P 1/02
.
the generator rotor being characterised by forming part of the engine flywheel
F02P 1/04
.
the generator being specially adapted for use with specific engine types, e.g. engines with V arrangement of cylinders
F02P 1/06
.
Generator drives, e.g. having snap couplings
Collapse
.
Layout of circuits
. .
{
for generating sparks by opening or closing a coil circuit
}
. .
{
for generating sparks by discharging a capacitor into a coil circuit
}
Collapse
Other installations
F02P 3/005
.
{
having inductive-capacitance energy storage (capacitive storage installations using an intermediate charging inductance F02P 3/0876)
}
F02P 3/01
.
Electric spark ignition installations without subsequent energy storage, i.e. energy supplied by an electrical oscillator (with magneto- or dynamo-electric generators F02P 1/00; piezo-electric ignition F02P 3/12; with continuous electric spark F02P 15/10)
Collapse
.
having inductive energy storage, e.g. arrangements of induction coils
{
(ignition coils structurally combined with sparking plugs F02P 13/00; constructional details of ignition coils H01F 38/12)
}
Collapse
F02P 3/04
. .
Layout of circuits
Collapse
F02P 3/0407
. . .
{
Opening or closing the primary coil circuit with electronic switching means (F02P 3/045 to F02P 3/055 take precedence)
}
F02P 3/0414
. . . .
{
using digital techniques (F02P 3/0428, F02P 3/0442 take precedence)
}
Collapse
F02P 3/0421
. . . .
{
with electronic tubes
}
F02P 3/0428
. . . . .
{
using digital techniques
}
Collapse
F02P 3/0435
. . . .
{
with semiconductor devices (Fo2P3/045B, F02P 3/051, F02P 3/0552 take precedence)
}
F02P 3/0442
. . . . .
{
using digital techniques (F02P 3/0456, F02P 3/053, F02P 3/0554, F02P 3/0558 take precedence)
}
Collapse
F02P 3/045
. . .
for control of the dwell or anti dwell time
Collapse
F02P 3/0453
. . . .
{
Opening or closing the primary coil circuit with semiconductor devices
}
F02P 3/0456
. . . . .
{
using digital techniques
}
Collapse
F02P 3/05
. . .
for control of the magnitude of the current in the ignition coil (during starting F02P 15/12)
Collapse
F02P 3/051
. . . .
{
Opening or closing the primary coil circuit with semiconductor devices
}
F02P 3/053
. . . . .
{
using digital techniques
}
Collapse
F02P 3/055
. . .
with protective means to prevent damage to the circuit,
{
e.g. semiconductor devices
}
or the ignition coil
Collapse
F02P 3/0552
. . . .
{
Opening or closing the primary coil circuit with semiconductor devices
}
F02P 3/0554
. . . . .
{
using digital techniques (F02P 3/0558 takes precedence)
}
Collapse
F02P 3/0556
. . . . .
{
Protecting the coil when the engine is stopped
}
F02P 3/0558
. . . . . .
{
using digital techniques
}
Collapse
.
having capacitive energy storage (piezo-electric or electrostatic ignition F02P 3/12)
Collapse
F02P 3/08
. .
Layout of circuits (for low tension F02P 3/10)
Collapse
F02P 3/0807
. . .
{
Closing the discharge circuit of the storage capacitor with electronic switching means (F02P 3/0853, F02P 3/0876, F02P 3/09 take precedence)
}
F02P 3/0815
. . . .
{
using digital techniques (F02P 3/083, F02P 3/0846 take precedence)
}
Collapse
F02P 3/0823
. . . .
{
with electronic tubes
}
F02P 3/083
. . . . .
{
using digital techniques
}
Collapse
F02P 3/0838
. . . .
{
with semiconductor devices (F02P 3/0861, F02P 3/0884, F02P 3/093 take precedence)
}
F02P 3/0846
. . . . .
{
using digital techniques (F02P 3/0869, F02P 3/0892, F02P 3/096 take precedence)
}
Collapse
F02P 3/0853
. . .
{
for control of the dwell or anti-dwell time
}
Collapse
F02P 3/0861
. . . .
{
Closing the discharge circuit of the storage capacitor with semiconductor devices
}
F02P 3/0869
. . . . .
{
using digital techniques
}
Collapse
F02P 3/0876
. . .
{
the storage capacitor being charged by means of an energy converter (DC-DC converter) or of an intermediate storage inductance
}
Collapse
F02P 3/0884
. . . .
{
Closing the discharge circuit of the storage capacitor with semiconductor devices
}
F02P 3/0892
. . . . .
{
using digital techniques
}
Collapse
F02P 3/09
. . .
for control of the charging current in the capacitor (F02P 15/12 takes precedence)
Collapse
F02P 3/093
. . . .
{
Closing the discharge circuit of the storage capacitor with semiconductor devices
}
F02P 3/096
. . . . .
{
using digital techniques
}
. .
Low-tension installation, e.g. using surface-discharge sparking plugs
.
Piezo-electric ignition; Electrostatic ignition
Collapse
Guide Heading:
Advancing or retarding electric ignition spark; Arrangements of distributors or of circuit-makers or -breakers for electric spark ignition; Electric spark ignition control or safety means, not otherwise provided for
Collapse
Advancing or retarding ignition; Control therefor
F02P 5/005
.
{
with combination of automatic and non- automatic means
}
F02P 5/02
.
non-automatically; dependent on position of personal controls of engine, e.g. throttle position
Collapse
F02P 5/04
.
automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions (dependent on position of personal controls of engine F02P 5/02)
. .
{
combined with electronic control of other engine functions, e.g. fuel injection (in general F02D 37/02)
}
Collapse
F02P 5/05
. .
using mechanical means
Collapse
F02P 5/06
. . .
dependent on engine speed
Collapse
F02P 5/07
. . . .
Centrifugal timing mechanisms
F02P 5/075
. . . . .
{
Centrifugal devices combined with other specific conditions
}
Collapse
F02P 5/10
. . .
dependent on fluid pressure in engine, e.g. combustion-air pressure
Collapse
F02P 5/103
. . . .
{
dependent on the combustion-air pressure in engine
}
F02P 5/106
. . . . .
{
Combustion-air pressure devices combined with other specific conditions (with centrifugal devices F02P 5/075)
}
F02P 5/12
. . . .
dependent a specific pressure other than that of combustion-air, e.g. of exhaust, cooling fluid, lubricant
Collapse
F02P 5/14
. . .
dependent on specific conditions other than engine speed or engine fluid pressure, e.g. temperature
F02P 5/142
. . . .
{
dependent on a combination of several specific conditions (F02P 5/075, F02P 5/106 takes precedence)
}
Collapse
F02P 5/145
. .
using electrical means
F02P 5/1455
. . .
{
by using a second control of the closed loop type (dependent on pinking F02P 5/152)
}
Collapse
F02P 5/15
. . .
digital data processing
Collapse
. . . .
{
using one central computing unit
}
F02P 5/1504
. . . . .
{
with particular means during a transient phase, e.g. acceleration, deceleration, gear change (during starting F02P 5/1506)
}
F02P 5/1506
. . . . .
{
with particular means during starting
}
F02P 5/1508
. . . . .
{
with particular means during idling
}
F02P 5/151
. . . . .
{
with means for compensating the variation of the characteristics of the engine or of a sensor, e.g. by ageing
}
F02P 5/1512
. . . . .
{
with particular means concerning an individual cylinder
}
F02P 5/1514
. . . . .
{
with means for optimising the use of registers or of memories, e.g. interpolation
}
F02P 5/1516
. . . . .
{
with means relating to exhaust gas recirculation, e.g. turbo
}
F02P 5/1518
. . . .
{
using two or more central computing units, e.g. interpolation
}
Collapse
. . . .
dependent on pinking (detecting or indicating knocks in internal-combustion engines G01L 23/22)
F02P 5/1521
. . . . .
{
with particular means during a transient phase, e.g. starting, acceleration, deceleration, gear change
}
F02P 5/1522
. . . . .
{
with particular means concerning an individual cylinder
}
F02P 5/1523
. . . . .
{
with particular laws of return to advance, e.g. step by step, differing from the laws of retard
}
F02P 5/1525
. . . . .
{
with means for compensating the variation of the characteristics of the pinking sensor or of the electrical means, e.g. by ageing (when variation of characteristics results only from incorrect functioning F02P 5/1526)
}
F02P 5/1526
. . . . .
{
with means for taking into account incorrect functioning of the pinking sensor or of the electrical means
}
F02P 5/1527
. . . . .
{
with means allowing burning of two or more fuels, e.g. super or normal, premium or regular
}
F02P 5/1528
. . . . .
{
for turbocompressed engine
}
F02P 5/153
. . . .
dependent on combustion pressure
Collapse
F02P 5/155
. . .
Analogue data processing
F02P 5/1551
. . . .
{
by determination of elapsed time with reference to a particular point on the motor axle, dependent on specific conditions
}
Collapse
F02P 5/1553
. . . .
{
by determination of elapsed angle with reference to a particular point on the motor axle, dependent on specific conditions
}
F02P 5/1555
. . . . .
{
using a continuous control, dependent on speed
}
F02P 5/1556
. . . . .
{
using a stepped control, dependent on speed
}
F02P 5/1558
. . . .
{
with sepcial measures for starting
}
F02P 5/16
.
characterised by the mechanical transmission between sensing elements or personal controls and final actuating elements
Collapse
Arrangements of distributors, circuit-makers or -breakers,
{
e.g. of distributor and circuit-breaker combinations
}
or pick-up devices (advancing or retarding ignition or control therefor F02P 5/00; such devices per se, see the relevant classes of Section H, e.g. rotary switches H01H 19/00, contact-breakers, distributors H01R 39/00, generators H02K)
Collapse
F02P 7/02
.
of distributors
Collapse
F02P 7/021
. .
{
Mechanical distributors
}
F02P 7/022
. . .
{
Details of the distributor rotor or electrode
}
F02P 7/023
. . .
{
with magnetically controlled mechanical contacts
}
F02P 7/025
. . .
{
with noise suppression means specially adapted for the distributor
}
Collapse
F02P 7/026
. . .
{
Distributors combined with other ignition devices, e.g. coils, fuel-injectors
}
F02P 7/027
. . . .
{
combined with centrifugal advance devices
}
F02P 7/028
. . . .
{
combined with circuit-makers or -breakers (and with centrifugal advance devices F02P 7/027)
}
Collapse
F02P 7/03
. .
with electrical means (ignition occuring simultaneously at different places in one engine cylinder or in two or more separate engine cylinders F02P 15/08)
F02P 7/035
. . .
{
without mechanical switching means
}
F02P 7/04
. .
having distributors with air-tight casing
Collapse
.
of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
F02P 7/061
. .
{
pick-up devices without mechanical contacts (F02P 7/067 to F02P 7/077 take precedence)
}
Collapse
F02P 7/063
. .
Mechanical pick-up devices, circuit-makers or -breakers, e.g. contact-breakers
F02P 7/0631
. . .
{
Constructional details of contacts
}
F02P 7/0632
. . .
{
with rotary contacts
}
F02P 7/0634
. . .
{
Details of cams or cam-followers
}
F02P 7/0635
. . .
{
with means to set the breaker gap
}
F02P 7/0637
. . .
{
with several circuit-makers or -breakers actuated by the same cam
}
F02P 7/0638
. . .
{
with noise suppression means specially adapted for the breakers
}
Collapse
. .
Electromagnetic pick-up devices,
{
e.g. providing induced current in a coil
}
F02P 7/0672
. . .
{
using Wiegand effect
}
F02P 7/0675
. . .
{
with variable reluctance, e.g. depending on the shape of a tooth
}
F02P 7/0677
. . .
{
Mechanical arrangements
}
F02P 7/07
. . .
Hall-effect pick-up devices
F02P 7/073
. .
Optical pick-up devices
Collapse
F02P 7/077
. .
Circuits therefor, e.g. pulse generators
. . .
{
Electronical verniers
}
F02P 7/08
. .
having air-tight casings
F02P 7/10
.
Drives of distributors or of circuit-makers or -breakers
Collapse
Electric spark ignition control, not otherwise provided for
Collapse
F02P 9/002
.
{
Control of spark intensity, intensifying, lengthening, suppression (by means of current control in the storage devices F02P 3/05, F02P 3/09, during starting F02P 15/12)
}
. .
{
by weakening or suppression of sparks to limit the engine speed
}
. .
{
by supplementary electrical discharge in the pre-ionised electrode interspace of the sparking plug, e.g. plasma jet ignition
}
Collapse
Safety means for electric spark ignition, not otherwise provided for
Collapse
F02P 11/02
.
Preventing damage to engines or engine-driven gearing
F02P 11/025
. .
{
Shortening the ignition when the engine is stopped (to prevent damage to the coil F02P 3/0556)
}
F02P 11/04
.
Preventing unauthorised use of engines (of vehicles B60R 25/04; ignition locks H01H 27/00)
F02P 11/06
.
Indicating unsafe conditions
Sparking plugs structurally combined with other parts of internal-combustion engines (
{
connection of ignition coil to spark plug connector F02P 3/02
}
; with fuel injectors F02M 57/06;
{
spark plug connectors per se H01T 13/04 to H01T 13/06; predominant aspects of sparking plug, see H01T 13/40 to H01T 13/44
}
; predominant aspects of the parts, see the relevant subclasses)
Collapse
Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P 1/00 to F02P 13/00
{
and combined with layout of ignition circuits (not combined F02B, F02C, F02G, F02K)
}
Collapse
F02P 15/001
.
{
Ignition installations adapted to specific engine types (ignition of jet propulsion plants F02K 9/95; for rotary piston engines F02B 53/12)
}
F02P 15/003
. .
{
Layout of ignition circuits for gas turbine plants (ignition of gas turbine plants per se F02C 7/26)
}
F02P 15/005
. .
{
Layout of ignition circuits for rotary- or oscillating piston engines (ignition of those engines per se F02B 53/12)
}
F02P 15/006
.
{
Ignition installations combined with other systems, e.g. fuel injection (to advance or to retard the ignition spark F02P 5/045)
}
F02P 15/008
.
{
Reserve ignition systems; Redundancy of some ignition devices
}
.
Arrangements having two or more sparking plugs
F02P 15/04
.
one of the spark electrodes being mounted on the engine working piston
F02P 15/06
.
the electric spark triggered by engine working cylinder compression
F02P 15/08
.
having multiple-spark ignition, i.e. ignition occurring simultaneously at different places in one engine cylinder or in two or more separate engine cylinders
F02P 15/10
.
having continuous electric sparks
F02P 15/12
.
having means for strengthening spark during starting
Collapse
Testing of ignition installations, e.g. in combination with adjusting (testing fuel injection apparatus F02M 65/00; testing ignition installations in general F23Q 23/00); Testing of ignition timing in compression-ignition engines
F02P 2017/003
.
{
using an inductive sensor, e.g. trigger tongs
}
F02P 2017/006
.
{
using a capacitive sensor
}
Collapse
F02P 17/02
.
Checking or adjusting ignition timing
Collapse
F02P 17/04
. .
dynamically
F02P 17/06
. . .
using a stroboscopic lamp
F02P 17/08
. . .
using a cathode-ray oscilloscope (F02P 17/06 takes precedence)
F02P 17/10
.
Measuring dwell or antidwell time
Collapse
.
Testing characteristics of the spark, ignition voltage or current (testing of sparking plugs H01T 13/60)
F02P 2017/121
. .
{
by measuring spark voltage
}
F02P 2017/123
. .
{
Generating additional sparks for diagnostics
}
Collapse
F02P 2017/125
. .
{
Measuring ionisation of combustion gas, e.g. by using ignition circuits
}
F02P 2017/126
. . .
{
for burners
}
F02P 2017/128
. . .
{
for knock detection
}
Collapse
Guide Heading:
Other ignition
Collapse
Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
Collapse
.
electric, e.g. layout of circuits of apparatus having glowing plugs
Collapse
F02P 19/021
. .
{
characterised by power delivery controls
}
F02P 19/022
. . .
{
using intermittent current supply
}
F02P 19/023
. . .
{
Individual control of the glow plugs
}
F02P 19/025
. .
{
with means for determining glow plug temperature or glow plug resistance
}
F02P 19/026
. .
{
Glow plug actuation during engine operation
}
F02P 19/027
. .
{
Safety devices, e.g. for diagnosing the glow plugs or the related circuits
}
F02P 19/028
. .
{
the glow plug being combined with or used as a sensor
}
F02P 19/04
.
non-electric, e.g. heating incandescent spots by burners (use of burners for direct ignition F02P 21/00)
Collapse
Direct use of flames or burners for ignition
F02P 21/02
.
the flames being kept burning essentially external to engine working chambers
F02P 21/04
.
Burning-cartridges or like inserts being arranged in engine working chambers (as starting aid F02N 19/02)
Collapse
F02P 23/00
Other ignition
F02P 23/02
.
Friction, pyrophoric, or catalytic ignition
Collapse
.
Other physical ignition means, e.g. using laser rays
. .
{
using electromagnetic microwaves
}
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013