F02P1/00	7	Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage {(combination starter-magneto F02N11/06; magneto- or dynamo-electric generators H02K21/00)}	F02P1/00	F02P1/00		201
F02P1/005	8	{Construction and fastening of elements of magnetos other than the magnetic circuit and the windings (F02P1/02&#160;-&#160;F02P1/08 take precedence)}	F02P1/00	F02P1/00		786
F02P1/02	8	the generator rotor being characterised by forming part of the engine flywheel	F02P1/02	F02P1/02		131
F02P1/04	8	the generator being specially adapted for use with specific engine types, e.g. engines with V arrangement of cylinders	F02P1/04	F02P1/04		36
F02P1/06	8	Generator drives, e.g. having snap couplings	F02P1/06	F02P1/06		20
F02P1/08	8	Layout of circuits	F02P1/08	F02P1/08		143
F02P1/083	9	{for generating sparks by opening or closing a coil circuit}	F02P1/08	F02P1/08		232
F02P1/086	9	{for generating sparks by discharging a capacitor into a coil circuit}	F02P1/08	F02P1/08		648
F02P3/00	7	Other installations	F02P3/00	F02P3/00		217
F02P3/005	8	{having inductive-capacitance energy storage (capacitive storage installations using an intermediate charging inductance F02P3/0876)}	F02P3/00	F02P3/00		123
F02P3/01	8	Electric spark ignition installations without subsequent energy storage, i.e. energy supplied by an electrical oscillator (with magneto- or dynamo-electric generators F02P1/00; piezoelectric ignition F02P3/12; with continuous electric spark F02P15/10)	F02P3/01	F02P3/01		469
F02P3/02	8	having inductive energy storage, e.g. arrangements of induction coils {(ignition coils structurally combined with sparking plugs F02P13/00; constructional details of ignition coils H01F38/12)}	F02P3/02	F02P3/02		985
F02P3/04	9	Layout of circuits	F02P3/04	F02P3/04		408
F02P3/0407	10	{Opening or closing the primary coil circuit with electronic switching means (F02P3/045&#160;-&#160;F02P3/055 take precedence)}	F02P3/04	F02P3/04		138
F02P3/0414	11	{using digital techniques (F02P3/0428, F02P3/0442 take precedence)}	F02P3/04	F02P3/04		41
F02P3/0421	11	{with electronic tubes}	F02P3/04	F02P3/04		13
F02P3/0428	12	{using digital techniques}	F02P3/04	F02P3/04		6
F02P3/0435	11	{with semiconductor devices (F02P3/0453, F02P3/051, F02P3/0552 take precedence)}	F02P3/04	F02P3/04		535
F02P3/0442	12	{using digital techniques (F02P3/0456, F02P3/053, F02P3/0554, F02P3/0558 take precedence)}	F02P3/04	F02P3/04		160
F02P3/045	10	for control of the dwell or anti dwell time	F02P3/045	F02P3/045		134
F02P3/0453	11	{Opening or closing the primary coil circuit with semiconductor devices}	F02P3/045	F02P3/045		395
F02P3/0456	12	{using digital techniques}	F02P3/045	F02P3/045		298
F02P3/05	10	for control of the magnitude of the current in the ignition coil (during starting F02P15/12)	F02P3/05	F02P3/05		151
F02P3/051	11	{Opening or closing the primary coil circuit with semiconductor devices}	F02P3/05	F02P3/05		436
F02P3/053	12	{using digital techniques}	F02P3/05	F02P3/05		197
F02P3/055	10	with protective means to prevent damage to the circuit, {e.g. semiconductor devices} or the ignition coil	F02P3/055	F02P3/055		115
F02P3/0552	11	{Opening or closing the primary coil circuit with semiconductor devices}	F02P3/055	F02P3/055		336
F02P3/0554	12	{using digital techniques (F02P3/0558 takes precedence)}	F02P3/055	F02P3/055		84
F02P3/0556	12	{Protecting the coil when the engine is stopped}	F02P3/055	F02P3/055		57
F02P3/0558	13	{using digital techniques}	F02P3/055	F02P3/055		6
F02P3/06	8	having capacitive energy storage (piezoelectric or electrostatic ignition F02P3/12)	F02P3/06	F02P3/06		80
F02P3/08	9	Layout of circuits (for low tension F02P3/10)	F02P3/08	F02P3/08		171
F02P3/0807	10	{Closing the discharge circuit of the storage capacitor with electronic switching means (F02P3/0853, F02P3/0876, F02P3/09 take precedence)}	F02P3/08	F02P3/08		98
F02P3/0815	11	{using digital techniques (F02P3/083, F02P3/0846 take precedence)}	F02P3/08	F02P3/08		16
F02P3/0823	11	{with electronic tubes}	F02P3/08	F02P3/08		14
F02P3/083	12	{using digital techniques}	F02P3/08	F02P3/08		6
F02P3/0838	11	{with semiconductor devices (F02P3/0861, F02P3/0884, F02P3/093 take precedence)}	F02P3/08	F02P3/08		205
F02P3/0846	12	{using digital techniques (F02P3/0869, F02P3/0892, F02P3/096 take precedence)}	F02P3/08	F02P3/08		33
F02P3/0853	10	{for control of the dwell or anti-dwell time}	F02P3/08	F02P3/08		14
F02P3/0861	11	{Closing the discharge circuit of the storage capacitor with semiconductor devices}	F02P3/08	F02P3/08		42
F02P3/0869	12	{using digital techniques}	F02P3/08	F02P3/08		21
F02P3/0876	10	{the storage capacitor being charged by means of an energy converter (DC-DC converter) or of an intermediate storage inductance}	F02P3/08	F02P3/08		68
F02P3/0884	11	{Closing the discharge circuit of the storage capacitor with semiconductor devices}	F02P3/08	F02P3/08		550
F02P3/0892	12	{using digital techniques}	F02P3/08	F02P3/08		54
F02P3/09	10	for control of the charging current in the capacitor (F02P15/12 takes precedence)	F02P3/09	F02P3/09		31
F02P3/093	11	{Closing the discharge circuit of the storage capacitor with semiconductor devices}	F02P3/09	F02P3/09		67
F02P3/096	12	{using digital techniques}	F02P3/09	F02P3/09		19
F02P3/10	9	Low-tension installation, e.g. using surface-discharge sparking plugs	F02P3/10	F02P3/10		47
F02P3/12	8	Piezoelectric ignition; Electrostatic ignition	F02P3/12	F02P3/12		132
F02P5/00	7	Advancing or retarding ignition; Control therefor	F02P5/00	F02P5/00		133
F02P5/005	8	{with combination of automatic and non- automatic means}	F02P5/00	F02P5/00		65
F02P5/02	8	non-automatically; dependent on position of personal controls of engine, e.g. throttle position	F02P5/02	F02P5/02		717
F02P5/04	8	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 F02P5/02)	F02P5/04	F02P5/04		219
F02P5/045	9	{combined with electronic control of other engine functions, e.g. fuel injection (in general F02D37/02)}	F02P5/04	F02P5/04		1138
F02P5/05	9	using mechanical means	F02P5/05	F02P5/05		130
F02P5/06	10	dependent on engine speed	F02P5/06	F02P5/06		846
F02P5/07	11	Centrifugal timing mechanisms	F02P5/07	F02P5/07		36
F02P5/075	12	{Centrifugal devices combined with other specific conditions}	F02P5/07	F02P5/07		117
F02P5/10	10	dependent on fluid pressure in engine, e.g. combustion-air pressure	F02P5/10	F02P5/10		22
F02P5/103	11	{dependent on the combustion-air pressure in engine}	F02P5/10	F02P5/10		939
F02P5/106	12	{Combustion-air pressure devices combined with other specific conditions (with centrifugal devices F02P5/075)}	F02P5/10	F02P5/10		156
F02P5/12	11	dependent a specific pressure other than that of combustion-air, e.g. of exhaust, cooling fluid, lubricant	F02P5/12	F02P5/12		10
F02P5/14	10	dependent on specific conditions other than engine speed or engine fluid pressure, e.g. temperature	F02P5/14	F02P5/14		177
F02P5/142	11	{dependent on a combination of several specific conditions (F02P5/075, F02P5/106 takes precedence)}	F02P5/14	F02P5/14		53
F02P5/145	9	using electrical means	F02P5/145	F02P5/145		562
F02P5/1455	10	{by using a second control of the closed loop type (dependent on pinking F02P5/152)}	F02P5/145	F02P5/145		373
F02P5/15	10	Digital data processing	F02P5/15	F02P5/15		773
F02P5/1502	11	{using one central computing unit}	F02P5/15	F02P5/15		1136
F02P5/1504	12	{with particular means during a transient phase, e.g. acceleration, deceleration, gear change (during starting F02P5/1506)}	F02P5/15	F02P5/15		915
F02P5/1506	12	{with particular means during starting}	F02P5/15	F02P5/15		798
F02P5/1508	12	{with particular means during idling}	F02P5/15	F02P5/15		311
F02P5/151	12	{with means for compensating the variation of the characteristics of the engine or of a sensor, e.g. by ageing}	F02P5/15	F02P5/15		117
F02P5/1512	12	{with particular means concerning an individual cylinder}	F02P5/15	F02P5/15		295
F02P5/1514	12	{with means for optimising the use of registers or of memories, e.g. interpolation}	F02P5/15	F02P5/15		135
F02P5/1516	12	{with means relating to exhaust gas recirculation, e.g. turbo}	F02P5/15	F02P5/15		267
F02P5/1518	11	{using two or more central computing units, e.g. interpolation}	F02P5/15	F02P5/15		67
F02P5/152	11	dependent on pinking (detecting or indicating knocks in internal-combustion engines G01L23/22)	F02P5/152	F02P5/152		1240
F02P5/1521	12	{with particular means during a transient phase, e.g. starting, acceleration, deceleration, gear change}	F02P5/152	F02P5/152		290
F02P5/1522	12	{with particular means concerning an individual cylinder}	F02P5/152	F02P5/152		260
F02P5/1523	12	{with particular laws of return to advance, e.g. step by step, differing from the laws of retard}	F02P5/152	F02P5/152		189
F02P5/1525	12	{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 F02P5/1526)}	F02P5/152	F02P5/152		69
F02P5/1526	12	{with means for taking into account incorrect functioning of the pinking sensor or of the electrical means}	F02P5/152	F02P5/152		148
F02P5/1527	12	{with means allowing burning of two or more fuels, e.g. super or normal, premium or regular}	F02P5/152	F02P5/152		241
F02P5/1528	12	{for turbocompressed engine}	F02P5/152	F02P5/152		106
F02P5/153	11	dependent on combustion pressure	F02P5/153	F02P5/153		210
F02P5/155	10	Analogue data processing	F02P5/155	F02P5/155		374
F02P5/1551	11	{by determination of elapsed time with reference to a particular point on the motor axle, dependent on specific conditions}	F02P5/155	F02P5/155		81
F02P5/1553	11	{by determination of elapsed angle with reference to a particular point on the motor axle, dependent on specific conditions}	F02P5/155	F02P5/155		92
F02P5/1555	12	{using a continuous control, dependent on speed}	F02P5/155	F02P5/155		140
F02P5/1556	12	{using a stepped control, dependent on speed}	F02P5/155	F02P5/155		215
F02P5/1558	11	{with special measures for starting}	F02P5/155	F02P5/155		253
F02P5/16	8	characterised by the mechanical transmission between sensing elements or personal controls and final actuating elements	F02P5/16	F02P5/16		15
F02P7/00	7	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 F02P5/00; such devices per se, see the relevant classes of Section H, e.g. rotary switches H01H19/00, contact-breakers, distributors H01R39/00, generators H02K)	F02P7/00	F02P7/00		663
F02P7/02	8	of distributors	F02P7/02	F02P7/02		318
F02P7/021	9	{Mechanical distributors}	F02P7/02	F02P7/02		372
F02P7/022	10	{Details of the distributor rotor or electrode}	F02P7/02	F02P7/02		377
F02P7/023	10	{with magnetically controlled mechanical contacts}	F02P7/02	F02P7/02		18
F02P7/025	10	{with noise suppression means specially adapted for the distributor}	F02P7/02	F02P7/02		422
F02P7/026	10	{Distributors combined with other ignition devices, e.g. coils, fuel-injectors}	F02P7/02	F02P7/02		182
F02P7/027	11	{combined with centrifugal advance devices}	F02P7/02	F02P7/02		41
F02P7/028	11	{combined with circuit-makers or -breakers (and with centrifugal advance devices F02P7/027)}	F02P7/02	F02P7/02		79
F02P7/03	9	with electrical means (ignition occurring simultaneously at different places in one engine cylinder or in two or more separate engine cylinders F02P15/08)	F02P7/03	F02P7/03		275
F02P7/035	10	{without mechanical switching means}	F02P7/03	F02P7/03		371
F02P7/04	9	having distributors with air-tight casing	F02P7/04	F02P7/04		56
F02P7/06	8	of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle	F02P7/06	F02P7/06		95
F02P7/061	9	{pick-up devices without mechanical contacts (F02P7/067&#160;-&#160;F02P7/077 take precedence)}	F02P7/06	F02P7/06		162
F02P7/063	9	Mechanical pick-up devices, circuit-makers or -breakers, e.g. contact-breakers	F02P7/063	F02P7/063		82
F02P7/0631	10	{Constructional details of contacts}	F02P7/063	F02P7/063		77
F02P7/0632	10	{with rotary contacts}	F02P7/063	F02P7/063		215
F02P7/0634	10	{Details of cams or cam-followers}	F02P7/063	F02P7/063		60
F02P7/0635	10	{with means to set the breaker gap}	F02P7/063	F02P7/063		52
F02P7/0637	10	{with several circuit-makers or -breakers actuated by the same cam}	F02P7/063	F02P7/063		56
F02P7/0638	10	{with noise suppression means specially adapted for the breakers}	F02P7/063	F02P7/063		21
F02P7/067	9	Electromagnetic pick-up devices {, e.g. providing induced current in a coil}	F02P7/067	F02P7/067		399
F02P7/0672	10	{using Wiegand effect}	F02P7/067	F02P7/067		31
F02P7/0675	10	{with variable reluctance, e.g. depending on the shape of a tooth}	F02P7/067	F02P7/067		369
F02P7/0677	10	{Mechanical arrangements}	F02P7/067	F02P7/067		133
F02P7/07	10	Hall-effect pick-up devices	F02P7/07	F02P7/07		176
F02P7/073	9	Optical pick-up devices	F02P7/073	F02P7/073		220
F02P7/077	9	Circuits therefor, e.g. pulse generators	F02P7/077	F02P7/077		89
F02P7/0775	10	{Electronical verniers}	F02P7/077	F02P7/077		216
F02P7/08	9	having air-tight casings	F02P7/08	F02P7/08		17
F02P7/10	8	Drives of distributors or of circuit-makers or -breakers	F02P7/10	F02P7/10		289
F02P9/00	7	Electric spark ignition control, not otherwise provided for	F02P9/00	F02P9/00		295
F02P9/002	8	{Control of spark intensity, intensifying, lengthening, suppression (by means of current control in the storage devices F02P3/05, F02P3/09, during starting F02P15/12)}	F02P9/00	F02P9/00		917
F02P9/005	9	{by weakening or suppression of sparks to limit the engine speed}	F02P9/00	F02P9/00		488
F02P9/007	9	{by supplementary electrical discharge in the pre-ionised electrode interspace of the sparking plug, e.g. plasma jet ignition}	F02P9/00	F02P9/00		813
F02P11/00	7	Safety means for electric spark ignition, not otherwise provided for	F02P11/00	F02P11/00		286
F02P11/02	8	Preventing damage to engines or engine-driven gearing	F02P11/02	F02P11/02		438
F02P11/025	9	{Shortening the ignition when the engine is stopped (to prevent damage to the coil F02P3/0556)}	F02P11/02	F02P11/02		207
F02P11/04	8	Preventing unauthorised use of engines (of vehicles B60R25/04; ignition locks H01H27/00)	F02P11/04	F02P11/04		170
F02P11/06	8	Indicating unsafe conditions	F02P11/06	F02P11/06		258
F02P13/00	7	Sparking plugs structurally combined with other parts of internal-combustion engines ({connection of ignition coil to spark plug connector F02P3/02;} with fuel injectors F02M57/06{; spark plug connector per seH01T13/04 &#8211; H01T13/06; predominant aspects of sparking plug, seeH01T13/40 &#8211; H01T13/44})	F02P13/00	F02P13/00		1389
F02P15/00	7	Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00&#160;-&#160;F02P13/00{and combined with layout of ignition circuits (not combined F02B, F02C, F02G, F02K)}	F02P15/00	F02P15/00		313
F02P15/001	8	{Ignition installations adapted to specific engine types (ignition of jet propulsion plants F02K9/95; for rotary piston engines F02B53/12)}	F02P15/00	F02P15/00		143
F02P15/003	9	{Layout of ignition circuits for gas turbine plants (ignition of gas turbine plants per seF02C7/26)}	F02P15/00	F02P15/00		221
F02P15/005	9	{Layout of ignition circuits for rotary- or oscillating piston engines (ignition of those engines per seF02B53/12)}	F02P15/00	F02P15/00		61
F02P15/006	8	{Ignition installations combined with other systems, e.g. fuel injection (to advance or to retard the ignition spark F02P5/045)}	F02P15/00	F02P15/00		200
F02P15/008	8	{Reserve ignition systems; Redundancy of some ignition devices}	F02P15/00	F02P15/00		263
F02P15/02	8	Arrangements having two or more sparking plugs	F02P15/02	F02P15/02		462
F02P15/04	8	one of the spark electrodes being mounted on the engine working piston	F02P15/04	F02P15/04		170
F02P15/06	8	the electric spark triggered by engine working cylinder compression	F02P15/06	F02P15/06		25
F02P15/08	8	having multiple-spark ignition, i.e. ignition occurring simultaneously at different places in one engine cylinder or in two or more separate engine cylinders	F02P15/08	F02P15/08		802
F02P15/10	8	having continuous electric sparks	F02P15/10	F02P15/10		532
F02P15/12	8	having means for strengthening spark during starting	F02P15/12	F02P15/12		680
F02P17/00	7	Testing of ignition installations, e.g. in combination with adjusting (testing fuel injection apparatus F02M65/00; testing ignition installations in general F23Q23/00); Testing of ignition timing in compression-ignition engines	F02P17/00	F02P17/00		1009
F02P2017/003	8	{using an inductive sensor, e.g. trigger tongs}	F02P17/00	F02P17/00		151
F02P2017/006	8	{using a capacitive sensor}	F02P17/00	F02P17/00		161
F02P17/02	8	Checking or adjusting ignition timing	F02P17/02	F02P17/02		536
F02P17/04	9	dynamically	F02P17/04	F02P17/04		218
F02P17/06	10	using a stroboscopic lamp	F02P17/06	F02P17/06		100
F02P17/08	10	using a cathode-ray oscilloscope (F02P17/06 takes precedence)	F02P17/08	F02P17/08		91
F02P17/10	8	Measuring dwell or antidwell time	F02P17/10	F02P17/10		138
F02P17/12	8	Testing characteristics of the spark, ignition voltage or current (testing of sparking plugs H01T13/60)	F02P17/12	F02P17/12		1615
F02P2017/121	9	{by measuring spark voltage}	F02P17/12	F02P17/12		219
F02P2017/123	9	{Generating additional sparks for diagnostics}	F02P17/12	F02P17/12		69
F02P2017/125	9	{Measuring ionisation of combustion gas, e.g. by using ignition circuits}	F02P17/12	F02P17/12		555
F02P2017/126	10	{for burners}	F02P17/12	F02P17/12		18
F02P2017/128	10	{for knock detection}	F02P17/12	F02P17/12		184
F02P19/00	7	Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition	F02P19/00	F02P19/00		173
F02P19/02	8	electric, e.g. layout of circuits of apparatus having glowing plugs	F02P19/02	F02P19/02		577
F02P19/021	9	{characterised by power delivery controls}	F02P19/02	F02P19/02		210
F02P19/022	10	{using intermittent current supply}	F02P19/02	F02P19/02		162
F02P19/023	10	{Individual control of the glow plugs}	F02P19/02	F02P19/02		154
F02P19/025	9	{with means for determining glow plug temperature or glow plug resistance}	F02P19/02	F02P19/02		301
F02P19/026	9	{Glow plug actuation during engine operation}	F02P19/02	F02P19/02		175
F02P19/027	9	{Safety devices, e.g. for diagnosing the glow plugs or the related circuits}	F02P19/02	F02P19/02		199
F02P19/028	9	{the glow plug being combined with or used as a sensor}	F02P19/02	F02P19/02		238
F02P19/04	8	non-electric, e.g. heating incandescent spots by burners (use of burners for direct ignition F02P21/00)	F02P19/04	F02P19/04		17
F02P21/00	7	Direct use of flames or burners for ignition	F02P21/00	F02P21/00		33
F02P21/02	8	the flames being kept burning essentially external to engine working chambers	F02P21/02	F02P21/02		33
F02P21/04	8	Burning-cartridges or like inserts being arranged in engine working chambers (as starting aid F02N19/02)	F02P21/04	F02P21/04		2
F02P23/00	7	Other ignition	F02P23/00	F02P23/00		85
F02P23/02	8	Friction, pyrophoric, or catalytic ignition	F02P23/02	F02P23/02		42
F02P23/04	8	Other physical ignition means, e.g. using laser rays	F02P23/04	F02P23/04		934
F02P23/045	9	{using electromagnetic microwaves}	F02P23/04	F02P23/04		280
