Patents for F02P 5 - Advancing or retarding electric ignition spark; Control therefor (9,022)
07/1977
07/26/1977US4037577 Auto ignition system
07/26/1977US4037571 Multi-cylinder internal combustion engine
07/19/1977US4036190 Device for automatic control of electronic spark ignition advance for internal combustion engines
07/12/1977US4035619 Analog computer, particularly for an ignition system for internal combustion engine
07/12/1977US4034731 Ignition system for an internal combustion engine
07/12/1977US4034726 Temperature compensated internal combustion engine ignition spark vacuum advance system
07/12/1977US4034719 Control method and apparatus for combustion motors
07/05/1977US4033305 Electronic ignition systems for an internal combustion engine
07/05/1977US4033272 Electronic ignition timing system for an internal combustion engine
06/1977
06/28/1977US4031869 Ignition-timing adjusting system for spark-ignition internal combustion engines
06/21/1977US4030467 Centrifugal adjusting mechanism for ignition interrupters of internal combustion engines
06/21/1977US4030466 Synchronous rotor indexing mechanism
06/21/1977US4030460 Ignition timing control apparatus for internal combustion engine
06/14/1977US4029998 Capacitor discharge ignition circuit
06/07/1977US4027633 Ignition timing control system
06/07/1977US4027478 Multiple-cylinder internal combustion engine
05/1977
05/31/1977US4026251 Adaptive control system for power producing machines
05/24/1977US4024845 Temperature responsive pneumatic ignition timing control device
05/17/1977US4024485 Variable inductance transducer
05/17/1977US4024483 Variable inductance transducers
05/10/1977US4022177 Controlled spark duration ignition system
05/10/1977US4022170 Circuit for generating a temperature compensated throttle advance signal having position and rate components
05/10/1977US4022169 Control system for engine ignition timing
05/03/1977US4020807 Ignition-control system for internal-combustion engine
04/1977
04/26/1977US4020455 Deceleration detector system for motor vehicles with automatic transmission
04/19/1977US4018197 Spark ignition systems for internal combustion engines
04/12/1977US4016853 Control system and improved pneumatically operated temperature controlled valve construction therefor or the like
04/12/1977US4016844 Operation control system for vehicle engine
04/12/1977US4016843 Ignition devices for automobiles
04/05/1977US4015566 Electronic ignition control system for internal combustion engines
04/05/1977US4015565 Spark-advance control apparatus for internal combustion engine
03/1977
03/29/1977US4014308 Ignition system and apparatus and method for generating timing signals therefor
03/22/1977US4013050 Ignition system for a multifueled engine
03/22/1977US4012942 Borderline spark knock detector
03/08/1977US4010721 Vacuum delay/relief valve
03/01/1977US4009699 Digital ignition spark timing angle control with read only memory
03/01/1977US4009698 Internal combustion engine of ignition timing controllable type
03/01/1977US4009697 Automatic ignition advance for an internal combustion engine
02/1977
02/22/1977US4009378 Ignition timing control system for an internal combustion engine
02/22/1977US4008697 Internal combustion engine
02/15/1977US4007588 Idling and part-load control of ignition distributor responsive to pressure upstream or downstream of throttle valve
02/01/1977US4005693 Warming-up system for internal combustion engines
02/01/1977US4005688 Ignition system for internal combustion engines
01/1977
01/18/1977US4003354 Means and method for controlling the occurrence and the duration of time intervals during which sparks are provided in a multicylinder internal combustion engine
01/11/1977US4002155 Engine and engine spark timing control with knock limiting etc.
01/04/1977US4000724 Ignition arrangements for internal combustion engines
01/04/1977US4000723 Engine valve means and porting
12/1976
12/21/1976US3998193 Spark ignition systems
12/21/1976US3998192 Ignition timing change-over device
12/14/1976US3996955 Vacuum supply valve
12/14/1976US3996911 Means and method for controlling the occurrence and the duration of time intervals during which sparks are provided in a multicylinder internal combustion engine
12/07/1976US3995608 Ignition timing control system for internal combustion engine
12/07/1976US3995607 Vacuum retard delay valve
11/1976
11/30/1976US3994269 Multistep fluid control valve
11/09/1976US3990417 Electronic ignition system
11/09/1976US3990416 Engine ignition distributor with magnetically held timing shift plate
11/02/1976US3989024 Constant energy electronic ignition system
10/1976
10/26/1976US3987770 Heat responsive pneumatic ignition timing control device
09/1976
09/28/1976US3982555 Vacuum relay valve
09/28/1976US3982553 Vacuum reducer valve assembly
09/28/1976US3982512 Device for automatically adjusting the spark timing in an electronic ignition system for an explosion engine
09/21/1976US3981282 Ignition systems and fuel injection systems for internal combustion engines
09/14/1976US3980061 Fuel injection-spark ignition system for an internal combustion engine
09/07/1976US3978833 Engine control circuit for providing a programmed control function
09/07/1976US3978832 Servo mechanism
09/07/1976US3978831 Control device for a vacuum advancer
08/1976
08/31/1976US3977373 Closed loop combustion pressure control
08/24/1976US3976043 Means and method for controlling the occurrence and the duration of time intervals during which sparks are provided in a multicylinder internal combustion engine
08/17/1976US3975609 Vacuum delay valve
08/17/1976US3974817 Breakerless ignition control system
08/17/1976US3974815 Signal source for use in a breakerless ignition system for an internal combustion engine
08/10/1976US3973533 Ignition timing adjusting device for an internal combustion engine
08/03/1976US3972310 Electronic internal combustion engine ignition spark vacuum and speed advance system
07/1976
07/27/1976US3971350 Distributor means for high speed engines
07/13/1976US3969614 Method and apparatus for engine control
07/13/1976US3968778 Electronic internal combustion engine ignition spark vacuum and speed advance system with ignition dwell time directly proportional to engine speed
07/06/1976US3967596 Engine control systems
06/1976
06/29/1976US3965874 Ignition timing control apparatus
06/22/1976US3964456 Ignition distributor
06/22/1976US3964454 Differential ignition timing firing control system
06/22/1976US3964443 Digital engine control system using DDA schedule generators
06/15/1976US3963042 Internal combustion engine control system and improved pneumatically operated temperature controlled valve construction therefor or the like
06/08/1976US3961618 Small engine ignition system with spark advance
06/01/1976US3960125 Dual vacuum actuator ignition timing
05/1976
05/25/1976US3958543 Photoelectric breakerless distributor
05/18/1976US3957023 Pressure responsive engine ignition control system
05/18/1976US3957020 Ignition system for rotary piston engines
05/11/1976US3955723 Electronic ignition spark advance system
05/04/1976US3954090 Ignition timing control devices for engines
04/1976
04/27/1976US3953716 Control apparatus and process for combustion engines
04/27/1976US3953715 Control apparatus and process for combustion engines
04/27/1976US3952715 Variable and constant timing for breakerless ignition
04/20/1976US3950981 Automatic system for suppressing the ground noise of apparatus for measuring the knocking
04/06/1976US3948239 Signal generator for use in a breakerless ignition system for an internal combustion engine
04/06/1976US3948232 Altitude compensated nonlinear vacuum spark advance control system
03/1976
03/30/1976US3946709 Tachometric and angular programming system for rotary device
03/30/1976US3946708 Device for adjusting ignition time for internal combustion engine
03/23/1976US3945350 Fuel injection systems for internal combustion engines
03/16/1976US3943898 Electronic timing circuit for engine ignition
03/16/1976US3943896 Electronic control of spark advance and dwell
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