Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1985-09-30
1986-10-07
Nelli, Raymond A.
Internal-combustion engines
Charge forming device
Fuel injection system
123612, 123618, F02P 504
Patent
active
046153187
ABSTRACT:
An ignition apparatus for an internal combustion engine includes means for generating signals indicating when the crankshaft and camshaft of the engine have respectively reached predetermined angular positions, a command circuit for initiating and terminating ignition operation in response to these position signals, and means for establishing a first operating condition, following each camshaft position pulse, in which the ignition operation is enabled and a second operating condition, following a subsequent crankshaft position pulse, in which ignition operation is inhibited, to thereby eliminate redundant ignition operation and the attendant power loss and heat generation. The apparatus also includes a timer circuit which act to enable resetting to the second operating condition by the crankshaft position pulses only during a fixed time interval following each cam shaft position pulse, in order to ensure stable operation when operating at very low engine speeds.
REFERENCES:
patent: 4353341 (1982-10-01), Henning
patent: 4414946 (1983-11-01), Daumer et al.
patent: 4519362 (1985-05-01), Arakawa et al.
patent: 4520781 (1985-06-01), Nishida
Imoto Kosuke
Katada Hiroshi
Hitachi Ltd
Honda Giken Kogyo Kabushiki Kaisha
Nelli Raymond A.
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