Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Patent
1987-12-10
1988-09-06
Nelli, Raymond A.
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
123198DB, 123198DC, F02B 7700
Patent
active
047684801
ABSTRACT:
A motor vehicle engine includes an operator controlled fuel injection enabling switch effective to disconnect electric fuel injection apparatus from an electric power source and thus initiate the cessation of engine operation when deactivated. However, the spark ignition system is still powered through an oil pressure switch so as to continue engine operation for a few extra crankshaft rotations to reduce the unburned fuel in the intake passage as the engine stops and thus reduce throttle bore coking. In a vehicle having a fuel pump relay activated by the fuel injection enabling switch with contacts connected across the oil pressure switch, the invention may be obtained by changing the power connection of the spark ignition system from the fuel injection enabling (ignition) switch to the fuel pump relay.
REFERENCES:
patent: 3241539 (1966-03-01), Kuehn, III
patent: 3482562 (1969-12-01), Ranft
patent: 3741188 (1973-06-01), Rickey
patent: 3867919 (1975-02-01), Grenier et al.
patent: 4312310 (1982-01-01), Chivilo et al.
patent: 4470397 (1984-09-01), Brotharson
patent: 4656973 (1987-04-01), Endres
Grenn Daniel P.
Wallo Gary J.
General Motors Corporation
Nelli Raymond A.
Sigler Robert M.
LandOfFree
Engine with spark ignition operation through the oil pressure sw does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Engine with spark ignition operation through the oil pressure sw, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine with spark ignition operation through the oil pressure sw will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1600855