Fuel supply apparatus for internal combustion engine

Details Fuel supply apparatus for internal combustion engine Fuel supply apparatus for internal combustion engine

1991-09-16

1993-05-18

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Fuel injection system

123478, 123585, F02D 4134

Patent

active

052111504

ABSTRACT:
The fuel supply apparatus for a multiple-cylinder internal combustion engine is comprised of a fuel supply means through which a fuel amount is injected into each combustion chamber of the engine. The fuel amount is corrected by fuel supply amount correcting means in a controller of the fuel supply apparatus, in accordance with intake port pressure near the fuel supply means to maintain a proper fuel injection even in various intake pressure conditions. The intake port pressure is estimated by intake port pressure estimating mean in the controller to search a data map in the intake port pressure estimating means, in accordance with an engine speed, an opening degree of the throttle valve, and an crankangle at the fuel injection start time.

REFERENCES:
patent: 4688533 (1987-08-01), Otobe
patent: 4791569 (1988-12-01), Suzuki
patent: 4886030 (1989-12-01), Oba et al.
Toyota Engine 4V-EU E-VG System Troubleshooting Manual (1978) pp. 1-16.

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