Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1983-01-03
1985-06-25
Dolinar, Andrew M.
Internal-combustion engines
Charge forming device
Fuel injection system
123267, 123275, 123337, 123401, 123456, 123514, F02M 6302
Patent
active
045247447
ABSTRACT:
A fuel injection apparatus in which a closed fuel circuit is pressurized, and the amount of fuel injected is determined by the pressure in the circuit. Air intake by the engine is controlled in response to the amount of fuel injected. The fuel injection apparatus includes a reservoir with a fixed level of fuel, and a high pressure pump pumps fuel from the reservoir and into the fuel circuit. Fixed orifice injection nozzles communicate with the circuit so fuel is varied only by the pressure. Pressure in the circuit is varied by a valve that releases fuel into the reservoir to lower the pressure in the circuit, the valve being controlled by the conventional accelerator pedal. Air to the engine is modulated in response to fuel flow. This is accomplished by varying an air valve in accordance with pressure in the fuel circuit, or by using a constant velocity valve which would vary with engine demand.
The apparatus further includes an auxiliary chamber receivable in the spark plug hole to convert the engine to a stratified charge engine. The fuel is injected into the auxiliary chamber, and passes from the auxiliary chamber into the cylinder so the cylinder receives a lean mixture. The auxiliary chamber includes a spark plug to ignite the rich mixture, and the chamber acts as a torch to ignite the lean mixture in the cylinder.
REFERENCES:
patent: 2813522 (1957-11-01), White et al.
patent: 3102521 (1963-09-01), Slemmons
patent: 3105478 (1963-10-01), Lyon
patent: 3650258 (1972-03-01), Jackson
patent: 3824965 (1974-07-01), Clawson
patent: 3995604 (1976-12-01), Brandstetter
patent: 4074664 (1978-02-01), Rollins
Dolinar Andrew M.
Middleton James B.
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