Multistage fuel injection system for internal combustion engines

Details Multistage fuel injection system for internal combustion engines Multistage fuel injection system for internal combustion engines

1985-10-03

1987-09-08

Dolinar, Andrew M.

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

123304, 123447, 2395334, F02M 4300

Patent

active

046916741

ABSTRACT:
A multistage fuel injection system for an internal combustion engine has an injection nozzle capable of injecting main and auxiliary fuels into a cylinder of the engine at controlled intervals, thereby completely combusting an unburned fuel-and-air mixture in the cylinder. The injection nozzle includes a main injection passage for the main fuel, a needle valve for opening and closing the main injection passage, an auxiliary injection passage for the auxiliary fuel communicating with the main injection passage through the needle valve at a discharge end of the latter, and a check valve for preventing a reverse flow of the main fuel from the main injection passage to the auxiliary injection passage.

REFERENCES:
patent: 4022165 (1977-05-01), Eckert et al.
patent: 4459959 (1984-07-01), Terada et al.
patent: 4481921 (1984-11-01), Tsukahara et al.

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