Internal-combustion engines – Combustion chamber means having fuel injection only – Using multiple injectors or injections
Patent
1984-08-24
1986-05-27
Miller, Carl Stuart
Internal-combustion engines
Combustion chamber means having fuel injection only
Using multiple injectors or injections
123447, 123575, 2395335, F02M 3900
Patent
active
045909032
ABSTRACT:
A fuel injection apparatus for definite pilot and main injection in internal combustion engines. A hydraulic auxiliary pump is supplied via a pressure line with fuel from a high-pressure injection pump, which fuel reaches a main injection nozzle and simultaneously drives the hydraulic auxiliary pump. The hydraulic auxiliary pump contains a differential piston comprising a reservoir piston and a pilot injection piston with different diameters and with a spring prestressing such that between the end of supply of the pilot injection and the onset of supply of the main injection, an injection-free spacing stroke (DH) which can be predetermined by means of mechanical stops results, during which spacing stroke (DH) the reservoir piston by retracting further, receives the supply quantity which is pumped during the injection interval by the high-pressure injection pump.
REFERENCES:
patent: 2173814 (1939-09-01), Bischof
patent: 3394891 (1968-07-01), Voit
patent: 3403861 (1968-10-01), Eidtmann
patent: 4289098 (1981-09-01), Norberg
patent: 4356976 (1982-11-01), Eblen
patent: 4389987 (1983-06-01), Frankle
Hofmann Eberhard
Pfeifle Helmut
Schwartz Reinhard
Tschoeke Helmut
Greigg Edwin E.
Miller Carl Stuart
Robert & Bosch GmbH
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