Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1985-12-24
1988-11-15
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
Fuel injection system
173446, 173467, 173498, F02M 3900
Patent
active
047841028
ABSTRACT:
A fuel injection system in which a fuel injector having a fuel pressure control chamber formed therein to create a pressure which forces a needle valve in the closing direction to open and close the nozzle hole, an accumulator to retain fuel discharged from the nozzle hole, and a fuel injector provided at each of the cylinders of the engine, are connected to the fuel injection pump by a single piping system without utilizing a special distribution mechanism. The volume of the fuel pressure control chamber in the fuel injector can be changed by a piezo-actuator. A check valve is provided at a half way point of the piping which leads the fuel fed under pressure from the fuel injection pump to the fuel injector into the fuel pressure control chamber and the accumulator, so that the fuel is fed through the check valve into the fuel pressure control chamber and the accumulator.
REFERENCES:
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patent: 4572136 (1986-02-01), Takeuchi
patent: 4610427 (1986-09-01), Igashira et al.
Akagi et al, "A New Accumulator Fuel Injection System for Direct Injection Diesel Engines", from Diesel Combustion and Emissions Research Report SP525 SAE, Sep. 1982, pp. 61-69.
Daido Shigeki
Igashira Toshihiko
Natsuyama Yukihiro
Sakakibara Yasuyuki
Takigawa Masahiro
Miller Carl Stuart
Nippon Soken Inc.
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