Internal-combustion engines – Starting device – With fuel or intake air control
Patent
1994-09-08
1997-02-04
Miller, Carl S.
Internal-combustion engines
Starting device
With fuel or intake air control
123456, 123516, F02N 1700, F02M 4100
Patent
active
055988172
ABSTRACT:
A fuel feeding system is provided for an internal combustion engine to permit appropriate feeding of fuel in accordance with the state of operation of the engine. A fuel line is arranged as a recirculation circuit between a fuel injector and a fuel tank. A low-pressure fuel pump is arranged in an upstream part of the fuel line. A high-pressure fuel pump is arranged between the fuel pump and the injector. A high-pressure regulator is arranged in a fuel line portion on a downstream side of the regulator to control the pressure of fuel delivered from the pump. A bypass line connects another fuel line portion on an upstream side of the regulator and the fuel line portion each other. A switching valve is arranged in the bypass line to open or close the same. A low-pressure regulator controls the pressure of fuel in the fuel line portion at a pressure lower than a control pressure set by the regulator while the switching valve is open. ECU is arranged to perform open/close control of the switching valve so that the switching valve is closed in an ordinary operation state of the engine but is opened in a specific operation state of the engine.
REFERENCES:
patent: 3614945 (1971-10-01), Schlagmuller
patent: 4329951 (1982-05-01), Seilly
patent: 4403580 (1983-09-01), Bader
patent: 4984554 (1991-01-01), Ariga
patent: 5284120 (1994-02-01), Fukoshima
patent: 5373829 (1994-12-01), Schuers
patent: 5425342 (1995-06-01), Ariga
Patent Abstracts of Japan, vol. 12, No. 105 (M-681) Apr. 6, 1988 & JP-A-62 237 057 (Toyota Motor Corp.) Oct. 17, 1987--Abstract.
Patent Abstracts of Japan, vol. 17, No. 544 (M-1489) Sep. 30, 1993 & JP-A-05 149 168 (Fuji Heavy Ind. Ltd.) Jun. 15, 1993--Abstract.
Patent Abstracts of Japan, vol. 17, No. 517 (M-1481) Sep. 17, 1993 & JP-A-05 133 295 (Suzuki Motor Corp.) May 28, 1993--Abstract.
Igarashi Kyoya
Kume Tateo
Murakami Nobuaki
Oda Hideyuki
Yoshida Masato
Miller Carl S.
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
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