FUEL SUPPLY SYSTEM

WIPO Patent Application WO/2004/067947

A1

A fuel supply system in an apparatus having a fuel pump in the middle of a fuel supply piping, the system being capable of discharging vapor to a fuel tank without having a passage other than the fuel supply piping. A fuel tank (10) is positioned higher than an injector (12), a solenoid-type plunger pump (16) and a return less-type regulator (18) are arranged, in that order, in the middle of a fuel supply piping (14) lead from the fuel tank (10) to the injector (12), and a fuel inflow opening (27) of the solenoid-type plunger pump (16) is provided at the highest position of the pump. Using the return less-type regulator (18) eliminates a fuel return passage conventionally required. Further, returning vapor produced at the solenoid-type plunger pump (16) through the fuel supply piping (14) eliminates a vapor discharge passage conventionally required. Since the fuel supply system does not require such a fuel return passage and vapor discharge passage, the system can be used for a two-wheeled motor vehicle where mounting space is limited.

SATO KIYOSHI (JP)
MAITA KATSUYA (JP)
TERUI TAKUYA (JP)

PCT/JP2003/016768

August 12, 2004

December 25, 2003

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MIKUNI KOGYO KK (JP)
SATO KIYOSHI (JP)
MAITA KATSUYA (JP)
TERUI TAKUYA (JP)

F02M37/06; F02M37/00; F02M37/08; F02M37/20; F02M37/32; F02M55/02; F02M69/02; F02M69/46; F02M69/54; F02M59/10; (IPC1-7): F02M37/08; F02M37/20; F02M37/22; F02M39/00

JP2002168155A	2002-06-14
JP2001221137A	2001-08-17
JPH0347457U	1991-05-02
JPH07293385A	1995-11-07

Yashima, Keiichi (Hosokawa Building 1-17, Akasaka 1-chom, Minato-ku Tokyo, JP)

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