Fuel supply apparatus

Details Fuel supply apparatus Fuel supply apparatus

2007-08-23

2008-10-28

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

With fuel pump

C123S469000

Reexamination Certificate

active

07441548

ABSTRACT:
A fuel supply apparatus particularly for the outboard motor is capable of decreasing the need to change the layout, etc., according to the specification of an engine to reduce the cost of production by preventing vapor from being discharged into an intake pipe. A low pressure fuel pump has its discharge flow rate adjusted to be greater than that of a high pressure fuel pump, and surplus fuel accumulating in a volumetric chamber is caused to circulate through the volumetric chamber, a first return passage, fuel piping, and an inflow passage under the action of the low pressure fuel pump, a check valve and a relief valve, whereby fuel remaining in the volumetric chamber is prevented from being locally warmed.

REFERENCES:
patent: 5740784 (1998-04-01), McKinney
patent: 5913294 (1999-06-01), Takahashi et al.
patent: 6622708 (2003-09-01), Braun et al.
patent: 6698401 (2004-03-01), Suzuki et al.
patent: 6918380 (2005-07-01), Nomura
patent: 2002/0083923 (2002-07-01), Suzuki et al.
patent: 2002/0100457 (2002-08-01), Sakai
patent: 2004/0003796 (2004-01-01), Nomura
patent: 8-312485 (1996-11-01), None
patent: 2002-227735 (2002-08-01), None

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