Fuel pump unit

Details Fuel pump unit Fuel pump unit

1997-03-13

1998-03-10

Miller, Carl S.

Internal-combustion engines

Charge forming device

With fuel pump

137113, 137565, F02M 3704

Patent

active

057249474

ABSTRACT:
In a fuel pump unit, to solve (1) the problem of a valve of a reserver opening unnecessarily due to vibrations from outside or the like and (2) the problem of it not being possible to supply to an engine remaining fuel having fallen to below a minimum intake level, a main tank valve and a reserve valve respectively close from above a main fuel inlet connecting with a fuel intake passage of the fuel pump unit and an auxiliary fuel inlet connecting with the fuel intake passage and a rocking member having a force point pivotally attached to the main tank valve and having the action of pushing up the reserve valve with an action point and thereby opening the auxiliary fuel inlet when the main tank valve closes the main fuel inlet is provided and a sub-float for descending and pushing down the reserve valve from above when excess fuel in the reserver runs out is disposed in the reserver.

REFERENCES:
patent: 4683864 (1987-08-01), Bucci
patent: 4807582 (1989-02-01), Tuckey
patent: 4971017 (1990-11-01), Beakley
patent: 4974570 (1990-12-01), Szwargulski
patent: 5050567 (1991-09-01), Suzuki
patent: 5058557 (1991-10-01), Frank
patent: 5363827 (1994-11-01), Siekmann
patent: 5415146 (1995-05-01), Tuckey
patent: 5642719 (1997-07-01), Brown

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