Fuel-feeding devices

Details Fuel-feeding devices Fuel-feeding devices

2008-12-04

2010-06-22

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

With fuel pump

C123S457000

Reexamination Certificate

active

07740006

ABSTRACT:
A fuel-feeding device may preferably include a pressure control valve capable of controlling a pressure of pressurized fuel that includes a housing having an inner cavity, a first movable dividing wall, a second movable dividing wall, a valve unit and a resilient member. The first and second movable dividing walls divide the housing cavity to a pressure controlling chamber, a back pressure chamber, and an open chamber positioned between the pressure controlling chamber and the back pressure chamber. The second movable dividing wall is arranged and constructed to move to a retracted position or an advanced position depending upon whether back pressure fuel is introduced into the back pressure chamber, thereby setting the resilient member to two different set loads.

REFERENCES:
patent: 5031596 (1991-07-01), Muraji
patent: 2008/0095642 (2008-04-01), Schelhas et al.
patent: 2002235622 (2002-08-01), None

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