Fuel pump for an internal combustion engine

Details Fuel pump for an internal combustion engine Fuel pump for an internal combustion engine

2006-05-19

2009-08-18

Freay, Charles G (Department: 3746)

Pumps

With condition responsive pumped fluid control

Expansible chamber pump distributor operation modified

C417S385000, C137S512150, C137S859000

Reexamination Certificate

active

07575419

ABSTRACT:
A fuel pump for an internal-combustion engine; the fuel pump is provided with: a variable-volume chamber for containing fuel; an intake valve connected to the variable-volume chamber; a delivery valve connected to the variable-volume chamber; and a pumping device for varying the volume of the first variable-volume chamber. The intake valve has a disk provided with a plurality of through supply holes, and a deformable lamina, which is fixed to the disk in a position corresponding to a peripheral edge thereof and is provided with a series of flaps, each of which is coupled to a respective supply hole.

REFERENCES:
patent: 2191458 (1940-02-01), Duden
patent: 2578746 (1951-12-01), Scherger et al.
patent: 5520523 (1996-05-01), Yorita et al.
patent: 6223724 (2001-05-01), Miyaji et al.
patent: 7004734 (2006-02-01), Izawa et al.
patent: 2002/0176786 (2002-11-01), Hirose et al.
patent: 2003/0091445 (2003-05-01), Bastia et al.
patent: 2004/0094128 (2004-05-01), Ranaldo et al.
Office Action in EP 05425349.7 dated Feb. 6, 2007.

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