Resonator device for a high-pressure fuel pump

Details Resonator device for a high-pressure fuel pump Resonator device for a high-pressure fuel pump

1997-11-12

1999-10-26

Freay, Charles G.

Pumps

Expansible chamber type

Having pulsation dampening fluid receiving space

417312, 12318457, F04B 1100

Patent

active

059717289

ABSTRACT:
A resonator device for a high-pressure fuel pump, comprising a casing having a fuel passage formed therein, a cover arranged to the casing, and a cap attached between the casing and the cover, the cap providing a fuel passage chamber together with the fuel passage formed in the casing and a volume chamber together with the cover, the cap having an orifice formed therein to communicate between the volume chamber and the fuel passage chamber, wherein the cap has an outer diameter on a side of the fuel passage chamber set smaller than an outer diameter on a side of the volume chamber.

REFERENCES:
patent: 4444013 (1984-04-01), Inoue et al.
patent: 4539947 (1985-09-01), Sawada et al.
patent: 5040495 (1991-08-01), Harada et al.
patent: 5572966 (1996-11-01), Doddy et al.

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