Fuel pump with noise suppression

Details Fuel pump with noise suppression Fuel pump with noise suppression

1993-12-15

1995-05-02

Bertsch, Richard A.

Pumps

With muffler acting on pump fluid

4174104, 417541, F04B 5300

Patent

active

054113768

ABSTRACT:
A gear rotor fuel pump having a gear rotor pump assembly received on a cantilever bearing in an end cap of the pump and an armature journalled for rotation at one end in the bearing while being rotatably unsupported at its other end for preventing bearing misalignment and reducing pump noise. The end cap preferably carries a bellows modulator for reducing pump noise by reducing the amplitude of fuel pressure pulses transmitted to the bellows from the pump assembly through a port in the end cap. To further reduce noise, the end cap preferably has at least one cavity for receiving compressible gas therein to further absorb the pressure pulses as well as noise generated by turbulent fuel flow at a pump inlet. Preferably, the end cap has an interior locator surface which abuts the pump assembly and a locator groove which are both preferably machined relative to the bearing axis so that the pump assembly and armature are accurately axially and radially located in the pump to reduce pump noise while increasing performance, reliability, accuracy and repeatability in the mass production of the pump.

REFERENCES:
patent: 862867 (1907-08-01), Eggleston
patent: 3801231 (1974-04-01), Nusser et al.
patent: 4500270 (1985-02-01), Tuckey
patent: 4619588 (1986-10-01), Moore, III
patent: 4642030 (1987-02-01), Friebe et al.
patent: 4645430 (1987-02-01), Carleton
patent: 5013221 (1991-05-01), Tuckey
patent: 5122039 (1992-06-01), Tuckey
patent: 5219277 (1993-06-01), Tuckey

Affiliated with

Also associated with

Rating

Fuel pump with noise suppression does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fuel pump with noise suppression, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel pump with noise suppression will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1132984