Fuel pump with passage for attenuating noise generated by impell

Details Fuel pump with passage for attenuating noise generated by impell Fuel pump with passage for attenuating noise generated by impell

1988-08-10

1989-07-04

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

With sound or vibratory wave absorbing or preventing means...

415 555, 4151691, 415 1, F04D 2966

Patent

active

048446211

ABSTRACT:
A fuel pump of regenerative type mounted in a fuel tank. The fuel pump has a pump housing defining a pump chamber, an impeller rotatably mounted in the pump housing and provided with a multiplicity of blades formed thereon, and a driving device for driving the impeller. The fuel pump further has a vapor relief port for relieving, from the pump chamber into the space in the fuel tank, vapor of fuel generated as a result of rotation of the impellar, and a vapor relief extension passage connected to the vapor relief port and opening at least one end in the space in the fuel tank.

REFERENCES:
patent: 3881839 (1975-05-01), MacManus
patent: 3947149 (1976-03-01), MacManus
patent: 4466781 (1984-08-01), Kemmner et al.
patent: 4508492 (1985-04-01), Kusakawa et al.
patent: 4538958 (1985-09-01), Takei et al.
patent: 4586877 (1986-05-01), Watanabe et al.
patent: 4591311 (1986-05-01), Matsuda et al.

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