Fuel pump assembly having reduced vapor discharge noise

Details Fuel pump assembly having reduced vapor discharge noise Fuel pump assembly having reduced vapor discharge noise

1996-06-19

1997-09-02

Moulis, Thomas N.

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

Turbine regenerative pump

4151691, F04D 900

Patent

active

056624557

ABSTRACT:
A fuel pump assembly having a vapor by-pass port communicating a pump chamber with the interior of a fuel tank, which comprises a vapor introducing passage for introducing the vapor-mixed fuel discharged through the vapor by-pass port, a vapor discharge port communicating with the midway of the vapor introducing passage and opening to the interior of the fuel tank, and a bag-like closed space formed on a rear half portion of the vapor introducing passage. The vapor discharge noise is effectively reduced with the construction.

REFERENCES:
patent: 5284417 (1994-02-01), Yu
patent: 5330319 (1994-07-01), Yu et al.
patent: 5338151 (1994-08-01), Kemmner et al.
patent: 5391062 (1995-02-01), Yoshioka

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