Fuel pump

Details Fuel pump Fuel pump

2011-01-18

2011-01-18

Look, Edward (Department: 3745)

Rotary kinetic fluid motors or pumps

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

Turbine regenerative pump

C415S055600

Reexamination Certificate

active

07871238

ABSTRACT:
A vapor lock in a fuel pump can be prevented by reducing the formation of vapor within the fuel. A first group of concavities may be formed in an inner circumferential region of an intake side face of an impeller, and a second group of concavities may be formed concentrically in a region outside of the first group of concavities. A third group of concavities that communicates with the second group of concavities may be formed in a discharge side face of the impeller. The impeller is housed within a casing. A first groove that faces the first group of concavities and a second groove that faces the second group of concavities may be formed in the face of the casing that faces the intake side face of the impeller. A third groove that faces the third group of concavities may be formed in the face of the casing that faces the discharge side face of the impeller.

REFERENCES:
patent: 4653979 (1987-03-01), Schillinger
patent: 4692092 (1987-09-01), Matsuda et al.
patent: 6152688 (2000-11-01), Staab et al.
patent: 6471466 (2002-10-01), Marx et al.
patent: 6739844 (2004-05-01), Yu et al.
patent: 6929742 (2005-08-01), Wehrum et al.
patent: 7473069 (2009-01-01), Deichmann et al.
patent: 102006016531 (2006-11-01), None
patent: 60113088 (1985-06-01), None
patent: 60219495 (1985-11-01), None

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