Westco-type fuel pump having improved impeller

Details Westco-type fuel pump having improved impeller Westco-type fuel pump having improved impeller

1995-09-08

1997-03-04

Look, Edward K.

Rotary kinetic fluid motors or pumps

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

Turbine regenerative pump

F04D 500

Patent

active

056072830

ABSTRACT:
A disk-shaped impeller having on its periphery a multiple radial vanes and a multiple radial impeller grooves is rotatably disposed in a pump housing. On each end surfaces of the impeller there are formed a plurality of C-shaped grooves. As the impeller is rotated at a higher speed, the fluid in the C-shaped grooves in the impeller acquires a velocity component in an impeller's axial direction to generate a force sufficient to push a pump cover and a pump casing in the axial direction. Accordingly, since it is avoided for the impeller to adhere either the pump cover or the pump casing, the space between the impeller and the housing inner wall is reduced while the possible leakage of the fluid is reduced.

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