Rotary turbine fluid pump

Details Rotary turbine fluid pump Rotary turbine fluid pump

1988-08-11

1990-04-10

Powell, Jr., Everette A.

Rotary kinetic fluid motors or pumps

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

Turbine regenerative pump

415106, F01D 300

Patent

active

049155822

ABSTRACT:
A rotary turbine fluid pump employs unique configurations of turbine vane receptacle opening and turbine vanes. The turbine vane receptacle is connected to a circumferentially extending fluid path, in which free ends of turbine vanes are inserted for pressurization of the fluid therein. The turbine vane receptacle operation has pair of surfaces opposing and spaced apart to each other. Each surface is radially tapered toward the center at a first inclination rate. Each turbine vane is provided edges opposing the surfaces of the turbine vane receptacle operation. The edges are correspondingly tapered at a second rate which is determined so that the spacing between the surface and the edge is gradually increased toward the rotation center of the turbine. This construction minimizes friction increasing when the pressure balance in floating seal formed between the surface and the edge is destroyed.

REFERENCES:
patent: 4465436 (1984-08-01), Schonwald
patent: 4586877 (1986-05-01), Watanabe et al.
patent: 4676722 (1987-06-01), Marchal et al.

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