Pump impeller seals with spiral grooves

Details Pump impeller seals with spiral grooves Pump impeller seals with spiral grooves

1978-11-15

1980-12-30

Powell, Jr., Everette A.

Rotary kinetic fluid motors or pumps

With lubricating, sealing, packing or bearing means having...

For shaft sealing, packing, lubricating or bearing means

415140, 415169A, 415170B, F04D 2916

Patent

active

042420393

ABSTRACT:
The present invention relates to internal and shaft outlet seals of a pump. On both sides of a paddle-wheel are arranged a pair of coaxial discs (22-23) and (24-25), the face of one disc being smooth and the face of the other disc having spiral grooves, one of the discs of each pair being interlocked in rotation with wheel 5, whereby the liquid between two discs is subjected to a pressure increase radially outwardly compensating at least for the pressure increase due to pumping by wheel 5.

REFERENCES:
patent: 3137237 (1964-06-01), Zagar et al.
patent: 3467449 (1969-09-01), Muijderman
patent: 3535051 (1970-10-01), Turner
patent: 3578874 (1971-05-01), Sproule

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