Unitized seal impeller thrust system

Details Unitized seal impeller thrust system Unitized seal impeller thrust system

1998-06-05

2000-05-16

Look, Edward K.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between shaft or shaft sleeve and...

Seal

415111, 415113, 4151701, 4151743, 415230, 277367, 277361, F04D 2910, F04D 2908, F16J 1500

Patent

active

060628154

ABSTRACT:
A unitized seal impeller thrust system includes an impeller unit which includes a tubular neck portion that has flat surfaces on opposite sides of one another. The impeller unit includes a plurality of radially extending blades and a circular trough surrounding the neck portion. The system further includes a seal head assembly which is secured within the trough, and a seal seat assembly which engages the seal head assembly. The system further includes a thrust washer which engages the seal seat assembly and the retainer ring which is secured to the tubular neck portion at an end of the neck portion. The retainer ring also engages the thrust washer in a ball and socket type arrangement. The system provides a unitized seal, impeller, thrust system that is capable of preload testing and/or leak testing before assembly of the pump unit.

REFERENCES:
patent: 3904211 (1975-09-01), Dega
patent: 4380416 (1983-04-01), Menager
patent: 4451049 (1984-05-01), Charhut
patent: 4557672 (1985-12-01), Levine
patent: 4754981 (1988-07-01), Burns
patent: 4768923 (1988-09-01), Baker
patent: 5209499 (1993-05-01), Ruff, Jr. et al.
patent: 5421592 (1995-06-01), Petrak
patent: 5558491 (1996-09-01), Andrews

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