Bi-directional hydrodynamic shaft seal method

Details Bi-directional hydrodynamic shaft seal method Bi-directional hydrodynamic shaft seal method

1974-12-02

1978-10-10

Lowe, James B.

Metal working

Method of mechanical manufacture

Assembling or joining

264295, 264320, 277134, B21D 3906, B29C 1702, F16J 1554

Patent

active

041188560

ABSTRACT:
A method for producing a bi-directional hydrodynamic sealing element for a shaft seal wherein the sealing element is made from a non-elastomeric material such as polytetrafluoroethylene, and has a sealing lip and a plurality of bi-directional pumping elements on a shaft engaging surface thereof, formed as a series of non-concentric circles or other geometric figures on the non-elastomeric sealing element while it is flat. The centers of the non-concentric circles are located on the periphery of a circle concentric with the sealing lip. The flat sealing element is then formed into a conical lip type sealing element and the circular pumping elements become elliptically shaped, bi-directonal helical pumping elements.

REFERENCES:
patent: 2797179 (1957-06-01), Reynolds
patent: 2959819 (1960-11-01), Potter
patent: 3387850 (1968-06-01), Mastrobattista et al.
patent: 3620540 (1971-11-01), Jagger et al.
patent: 3620540 (1971-11-01), Jagger
patent: 3857156 (1974-12-01), Clark
The Journal of Teflon-Radial Lip Seals-pp. 2-4, Jan.-Feb., 19790, vol. 11, No. 1.

Affiliated with

Also associated with

Rating

Bi-directional hydrodynamic shaft seal method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bi-directional hydrodynamic shaft seal method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bi-directional hydrodynamic shaft seal method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1761108