Browse Prior Art Database

Egun Water Seal with Rotational Restraint

IP.com Disclosure Number: IPCOM000107915D
Original Publication Date: 1992-Mar-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 1 page(s) / 31K

Publishing Venue

IBM

Related People

Deans, D: AUTHOR

Abstract

The development of this design was necessary due to continual failures caused by "crushing" of the seal during rotation and maintenance activity, coupled with seal material failure.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Egun Water Seal with Rotational Restraint

      The development of this design was necessary due to continual
failures caused by "crushing" of the seal during rotation and
maintenance activity, coupled with seal material failure.

      The seal design features a Teflon jacket supported internally
by a stainless steel spring.

      The spring serves two purposes in this application. The first
is material compatible with the fluid environment (DI H2O) and the
second, a spring constant adequate to assure the sealing surface
contact to the shaft is maintained.

      The seal material of Teflon assured compability with the
corrosive effects of DI H2O.

      The shaft restraint feature protected the seal from the
inherent rotational mis-alignment due to manufacturing tolerances and
from being "crushed" during regular maintenance activity (it was
determined that the diametral clearance between the rotating shaft
and the seal housing was excessive which contributed to the
mis-alignment concerns for crushing the seal).

      Disclosed anonymously.