Patent · US Expired

Shaft seal

US4208058A · kind A · utility

3Cited by

2References

23Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Karl Wanner · Echterdingen, DE
Wolfgang Schmid · Regensburg, DE
Martin Holzel · Stuttgart, DE

Key dates

Filing date	Feb 27, 1978
Grant date	Jun 17, 1980
Priority date	—
Expiry date	Feb 27, 1998

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S277/916
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A shaft seal for a rotatable shaft which is surrounded by a substantially rigid structural element, has a ring-shaped body portion adapted to be supported by the structural element and having an axis and two axially spaced end faces, a radially displaceable ring-shaped inner portion located radially inwardly of the body portion, extending in an axial direction, and together with the body portion forming an axially extending gap, at least one sealing lip provided in the inner portion and subjected to radial vibrations during rotation of the shaft which vibrations are transmitted to the radially displaceable inner portion and displace the latter, and elements for damping radial vibrations of the sealing lip.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.