Valve shaft seal
US6877719B2 · kind B2 · utility
8Cited by
4References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 18, 2002 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Mar 22, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L3/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A valve shaft seal includes a reinforcing ring having a cylindrical section extending over a certain axial length and possessing an outer diameter, a sealing element disposed on the reinforcing ring, and a valve spring supported on a radially extending end section of the reinforcing ring. To support the valve spring on the radially extending end section of the reinforcing ring, the radially extending end section extends radially farther inward in the direction of the axis of the valve shaft seal than the outer diameter of the cylindrical section of the reinforcing ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.