Patent · US Expired

Sealing ring for a contact pin

US5597166A · kind A · utility

6Cited by
15References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 17, 1993
Grant dateJan 28, 1997
Priority date
Expiry dateNov 17, 2013

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S277/905
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

The invention provides sealing ring formed by a ring inner part and a bulge, the bulge extending radially outward at a right angle to a longitudinal axis of the ring so that a T-shaped cross section of the sealing ring is produced. The slightly conically extending inner surfaces of the sealing ring are pressed radially outward upon assembly so that a long guide area of the sealing ring on the contact pin is created which completely precludes any tilting of the sealing ring and increases the axial sealing. The sealing ring is particularly suitable for use in electromagnetically actuatable fuel injection valves.

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