Patent · US Active

Compression piston ring with profiled section

US10495225B2 · kind B2 · utility

1Cited by

5References

10Claims

0Family size

Assignee

Federal-Mogul Burscheid GmbH · DE

Inventors

Richard Mittler · Burscheid, DE
Peter Esser · Kürten, DE

Key dates

Filing date	Jun 2, 2016
Grant date	Dec 3, 2019
Priority date	—
Expiry date	Jun 22, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16J9/20
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A compression piston ring 2 having a running-surface region 4, an upper flank 6, a lower flank 8 and also an inner circumferential surface 10, wherein the running-surface region 4 is provided with a profiled section, which, as viewed over the axial height of the running-surface region 4, comprises mutually spaced, convexly spherically constructed sections 12, 14 having an upper and lower apex So; Su, wherein a groove 16 with a depth Tn is arranged between the apexes So, Su, wherein both apexes So; Su are arranged below a centre M of the piston ring 2 in the axial direction.

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