Title:
The piston ring for 2-stroke engines
Document Type and Number:
Japanese Patent JP6116548
Kind Code:
B2
Abstract:
A piston ring system, having an internal diameter >400 mm, for a piston of a two-stroke internal combustion engine, includes at least a first and a second piston ring each having a convex running surface with a crest of the convexity in contact with a cylinder wall and each being inserted into a respective first and second piston ring groove in the piston, wherein the first piston ring faces a combustion chamber and the second piston ring is disposed axially beneath the first piston ring, and wherein the crest of the convexity of the first piston ring is disposed beneath a radial plane passing through a midpoint of axial height of the first piston ring, and the crest of the second piston ring is disposed above a radial plane passing through a midpoint of axial height of the second piston ring.
Inventors:
Richard Mittler
Application Number:
JP2014509603A
Publication Date:
April 19, 2017
Filing Date:
March 14, 2012
Export Citation:
Assignee:
FEDERAL-MOGUL BURSCHEID GMBH
International Classes:
F16J9/00; F02F5/00
Domestic Patent References:
| JP200777988A |
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Hiroyasu Ninomiya
Hiroyasu Ninomiya
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