Title:
PISTON RING AND METHOD FOR PRODUCING THE SAME
Document Type and Number:
Japanese Patent JP2018132084
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a piston ring that has excellent gas sealability, and prevents the chipping of a hard film sufficiently, and a method of producing the same.SOLUTION: A piston ring is coated with a hard film 3. The piston ring has an abutment gap 4. At outer peripheral edges 6 of opposite faces 5 at the abutment gap, the hard film alone is chamfered.SELECTED DRAWING: Figure 2(a)
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Inventors:
HIROTA KAZUHIKO
Application Number:
JP2017024638A
Publication Date:
August 23, 2018
Filing Date:
February 14, 2017
Export Citation:
Assignee:
RIKEN KK
International Classes:
F16J9/26
Attorney, Agent or Firm:
Takaishi Tachibana
Kenji Takaishi
Kenji Takaishi