Title:
ピストンリング及びピストン
Document Type and Number:
Japanese Patent JP6836945
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce mechanical loss and suppress deterioration in gas seal function by reducing frictional resistance, in a piston ring and a piston.SOLUTION: In a piston ring provided at an outer peripheral surface of a piston 13 of an engine, a plurality of axial grooves 33 along an axial direction of the piston 13 toward a side of a maximum outer diameter part 34 from an apex side of the piston 13 are provided at an outer peripheral surface of a body 32 shaped into a ring while being spaced by a prescribed interval in a circumferential direction.SELECTED DRAWING: Figure 3
Inventors:
Hideo Nishida
Masashi Sasaki
Masashi Sasaki
Application Number:
JP2017063744A
Publication Date:
March 03, 2021
Filing Date:
March 28, 2017
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F16J9/20
Domestic Patent References:
| JP59028050A | ||||
| JP2010236649A |
Attorney, Agent or Firm:
Sakai International Patent Office