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Title:
RECIPROCATION PISTON ENGINE
Document Type and Number:
Japanese Patent JP2018145885
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a reciprocation piston engine capable of reducing a mechanical loss as less as possible.SOLUTION: Lubricating oil is filled between a first sliding face 2A and a second sliding face 31S, and a projection-shaped part 31S projecting toward the first sliding face 2A is provided to the second sliding face 31S on a cross section in a sliding direction of the second sliding face 31S. A peak part Ps that projects the most, and a skirt part Qs arranged at a downstream side of the peak part in the sliding direction of at least the second sliding face 31S and positioned the most away from the first sliding face 2A are provided at the projection-shaped part 31S. When a gap between the first sliding face 2A and the second sliding face 31S at the peak part Ps is designated as a minimum gap h1 and a gap at the skirt part Qs is designated as a maximum gap h2, a range of h1=15 μm to 40 μm and h2/h1=1.5 to 5.0 is set.SELECTED DRAWING: Figure 6

Inventors:
足立 崇勝
Application Number:
JP2017041849A
Publication Date:
September 20, 2018
Filing Date:
March 06, 2017
Export Citation:
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Assignee:
マツダ株式会社
International Classes:
F02F3/00; F01M1/06; F02F1/20; F16C3/06; F16C7/02; F16C9/02; F16C17/02
Domestic Patent References:
JP2011236923A2011-11-24
JPH10175131A1998-06-30
JP2010071221A2010-04-02
JPH07252506A1995-10-03
Attorney, Agent or Firm:
小谷 悦司
小谷 昌崇
平田 晴洋