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Title:
RECIPROCATION PISTON ENGINE AND VEHICLE WITH THE SAME
Document Type and Number:
Japanese Patent JP2018145888
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: A projection-shaped part 31S projecting toward a first sliding face 2A is provided on a second sliding face 31S. When a gap between the first sliding face 2A and the second sliding face 31S at a peak part Ps that is a portion of the projection-shaped part 31S projecting the most is designated as a minimum gap h1 and a gap at the skirt part Qs that is positioned the most away from the first sliding face 2A is designated as a maximum gap h2, a range of h1=0.5 μm to 40 μm and h2/h1=1.5 to 5.0 is set. Lubricating liquid is supplied between the sliding faces in a region where an engine rotation number and an engine load are high, and air is interposed between the sliding faces in the other second region A2.SELECTED DRAWING: Figure 6

Inventors:
足立 崇勝
荒木 啓二
Application Number:
JP2017041852A
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:
F01M1/16; F01M1/06; F01M1/08; F02F1/20; F02F3/00; F16C9/02; F16C9/04; F16C17/02; F16C33/10; F16C33/12
Domestic Patent References:
JP2003269163A2003-09-25
JP2008038705A2008-02-21
JP2016514806A2016-05-23
JP2016121597A2016-07-07
JP2008232172A2008-10-02
JP2009030521A2009-02-12
JP2011080436A2011-04-21
JPH05149198A1993-06-15
JPH11153061A1999-06-08
JPS6258049A1987-03-13
JP2016211415A2016-12-15
JP2015183528A2015-10-22
Foreign References:
WO2013093986A12013-06-27
Attorney, Agent or Firm:
小谷 悦司
小谷 昌崇
平田 晴洋