JPH0280747U

JPH0280747U -

Info

Publication number: JPH0280747U
Application number: JP15935688U
Authority: JP
Priority date: 1988-12-09
Filing date: 1988-12-09
Publication date: 1990-06-21
Anticipated expiration: 2003-12-09
Also published as: JP2522911Y2

Description

[Brief explanation of the drawing]

第１図は本考案の実施例によるピストン本体の
反スラスト側より見た正面図、第２図は第１図の
背面図、第３図は第１図の側面図、第４図は第３
図の−断面図、第５図は従来例のピストン本
体の側面図、第６図は第５図の−断面図、第
７図は他の従来例のピストン本体の側面図、第８
図は第７図の底面図を示す。１……反スラスト側摺動面、２……スラスト側
摺動面、３……スカート段差部、６……上方摺動
部、７……下方摺動部、１０……ピストン本体。 FIG. 1 is a front view of the piston body according to an embodiment of the present invention as seen from the anti-thrust side, FIG. 2 is a rear view of FIG. 1, FIG. 3 is a side view of FIG. 1, and FIG.
5 is a side view of the piston body of the conventional example, FIG. 6 is a sectional view of FIG. 5, FIG. 7 is a side view of the piston body of another conventional example, and FIG.
The figure shows a bottom view of FIG. 1... Anti-thrust side sliding surface, 2... Thrust side sliding surface, 3... Skirt step, 6... Upper sliding part, 7... Lower sliding part, 10... Piston body.

Claims

[Scope of Claim for Utility Model Registration] In a piston equipped with an asymmetrical skirt in which the area of the skirt sliding surface on the anti-thrust side of the piston is smaller than the area of the skirt sliding surface on the thrust side, the skirt on the anti-thrust side A sliding part that can directly contact the cylinder bore and a non-sliding part that does not come into contact with the cylinder bore are provided, and the surface of the sliding part is shaped like a square protruding toward the piston pin boss at the upper part and the lower part of the skirt, A piston for an internal combustion engine, characterized in that the non-sliding portion is formed to have a stepped surface that is lower toward the inner side of the piston than the surface of the sliding portion.