JPS62141656U

JPS62141656U -

Info

Publication number: JPS62141656U
Application number: JP2736686U
Authority: JP
Priority date: 1986-02-28
Filing date: 1986-02-28
Publication date: 1987-09-07

Description

[Brief explanation of the drawing]

第１図はエンジンの回転数に対するブローバイ
ガス量の変化を表わす線図、第２図は本考案に係
るエンジンのピストンの一半部の縦断面図、第３
図は本考案の要部の拡大断面図、第４図は第２の
ピストンリングの上面図である。１０……エンジンのピストン、１２……シリン
ダブロツク、１４……ライナ、１６Ａ，１６Ｂ，
１６Ｃ……ピストンリング、１８Ａ，１８Ｂ，１
８Ｃ……環状リング溝、２０……ピストン本体、
２２……外側リング、２２ａ……環状溝、２４…
…内側リング。 Fig. 1 is a diagram showing the change in the amount of blow-by gas with respect to the engine speed, Fig. 2 is a vertical cross-sectional view of a half part of the piston of the engine according to the present invention, and Fig. 3
The figure is an enlarged sectional view of the main part of the present invention, and FIG. 4 is a top view of the second piston ring. 10...Engine piston, 12...Cylinder block, 14...Liner, 16A, 16B,
16C... Piston ring, 18A, 18B, 1
8C...Annular ring groove, 20...Piston body,
22... Outer ring, 22a... Annular groove, 24...
...inner ring.

Claims

[Scope of utility model registration request]

In an engine piston consisting of a piston body having a plurality of annular ring grooves in multiple stages into which a plurality of piston rings that slide airtightly into a liner provided on the inner surface of a cylinder of an engine block are engaged, the second piston ring an outer ring that is urged to expand outward so as to come into pressure contact with the liner, and an annular groove provided inside the outer ring so as to be engaged with the bottom of the annular ring groove of the piston body. An engine piston comprising: an inner ring biased against the piston;