JPH0464657U

JPH0464657U -

Info

Publication number: JPH0464657U
Application number: JP10792490U
Authority: JP
Priority date: 1990-10-17
Filing date: 1990-10-17
Publication date: 1992-06-03

Description

[Brief explanation of drawings]

第１図は本考案に係る第１実施例を示す部分正
面図、第２図は第２実施例を示す部分正面図、第
３図は同上第２実施例の部分斜視図、第４図は第
３実施例を示す部分正面図、第５図は従来のオイ
ルリングを示す平面図、第６図は従来のオイルリ
ングを示す縦断面図、第７図は従来のエキスパン
ダを示す部分斜視図である。３……エキスパンダ、４……合口、１１……谷
部、１２……谷部、１１ａ，１１ｂ……谷部の側
面、１２ａ，１２ｂ……谷部の側面、１３，１４
……凸部、１５，１６……対向部。 FIG. 1 is a partial front view showing the first embodiment of the present invention, FIG. 2 is a partial front view showing the second embodiment, FIG. 3 is a partial perspective view of the second embodiment, and FIG. FIG. 5 is a plan view showing a conventional oil ring, FIG. 6 is a vertical sectional view showing a conventional oil ring, and FIG. 7 is a partial perspective view showing a conventional expander. It is. 3... Expander, 4... Abutment, 11... Valley, 12... Valley, 11a, 11b... Side of valley, 12a, 12b... Side of valley, 13, 14
...Convex portion, 15, 16...Opposing portion.

Claims

[Scope of Claim for Utility Model Registration] (1) The utility model is installed in an annular groove provided on the outer circumferential surface of a piston for an internal combustion engine, and is installed by expanding an abutment between an upper side rail and a lower side rail. In the combination oil ring sandwiching a wave-shaped expander having repeated peaks and troughs, which can be attached to the piston, the shape of both ends of the abutment of the expander is symmetrical with respect to the abutment, and each end A combination oil ring characterized in that opposing sides forming a peak or valley are asymmetrical with respect to the center of the peak or valley. (2) It is installed in an annular groove provided on the outer peripheral surface of a piston for an internal combustion engine, and can be installed on the piston by expanding an abutment between an upper side rail and a lower side rail. A combination oil ring that sandwiches a wave-shaped expander having repeated peaks and valleys, characterized in that a convex portion is formed inside each peak or valley at both ends of the abutment of the expander. Combination oil ring. (3) It is installed in an annular groove provided on the outer peripheral surface of a piston for an internal combustion engine, and can be installed on the piston by expanding an abutment between the upper side rail and the lower side rail. A combination oil ring sandwiching a wave-shaped expander having repeated peaks and valleys, characterized in that opposing parts of the expander at both ends of the abutment are magnetized so as to attract each other.