JPS59111979U

JPS59111979U - refrigerant compressor

Info

Publication number: JPS59111979U
Application number: JP706683U
Authority: JP
Inventors: 原　正良; 常徳森
Original assignee: 三菱電機株式会社
Priority date: 1983-01-19
Filing date: 1983-01-19
Publication date: 1984-07-28

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は、従来の冷媒圧縮機頭部の断面図、第２図は第
１図の■−■線における断面図、第３図は従来のピスト
ンリング装着部の拡大断面図、第４図はこの考案の一実
施例を示すピスト９ンリング装着部の拡大断面図である
。なお、図中、同一符号は同一または相当部分を示す。図
中、１はピストン、２はシリンダ、５はピストンリング
、５ａはピストシリ、ング５の合い口部、１２は面取り
部、１３は均圧通路を示す。Fig. 1 is a sectional view of the head of a conventional refrigerant compressor, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, Fig. 3 is an enlarged sectional view of a conventional piston ring mounting part, and Fig. 4 FIG. 1 is an enlarged sectional view of a piston 9 ring mounting portion showing an embodiment of this invention. In addition, in the figures, the same reference numerals indicate the same or corresponding parts. In the figure, 1 is a piston, 2 is a cylinder, 5 is a piston ring, 5a is a piston seal, a joint portion of the ring 5, 12 is a chamfered portion, and 13 is a pressure equalizing passage.

Claims

[Scope of utility model registration request]

(1) A piston that reciprocates within a cylinder, and a piston ring installed in a piston ring groove of the piston, characterized in that a corner of a side wall of the piston ring groove facing the lower surface of the piston ring is chamfered over the entire circumference. refrigerant compressor.