JPH0449684U

JPH0449684U -

Info

Publication number: JPH0449684U
Application number: JP9104390U
Authority: JP
Priority date: 1990-08-30
Filing date: 1990-08-30
Publication date: 1992-04-27

Description

[Brief explanation of drawings]

第１図及び第２図は本考案の実施例を示し、第
１図は要部の縦断面図、第２図は要部の部分的平
面図である。第３図及び第４図は従来のスクロー
ル型圧縮機の１例を示し、第３図は部分的平面図
、第４図は全体の縦断面図である。固定スクロール……１、端板……１１、ラツプ
……１２、旋回スクロール……２、端板……２１
、ラツプ……２２、ボス……２３、ドライブブツ
シユ……５４、スライド溝……５５、回転シヤフ
ト……５、偏心駆動ピン……５３、貫通穴……５
６、溝……５７。 1 and 2 show an embodiment of the present invention, with FIG. 1 being a longitudinal sectional view of the main part, and FIG. 2 being a partial plan view of the main part. 3 and 4 show an example of a conventional scroll compressor, with FIG. 3 being a partial plan view and FIG. 4 being a longitudinal sectional view of the entire compressor. Fixed scroll...1, End plate...11, Wrap...12, Orbiting scroll...2, End plate...21
, Wrap...22, Boss...23, Drive bush...54, Slide groove...55, Rotating shaft...5, Eccentric drive pin...53, Through hole...5
6. Groove...57.

Claims

[Scope of utility model registration request]

A fixed scroll and an orbiting scroll each having a spiral wrap erected on the inner surface of the end plate are engaged with each other, and a drive bushing is rotated within a boss protruding from the center of the outer surface of the end plate of the orbiting scroll. In a scroll-type fluid machine, in which an eccentric drive pin protruding from a rotating shaft is slidably fitted into a slide groove bored in the drive bush, At least one through hole is bored along the drive bushing, and a radial groove communicating with the through hole is provided on either the end surface of the drive bushing or the end surface of the rotating shaft that comes into sliding contact with the drive bushing. Scroll type fluid machine.