JPS59144186U

JPS59144186U - gas compressor

Info

Publication number: JPS59144186U
Application number: JP3896983U
Authority: JP
Inventors: 杉田　光充; 星　正夫
Original assignee: セイコー精機株式会社
Priority date: 1983-03-17
Filing date: 1983-03-17
Publication date: 1984-09-26
Also published as: JPS6349586Y2

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の気体圧縮機の側断面図、第２図は第１図
のＡ−Ａ線断面図、第３図は同従来例における吐出ポー
ト付近の拡大断面図、第４図は従、来のチャタリング防
止機構を付加した気体圧縮機のフロントまたはリアサイ
ドブロックの端面図、第５図は本考案に係る気体圧縮機
におけるフロントまたはリアサイドブロックの端面図、
第６図は同シリンダ及び両サイドブロックを分解して示
す斜視図である。１・・・シリンダ、２・・・フロントサイドブロック、
３・・・リアサイドブロック、４・・・ベーン、５・・
−０−タ、５ａ・・・ロータ軸、６・・・圧縮機本体、
７・・・空間部、８・・・潤滑油、９・・・ケーシング
、１４，１５゜１６．２０．２１・・・連絡孔、３０・
・・第１の溝、３１・・・第２の溝、３２・・・小径の
連絡孔、３３・・・連絡溝。Fig. 1 is a side sectional view of a conventional gas compressor, Fig. 2 is a sectional view taken along line A-A in Fig. 1, Fig. 3 is an enlarged sectional view of the vicinity of the discharge port in the conventional example, and Fig. 4 is a conventional gas compressor. FIG. 5 is an end view of the front or rear side block of the gas compressor according to the present invention;
FIG. 6 is an exploded perspective view of the cylinder and both side blocks. 1...Cylinder, 2...Front side block,
3...Rear side block, 4...Vane, 5...
-0-ta, 5a... rotor shaft, 6... compressor body,
7... Space, 8... Lubricating oil, 9... Casing, 14,15°16.20.21... Communication hole, 30.
...First groove, 31...Second groove, 32...Small diameter communication hole, 33...Communication groove.

Claims

[Scope of utility model registration request]

A compressor body comprising a rotor having a plurality of vanes that can move forward and backward in the radial direction is rotatably suspended in a cylinder chamber configured by a cylinder and both side blocks attached to both sides of the cylinder; A sealed system that houses the compressor main body, forms a space at the rear of the rear side block, stores lubricating oil under discharge pressure in this space, and holds the tip of the rotor shaft of the front rotor rotatably. A casing is provided, and the lubricating oil is supplied to each part by discharge pressure, and at the same time, a part of the lubricating oil is forced into the slit of the rotor in which the vane is held, and the oil pressure is applied to the inner wall of the cylinder chamber. In the device for obtaining the contact pressure of the vanes, a first groove concentric with the outer circumferential end surface of the bearing portion of the rotor shaft is formed on the contact surface between each of the side blocks and the rotor; Medium-pressure lubricating oil seeped from the bearing part is added to the bottom of the slit through the groove, and the groove is concentric with the first groove and communicates with a high-pressure lubricating oil passage, and the vane has a maximum protrusion. A second groove is formed on the end face of each side block, and a communication groove communicating with the bottom of the vane is formed near the discharge port of the second groove. A gas compressor characterized in that, by doing so, high-pressure hydraulic pressure is applied to the bottom of the vane through the second groove in the vicinity of the discharge port.