JPS646385U

JPS646385U -

Info

Publication number: JPS646385U
Application number: JP10218387U
Authority: JP
Priority date: 1987-07-02
Filing date: 1987-07-02
Publication date: 1989-01-13

Description

[Brief explanation of the drawing]

第１図は本考案に係るスライドベーン型回転圧
縮機の全体を表わす断面図（第２図におけるＣ−
Ｃ線断面図）、第２図は第１図におけるＡ−Ａ線
断面図、第３図は同じく第１図におけるＢ−Ｂ線
断面図である。又、第４図と第５図は従来構造を
表わす図面であつて、第４図は第５図におけるＥ
―Ｅ線断面図、第５図は第４図におけるＤ−Ｄ線
断面図である。１……ハウジング、１……Ｆフロントハウジン
グ、１Ｒ……リヤハウジング、２……シリンダー
ブロツク、３Ｆ……フロントサイドプレート、３
Ｒ……リヤサイドプレート、４Ｆ，４Ｒ……軸受
け部、５……ロータ、６……圧縮室、７……ベー
ン溝、７′……背圧室、８……ベーン、９……吸
入室、９′……吸入口、１０……吸入孔、１１…
…ボス、１２……駆動軸、１３……吐出室、１３
′……吐出口、１４……吐出孔、１５……吐出弁
、１６……リテーナ、１７……潤滑油分離室、１
８……通孔、１９……高圧力の導圧孔、２０，２
０ａ，２０ｂ……補助導圧孔、２１……バルブ、
２２……弁座、２３……ボール弁、２４……ばね
、２５……溜り部、２６……ベアリングカバー、
２７……ベアリング室、２８，２８ａ，２８ｂ…
…主導圧孔、２９……圧力溝。 Figure 1 is a cross-sectional view showing the entire slide vane type rotary compressor according to the present invention (C--C in Figure 2).
2 is a sectional view taken along line AA in FIG. 1, and FIG. 3 is a sectional view taken along line BB in FIG. 1. Moreover, FIGS. 4 and 5 are drawings showing the conventional structure, and FIG.
5 is a sectional view taken along line D--D in FIG. 4. 1...Housing, 1...F front housing, 1R...Rear housing, 2...Cylinder block, 3F...Front side plate, 3
R... Rear side plate, 4F, 4R... Bearing section, 5... Rotor, 6... Compression chamber, 7... Vane groove, 7'... Back pressure chamber, 8... Vane, 9... Suction chamber, 9'...Suction port, 10...Suction hole, 11...
... Boss, 12 ... Drive shaft, 13 ... Discharge chamber, 13
'...Discharge port, 14...Discharge hole, 15...Discharge valve, 16...Retainer, 17...Lubricating oil separation chamber, 1
8...Through hole, 19...High pressure impulse hole, 20,2
0a, 20b...Auxiliary pressure hole, 21...Valve,
22... Valve seat, 23... Ball valve, 24... Spring, 25... Reservoir, 26... Bearing cover,
27...Bearing chamber, 28, 28a, 28b...
...Main pressure hole, 29...Pressure groove.

Claims

[Scope of utility model registration request]

A cylinder block formed into a hollow cylindrical shape,
There are multiple compression chambers in the sealed space formed by the front and rear side plates that cover both the front and rear openings of the cylinder block, and the rotor is rotatably supported on its axis.The rotor is provided with vane grooves. The vane groove has a back pressure chamber at the bottom, into which the vane can be inserted and retracted, while the side plate has a plurality of pressure grooves at positions corresponding to the rotation locus of the back pressure chamber. In a slide vane type rotary compressor in which the pressure grooves are recessed and communicated with a lubricant reservoir formed at the bottom of the lubricant separation chamber, the lubricant separation chamber or discharge chamber is connected between the pressure grooves. An auxiliary pressure guiding hole is provided in communication with the auxiliary pressure guiding hole, and the valve can be opened and closed by changing the differential pressure generated between the discharge pressure in the discharge chamber or lubricating oil separation chamber and the back pressure in the pressure groove. The auxiliary pressure guide holes are provided in the slide vane type rotary compressor, and the auxiliary pressure grooves are connected to each of the pressure grooves independently, and both openings are provided facing a position corresponding to the suction stroke of the compression chamber. Anti-chattering structure.