JPH0166491U

JPH0166491U -

Info

Publication number: JPH0166491U
Application number: JP1987161914U
Authority: JP
Priority date: 1987-10-22
Filing date: 1987-10-22
Publication date: 1989-04-27

Description

[Brief explanation of the drawing]

第１図から第４図は本考案の一実施例を示して
おり、第１図はベーン型圧縮機の縦断面図、第２
図は第１図の―線に沿う断面図、第３図は回
転体が全稼働位置（第１位置）にある状態を示す
第１図の―線に沿う断面図、第４図は回転体
が一部稼働位置（第２位置）にある状態を示す第
３図と同様の断面図である。１…ベーン型圧縮機、２…フロントサイドブロ
ツク、３…リヤサイドブロツク（一方のサイドブ
ロツク）、３ａ…吸入ポート、４…カムリング、
４ａ…内周面、５…ロータ、５ａ…外周面、６…
圧縮室、８…リヤヘツド（一方のサイドブロツク
に取付けられたヘツド）、９…吸入口、１１…吸
入室、１３…駆動軸、１３ｂ…反駆動源側端部、
１３ｃ…羽根、１６_１〜１６_５…ベーン、１７…
回転体、１７ａ…羽根、１７ｂ…吸入孔。 Figures 1 to 4 show an embodiment of the present invention, with Figure 1 being a longitudinal sectional view of a vane type compressor, Figure 2
The figure is a sectional view taken along line - in Fig. 1, Fig. 3 is a sectional view taken along line - in Fig. 1, showing the state in which the rotating body is in the full operating position (first position), and Fig. 4 is a sectional view taken along line - in Fig. 4. FIG. 4 is a cross-sectional view similar to FIG. 3, showing a state in which the device is in a partially activated position (second position). 1... Vane type compressor, 2... Front side block, 3... Rear side block (one side block), 3a... Suction port, 4... Cam ring,
4a...inner circumferential surface, 5...rotor, 5a...outer circumferential surface, 6...
Compression chamber, 8... Rear head (head attached to one side block), 9... Suction port, 11... Suction chamber, 13... Drive shaft, 13b... Opposite drive source side end,
13c...Blade, 16 ₁ to 16 ₅ ...Vane, 17...
Rotating body, 17a...Blade, 17b...Suction hole.

Claims

[Scope of utility model registration request]

A compression chamber is defined between the inner peripheral surface of the cam ring, both sides of which are closed by side blocks, and the outer peripheral surface of the rotor rotating within the cam ring, and a suction chamber communicating with the suction port is defined between one of the side blocks and the outer peripheral surface of the rotor rotating within the cam ring. a head attached to a side block, a plurality of vanes are fitted to the rotor so as to be freely protrusive and retractable in a radial direction, and a drive shaft for rotating the rotor by power from a drive source is inserted through both side blocks. In a vane type compressor, the volume surrounded by the cam ring, rotor, and vanes changes as the rotor rotates to suction, compress, and discharge refrigerant; a portion protrudes from the one side block into the suction chamber, and a blade is formed around the end portion on the side opposite to the drive source;
A rotating body having blades facing the blades and rotating by the twisting force of a fluid sealed in a space surrounding both blades is brought into sliding contact with the end face of the one side block to counter-drive the drive shaft. A suction port is provided on the outer periphery of the source end, the one side block is provided with a suction port extending in the rotational direction of the rotor, and the suction hole communicates with the suction chamber and the suction port in the rotating body and extends in the rotational direction. The rotating body is rotatable between a first position where the overlap between the suction hole and the suction port is minimum and a second position where the overlap is maximum, A vane type compressor, characterized in that the vane type compressor is biased toward the first position against a drag force.