JPS6197598U

JPS6197598U -

Info

Publication number: JPS6197598U
Application number: JP18285284U
Authority: JP
Priority date: 1984-12-01
Filing date: 1984-12-01
Publication date: 1986-06-23

Description

[Brief explanation of drawings]

第１図はこの考案に係るベーン型回転圧縮機の
一実施例を示す断面図、第２図は第１図における
−線断面図、第３図は従来のベーン型回転圧
縮機を示す断面図、第４図は第３図における−
線断面図である。１…ベーン、１ａ…側端面、２…ロータ、２ａ
…ベーンスロツト、２ｂ…背圧室、２ｃ…連通溝
、３…カムリング、３ｃ…カム面、４，５…サイ
ドプレート、４ａ，５ａ…内側面、６…作業室、
１１…凹部。 Fig. 1 is a sectional view showing an embodiment of the vane type rotary compressor according to this invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is a sectional view showing a conventional vane type rotary compressor. , Figure 4 shows - in Figure 3.
FIG. 1... Vane, 1a... Side end surface, 2... Rotor, 2a
... Vane slot, 2b... Back pressure chamber, 2c... Communication groove, 3... Cam ring, 3c... Cam surface, 4, 5... Side plate, 4a, 5a... Inner surface, 6... Working chamber,
11... recess.

Claims

[Scope of utility model registration request]

A rotor having a vane slot for accommodating a plurality of vanes so as to be able to protrude and retract in a substantially radial direction, and a cam surface that accommodates the rotor therein and causes the vanes to protrude and retract within the vane slot as the rotor rotates. a cam ring, and a pair of side plates attached to openings at both ends of the cam ring so as to close the openings at both ends; In the vane type rotary compressor, which compresses and discharges the working fluid to the outside by changing the volume of the working chamber, recesses are formed in both end surfaces of the plurality of vanes facing the inner surfaces of the respective side plates. , the outer periphery of these recesses does not face the working chamber when the vane is fully extended, and
A vane type rotary compressor, characterized in that an inner circumference thereof faces a back pressure chamber at the bottom of the vane slot only when the vane is shortened.