JPH0178283U

JPH0178283U -

Info

Publication number: JPH0178283U
Application number: JP1987173322U
Authority: JP
Priority date: 1987-11-12
Filing date: 1987-11-12
Publication date: 1989-05-25

Description

[Brief explanation of the drawing]

第１図はこの考案を具体化した可変容量型ベー
ン圧縮機の一実施例を示す縦断面図、第２図は第
１図のＡ−Ａ線における断面図、第３図は第１図
のＢ−Ｂ線における断面図、第４図は第３図のＣ
−Ｃ線における部分断面図、第５図は第１図のＤ
−Ｄ線における断面図、第６図は第１図のＥ−Ｅ
線における断面図、第７図は高圧切替タイミング
を示す線図である。１……シリンダ、２……フロントサイドプレー
ト、３……リヤサイドプレート、１３……ロータ
、１５……ベーン溝、１５ａ……底部、１６……
ベーン、２０……吸入口としての第一貫通穴、２
１……吸入通路、２３……吐出口、３２……容量
制御部材としての回動板、２３……貫通穴、６２
……背圧溝。第一貫通穴２０、吸入通路２１及び
第二貫通穴３４によりガス吸入路が構成されてい
る。 Fig. 1 is a longitudinal sectional view showing an embodiment of a variable capacity vane compressor embodying this idea, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a cross-sectional view of Fig. 1. A cross-sectional view taken along line B-B, Figure 4 is C in Figure 3.
- Partial sectional view taken along line C, Figure 5 is D of Figure 1.
-D cross-sectional view, Figure 6 is E-E in Figure 1
A cross-sectional view along the line, FIG. 7 is a diagram showing high voltage switching timing. 1... Cylinder, 2... Front side plate, 3... Rear side plate, 13... Rotor, 15... Vane groove, 15a... Bottom, 16...
Vane, 20...first through hole as suction port, 2
DESCRIPTION OF SYMBOLS 1...Suction passage, 23...Discharge port, 32...Rotating plate as a capacity control member, 23...Through hole, 62
...Back pressure groove. The first through hole 20, the suction passage 21, and the second through hole 34 constitute a gas suction passage.

Claims

[Claims for Utility Model Registration] A rotor is rotatably accommodated and supported between a pair of side plates fixedly joined to both ends of the cylinder, and vanes are slidably fitted into a plurality of vane grooves on the outer circumference of the rotor. As the rotor rotates, the vanes act to suck in and compress refrigerant gas through an inlet formed in one side plate, and discharge it from an outlet formed in the other side plate or cylinder. In addition, a capacity control member is rotatably provided between the one side plate and the rotor, and the suction area of the gas suction passage is changed by rotation of the capacity control member, thereby changing the capacity. In the capacity-type vane compressor, the capacity control member is provided with a back pressure groove that communicates with the bottom of each vane groove and extends in an arc shape for applying back pressure to the vane, and the back pressure groove is connected to the capacity control member. A variable displacement vane compressor configured to be able to move on a rotation trajectory at the bottom of the vane groove as the vane rotates.