JPS63105791U

JPS63105791U -

Info

Publication number: JPS63105791U
Application number: JP20344086U
Authority: JP
Priority date: 1986-12-26
Filing date: 1986-12-26
Publication date: 1988-07-08
Also published as: JPH0437277Y2

Description

[Brief explanation of the drawing]

第１図は本考案のベーン圧縮機の一実施例を示
す縦断面図、第２図及び第３図はそれぞれ第１図
のＡ―Ａ線、Ｂ―Ｂ線における断面図、第４図は
第３図におけるＣ―Ｃ線の断面図である。シリンダ：１、フロント（リヤ）サイドプレー
ト：２，３、吸入室：４、フロント（リヤ）ハウ
ジング：５，７、油分離室：８、回転軸：１０、
ロータ：１３、ベーン：１６、圧縮室：１７、第
一（第二）貫通穴：２０，３４、吸入通路：２１
、主吸入口：２２、吐出口：２３、吐出室：２４
、吸入量調整用の回動板：３２、副吸入口：３５
、ピン：３６、円弧孔：３７、スプール：３８、
長孔：３９、第一圧力室：４２、第二圧力室：４
３、スプリング：４４、油通路：４５、第一（第
二）受圧面：４６，４９、固定絞り部：４７、連
通路：４８、開閉弁：５０、弁体：５１、弁座：
５２、ピストン：５３、スプリング：５５、リー
ク通路：５７。 Fig. 1 is a longitudinal cross-sectional view showing one embodiment of the vane compressor of the present invention, Figs. 2 and 3 are cross-sectional views taken along line AA and B-B in Fig. 1, respectively, and Fig. 4 is a longitudinal cross-sectional view showing an embodiment of the vane compressor of the present invention. 4 is a sectional view taken along line CC in FIG. 3. FIG. Cylinder: 1, Front (rear) side plate: 2, 3, Suction chamber: 4, Front (rear) housing: 5, 7, Oil separation chamber: 8, Rotating shaft: 10,
Rotor: 13, Vane: 16, Compression chamber: 17, First (second) through hole: 20, 34, Suction passage: 21
, Main suction port: 22, Discharge port: 23, Discharge chamber: 24
, Rotating plate for adjusting suction amount: 32, Sub-intake port: 35
, pin: 36, arc hole: 37, spool: 38,
Long hole: 39, first pressure chamber: 42, second pressure chamber: 4
3. Spring: 44, Oil passage: 45, First (second) pressure receiving surface: 46, 49, Fixed throttle part: 47, Communication passage: 48, Opening/closing valve: 50, Valve body: 51, Valve seat:
52, Piston: 53, Spring: 55, Leak passage: 57.

Claims

[Claims for Utility Model Registration] A rotor is rotatable by a rotary shaft, the rotor having vanes that slide on the inner peripheral surface of the cylinder inside a pair of side plates fixed to both open ends of a cylinder housed in a housing. In a vane compressor that sucks gas from a suction chamber into a plurality of compression chambers whose volumes change by supporting the gas from the suction port and discharges it from the discharge port to the discharge chamber, the gas is supplied from the suction chamber to the compression chamber during the suction stroke. control the amount of refrigerant gas that is sucked in, or control the amount of compressed refrigerant gas that is returned from the compression chamber to the low pressure chamber during the compression stroke, or the capacity that has these two control functions. Rotating plate for control,
A spool chamber is provided between the cylinder and the side plate so as to be reciprocally movable, and a spool chamber is provided in the side plate to reciprocally accommodate a spool that drives the rotary plate. A pressure chamber and a second pressure chamber are provided, and the second pressure chamber is provided with a spring that biases the spool toward the first pressure chamber, and a high pressure chamber such as a discharge chamber, an oil separation chamber, or a compression chamber during a compression stroke, The second pressure chamber is communicated with the second pressure chamber by a communication passage, and the communication passage is provided with an on-off valve that is operated according to the cooling load, and the second pressure chamber is connected to the suction chamber, and the low pressure in the compression chamber during the suction stroke, etc. The first pressure chamber and the high pressure chamber are communicated with each other through a leak passage, and the first pressure chamber and the high pressure chamber are communicated with each other through an oil passage that allows hydraulic pressure equivalent to the discharge pressure to act on the first pressure chamber, and the first pressure chamber and the high pressure chamber are fixed to the oil passage. A variable capacity vane compressor with a throttle section.