JPS61183491U

JPS61183491U -

Info

Publication number: JPS61183491U
Application number: JP6690885U
Authority: JP
Priority date: 1985-05-08
Filing date: 1985-05-08
Publication date: 1986-11-15

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の回転圧縮機の横断
面図、第２図は第１図の―線に沿う断面をや
や縮小して示す図、第３図ないし第９図はそれぞ
れ異なる実施例の気体集積溝と流入口を略図的に
示す斜視図、ただしセンターハウジングは展開し
て示す。第１０図は、別の実施例の気体集積溝の
展開図、第１１図及び第１２図は本考案の回転圧
縮機と従来のものの性能比較テストの結果を示す
グラフである。第１３図は別の実施例のセンター
ハウジングの展開図、第１４図は本考案の他の実
施例を示す回転圧縮機の要部横断面図である。図において符号１０はロータ、１６はベーン、
２２はセンターハウジング、３０は回転スリーブ
、３２は気体集積溝、４３は作動室、７１は流入
口、７２は空気ため溝である。 Fig. 1 is a cross-sectional view of a rotary compressor according to an embodiment of the present invention, Fig. 2 is a slightly reduced cross-sectional view taken along the line - in Fig. 1, and Figs. 3 to 9 are different from each other. FIG. 2 is a perspective view schematically showing the gas accumulation groove and inlet of the embodiment, but the center housing is shown expanded. FIG. 10 is a developed view of a gas accumulation groove of another embodiment, and FIGS. 11 and 12 are graphs showing the results of a performance comparison test between the rotary compressor of the present invention and a conventional one. FIG. 13 is a developed view of a center housing of another embodiment, and FIG. 14 is a cross-sectional view of a main part of a rotary compressor showing another embodiment of the present invention. In the figure, numeral 10 is a rotor, 16 is a vane,
22 is a center housing, 30 is a rotating sleeve, 32 is a gas accumulation groove, 43 is a working chamber, 71 is an inlet, and 72 is an air storage groove.

Claims

[Claims for Utility Model Registration] (1) A rotating sleeve rotatably supported by a center housing, a rotor that rotates at an eccentric position of the rotating sleeve, a vane that is fitted in and out of the rotor, and the rotating sleeve. A large number of gas accumulation grooves are formed separately from each other on either or both of the entire outer circumferential surface of the center housing and at least the discharge side inner circumferential surface of the center housing. Alternatively, the discharge chamber is provided with an inlet that communicates with the working chamber partitioned by the two adjacent vanes immediately before ventilation, and the suction portions of each gas accumulation groove are arranged on the same circumference, and the In a rotary compressor in which an inlet is provided at a position corresponding to the suction section, the length in the circumferential direction of each of the gas accumulation grooves is 1 with respect to the entire circumference of the outer circumferential surface of the rotary sleeve or the entire circumferential length of the inner circumferential surface of the center housing. /12
~1/2, and the ratio of the circumferential width of the suction portion of each circumferentially adjacent gas accumulation groove to the width between each gas accumulation groove in the suction portion is 3:7 to 7:3. Rotary compressor. (2) The rotary compressor according to claim 1, wherein the width of each gas accumulation groove becomes gradually narrower from the suction section toward the compression section. (3) Utility model registration claim 1, characterized in that the inlet is opened in the shape of a groove extending in the circumferential direction.
The rotary compressor according to item 1 or 2. (4) Utility model registration claim 1 or 2, characterized in that an air storage groove is provided at an upstream position on the same circumference as the inlet on the inner circumferential surface of the center housing.
The rotary compressor described in section. (5) Scope of Utility Model Registration Claim 1, characterized in that an air storage groove is provided at one or both of the discharge side position and the suction side position on the same circumference as the inflow port on the inner peripheral surface of the center housing. The rotary compressor according to any one of items 1 to 4.