JPS63166694U

JPS63166694U -

Info

Publication number: JPS63166694U
Application number: JP5915987U
Authority: JP
Priority date: 1987-04-17
Filing date: 1987-04-17
Publication date: 1988-10-31
Anticipated expiration: 2002-04-17
Also published as: JPH0528397Y2

Description

[Brief explanation of the drawing]

第１図はこの考案を具体化したベーン型圧縮機
の要部断面図、第２図及び第３図はそれぞれリヤ
及びフロントのサイドプレートを示す正面図、第
４図はベーン型圧縮機の中央部縦断面図、第５図
は同じくベーン型圧縮機の横断面図、第６図〜第
９図はそれぞれ第１バルブ及び第２バルブの作動
状態を示す断面図、第１０図は従来のベーン型圧
縮機の中央部縦断面図、第１１図は同じく横断面
図である。シリンダ……１、フロントサイドプレート……
２、リヤサイドプレート……３、ロータ……１１
、作動室……１２、ベーン……１３、ベーン溝…
…１４、背圧通路……１５、圧縮室……１６、吸
入口……１８、吐出口……１９、吐出室……２０
、連通孔……２１、油通路……２６、背圧溝……
２７，２８、油通路２６と環状通路３ｂとプレー
ンベアリング１０の細隙と軸孔３ａとからなる中
間圧油供給通路……２９、第１バルブ……３５、
第２バルブ……３６、第１バネ……３８、第２バ
ネ……３９、低圧室……Ｒｓ、中間圧室……Ｒｉ
、高圧室……Ｒｄ、低圧力……Ｐｓ、第１中間圧
力……Ｐｉ１、高圧力……Ｐｄ、第１設定値……
Ｐｃ１、第２設定値……Ｐｃ２。 Figure 1 is a sectional view of the main parts of a vane compressor embodying this idea, Figures 2 and 3 are front views showing the rear and front side plates, respectively, and Figure 4 is the center of the vane compressor. FIG. 5 is a cross-sectional view of the same vane type compressor, FIGS. 6 to 9 are cross-sectional views showing the operating states of the first valve and second valve, respectively, and FIG. 10 is a conventional vane compressor. FIG. 11 is a vertical cross-sectional view of the central part of the mold compressor, and a cross-sectional view thereof. Cylinder...1, Front side plate...
2. Rear side plate...3. Rotor...11
, Working chamber...12, Vane...13, Vane groove...
...14, Back pressure passage...15, Compression chamber...16, Suction port...18, Discharge port...19, Discharge chamber...20
, communication hole...21, oil passage...26, back pressure groove...
27, 28, intermediate pressure oil supply passage consisting of the oil passage 26, the annular passage 3b, the slit of the plain bearing 10, and the shaft hole 3a...29, the first valve...35,
Second valve...36, First spring...38, Second spring...39, Low pressure chamber...Rs, Intermediate pressure chamber...Ri
, high pressure chamber...Rd, low pressure...Ps, first intermediate pressure...Pi1, high pressure...Pd, first set value...
Pc1, second setting value...Pc2.

補正昭６２．６．１図面の簡単な説明を次のように補正する。明細書第２４頁第２行の「第１バルブ……３５
」の記載を「高圧ガス供給通路……３０、第１バ
ルブ室……３３、第２バルブ室……３４、第１バ
ルブ……３５」と補正する。Amendment June 1, 1986 The brief description of the drawing is amended as follows. “First valve...35” on page 24, line 2 of the specification
'' has been corrected to ``High-pressure gas supply passage...30, first valve chamber...33, second valve chamber...34, first valve...35''.

Claims

[Claims for Utility Model Registration] A cylindrical or elliptical cylinder having an intake port and a discharge port, front and rear side plates joined and fixed to both front and rear end surfaces of the cylinder, and a working chamber within the cylinder. a rotor rotatably supported by a rotating shaft to form a rotor, vanes slidably inserted into a plurality of radial vane grooves formed in the rotor, and a vane so as to cover at least the rear side plate. a housing provided on the rear side plate and forming an oil separation chamber between the side surface of the rear side plate; a communication hole passing through the rear side plate and communicating the discharge chamber and the oil separation chamber; and a housing on the rotor side of the rear side plate. a back pressure groove carved on the sliding surface and communicating with the back pressure passage formed at the bottom of the vane groove from the beginning to the middle of the compression stroke; and a back pressure groove formed on the rear side plate and connected to the oil separation chamber. an intermediate pressure oil supply passage for reducing the pressure of the oil to an intermediate pressure and supplying it to the back pressure groove; and a high pressure gas supply passage for supplying refrigerant gas from the oil separation chamber to the back pressure groove from the oil separation chamber to the back pressure groove. In the vane type compressor, a first valve chamber and a second valve chamber are provided in the middle of the intermediate pressure oil supply passage and the high pressure gas supply passage, respectively, and the first valve and the second valve are reciprocated. The first valve chamber is divided into a low pressure chamber that communicates with the suction chamber by a first valve and an intermediate pressure chamber that communicates with the back pressure groove, and the second valve chamber is also divided into a low pressure chamber that communicates with the suction chamber by a first valve, and a second valve chamber that communicates with the refrigerant by a second valve. a high pressure chamber communicating with an oil separation chamber in a gas atmosphere and the intermediate pressure chamber; the first valve is normally biased by a first spring in a direction to close the intermediate pressure oil supply passage; A vane compressor in which the valve is normally biased in the direction of opening the high pressure gas supply passage by a second spring.