JPS6214189U

JPS6214189U -

Info

Publication number: JPS6214189U
Application number: JP10633085U
Authority: JP
Priority date: 1985-07-12
Filing date: 1985-07-12
Publication date: 1987-01-28

Description

[Brief explanation of the drawing]

第１図は本考案に係るベーン型圧縮機の一実施
例を示す縦断面図、第２図は第１図の―線に
沿う断面図、第３図は第１図の―線に沿う断
面図、第４図はベローズ弁の要部断面図、第５図
は第１図のＶ―Ｖ線に沿う断面図、第６図は本考
案の第２実施例を示す縦断面図である。８……カムリング、９……フロントサイドブロ
ツク、１０……リヤサイドブロツク、１１……ロ
ータ、１６……空隙室、１８_１〜１８_４……ベー
ン、２０……周方向吸入ポート、２２……バイパ
スポート、２５……開閉部材、２７……係合溝、
３２……ベローズ弁、４０……電磁弁。 Fig. 1 is a longitudinal sectional view showing an embodiment of the vane type compressor according to the present invention, Fig. 2 is a sectional view taken along line - in Fig. 1, and Fig. 3 is a sectional view taken along line - in Fig. 1. 4 is a sectional view of a main part of the bellows valve, FIG. 5 is a sectional view taken along the line V--V in FIG. 1, and FIG. 6 is a longitudinal sectional view showing a second embodiment of the present invention. 8...Cam ring, 9...Front side block, 10...Rear side block, 11...Rotor, 16...Gap chamber, 181 _to ₁₈₄ ...Vane, 20...Circumferential suction port, 22...Bypass Port, 25...opening/closing member, 27...engaging groove,
32...Bellows valve, 40...Solenoid valve.

Claims

[Scope of utility model registration request]

A cam ring whose both sides are closed by side blocks, a rotor rotatably disposed within the cam ring, and a vane slidably fitted into a vane groove of the rotor, the side block, the cam ring, In a vane type compressor that compresses fluid by varying the volume of a cavity defined by a rotor and vanes, the volume of the cavity divided by the vanes on the inner circumferential wall of the cam ring is A circumferential suction port is opened at the maximum position, and a bypass port is opened that is located forward of the circumferential suction port in the rotational direction of the rotor and communicates the void chamber with the low pressure side, and the bypass port is opened on the one side. A side block is provided with an engagement groove of a sealed structure connected to the bypass port, and the bypass port is opened and closed in the engagement groove, and is biased in the direction of opening the bypass port by a biasing means. The opening/closing member is slidably disposed, and when the suction temperature rises, by communicating the engagement groove with the high pressure side, the opening/closing member is moved against the biasing force of the biasing means at the high pressure. The bypass port is slid in a direction to close the bypass port, and when the blowout temperature decreases, the engaging groove and the low pressure side are communicated with each other so that the opening/closing member is caused to slide in the direction to open the bypass port by the biasing means. A vane type compressor that is characterized by: