JPS61173792U

JPS61173792U -

Info

Publication number: JPS61173792U
Application number: JP5687785U
Authority: JP
Priority date: 1985-04-18
Filing date: 1985-04-18
Publication date: 1986-10-29

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示し、第１図はベー
ン型圧縮機の縦断面図、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図は第１図の―線に沿う断面
図、第５図は高速運転時の第４図と同状の断面図
、第６図は第１図の―線に沿う断面図、第７
図は回動部材の斜視図、第８図は開閉部材の一側
面斜視図、第９図は同他側面斜視図である。６…カムリング、７…フロントサイドブロツク
、８…リヤサイドブロツク、９…ロータ、１２…
ベーン溝、１３_１〜１３_４…ベーン、１４…空隙
室、１５…周方向吸入ポート、２０…サイド吸入
ポート、２２…開閉部材、２６…受圧板（受圧部
材）、２７…ばね（付勢部材）。 The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional view of a vane type compressor, and FIG. 2 is a cross-sectional view of the vane compressor.
Figure 3 is a cross-sectional view taken along the - line in Figure 1, Figure 4 is a cross-sectional view taken along the line - in Figure 1, Figure 5 is the same as Figure 4 during high-speed operation. Figure 6 is a cross-sectional view taken along the - line in Figure 1, Figure 7 is a cross-sectional view of
The figure is a perspective view of the rotating member, FIG. 8 is a perspective view of one side of the opening/closing member, and FIG. 9 is a perspective view of the other side. 6...Cam ring, 7...Front side block, 8...Rear side block, 9...Rotor, 12...
Vane groove, 13 ₁ to 13 ₄ ... vane, 14... void chamber, 15... circumferential suction port, 20... side suction port, 22... opening/closing member, 26... pressure receiving plate (pressure receiving member), 27... spring (biasing member) ).

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 The circumferential suction port is opened at the maximum position, and the vane is located on the front side in the rotational direction of the rotor from the circumferential suction port and is located on the sliding surface side of the one side block that contacts the rotor. The side suction port is opened at a position where the volume of the void chamber divided by the side suction port is maximum, and an opening/closing member for opening and closing the side suction port is slidably provided on the one side block, and the opening/closing member is moved by a biasing member. The opening/closing member is provided with a pressure receiving member that receives the dynamic pressure of the fluid to be compressed on the inflow side, and the opening/closing member is biased in the direction of closing the side suction port by the action of the dynamic pressure during high-speed operation. A vane type compressor, characterized in that the suction port closing angle is increased by sliding the side suction port in the opening direction against the biasing force of the biasing member.