JPS61155692U

JPS61155692U -

Info

Publication number: JPS61155692U
Application number: JP3864685U
Authority: JP
Priority date: 1985-03-18
Filing date: 1985-03-18
Publication date: 1986-09-26

Description

[Brief explanation of the drawing]

第１図はこの考案の実施例に用いた吸入圧力制
御弁であつて半開時の状態を示す第３図の―
線断面図、第２図は同上の実施例におけるベーン
型圧縮機の全体を示す断面図、第３図は第１図の
―線断面図、第４図は同上の吸入圧力制御弁
であつて停止時の一状態を示す断面図、第５図は
同上の吸入圧力制御弁であつて停止時の他の状態
を示す断面図、第６図は同上の吸入圧力制御弁で
あつて全開時の状態を示す断面図である。９…シリンダヘツド、１１…低圧室、１５…吸
入圧力制御弁、１６…吸入口、１７…弁ハウジン
グ、２０…吸入通路、２１…弁本体、２４…第１
の作動室、２５…第１の弾性部材、２６…圧力応
動部材、３１…パイロツト通路、３２…パイロツ
ト弁、３４…チエツク弁、３５…第２の作動室、
３６…第２の弾性部材、３８…第１のオリフイス
、３９…第２のオリフイス。 Figure 1 shows the suction pressure control valve used in the embodiment of this invention, and Figure 3 shows the valve in a half-open state.
2 is a sectional view showing the entire vane type compressor according to the above embodiment, FIG. 3 is a sectional view taken along the line -- in FIG. 1, and FIG. FIG. 5 is a cross-sectional view showing the suction pressure control valve in one state when it is stopped; FIG. 6 is a cross-sectional view showing the same suction pressure control valve in another state when it is stopped; FIG. It is a sectional view showing a state. 9... Cylinder head, 11... Low pressure chamber, 15... Suction pressure control valve, 16... Suction port, 17... Valve housing, 20... Suction passage, 21... Valve body, 24... First
working chamber, 25...first elastic member, 26...pressure responsive member, 31...pilot passage, 32...pilot valve, 34...check valve, 35...second working chamber,
36...Second elastic member, 38...First orifice, 39...Second orifice.

Claims

[Scope of utility model registration request]

A suction pressure control valve is provided in the cylinder head following the suction port formed in the cylinder head, and the suction pressure control valve is connected to a valve housing fixed to the cylinder head and slidably within the valve housing. The inserted valve body and a first elastic member elastically mounted between the valve body and the valve housing are slidably fitted to the valve body, and the suction is adjusted according to the position thereof. a check valve that changes the opening area of the suction passage connecting the mouth and the low pressure chamber in the cylinder head; a second elastic member elastically mounted between the check valve and the valve body; The valve includes a pressure responsive member that is displaced in response to pressure, and a pilot valve that is connected to the pressure responsive member and opens and closes a pilot passage formed in the valve housing, and that opens and closes the low pressure chamber when the pilot passage is opened. A working chamber that communicates with the valve housing, the valve body, and the check valve is constituted by a first orifice formed in the valve body and a second orifice formed in the check valve. A vane compressor for a car cooler, characterized in that the valves are aligned when they are closest to each other, and when the valves are half open, the suction passage and the working chamber communicate with each other via the first orifice and the second orifice.