JPS61137888U

JPS61137888U -

Info

Publication number: JPS61137888U
Application number: JP2095285U
Authority: JP
Priority date: 1985-02-15
Filing date: 1985-02-15
Publication date: 1986-08-27

Description

[Brief explanation of drawings]

第１図は本考案に係る揺動斜板型圧縮機の全体
を表わす断面図、第２図と第３図はコントロール
バルブ部分の作用状態を表わす拡大断面図、第４
図はクールダウンの作用状態を表わすグラフ図で
ある。又、第５図は従来構造の揺動斜板型圧縮機
の全体を表わす断面図である。１…シリンダーブロツク、２…フロントハウジ
ング、３…リヤハウジング、４…バルブプレート
、５Ａ，５Ｂ…軸受け部、６…吸入室、７…吐出
室、８…隔壁、９…吸入口、１０…吐出口、１１
…吸入弁、１２…吐出弁、１３…クランク室、１
４…ボア、１５…圧縮室、１６…ピストン、１７
…ドライブシヤフト、１８…支持ポスト、１９…
回転斜板、２０…揺動板、２１…コンロツド、２
２…長孔、２３…ピン、２４…ベアリング、２５
…コントロールバルブ、２６…吸入圧力室、２７
…逃し通路、２８…吐出圧力室、２９…供給通路
、３０，３１…弁座、３２…ボール、３３…弁棒
、３４…ベローズ、３５…固定ばね座、３６…可
動ばね座、３７…ばね、３８…ガイド筒部、３９
…大気圧力室、４０…ガイド棒、４１…ばね、４
２…ストツパー。 FIG. 1 is a cross-sectional view showing the entire swinging swash plate compressor according to the present invention, FIGS. 2 and 3 are enlarged cross-sectional views showing the operating state of the control valve part, and FIG.
The figure is a graph showing the state of cool-down action. Further, FIG. 5 is a sectional view showing the entirety of a conventionally constructed oscillating swash plate type compressor. DESCRIPTION OF SYMBOLS 1... Cylinder block, 2... Front housing, 3... Rear housing, 4... Valve plate, 5A, 5B... Bearing part, 6... Suction chamber, 7... Discharge chamber, 8... Partition wall, 9... Suction port, 10... Discharge port , 11
...Suction valve, 12...Discharge valve, 13...Crank chamber, 1
4...Bore, 15...Compression chamber, 16...Piston, 17
...Driveshaft, 18...Support post, 19...
Rotating swash plate, 20... Rocking plate, 21... Conrod, 2
2... Long hole, 23... Pin, 24... Bearing, 25
...Control valve, 26...Suction pressure chamber, 27
...Relief passage, 28...Discharge pressure chamber, 29...Supply passage, 30, 31...Valve seat, 32...Ball, 33...Valve stem, 34...Bellows, 35...Fixed spring seat, 36...Movable spring seat, 37...Spring , 38... Guide cylinder part, 39
...Atmospheric pressure chamber, 40...Guide rod, 41...Spring, 4
2...stopper.

Claims

[Scope of utility model registration request]

A front housing forming a crank chamber;
a cylinder block forming several bores;
A rear housing forming a suction chamber and a discharge chamber is integrally connected, and a rotary swash plate is mounted in the crank chamber so as to be able to swing and rotate around the drive shaft, and a rotary swash plate is held so as to be movable relative to the same rotary swash plate. A rocking plate is provided, and the rocking plate connects the discharge chamber and the crankcase to the rear housing and cylinder block of the compressor main body, which is connected to the piston inserted into the bore via the piston rod.
Independent first and second passages are formed that communicate with the suction chamber and the crankcase, and a valve seat and a ball are formed in the first passage that communicates with the discharge chamber to open and close the passages. A first control valve is disposed in a second passage communicating with the suction chamber, and is connected to a second control valve and a second control valve that operates the first control valve and opens and closes the second passage; In a oscillating swash plate compressor equipped with a bellows that expands and contracts based on the pressure difference between the atmospheric pressure and the suction chamber, the discharge temperature is detected in the first passage, and the temperature reaches the transition point. A oscillating swash plate type compressor, characterized in that a spring made of a shape memory alloy is interposed, which is capable of applying a pressing force to the ball against the pushing force of the bellows until the ball falls below the pushing force of the bellows. Compression capacity variable mechanism.