JPH03112582U

JPH03112582U -

Info

Publication number: JPH03112582U
Application number: JP2169290U
Authority: JP
Priority date: 1990-03-02
Filing date: 1990-03-02
Publication date: 1991-11-18

Description

[Brief explanation of drawings]

第１図はこの考案を具体化した可変容量圧縮機
の断面図、第２図ａ，ｂは皿バネの断面図及び正
面図、第３図ａ，ｂ及び第４図ａ，ｂはそれぞれ
皿バネの変形例を示す断面図及び正面図、第５図
は別例を示す断面図、第６図は従来の可変容量圧
縮機の断面図である。１……シリンダブロツク、１ａ……シリンダボ
ア、２……フロントハウジング、４……リヤハウ
ジング、５……バルブプレート、８……駆動軸、
９……回転体、１４……揺動斜板、１７……ピス
トン、２２……スラストベアリング、３０……ス
ラストレース、３１……皿バネ、３２……スペー
サ、４０……ケーシング。 Figure 1 is a sectional view of a variable displacement compressor that embodies this invention, Figures 2a and b are sectional views and front views of a disc spring, and Figures 3a and b and 4a and b are disc springs, respectively. FIG. 5 is a cross-sectional view showing another example, and FIG. 6 is a cross-sectional view of a conventional variable displacement compressor. 1... Cylinder block, 1a... Cylinder bore, 2... Front housing, 4... Rear housing, 5... Valve plate, 8... Drive shaft,
9... Rotating body, 14... Rocking swash plate, 17... Piston, 22... Thrust bearing, 30... Thrust race, 31... Belleville spring, 32... Spacer, 40... Casing.

Claims

[Claims for Utility Model Registration] A drive shaft is rotatably supported in a casing, a piston is housed in a cylinder bore formed in the casing, and a piston is mounted on the drive shaft to convert the rotation of the drive shaft into reciprocating motion. , a swash plate is provided for transmitting the reciprocating motion to the piston via the piston rod, and by changing the inclination angle of the swash plate with respect to the drive shaft, the stroke of the piston can be changed and the compression capacity can be changed. In the variable displacement compressor, a thrust bearing is interposed between the end surface of the rotating body fixed to one end of the drive shaft and the inner surface of the casing, and a thrust bearing is inserted into the casing at the other end of the drive shaft. A thrust race that engages with the end surface of the drive shaft and a disc spring that elastically engages with the thrust race are interposed between the provided valve plate and the end face of the drive shaft. A variable capacity compressor that applies a pressing force to the drive shaft in the direction of the thrust bearing by pressing against the force.