Variable displacement type compressor

Details Variable displacement type compressor Variable displacement type compressor

F - Mech Eng,Light,Heat,Weapons

04

B

230/77

F04B 1/26 (2006.01) F04B 27/18 (2006.01)

Patent

CA 1331752

ABSTRACT OF THE DISCLOSURE A variable displacement type compressor includes a casing having a working chamber internally defined therein and a plurality of cylinder bores provided therein and opened to face to the working chamber. A driving shaft is rotatably carried in the casing with the cylinder bores disposed around the driving shaft. A working piston is slidably received in each of the cylinder bores. A sleeve is axially slidably fitted over the driving shaft within the working chamber. A holder is carried on the sleeve for swinging movement about an axis perpendicular to an axis of the driving shaft and is connected to the driving shaft. A swingable swash plate carried on the holder and connected to the working pistons through connecting rods. A control piston is connected to the sleeve and slidably received in the casing so as to vary the angle of inclination of the holder and the swingable swash plate to vary the operation stroke of the working pistons. A stroke detecting device detects the operation stroke of the working pistons and includes an interlocking member supported at a middle portion on the casing through a support shaft having an axis perpendicular to the axis of the driving shaft and connected at one end thereof to the control piston, and a position detector disposed on the casing to detect the position of the other end of the interlocking member. The control piston can be relatively rotatably connected to the sleeve to inhibit the transmission of the rotating movement of the sleeve about the axis of the driving shaft. The position detector is disposed outside the casing.

604600

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