Scroll type compressor with variable displacement mechanism

Details Scroll type compressor with variable displacement mechanism Scroll type compressor with variable displacement mechanism

Category

F - Mech Eng,Light,Heat,Weapons

Subcategory

04

Subsubcategory

C

IPC codes

F04C 18/02 (2006.01) F04C 21/00 (2006.01)

Type

Patent

Patent number

CA 2063148

Description

ABSTRACT OF THE DISCLOSURE A variable displacement mechanism for a scroll type compressor opens and closes a communication path between the suction chamber and a pair of intermediately located sealed spaces. The variable displacement mechanism includes a piston valve member slidably disposed within a cavity. The piston valve selectively opens and closes the communication path between the suction chamber and intermediately located sealed spaces. A conduit permanently links the discharge chamber to the upper end surface of the piston valve so that, even when the communication path is established, the upper end surface of the piston valve is constantly exposed to discharge pressure.

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