Patent ID: 7654804

Claim:
A fluid displacement apparatus comprising: a housing including a chamber formed therein for receiving a refrigerant, and including an opening formed therein and communicating with said chamber of said housing, and including a casing having a compartment formed in said casing, and including a passage formed in said housing and communicating with said compartment and said chamber of said housing, said casing including an opening formed therein, a driving shaft rotatably received in said opening of said housing, a fixed scroll disposed in said chamber of said housing, an orbiting scroll rotatably received and engaged in said chamber of said housing and interfitting with said fixed scroll for compressing the refrigerant and for generating a pressurized refrigerant, a pressure sensing device engaged through said opening of said casing and disposed in said compartment of said housing for sensing a pressure of the pressurized refrigerant, and a sealing ring engaged between said pressure sensing device and said casing.