Patent ID: 6454538
Filing Date: 2002-09-24
Classification: F04C

Abstract:
A scroll compressor comprising:a first scroll member having a base and a generally spiral wrap extending from said base; a second scroll member having a base and a generally spiral wrap extending from said base, said spiral wraps of said first and second scroll members interfitting to define compression chambers, and said first scroll member having a discharge port for communicating with a discharge chamber defined by a sealed housing; said second scroll member being driven to orbit by an electric motor, and orbiting movement of said second scroll member relative to said first scroll member causing said compression chambers to decrease in volume, compressing an entrapped refrigerant; said sealed housing defining both a discharge pressure chamber on one side of said first scroll member and a suction pressure chamber on an opposed side of said first scroll member; a motor protector for sensing temperature, and stopping operation of said motor if said sensed temperature exceeds a predetermined maximum, said motor protector being positioned within a chamber in a rear face of said base of said first scroll member, said chamber being isolated from said discharge port; a pressure relief valve communicating said discharge chamber into said motor protector chamber; and a port extending through said first scroll member, electric wires connecting said motor protector to said motor and extending through said port, and said suction chamber communicating with said motor protector chamber through said port.