Patent ID: 6164929
Filing Date: 2000-12-26
Classification: F04B

Abstract:
A refrigerant compressor comprising:a housing means accommodating a compression mechanism therein;a drive shaft rotatably supported by said housing means and having an axial inner portion extending through said housing means and an axial outer portion extending outward from said housing means, said axial inner portion being operatively connected to said compression mechanism, and said axial outer portion receiving a drive power from an external drive power source;a shaft-seal element provided to be in constant contact with an outer circumference of said drive shaft for sealing said drive shaft with respect to an interior of said housing means;a rotary drive-power transmission means having a rotary hub-like plate fixed to a part of said axial outer portion of said drive shaft, a rotor element driven for rotation by said external drive power source, and a deformable member interposed between said rotary hub-like plate and said rotor element to perform a transmission controlling function to said rotor element in response to being deformed; anda cooling means for promoting heat dissipation from a drive power transmission unit disposed at a front end of said compressor during the rotation of said drive shaft, said cooling means comprising a heat radiating means formed on said rotary hub-like plate for radiating heat transmitted through said drive shaft.