Patent ID: 6648607
Filing Date: 2003-11-18
Classification: F04C

Abstract:
A scroll compressor comprising:a compressor pump unit having 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 a crankcase for supporting said second scroll member; a shaft for driving said second scroll member to orbit relative to said first scroll member, and compression chambers between said wraps of said first and second scroll member decreasing in size as said second scroll member orbits to compress an entrapped refrigerant; a motor for driving a shaft to cause said second scroll member to orbit, said motor having a rotor and a stator, and a motor protector associated with said motor stator, said motor protector being operable to stop further operation of said motor; an oil return passage for passing lubricant over a heating portion of said compressor pump unit, said oil return passage being positioned to return lubricant from said heating portion of said compressor pump unit to an outlet for passing lubricant into a reservoir surrounding said motor protector, said reservoir maintaining contact between lubricant and said motor protector; said motor stator having a first end spaced toward said compressor pump unit and a second end spaced on an opposed side of said first end relative to said compressor pump unit, said motor protector being at said first end of said motor stator with said reservoir also being at said first end of said motor stator.