Patent ID: 9239054
Filing Date: 2016-01-19
CPC Classification: F04C

Claim Text:
1. A compressor comprising: a shell defining an internal cavity and an oil sump; a compression mechanism disposed within said shell; a motor coupled to a driveshaft for selectively powering said compression mechanism, said drive shaft includes a first end disposed proximate to said oil sump and a second end disposed proximate to said compression mechanism, said drive shaft operable to transport said oil from said oil sump to said second end; a pumping mechanism in fluid-pumping communication with said oil sump; and a first heat exchanger disposed external from said shell and in fluid communication with said pumping mechanism, said first heat exchanger cooling said oil prior to returning said cooled oil to said internal cavity; a bearing housing supporting said driveshaft and defining a counterweight cavity; and a counterweight fixed to said driveshaft proximate to said second end, said counterweight is rotatably received within said counterweight cavity, wherein said counterweight cooperates with said counterweight cavity to pump oil received from said oil sump to direct said oil into said first heat exchanger, wherein said bearing housing includes a lubricant inlet and a lubricant outlet extending radially outward from said counterweight cavity, said first heat exchanger receiving lubricant from said lubricant outlet and providing cooled lubricant to said lubricant inlet.