Patent ID: 7566210
Filing Date: 2009-07-28
Classification: F04C,Y10S

Abstract:
1. A compressor comprising: a shell; a discharge chamber defined within said shell and operating at a first pressure; an intake chamber defined within said shell and operating at a second pressure; a compression mechanism disposed within said intake chamber configured to move a fluid from said intake chamber to said discharge chamber; a crankshaft disposed within said intake chamber and drivingly engaged with said compression mechanism; a partition within said shell separating said discharge chamber from said intake chamber; two bearing housings disposed within said intake chamber and each rotatably supporting different portions of said crankshaft, a first one of said bearing housings supporting a proximal end portion of said crankshaft adjacent said compression mechanism, and a second one of said bearing housings supporting a distal end portion of said crankshaft; and a closed lubricant passageway contained in said shell and having first and second ends such that lubricant in said lubricant passageway only enters and exits said lubricant passageway through said first and second ends, said lubricant passageway extending from said discharge chamber into said second bearing housing with said first end disposed in said discharge chamber and said second end disposed in said second bearing housing, said lubricant passageway thereby providing direct fluid communication between said discharge chamber and said second bearing housing with lubricant therein flowing from said discharge chamber directly to said second bearing housing, and said lubricant passageway being exterior to said compression mechanism and passing through said partition.