Patent ID: 6976559

Claim:
A hermetically enclosed refrigerant compressor comprising: a compressor block having a bore extending therethrough; a crank shaft positioned for rotation in the bore, the crank shaft defining an eccentric crank pin at one end thereof; the crank shaft and crank pin cooperating to define an oil channel arrangement; a connecting rod attached at one end to a bearing element such that there is no relative motion between the bearing element and the connecting rod, the connecting rod having a passage extending therethrough and in communication with a channel formed by the cooperation of the connecting rod and the bearing element, the bearing element being formed as a single piece having a substantially cylindrical shape and the channel extending completely around a circumference of the bearing element; the crank pin extending into the bearing element and being positioned for rotation relative thereto; and a control arrangement providing communication between the channel and the oil channel arrangement, at least once per revolution of the crank pin.