Patent ID: 6688432
Filing Date: 2004-02-10
Classification: F04B

Abstract:
A piston compressor comprising:a housing; a motor positioned in the housing, the motor having a crankshaft coupled thereto; an eccentric crankpin extending from an end of the crank-shaft generally opposite the motor, the crankpin being adapted to engage a connecting rod; the crankshaft defining a first bore extending therethrough and in fluid communication with a second bore extending through the crankpin, the first and second bores being in fluid communication with one another and with an oil sump so that during operation of the compressor, oil is drawn from the sump through the first and second bores and out of an opening in the crankpin; a limiting arrangement in the form of a deflector plate coupled to the connecting rod adjacent the crankpin and opening, the deflector plate defining a top surface that only partially covers an end of the crankpin; and wherein said top surface of said deflector plate, said crank pin and said opening cooperate to allow oil to flow from said opening, past said top surface while selectively preventing the flow of oil from contacting a predetermined area of the piston compressor.