Patent ID: 6684979
Filing Date: 2004-02-03
Classification: F04B,F04C

Abstract:
A hermetic motor-driven compressor having a compression component and a motor drive component supported through an elastic support arrangement within a hermetically sealed enclosure, wherein the compression component comprises:a crankshaft having an eccentric portion and adapted to be rotatively driven by the motor drive component; and an oil feed pipe disposed at a lower end portion of said eccentric portion of said crankshaft so as to perform a centrifugal pumping action, said oil feed pipe being arranged to open into a refrigerating machine oil portion of the hermetically sealed enclosure so as to open into refrigerating machine oil held in the refrigerating machine oil portion of the hermetically sealed enclosure and so as to be rotated by said crankshaft; wherein said oil feed pipe is made of synthetic resin; wherein said oil feed pipe is joined to said lower end portion of said crankshaft through an interposition member made of synthetic resin; and wherein said interposition member is a separate and discrete member from said oil feed pipe.