Patent ID: 7021425
Filing Date: 2006-04-04
Classification: F04B

Abstract:
1. A sealed electric compressor comprising: an enclosed container in which a pool of refrigerator lubricant is provided; a motor element located in said enclosed container; a crank shaft driven by said motor element, said crank shaft rotating about a main axis including a main shaft portion and an eccentric shaft portion, said eccentric shaft portion having a lubricant aperture provided therein and being joined to said main shaft portion; and an oil pickup tube having an open end communicating to said lubricant aperture of said crank shaft and another open end in said pool of said refrigerator lubricant, said oil pickup tube rotated by said crank shaft as said crank shaft is driven by said motor element, wherein said oil pickup tube comprises a first centrifugal pumping portion having a first central axis and a second centrifugal pumping portion having a second central axis located beneath said first centrifugal pumping portion, wherein an angle between said first central axis and said main axis is greater than zero, wherein an angle between said second central axis and said main axis is greater than zero, and wherein said angle between said first central axis and the second central axis is greater than said angle between said second central axis and said main axis.