VARIABLE DISPLACEMENT TYPE SWASH PLATE COMPRESSOR
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United States of America Patent
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app pub date -
Nov 3, 2017
filing date -
Nov 7, 2016
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Abstract
A variable displacement swash plate type compressor includes a crank chamber, a suction chamber, a drive shaft, a swash plate, and a bleeding passage connecting the crank chamber and the suction chamber. The bleeding passage has an axial passage and first and second radial passages in the drive shaft. The second radial passage opens on an outer peripheral surface of the drive shaft at a position that is closer to the swash plate than the first radial passage. The first radial passage is in constant communication with the crank chamber. The drive shaft has a valve member that is movable in the axial direction with the swash plate. The second radial passage is connected to the crank chamber when the swash plate is at maximum or minimum inclination angles and disconnected from the crank chamber by the valve member when the swash plate is at an intermediate inclination angle.
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