Patent ID: 9447786
Filing Date: 2016-09-20
CPC Classification: F01C,F04B,F04C,F16N

Claim Text:
1. A compressor comprising: a compression mechanism; and a drive shaft arranged and configured to drive the compression mechanism, the drive shaft having an oil supply hole opened through an outer peripheral surface of the drive shaft to supply oil to a bearing surface of the drive shaft, an oil discharge passage communicating with the oil supply hole being formed by a flat surface or a recessed surface at a portion of the outer peripheral surface of the drive shaft, a trailing edge of the oil discharge passage being displaced behind a trailing edge of the oil supply hole with respect to a rotation direction of the drive shaft, the trailing edges of the oil discharge passage and the oil supply hole being both located with respect to the rotation direction of the drive shaft, a leading edge of the oil discharge passage being displaced behind a leading edge of the oil supply hole with respect to the rotation direction of the drive shaft, the leading edges of the oil discharge passage and the oil supply hole being both located with respect to the rotation direction of the drive shaft, and the oil discharge passage being formed to have a width that is less than or equal to a diameter of the oil supply hole.