Patent ID: 9714589
Date: 2017-07-25
CPC Classifications: F01M,F04B,F16C

Claim:
1. A reciprocating compressor having a centrifugal oil pump, the reciprocating compressor comprising: a crankshaft comprising a main shaft connected to an eccentric pin and a lubricating hole extending linearly from a cylindrical surface of the eccentric pin to a cylindrical surface of a body of the main shaft, wherein the lubricating hole comprises a centerline contained on a plane (B-B), the plane (B-B) being parallel to, but not containing, a geometrical axis coincident with a center-line of the main shaft and the plane (B-B) being angularly displaced by an angle (B) relative to another plane (P) defined by the center-line of the main shaft and a centerline of the eccentric pin ensuring a radial depth (E) at or below 4.0 mm, wherein the radial depth (E) is measured from an inner surface of the lubricating hole relative to the cylindrical surface of the body of the main shaft, and wherein the main shaft is directly connected to the eccentric pin by a peripheral flange.