Patent ID: 6334422
Filing Date: 2002-01-01
Classification: F01M

Abstract:
A lubricating oil feed passage structure for a crank shaft, comprising:a lubricating oil passage formed in the crank shaft having a crank pin with a connecting rod connectable thereto, said lubricating oil passage having an inlet end and an outlet end, said outlet end being open to a connection surface for connection with the connecting rod of the crank pin; a lubricating oil introducing member threadedly mounted at an end portion of the crank shaft so as to project in an axial direction of the crank shaft from an end face of the crank shaft end portion; and a lubricating oil introducing passage formed axially through said lubricating oil introducing member and connected to said inlet end, wherein said lubricating oil introducing member is a bolt which prevents a torque transfer member from moving in the axial direction of the crank shaft, said torque transfer member being mounted to said crank shaft end portion.