Patent ID: 7373914
Filing Date: 2008-05-20
Classification: F01M

Abstract:
1. A lubricating apparatus for an internal combustion engine, comprising: a tank body attached to an end face of an internal combustion engine crankcase; an oil pump case attached to an end face of the tank body, the oil pump case housing an oil pump; and a tank cover attached to the tank body, the tank cover covering the oil pump case; wherein an oil discharge passage extending from the oil pump is provided straddling the oil pump case and the tank body; a direction of extension of the oil discharge passage is changed in the tank body such that the oil discharge passage further extends, in the tank body, in parallel with a junction plane between the oil pump case and the tank body; an opening for pressure reception by relief valve is provided in the oil discharge passage portion extending in parallel with the junction plane; an inside end portion of the relief valve is fitted into the opening in a direction in which the oil pump case is attached; and by attaching the oil pump case such that an outside end portion of the relief valve is held by a portion of the oil pump case, the relief valve is fixed between the tank body and the oil pump case.