Patent ID: 8967113
Filing Date: 2015-03-03
Classification: B60T,F01C,F01L,F02B,F04C,F04D

Abstract:
1. A vacuum pump mounting structure in which a vacuum pump is connected to an axial end portion of a first cam shaft of an engine and is configured to be driven by the first cam shaft, the vacuum pump mounting structure comprising: a cylinder head in which the first cam shaft is disposed; a cam housing rotatably supporting the first cam shaft on the cylinder head; a cover attached to an end face of the cylinder head and an end face of the cam housing from an opposite side to the cylinder head and the cam housing across the vacuum pump in a direction along the first cam shaft; a cam housing-side boss portion formed in the cam housing and in the vicinity of a joint portion between the cam housing and the cover, to which an engine-upper side of a body portion of the vacuum pump is fixed; and a cylinder head-side boss portion formed in the cylinder head and in the vicinity of a joint portion between the cylinder head and the cover, to which an engine-lower side of the body portion of the vacuum pump is fixed.