Patent ID: 8955659
Filing Date: 2015-02-17
Classification: F01M,F16D,F16H

Abstract:
1. An internal combustion engine which includes: a plurality of hydraulic clutches, a plurality of oil pressure controlling valves for individually controlling an oil pressure for the hydraulic clutches, and a plurality of clutch oil pressure sensors for individually detecting a controlling oil pressure in a plurality of controlling oil supply paths interconnecting the oil pressure controlling valves and the hydraulic clutches, wherein the plurality of clutch oil pressure sensors are arranged adjacent to and parallel to each other, and each of the clutch oil pressure sensors has a longitudinal axis that is directed in a forward and backward direction of a saddle type vehicle when an engine main body is mounted on the vehicle, the internal combustion engine further comprising: an engine main body; a cover member covering each of the plurality of hydraulic clutches, and one of the controlling oil supply oil paths is formed in each the cover members, and wherein each of the plurality of oil pressure controlling valves corresponds to a different one of the plurality of hydraulic clutches, and each of the plurality of oil pressure controlling valves includes: each the of the plurality of oil pressure controlling valves is adapted to control the oil pressure of a corresponding one the hydraulic clutches and the plurality of controlling oil supply oil paths, wherein the engine main body further comprises: a partition member is interposed between the cover member and the valve housing of each of the plurality of oil pressure controlling valves, and controlling valve side supply oil paths, each of which includes a cover side supply oil path extending parallel to a linear axis of the oil pressure controlling valves, and wherein the controlling valve side supply oil path and the housing of each of the oil pressure controlling valves is on an opposite face side of the corresponding partition member, the engine main body further comprising: a support holder adjacent to the housing of each of the oil pressure controlling valves, each of the support holders being adapted to attach the corresponding oil pressure controlling valve to the cover member with the corresponding partition member sandwiched between the cover member and the support holder, wherein a face of each of the support holders includes grooves which cooperate with opposite faces of the corresponding partition member to configure the controlling each of valve side supply oil paths, wherein each of the support holders includes a semicircular arcuate portion disposed along a periphery of corresponding bolts of the engine, wherein each of the bolts is adapted to fasten the corresponding support holder to the cover member, in such a manner that the semicircular arcuate portion bypasses the bolt.