CAMSHAFT, CAM ANGLE DETECTION DEVICE, AND INTERNAL COMBUSTION ENGINE

摘要

A camshaft includes a sensor rotor and a plurality of cams. The sensor rotor includes a base circle, and a projection portion formed on an outer peripheral surface of the base circle. A long diameter part of that one of the plurality of cams which is closest to the sensor rotor is placed within a region sandwiched between a first virtual line extending from the shaft center of the camshaft and a second virtual line extending from the shaft center of the camshaft in an axial view of the camshaft, the first virtual line passes through one circumferential end of the projection portion of the sensor rotor in an axial view of the camshaft, and the second virtual line passes through the other circumferential end of the projection portion of the sensor rotor in an axial view, of the camshaft.

主权项

1. A camshaft comprising:
a sensor rotor including a base circle, and a projection portion formed on an outer peripheral surface of the base circle so as to be detected by a cam angle sensor; and a plurality of cams each having a nose including a long diameter part configured such that its radial length from a shaft center of the camshaft is longer than a radius of the base circle of the sensor rotor, wherein the long diameter part of that one of the plurality of cams which is closest to the sensor rotor is placed within a region sandwiched between a first virtual line extending from the shaft center of the camshaft and a second virtual line extending from the shaft center of the camshaft in an axial view of the camshaft, the first virtual line passes through one circumferential end of the projection portion of the sensor rotor in the axial view of the camshaft, and the second virtual line passes through the other circumferential end of the projection portion of the sensor rotor in the axial view of the camshaft.