Patent ID: 8973559
Filing Date: 2015-03-10
Classification: F02M,Y10T

Abstract:
1. A gear subassembly for an exhaust gas recirculation (EGR) system including: an EGR valve; and a rotatable shaft provided for the EGR valve, the gear subassembly comprising: a gear that is a part of reduction gears and that is fastened to the rotatable shaft located at a rotation center of the gear to rotate therearound; a cam that is fastened to the gear and is a part of a link mechanism; and a plurality of screws, wherein: the gear includes a metal shaft-fastening part used for fastening the gear to the rotatable shaft, and a plurality of metal cam-fastening parts used for fastening the gear to the cam; a first fitting hole and a plurality of second fitting holes, wherein: the first fitting hole is arranged at the rotation center of the gear and is configured to receive the metal shaft fastening part and the rotatable shaft; the plurality of second fitting holes are arranged between the rotation center of the gear and a gear tooth and are configured to receive the plurality of metal cam fastening parts; the gear is formed by resin-molding with the shaft-fastening part and the plurality of cam-fastening parts serving as insert parts inserted into the gear; and the gear and the cam are integrated by fastening via the plurality of screws through the plurality of cam-fastening parts, which is inserted in the gear.