CAM SHAFT SPROCKET STRUCTURE FOR AUTOMOBILE,申请号KR20050120352-传众专利搜索

CAM SHAFT SPROCKET STRUCTURE FOR AUTOMOBILE

申请公布号：KR20070060598(A)

申请号：KR20050120352

申请日期：2005.12.09

申请公布日期：2007.06.13

申请人：

HYUNDAI MOTOR COMPANY

发明人：KANG, BONG SEONG

分类号：F16H55/30

主分类号：F16H55/30

摘要：A variable diameter type cam shaft sprocket structure of an automobile is provided to prevent noise due to friction of a cam shaft by forming constantly a plurality of sections in a periphery of a cavity part of a sprocket unit. A sprocket unit(10) includes a plurality of sections(11) separated from each other at the same interval around a center of a cam shaft(2). A diaphragm(40) formed with a ring-shaped rubber tube is installed in a cavity part(12) of the diaphragm. A protrusion(13) is formed at each of the sections of the sprocket unit. A guiding groove part(23a,23b) is formed at a periphery of the protrusion. A pair of disk-shaped plate parts(20a,20b) are coupled along the guiding groove part. A fixing unit(30) fixes the sprocket unit and the plate parts to the cam shaft.