公开(公告)号：US10364756B2

公开(公告)日：2019-07-30

申请号：US15763287

申请日：2016-09-07

Applicant: DENSO CORPORATION

Inventor： Satoru Hiramoto ,  Osamu Shimane ,  Ju Hwan Bae

IPC: F02D9/10 ,  F16K1/22

Abstract: A fixing shaft portion of a valve shaft is fixed to a throttle valve at first and second locations by first and second fixing members. A first bearing includes an inner race fixed to a first rotatable shaft portion of the valve shaft, and an outer race fixed to a valve body. A second bearing includes a slidable portion axially slidably fitted to a second rotatable shaft portion of the valve shaft and a fixing portion fixed to the valve body. A linear expansion coefficient of the throttle valve and a linear expansion coefficient of the valve body are set to be larger than a linear expansion coefficient of the valve shaft in an axial direction. A first distance measured from a center point of the throttle valve to the first location is larger than a second distance measured from the center point to the second location.