公开(公告)号：US20240218840A1

公开(公告)日：2024-07-04

申请号：US18557767

申请日：2022-02-02

申请人： Hitachi Astemo, Ltd.

发明人： Hidefumi HATSUZAWA ,  Hiroyuki OTA ,  Takuya TANAKA ,  Makoto KAWANO ,  Yoshihiko AKAGI

IPC分类号： F02D9/10 ,  F02D11/10

CPC分类号： F02D9/1035 ,  F02D11/10 ,  F02D2011/101

摘要： An object of the present application invention is to provide a throttle valve control device capable of effectively cooling a bearing of a throttle shaft while preventing an increase in size of a throttle body. Therefore, in a throttle valve control device in which flow paths 5T1 to 5T3 through which a heat exchange medium flows are formed in a throttle body 5, the diameter of a first bearing 8 of a throttle shaft 3 is greater than the diameter of a second bearing 9, the flow paths 5T1 to 5T3 are disposed along an outer periphery of an intake passage 1 to overlap with the second bearing 9 when viewed from a flow direction of the intake passage 1, and an inlet portion 5T1 and the outlet portion 5T3 of the flow paths 5T1 to 5T3 are disposed to sandwich the first bearing 8.