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公开(公告)号：US20230243312A1
公开(公告)日：2023-08-03
申请号：US18002315
申请日：2021-07-06
申请人： HITACHI ASTEMO, LTD.
IPC分类号： F02D9/10
CPC分类号： F02D9/1065
摘要： Provided is an electronically controlled throttle device configured to reduce size of a motor and concurrently to enhance reduction of a noise of the motor. The electronically controlled throttle device includes: a body including a throttle valve; a motor provided with a brush, the motor configured to drive the throttle valve; a bracket (20F) configured to attach the motor to the body; a pigtail connected electrically to the brush, and arranged on a surface of the bracket (20F), the surface facing the motor; and a filter circuit (an inductor (31), a capacitor (32), and a resistor (33)) connected electrically to the pigtail and configured to reduce the noise of the motor. The filter circuit is arranged on a surface of the bracket (20F), the surface opposite the motor.
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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.
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.
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