Title:
ELECTRONICALLY CONTROLLED THROTTLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/009895
Kind Code:
A1
Abstract:
Provided is an electronically controlled throttle device that can further reduce motor noise while reducing motor size. This electronically controlled throttle device comprises: a body having a throttle valve; a motor which drives the throttle valve and is equipped with a brush; a bracket (20F) for attaching the motor to the body; a pigtail which is electronically connected to the brush and provided to a surface of the bracket (20F) on the motor side; and a filter circuit (inductor (31), capacitor (32), resistor (33)) which is electronically connected to the pigtail and reduces motor noise. The filter circuit is provided on a surface of the bracket (20F) on the opposite side to the motor.
Inventors:
HATSUZAWA HIDEFUMI (JP)
TANAKA TAKUYA (JP)
SAITO TAKAFUMI (JP)
TANAKA TAKUYA (JP)
SAITO TAKAFUMI (JP)
Application Number:
PCT/JP2021/025497
Publication Date:
January 13, 2022
Filing Date:
July 06, 2021
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F02D9/02; H02K23/66
Foreign References:
| JP2003189542A | 2003-07-04 | |||
| JP2002315274A | 2002-10-25 | |||
| JP2000184661A | 2000-06-30 | |||
| JP2013155650A | 2013-08-15 | |||
| JP2017208947A | 2017-11-24 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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