Title:
PUMP-TYPE MAGNETORHEOLOGICAL FLUID RETARDER
Document Type and Number:
WIPO Patent Application WO/2021/164090
Kind Code:
A1
Abstract:
A pump-type magnetorheological fluid retarder. A retarder shaft (2) and a pump form a torque resistant-type drive connection; a steel plate (12) is mounted within a retarder body (3) and separates the retarder body (3) into a left side high/low pressure area through channel and a right side working cavity; a magnetizable material silicon steel plate (20) and a working magnetism coil (14) are mounted on the working cavity side; the pump is mounted within the right side working cavity where the retarder body (3) and the steel plate (12) are separated; the working cavity and the high/low pressure area through channel are filled with a working medium magnetorheological fluid; a magnetorheological fluid valve (17) is arranged within a left side through channel of a high pressure area steel plate hole of the steel plate (12). Within a working temperature range, the viscosity of the magnetorheological fluid under the action of a magnetic field is less affected by temperature, and is proportional to the strength of the magnetic field, having superior controllability, where a greatest braking force is controllable and can be far greater than common hydraulic retarders, the braking force is steady, the same braking force can also be produced at low rotational speeds, and necessary speed retarding braking force can be produced at any vehicular speed, not only for use on long declines of mountainous roads, but also having broad use in cities for vehicles requiring frequent deceleration; the present invention can replace main braking to implement braking, and greatly reduces the use frequency of a main braking device.
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Inventors:
ZHEN XIAOYI (CN)
EANG WENHUI (CN)
CHEN YONGXIANG (CN)
SHEN DONGPING (CN)
GAO FENGCAI (CN)
LIU JIAMING (CN)
ZHENG LU (CN)
EANG WENHUI (CN)
CHEN YONGXIANG (CN)
SHEN DONGPING (CN)
GAO FENGCAI (CN)
LIU JIAMING (CN)
ZHENG LU (CN)
Application Number:
PCT/CN2020/080368
Publication Date:
August 26, 2021
Filing Date:
March 20, 2020
Export Citation:
Assignee:
FAWER AUTOMOTIVE PARTS LTD COMPARTY (CN)
International Classes:
F16D57/00; F16D57/06
Foreign References:
| CN110792704A | 2020-02-14 | |||
| CN208619558U | 2019-03-19 | |||
| CN206647459U | 2017-11-17 | |||
| CN108506376A | 2018-09-07 | |||
| KR20150011678A | 2015-02-02 | |||
| US20150129379A1 | 2015-05-14 |
Attorney, Agent or Firm:
JILIN CHANGCHUN NEW CENTURY PATENT AGENT LTD. (CN)
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