Title:
ELECTRIC VALVE
Document Type and Number:
WIPO Patent Application WO/2023/274394
Kind Code:
A1
Abstract:
An electric valve, comprising a valve core (4). The valve core (4) is provided with a first opening (410), a second opening (420) and a channel, wherein the first opening (410) and the second opening (420) are staggered in an axial direction of the valve core (4); a throttling groove (440) is in communication with the first opening (410), the throttling groove (440) is recessed inward from an outer peripheral surface (40) of the valve core (4), and the throttling groove (440) extends from the first opening (410) along the outer peripheral surface (40) of the valve core (4). The first opening (410) and the second opening (420) are staggered in the axial direction of the valve core (4), so that sufficient space is reserved for the throttling groove (440), thus the throttling groove (440) can cover a relatively large range of the outer peripheral surface (40) of the valve core (4), and the larger the circumferential angle of the valve core (4) occupied by the throttling groove (440), the more gradual the change of the throttling area of the throttling groove (440) in a lengthwise direction of the throttling groove (440), and the better the linearity of a flow curve of the electric valve, which are beneficial to improving the control precision of the electric valve.
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Inventors:
CHEN HAITAO (CN)
BIAN QIKAI (CN)
ZHAO YANGJUN (CN)
BIAN QIKAI (CN)
ZHAO YANGJUN (CN)
Application Number:
PCT/CN2022/103264
Publication Date:
January 05, 2023
Filing Date:
July 01, 2022
Export Citation:
Assignee:
ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD (CN)
International Classes:
F16K11/083; F16K5/02; F16K5/04; F16K5/10; F16K11/085
Domestic Patent References:
| WO2020259380A1 | 2020-12-30 |
Foreign References:
| CN209041730U | 2019-06-28 | |||
| CN105065702A | 2015-11-18 | |||
| CN105299263A | 2016-02-03 | |||
| CN103423480A | 2013-12-04 | |||
| CN101135395A | 2008-03-05 | |||
| CN1959165A | 2007-05-09 | |||
| JP2012117764A | 2012-06-21 | |||
| US20190049021A1 | 2019-02-14 | |||
| US20070044856A1 | 2007-03-01 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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