Title:
PILOT VALVE AND FOUR-WAY REVERSING VALVE
Document Type and Number:
WIPO Patent Application WO/2020/244559
Kind Code:
A3
Abstract:
A pilot valve, comprising: a valve body (10), wherein the valve body (10) is a cylinder formed by integral stretching and having an open end and a closed end, the closed end being a first end, the open end being a second end, the first end of the valve body (10) is provided with an inlet (11), the valve body is internally provided with a cavity (12), and the inlet (11) is in communication with the cavity (12); an inlet pipe (20) connected to the first end of the valve body (10), a pipe opening of the inlet pipe (20) being in communication with the inlet (11); and a limiting structure (30) provided between the first end of the valve body (10) and the inlet pipe (20), the limiting structure (30) being used for limiting a relative position of the inlet pipe (20) relative to the valve body (10). Also disclosed is a four-way reversing valve comprising the pilot valve. The present invention solves the problems of complex structure and high cost in the prior art.
Inventors:
CHEN JIANJUN (CN)
LIU HAIBO (CN)
SHAN YUKUAN (CN)
FU XIAOPING (CN)
LIU HAIBO (CN)
SHAN YUKUAN (CN)
FU XIAOPING (CN)
Application Number:
PCT/CN2020/094228
Publication Date:
January 21, 2021
Filing Date:
June 03, 2020
Export Citation:
Assignee:
ZHEJIANG DUNAN ARTIFICIAL ENV CO LTD (CN)
International Classes:
F16K27/08; F16K11/065
Foreign References:
| CN210423806U | 2020-04-28 | |||
| CN207880118U | 2018-09-18 | |||
| CN207880118U | 2018-09-18 | |||
| CN205136753U | 2016-04-06 | |||
| CN205001597U | 2016-01-27 | |||
| EP3339701A1 | 2018-06-27 | |||
| DE102008022339A1 | 2009-11-05 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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