Title:
MAIN VALVE SEAT AND FOUR-WAY VALVE
Document Type and Number:
WIPO Patent Application WO/2023/083022
Kind Code:
A1
Abstract:
Disclosed is a main valve seat. In a radial section of the main valve seat (10), the main valve seat comprises a first straight edge (11), an arc edge (12), a second straight edge (13) and a bottom edge (14), wherein two ends of the arc edge are respectively connected to one end of the first straight edge and one end of the second straight edge; two ends of the bottom edge are respectively connected to the other end of the first straight edge and the other end of the second straight edge; the first straight edge and the second straight edge are located inside a circle where the arc edge is located; an inner angle between the first straight edge and the bottom edge is α, an inner angle between the second straight edge and the bottom edge is β, wherein α is less than 90°, and β is less than 90°. Further disclosed is a four-way valve. On the premise that the other dimensions of the main valve seat, such as the height of the main valve seat and the radius and the length of the arc edge, are the same, the inner angle α is less than 90°, β is less than 90°, and in such an arrangement, compared with both the inner angle α and the inner angle β being greater than or equal to 90°in the prior art, the length of the bottom edge is increased, therefore the utilization rate of materials of the main valve seat is increased, and the machining cost is reduced. In addition, the adjustability of the main valve seat is improved.
Inventors:
XUAN QIJIE (CN)
ZHANG FEI (CN)
DU FEILONG (CN)
ZHANG FEI (CN)
DU FEILONG (CN)
Application Number:
PCT/CN2022/128314
Publication Date:
May 19, 2023
Filing Date:
October 28, 2022
Export Citation:
Assignee:
ZHEJIANG DUNAN ARTIFICIAL ENV CO LTD (CN)
International Classes:
F16K51/00
Foreign References:
| CN216479264U | 2022-05-10 | |||
| CN102052481A | 2011-05-11 | |||
| CN205207834U | 2016-05-04 | |||
| CN108930816A | 2018-12-04 | |||
| CN201412575Y | 2010-02-24 | |||
| JPH02299769A | 1990-12-12 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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