Title:
ELECTRONIC EXPANSION VALVE AND COOLING SYSTEM HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2019/109932
Kind Code:
A1
Abstract:
An electronic expansion valve and a cooling system having the same are provided. The electronic expansion valve comprises: a valve body portion (2), comprising a valve seat (23), wherein the valve seat (23) is provided with a first valve port portion (23a); and a valve spindle portion (22), wherein one end of the valve spindle portion is fixedly connected to a valve stem (20), the other end of the valve spindle portion is provided with a recessed portion (22a), and a seal member (25) is provided in the recessed portion (22a), and moves in the recessed portion (22a) and vertically along an inner wall of the recessed portion (22a). A first valve spindle (25a) is formed at a bottom end of the seal member (25). A high-volume flow adjustment portion is formed between the first valve spindle (25a) and the first valve port portion (23a). The seal member (25) is further provided with a second valve port portion (25b), the valve spindle portion (22) is provided with a second valve spindle (22b), and a low-volume flow adjustment portion is formed between the second valve spindle (22b) and the second valve port portion (25b).
Inventors:
WANG YUDONG (CN)
Application Number:
PCT/CN2018/119301
Publication Date:
June 13, 2019
Filing Date:
December 05, 2018
Export Citation:
Assignee:
ZHEJIANG SANHUA INTELLIGENT CONTROLS CO LTD (CN)
International Classes:
F16K1/36; F16K1/46; F16K1/48; F16K31/06; F16K31/50; F16K47/02
Foreign References:
| CN102042416A | 2011-05-04 | |||
| US20160131403A1 | 2016-05-12 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
Download PDF:
Previous Patent: OIL AND FAT COMPOSITION FOR FILLING AND SAUCE
Next Patent: ADAPTER DEVICE, MULTI-DEVICE DETECTION SYSTEM AND DETECTION METHOD THEREOF
Next Patent: ADAPTER DEVICE, MULTI-DEVICE DETECTION SYSTEM AND DETECTION METHOD THEREOF