Title:
エンドカバーとこのエンドカバーを用いる四方切換弁
Document Type and Number:
Japanese Patent JP5303518
Kind Code:
B2
Abstract:
The present invention relates to a four-way reversing valve for refrigerating cycle system, in particular to an end cover for fitting with a valve body of a main valve of a four-way reversing valve, a four-way reversing valve using the same and an assembling method thereof. The end cover has a larger diameter section and a smaller diameter section sequentially provided in an axial direction, wherein an outer periphery of the larger diameter section of the end cover is adapted to be tightly connected with the valve body, and an end portion of the smaller diameter section of the end cover is adapted to be fitted with a piston of the main valve, so as to define an operating position of the piston, characterized in that the larger diameter section of the end cover has a frustum shape with a larger outer end and smaller inner end, or an end portion of the larger diameter section of the end cover has radially projected flange for abutting against and fitting with an end surface of the valve body. The present invention may meet the requirement for the position precision between the valve body and the end cover and improve the welding precision therebetween.
Inventors:
Jean, Guo Dong
Hoang, Songyang
Hoang, Songyang
Application Number:
JP2010164902A
Publication Date:
October 02, 2013
Filing Date:
July 22, 2010
Export Citation:
Assignee:
Zhejiang Sanhua Climate & Appliance Controls Group Co.,Ltd.
International Classes:
F16K27/00; F16K27/10; F25B41/04
Domestic Patent References:
| JP2005121131A | ||||
| JP2299769A | ||||
| JP2007211814A | ||||
| JP4068972U | ||||
| JP4004568U |
Attorney, Agent or Firm:
Eiichi Maruyama