Motor-operated selector valve and refrigeration cycle device for refrigerators
US8091380B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2008 |
| Grant date | Jan 10, 2012 |
| Priority date | — |
| Expiry date | Sep 30, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86743
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A motor-operated selector valve relating to refrigerating technology is provided. In the present invention, a slider is controlled by a stepper motor so as to be rotatablely displaced among four positions on a flat bottom surface of a valve seat. Three outlets on the flat bottom surface are communicated with a normal open inlet in the valve seat via flow-guiding orifices in the slider respectively. In the first working position, the first outlet and the third outlet are in communication with the normal open inlet at the same time; in the second working position, the second outlet is in communication with the normal open inlet; in the third working position, the third outlet is in communication with the normal open inlet; in the fourth working position, the first outlet is in communication with the normal open inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.