Electronic expansion valve
US8556229B2 · kind B2 · utility
12Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2010 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | May 7, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Embodiments of the invention provide an electronic expansion valve, including a magnetic rotor and a screw rod, and further including an output shaft. The magnetic rotor is surroundingly provided on the output shaft, and the output shaft is slidably connected to the screw rod in an axial direction and drivably connected to the screw rod in a circumferential direction. Since the output shaft is slidably connected to the screw rod in an axial direction and drivably connected to the screw rod in a circumferential direction, the magnetic rotor does not subject to an axial force transmitted by the screw rod and rotates flexibly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.