Electronic expansion valve and cooling system having same
US11168804B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2018 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Nov 30, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electronic expansion valve and a refrigeration system including the electronic expansion valve are provided. The electronic expansion valve includes a valve seat, a valve needle, a drive mechanism, a planetary gear deceleration mechanism. The drive mechanism serves as an input end of the planetary gear deceleration mechanism, the planetary gear deceleration mechanism has the output inner gear ring, the output inner gear ring is fixedly connected to a screw rod of the transmission mechanism to enable the screw rod to rotate, the screw rod is in threaded connection with a nut, to convert a rotation motion of the screw rod into a linear motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.