Electronic expansion valve
US10670011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2016 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Sep 15, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electronic expansion valve includes a valve seat component, including a valve seat and a valve core seat; and a valve rod component, capable of axially moving along a core cavity of the valve core seat to open or close a valve port. The valve rod component is provided with an axial through hole communicated with the valve port and a sealing surface capable of being adhered to and sealing the valve port. The valve rod component includes a valve rod and a valve core fixedly disposed at a lower end of the valve rod. The valve rod is a cylindrical body, including a small-diameter cylinder body and a large-diameter cylinder body close to the valve port. A first gap is provided between the large-diameter cylinder body and the valve core seat, and a second gap is provided between the valve core and the valve port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.