Electronic expansion valve
US11333415B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 2019 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Mar 22, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An electronic expansion valve is provided, including: a valve body, a rotor assembly, a support frame, a core assembly including a nut. The valve body forms a valve cavity and is provided with a valve port, and the rotor assembly includes a rotor and a screw shaft, and the screw shaft is fixedly connected to a bearing and is provided with a male thread portion, and the support frame is fixedly connected to the valve body directly or indirectly, and is provided with a mounting hole that corresponds to the bearing; and the nut has a female thread portion cooperating with the male thread portion, and the core assembly, by means of the cooperation between the male thread portion and the female thread portion, is axially moved up and down to move towards or away from the valve port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.