Sensing refrigerant temperature in a thermostatic expansion valve
USRE37423E · kind E · reissue
2Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1992 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Jun 26, 2012 |
Classification
- Technology area (CPC —)General
Abstract
A mechanical refrigerant thermal expansion valve has a sensing port scaled with a cupped shape closure received therein and sealed about the cup rim. A cover assembly is removeably attached to the valve over the cup with a thermistor extending into the cup which is filled with thermally conductive grease for thermal conductivity between the cup and the thermistor. The cover assembly has an electrical connector provided thereon. The thermistor is preferably mounted on printed circuit board potted in the cover which may include electronic signal logic and power switching circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.