Sensing refrigerant temperature in a thermostatic expansion valve
US5100245A · kind A · utility
2Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1990 |
| Grant date | Mar 31, 1992 |
| Priority date | — |
| Expiry date | Nov 26, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2341/0683
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A mechanical refrigerant thermal expansion valve has a sensing port sealed with a cupped shaped closure received therein and sealed about the cup rim. A cover assembly is removably 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.