Discharge temperature sensor for sealed compressor
US6085530A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 7, 1998 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Dec 7, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2500/222
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A sensor is provided for monitoring temperatures within a discharge tube on a scroll compressor. If the temperature is too high, this is an indication of the loss of charge situation. When the temperature on the discharge tube exceeds the temperature indicative of a loss of charge, then the motor is stopped. In one embodiment, a heat fusible link melts when the temperature is exceeded and sends a signal to a control to stop the motor. A repair person must then visit the compressor and repair the compressor before it can be restarted. In this way, the system provides a very inexpensive control for eliminating operation of the compressor and its associated refrigeration system in a loss of charge situation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.