Expander driven motor for auxiliary machinery
US6647742B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | May 29, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/141
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The expansion of a high pressure or intermediate pressure refrigerant in an expansion device in a transcritical vapor compression system converts the potential energy into usable kinetic energy. The kinetic energy provides work which is employed to fully or partially drive an expansion motor unit which is coupled to rotating auxiliary machinery. By providing work to the rotating auxiliary machinery, system efficiency is improved. The auxiliary rotating machinery can be an evaporator fan or a gas cooler fan to pull the refrigerant through the evaporator and gas cooler, respectively. Alternatively, the auxiliary rotating machinery can be a water pump or an oil pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.