Method and device for high side pressure regulation in transcritical vapor compression cycle
US5245836A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 1991 |
| Grant date | Sep 21, 1993 |
| Priority date | — |
| Expiry date | Jul 2, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2600/2501
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
High side pressure in a transcritical vapor compression cycle system is regulated by varying a liquid inventory of a low pressure refrigerant receiver provided in a circuit of the system. The circuit includes a compressor, a gas cooler, a throttling valve, an evaporator and the receiver connected in series in a closed circuit operating at supercritical pressure in a high pressure side of the circuit. The degree of opening of the throttling valve is controlled to regulate the high side pressure in the circuit. It is possible to control capacity, and it also is possible to achieve minimum energy consumption for a given capacity requirement by regulating high side pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.