Multi-stage compression refrigerating device
US6568198B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2002 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Jan 10, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/13
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A multi-stage compression refrigeration apparatus (10) includes a compressor having a first stage low-pressure compression means (32) and a second stage high-pressure compression means (34), a condenser (1), a first decompression means (3), an intercooler (6), a second decompression means (7), and an evaporator (8). The refrigerant discharged from the condenser (1) is diverted into first and second parts, with the first part passed to the intercooler (6) via the first decompression means (3) while the second part is passed to the evaporator (8) via the second decompressor (7). The refrigerant passed to the second decompressor (7) undergoes heat exchange with the intercooler (6). The refrigerant discharged from the evaporator (8) is fed to the low-pressure compression means (32). The refrigerant discharged from the intercooler (6) is fed to the high-pressure compression means (34) together with the refrigerant discharged from the low-pressure compression means. The apparatus further comprises a second intercooler (5) downstream of the evaporator (8) so that the second diverted part of the refrigerant may undergo heat exchange in the intercooler (5) prior to entering the evaporator. …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.