Trans-critical vapor cycle system with improved heat rejection
US10288325B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 15, 2015 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | May 13, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/50
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A cooling system for an aircraft includes an air intake, an expansion device, and an evaporator. A first heat exchanger receives air passing into the air intake when the aircraft is operating at elevation, and receives the refrigerant from a first compressor at a first pressure. A second compressor receives the refrigerant from the first heat exchanger and compresses the refrigerant to a second pressure that is greater than the first pressure. A second heat exchanger receives the refrigerant from the second compressor. The first and second compressors are configured the first and second compressors are configured to operate at pressures that avoid temperature differences between the refrigerant and the air within each of the first and second heat exchangers below a set restriction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.