Heat pump-refrigeration system with water injection and regenerative heat exchanger
US4017285A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1975 |
| Grant date | Apr 12, 1977 |
| Priority date | — |
| Expiry date | Oct 30, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/52
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An air conditioning system for a living space capable of operating as a heat pump or refrigerator employing a unitary compressor and expander having a common rotor with vanes defining enclosed compartments for positive compression of air in the compressor and positive expansion of air in the expander. A regenerative heat exchanger having thermally coupled air passages is employed in the system together with a non-regenerative primary heat exchanger which is located in the warm space. Air from the cool space is heated in the first passage of the regenerative heat exchanger, and moisture is injected, following which the air passes into the compressor inlet port. From the compressor outlet port wet air flows at high temperature and pressure to the primary heat exchanger located in the warm space where some of its heat is given up. Next the air flows through the second passage in the regenerative heat exchanger where its temperature is further lowered prior to being fed to the expander inlet port. Air from the expander outlet port, at low temperature and at atmospheric pressure, is discharged into the cool space, the net result being to increase the temperature differential between the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.