Liquid galley refrigeration system for aircraft
US6880351B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2001 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Sep 5, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2400/38
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The liquid galley refrigeration system for cooling food carts for aircraft employs an intermediate working fluid to transfer heat from one or more food carts to one or more remote chillers, allowing the carts and chillers to be advantageously distributed in the aircraft. A plurality of heat exchanges effect a cooling of the carts wherein heat from the food cart is first transferred to a first airflow; heat from the first airflow is then transferred to an intermediate working fluid that is circulated between a location immediately adjacent the food carts and a remote chiller; heat from the intermediate working fluid is subsequently transferred to the chiller working fluid; and finally, heat from the chiller working fluid is expelled. While the chiller working fluid undergoes a phase change in order to transfer heat from the intermediate working fluid to the cooling air, the intermediate working fluid remains in its liquid phase throughout its circulation. A recirculation pump circulates the intermediate working fluid through a distribution system that may link a plurality of chillers to a plurality of food carts, and the temperature of the food carts is regulated by a combination of…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.