Joule-Thomson liquifier utilizing the Leidenfrost principle
US3990265A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 1975 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | May 2, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2309/022
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
For cooling a load which may be installed for example in an aircraft, and intended to be supplied from a bulk supply of liquid refrigerant, the latter is replaced by a liquid dispenser including a liquefier fed with gaseous refrigerant under pressure. The liquefier acts on the Joule Thomson principle and includes a heat exchanger having two paths through the first of which refrigerant gas from a supply at high pressure flows to an expansion nozzle through which it expands to an intermediate pressure above ambient pressure, causing some of the refrigerant to liquefy in a liquefying chamber while the remainder flows back through the second path of the heat exchanger to cool the incoming refrigerant; and a nozzle forming an outlet from the liquefying chamber and means for connecting a transfer pipe to the outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.