Method of cold production and devices for the practical application of said method
US4070871A · kind A · utility
15Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1975 |
| Grant date | Jan 31, 1978 |
| Priority date | — |
| Expiry date | Oct 1, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B31/02
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A first mass of driving vapor is admitted into a single chamber of variable volume and permitted to perform isobaric then polytropic work in an expansion which increases the chamber volume. A second mass of vapor derived from the refrigeration cycle is then admitted at constant pressure in order to attain maximum volume. The work performed by the driving vapor is utilized in a polytropic process for compressing the vapor masses which are then discharged to the condenser in an isobaric process when the chamber approaches minimum volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.