Semi-closed air-cycle refrigeration system and a positive-pressure snow removal cyclone separator therefor
US8245532B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 2008 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Apr 2, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B9/004
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A refrigeration system that includes at least one semi-closed air-refrigerated chamber and an air-cycle refrigeration loop for drawing air from the refrigerated chamber(s), cools the air, and returns the now-cooled air to the refrigerated chamber(s). The refrigeration loop includes various compression, expansion and heat transfer stages for cooling the air drawn from the refrigerated chamber(s). The air within the refrigerated chamber and air infiltrating into the refrigerated chamber(s) will typically contain moisture. A positive-pressure cyclone separator located between a final expansion stage and the refrigerated chamber(s) removes snow created in the final expansion stage due to moisture in the air drawn from the refrigerated chamber(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.