Cooling system with tandem compressors and electronic expansion valve control
US8881541B2 · kind B2 · utility
17Cited by
35References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2012 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Jun 4, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A cooling system has a tandem compressor, a condenser, an electronic expansion valve and an evaporator arranged in a direct expansion cooling circuit. The tandem compressor includes a variable capacity compressor and a fixed capacity compressor. A controller controls the electronic expansion valve and selects which of a plurality of superheat control modes to use in operating the electronic expansion valve based on control parameters and a current operating status of each of the variable capacity compressor and fixed capacity compressor of the tandem compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.