Compressor control for increased efficiency
US10746176B2 · kind B2 · utility
1Cited by
1References
23Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 12, 2017 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | Dec 18, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Control systems and methods for increasing efficiency of a compressor while the compressor capacity exceeds compressor load, by using a mechanical unloader such as a slide valve to reduce the internal volume ratio of the compressor and allow a more efficient speed to be maintained by a variable frequency drive (VFD) while reducing the compressor capacity based on the load. Control systems include the VFD, a controller for the VFD and the mechanical unloader, and temperature sensors. Compressor embodiments further include one or more compressors and mechanical unloaders operated by the control systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.