Heat pumps with unequal cooling and heating capacities for climates where demand for cooling and heating are unequal, and method of adapting and distributing such heat pumps
US9121628B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2011 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Jul 4, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49359
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Heat pumps for climates where demand for cooling and heating are unequal and methods of adapting and distributing heat pumps for such climates. Heat pumps include a compressor, compressor motor, variable speed drive, and controller. In a number of embodiments, non-volatile memory stores sets of constant speeds for cooling and heating, and a person can select, via an input device, different sets of speeds for cooling and heating to provide the different cooling and heating capacities. The controller then operates the unit at the selected speeds, selecting from within the set based on demand for cooling or heating. In some embodiments, different sets of speeds may have the same minimum speed but different maximum speeds. Identical heat pumps can be configured to have different capacity ratings and different advertised efficiencies for different climates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.