Compressor heating system
US10295236B2 · kind B2 · utility
0Cited by
29References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2015 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Aug 7, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A compressor heating system includes a compressor drive controller electrically coupled to an outdoor controller configured to selectively implement a pulse width modulation algorithm to deliver a pulsed direct current (DC) from the compressor drive controller to at least one stator winding of a motor of a variable speed compressor to provide heat to the compressor to prevent refrigerant migration to the compressor when the compressor remains idle with respect to operating in a cooling or heating mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.