Bivalent heating system
US4312476A · kind A · utility
8Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 26, 1978 |
| Grant date | Jan 26, 1982 |
| Priority date | — |
| Expiry date | Dec 26, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Bivalent heating system having a directly fired heat pump with an absorber and a burner-heated generator disposed in a refrigerant circulation loop, the refrigerant loop being coupled through heat exchanging means to a heating medium loop for space heating and including control means activatable when a predetermined ambient temperature is reached for increasing fuel supply to the burner of the heat pump and for switching circulation in the refrigerant loop from heat pump operation to pure heat exchanger operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.