Heating installation comprising a boiler and a heat pump
US4412581A · kind A · utility
3Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1982 |
| Grant date | Nov 1, 1983 |
| Priority date | — |
| Expiry date | Mar 1, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention relates to a heating installation which includes a boiler and a heat pump. The heat pump has a multi-stage compressor. Graded threshold value operating switches for the multi-stage compressor and the boiler are provided. A control unit which includes comparator and integrator units functions to select compressor and boiler outputs in response to comparisons between indoor and outdoor temperatures made by the comparator unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.