Further-improved control system for solar heating systems
US4543944A · kind A · utility
2Cited by
5References
3Claims
0Family size
Inventor
Key dates
| Filing date | Jul 18, 1984 |
| Grant date | Oct 1, 1985 |
| Priority date | — |
| Expiry date | Jul 18, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/1924
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A control circuit for controlling the fan or circulating pump in a solar-thermal heating system to prevent unnecessary pump or fan switching when short-term interruptions occur in the insolation of the solar panels includes a temperature-sensitive time-delay element tailored to have thermal response characteristics corresponding to those of the solar panels in the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.