Internal combustion engine radiator cooling fan drive motor control system
US4313402A · kind A · utility
24Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1979 |
| Grant date | Feb 2, 1982 |
| Priority date | — |
| Expiry date | Nov 30, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/24
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The electric drive motor of an internal combustion engine radiator cooling fan that is arranged to be energized by the output potential of a dynamoelectric generator driven by the engine is supplied with operating potential in such a manner that the average supplied drive motor power is directly proportional to engine speed while engine temperature is within the range between a predetermined first temperature and a predetermined higher second temperature and the engine is operating within a selected speed range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.