Control circuit for an electrically heated bimetal actuated automatic choke valve
US4591699A · kind A · utility
6Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1984 |
| Grant date | May 27, 1986 |
| Priority date | — |
| Expiry date | May 29, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M1/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control circuit for controlling a bimetal actuated choke valve adapted to be driven by a heater energized by electric power whose duty ratio is changed in response to ambient temperature. The control circuit is integrally formed by a hybrid integrated circuit, wherein the characteristics of the duty ratio with respect to the ambient temperature are adjusted by at least one resistance provided externally of the hybrid integrated circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.