Electrical control circuit, especially for a fuel supply device of an internal combustion engine
US4216757A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 1978 |
| Grant date | Aug 12, 1980 |
| Priority date | — |
| Expiry date | Mar 16, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M69/34
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electrical control circuit, especially for a fuel supply device of an internal combustion engine, which serves to control a control member that reacts to the electrical current, said control taking place in dependence on the temperature. The electrical control circuit includes a temperature-dependent element in the form of a cold conducting (PTC resistor), and in the special exemplary embodiment is in the form of an electromagnetic valve as a control member especially to supply additional fuel into the intake manifold of an internal combustion engine at temperatures below a predetermined starting temperature of the internal combustion engine. A relay can also serve as the control member that controls the electrical current of the above-mentioned electromagnetic valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.