Method and apparatus for stabilizing the through flow of electromagnetic injectors
US4092717A · kind A · utility
14Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1976 |
| Grant date | May 30, 1978 |
| Priority date | — |
| Expiry date | Oct 28, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/2058
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In order to stabilize the open time of an electromagnetic fuel injector against variation of vehicle battery voltage, first and second threshold values of solenoid current for opening and closing of the injector are predetermined experimentally, the duration of the injection control signal being determined from the time the first current threshold is reached. The battery voltage dependent delay between the end of the injection control signal and the reaching of the second current threshold as the solenoid current decays is subtracted from the duration of the injector opening control signal for the subsequent injection cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.