Fuel injection device for engine with supercharger and method for controlling the same
US5996552A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1998 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Apr 15, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an engine, which has a supercharger and which rotates a generator running at high-idle speed, the rotational speed of the supercharger is accelerated in advance before performing a fuel supply so as to prevent a sudden reduction in the rotational speed due to a suddenly increased load during starting and operating time. A fuel injection device (1), which injects a specified quantity of fuel into an engine cylinder at a specified fuel injection timing and discharges exhaust gas at a specified temperature when the engine is running at unloaded high-idle speed, includes an actuator (14) connected to an injector (13) for controlling fuel injection, a load sensor such as an engine speed sensor (41), and a controller (44) which signals the actuator to cause the actual fuel injection timing to be behind the specified fuel injection timing, hence increasing the exhaust gas temperature at the high-idle-running to be higher than the specified exhaust gas temperature. When the high-idle speed at the time of loading becomes lower than a specified threshold or the loading becomes more than a specified threshold, the controller signals the actuator to cause the actual fuel injection timing to…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.