About 107 results
https://drivepatents.com/patents/996721 · 24 Oct 2012
A method of controlling an electromagnetic actuator having an excitation coil and a movable armature is presented. An actuating event is triggered by applying a control signal to move said armature from a rest position thereof towards an actuating position...
https://drivepatents.com/patents/997481 · 10 Oct 2012
A drive circuit for driving an electromagnetic fuel-injection valve, the drive circuit varying an application sequence of a drive voltage, which is supplied from a step-up power supply to a fuel-injection valve for conducting injection multiple times in a ...
https://drivepatents.com/patents/998907 · 29 Aug 2012
An injector drive circuit (200) including: a step-up circuit (100) generating a high voltage from a power supply; a first switching device connected to a path between the step-up circuit (100) and an injector (3); a second switching device connected to the...
https://drivepatents.com/patents/998816 · 29 Aug 2012
The drive device is configured to, during a time interval between an earlier fuel injection (first fuel injection) and a later fuel injection (second fuel injection), supply an electromagnetic coil with an intermediate current at a voltage with a level of ...
https://drivepatents.com/patents/999168 · 22 Aug 2012
Provided are a pressure sensor diagnosis method and a common-rail-type fuel injection control device which can realize the diagnosis of the presence or the non-presence of abnormality of a pressure sensor with the simple constitution without having a dedic...
https://drivepatents.com/patents/1002105 · 23 May 2012
The injection valve (100) comprises a valve needle (20) preventing a fluid flow out of an injection nozzle in a closing position and enabling the fluid flow of the injection nozzle apart from the closing position, wherein in the closing position the valve ...
https://drivepatents.com/patents/1002288 · 16 May 2012
The present invention relates to a method and an apparatus for controlling a high-pressure fuel supply pump configured to supply pressurized fuel to an internal combustion engine, the solenoid-actuated intake valve 120 being configured to be biased into a ...
https://drivepatents.com/patents/1003458 · 11 Apr 2012
A fuel injector (10) includes an injector body (11) with a tip component (30) that defines at least one nozzle outlet (12). A needle valve member (40) is positioned in the injector body (11) and includes a frustoconical segment (43) positioned in a frustoc...
https://drivepatents.com/patents/1004094 · 21 Mar 2012
An efficient control wave form is utilized to actuate the solenoids (20) of a fuel system (10) to reduce boost power/energy consumption. The solenoid (20) is initially energized by applying a boost voltage (60) from an electronic controller (30) across a s...
https://drivepatents.com/patents/1006258 · 11 Jan 2012
A fuel-injection system (2) for an internal-combustion engine has at least one fuel injector (1) with a fuel-metering servo valve (9) for controlling the discharge of fuel from a metering chamber (12), the fuel pressure in the metering chamber (12) control...