About 107 results
https://drivepatents.com/patents/1102074 · 4 Sep 2002
A control method for controlling the timing of fuel injection in a fuelling system for an engine comprising a fuel injector supplied with fuel from a source of fuel at high pressure, comprises the steps of varying a drive current (A) which is supplied to t...
https://drivepatents.com/patents/1102665 · 7 Aug 2002
A thermal control circuit for an integrated power transistor comprises a current generator, controlled by a turn on signal, a sensing resistance in series to the power transistor, a current limiter acting when the voltage drop on the sensing resistance ove...
https://drivepatents.com/patents/1104735 · 2 May 2002
A device for controlling fuel injection preventing the wasteful consumption of electric power and expanding the dynamic range for controlling the amount of fuel. The device comprises fuel pressure regulator means (4) for adjusting fuel pressure (Pf) of the...
https://drivepatents.com/patents/1105093 · 24 Apr 2002
A fuel injection apparatus (1) of an internal combustion engine includes a valve body (9) movably disposed for back and forth movement in a fuel passage (7) to open and close a fuel injection hole (8) of the fuel injection apparatus (1). An armature (10) i...
https://drivepatents.com/patents/1105551 · 3 Apr 2002
The device has an electric circuit (11) for generating a first electric current (13) of such a predetermined value as to excite the electromagnet (7) to open the metering valve, and a second electric current (14) of a lower value such as to keep the electr...
https://drivepatents.com/patents/1106684 · 13 Feb 2002
A method and device for driving an injector (2) in an internal combustion engine (3) in which a current wave (Iinj) which is variable over time, which comprises an initial section (T1, T2, T3) substantially of a pulse type and having a relatively high curr...
https://drivepatents.com/patents/1106685 · 13 Feb 2002
A method for control of an injector (2) in an internal combustion engine (3) in which for a specific engine cycle, a control unit (13) calculates a desired value (Tinj) of the opening time of the injector (2) and forwards this desired value (Tinj) to a dri...
https://drivepatents.com/patents/1108539 · 14 Nov 2001
The drive circuit has a first switching device (115,116) switched off to minimize battery voltage dependency during rapid transitions and a re-charging circuit (1) that supplies voltage to the magnetic valve(s) (100-102;200-202) via a third switching devic...
https://drivepatents.com/patents/1108541 · 14 Nov 2001
The circuit has a re-charging circuit (1) connected to the battery supply voltage to produce a stabilized recharging voltage for a storage capacitor (145) from the battery supply voltage and to a first switching arrangement (115, 116). The re-charging circ...
https://drivepatents.com/patents/1108535 · 14 Nov 2001
The method involves reducing the fuel supply pressure to below a predefinable operating value depending on at least one detected operating parameter of the internal combustion engine. The fuel supply pressure is reduced depending on the voltage amplitude o...