Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1999-09-23
2000-09-19
Moulis, Thomas N.
Internal-combustion engines
Charge forming device
Fuel injection system
123458, F02M 3304
Patent
active
06119655&
ABSTRACT:
A device for regulating a pressure in a high pressure accumulator of a fuel injection system includes a pressure adjusting element which has a shut-off element and an electromagnetic drive actuating the shut-off element. A first regulating device is connected to the pressure adjusting element and compares a pressure value obtained in the high pressure accumulator with a given setpoint pressure value. A drive signal with a setpoint current value for the electromagnetic drive is determined as a function of the comparison. A second regulating device is connected downstream of the first regulating device for comparing a current value of a current flowing through the electromagnetic drive with the setpoint current value and readjusting the current value in response to a deviation between the current value and the setpoint current value. A method for regulating a pressure in a high pressure accumulator is also provided.
REFERENCES:
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patent: 5085193 (1992-02-01), Morikawa
patent: 5727515 (1998-03-01), Biester
patent: 5727525 (1998-03-01), Tsuzuki
patent: 5738071 (1998-04-01), Smith, Jr. et al.
Published International Application No. 96/03577 (Antonioli et al.), dated Feb. 8, 1996.
Hecker Martin
Heinitz Dirk
Larisch Benno
Greenberg Laurence A.
Lerner Herbert L.
Moulis Thomas N.
Siemens Aktiengesellschaft
Stemer Werner H.
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