Method for operating a fuel injection device, especially for...

Details Method for operating a fuel injection device, especially for... Method for operating a fuel injection device, especially for...

2007-08-21

2007-08-21

Argenbright, Tony M. (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C310S316030, C123S490000

Reexamination Certificate

active

11188170

ABSTRACT:
A method for operating a fuel injection device, particularly of a motor vehicle. The fuel injection device is provided with an injection valve which has a piezoelectric element. In using the method, the piezoelectric element is activated in such a way that the injection valve goes over into an opened state. During the activation, an electrical voltage is ascertained and/or prespecified at the piezoelectric element and/or an electrical current is ascertained and/or specified via the piezoelectric element. From the path of the voltage and/or from the path of the current one may infer the point in time of opening of the injection valve.

REFERENCES:
patent: 2003/0106533 (2003-06-01), Crofts et al.
patent: 2005/0121535 (2005-06-01), Pirkl et al.
patent: 2366664 (2002-03-01), None
patent: WO 03/104633 (2003-12-01), None

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