Device and method for identifying defects in a fuel...

Details Device and method for identifying defects in a fuel... Device and method for identifying defects in a fuel...

2006-11-21

2006-11-21

McCall, Eric S. (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Compression

Reexamination Certificate

active

07137294

ABSTRACT:
The invention makes the identification of defects possible in a fuel injection system comprising a fuel accumulator, a continuously operating high-pressure pump and a fuel pressure control valve. By evaluating the high-frequency portion of the fuel pressure course in the fuel accumulator, it can be indicated with a high probability which of the components are defective whereby this is assisted, in particular, by additional evaluations performed during a diagnostic method.

REFERENCES:
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patent: 2006/0150723 (2006-07-01), Delp et al.
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patent: WO 95/06814 (1995-03-01), None
patent: WO 01/83971 (2001-11-01), None

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