Device and method for detecting malfunctions in a fuel...

Details Device and method for detecting malfunctions in a fuel... Device and method for detecting malfunctions in a fuel...

2003-11-21

2008-05-13

McCall, Eric S. (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Compression

Reexamination Certificate

active

07370519

ABSTRACT:
In the low pressure zone (10) of a fuel injection system a fuel pressure damper (12) is provided which dampens pressure variations, especially such pressure variations that are caused by operation of a high-pressure fuel pump (16) mounted downstream of the low pressure zone (10). In the low pressure zone (10), the pressure profile is detected by a pressure sensor (14). The high-frequency components of the pressure profile detected by the pressure sensor (14) can be used to ascertain whether the fuel pressure damper (12) functions properly.

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patent: 1 262 658 (2002-12-01), None
patent: WO 01/29411 (2001-04-01), None

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