Common-rail fuel injection system

Details Common-rail fuel injection system Common-rail fuel injection system

2007-05-01

2007-05-01

Moulis, Thomas (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S480000

Reexamination Certificate

active

11098517

ABSTRACT:
A common-rail fuel injection system includes a common rail, an injector, a control device and a pressure sensor. The common rail stores the high-pressure fuel. The injector injects the fuel stored in the common rail. The control device obtains an injection quantity from the injector in accordance with an operating state so as to control and on-off valve of the injector based on the injection quantity. The common-rail pressure sensor detects a common-rail pressure of the fuel stored in the common rail. The control device includes correction means for, obtaining a pressure drop quantity of the common rail pressure upon establishment of a predetermined learning condition, obtaining a leakage quantity change of the injector, and correcting the injection quantity based on the leakage quantity change.

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French Search Report - Sep. 19, 2005.

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