Patent ID: 9297328
Filing Date: 2016-03-29
CPC Classification: F02D

Claim Text:
1. A fuel injection system of an internal combustion engine, comprising: a first and a second fuel pump, a leakage-prone volume flow regulating valve arranged in a fuel line between the first and the second fuel pump, a fuel temperature sensor measuring a fuel temperature downstream of the first fuel pump and upstream of the second fuel pump, and an automated control unit configured to actuate the first fuel pump as a function of a position of the leakage-prone volume flow regulating valve, a detected operating state of the internal combustion engine, and the measured fuel temperature, such that the leakage-prone volume flow regulating valve serves as the sole control element for a fuel pressure regulation operation in the fuel injection system, and wherein the control unit operates to deactivate the first fuel pump in response to detecting the operating state of the internal combustion engine corresponds to a first predefined operating state, and activate the first fuel pump in response to detecting the operating state of the internal combustion engine corresponds to a second predefined operating state different from the first predefined operating state.