Patent ID: 7150270
Filing Date: 2006-12-19
Classification: F01P,F02M,Y02T

Abstract:
1. An arrangement for handling the fuel in a common rail fuel injection system of an internal combustion engine, including a fuel tank ( 10 ), a fuel delivery line ( 2 ) extending from the tank ( 10 ) to a high pressure fuel rail ( 4 ) for supplying high pressure fuel to the cylinders of the internal combustion engine, a first fuel filter ( 7 . 1 ) disposed in the fuel delivery line ( 2 ), a low-pressure pump ( 1 ) arranged in the fuel delivery line ( 2 ) upstream of the first fuel filter ( 2 ) and a high-pressure pump ( 3 ) arranged in the fuel delivery line ( 2 ) downstream of the first fuel filter ( 7 . 1 ), a bypass line ( 5 ), which extends from the high pressure fuel rail ( 4 ) to the fuel delivery line 2 and includes a heat exchanger ( 6 ) and a second fuel filter ( 7 . 2 ), for returning fuel into the fuel line ( 2 ), the bypass line ( 5 ) including a heat exchanger ( 6 ) operatively connected to one of a cooling circuit of an air conditioning system or to a cooling circuit of the internal combustion engine.