Patent Number: 6,253,734

Title: Fuel delivery system of an internal combustion engine

Abstract: A fuel delivery systems with first and second fuel pumps connected in series in which, a satisfactorily precise regulation of the fuel quantity supplied by the second fuel pump is possible. In particular, a switching time of a control valve that controls the fuel quantity is very short. The control valve includes an electromagnet which holds the valve member in a starting position. The electromagnet is supplied with just enough current that the valve member remains in this position. A slight change of the current supply of electromagnet can then cause the switching of the control valve into the end position within an extremely short period of time. The fuel delivery system is provided for an internal combustion engine of a vehicle.

Inventors: Rembold; Helmut (Stuttgart, DE), Marquardt; Werner-Karl (Markgroeningen, DE)

Assignee: Robert Bosch GmbH

International Classification: F02M 63/00 (20060101); F02M 59/34 (20060101); F02M 63/02 (20060101); F02M 59/46 (20060101); F02M 59/20 (20060101); F02M 59/00 (20060101); F02M 59/36 (20060101); F02M 037/00 ()

Expiration Date: 07/03/2018