Caterpillar Motoren Gmbh & Co. Kg

Thorsten Tuexen

Andrew Michael Denis

Arvind Sivasubramanian

Eike Joachim Sixel

Jason Hudgens

Daniel Wester

Adam Stubbs

Julian Justin

Benjamin Bleyer

Hannes Marscheider

Jun Zuo

Hauke Holst

Jan Dreves

Ole Ohrt

Stefan Haas

Sven Ernst

Werner Rebelein

Finn Vogler

Christian Hohenwald

Fuat Uslu

A fuel supply system for an internal combustion engine may include a plurality of fuel injection pumps, each fuel injection pump being configured to pressurize fuel and provide the pressurized fuel to an associated fuel injector. The fuel supply system may further include a low-pressure fuel supply line fluidly connected to the plurality of fuel injection pumps and configured to provide fuel from a fuel supply tank to the plurality of fuel injection pumps. The fuel supply system may still further include a low-pressure fuel return line fluidly connected to the plurality of fuel injection pumps and configured to return remaining fuel from the plurality of fuel injection pumps to the fuel supply tank. The fuel supply system may include a first fuel cut-off valve disposed in the low-pressure fuel supply line and configured to stop a flow of fuel from the fuel supply tank to the plurality of fuel injection pumps.

Low-pressure fuel supply system

A method for supplying fuel to an engine is disclosed. The method may include regulating a gas admission valve disposed between a gaseous fuel line and a cylinder intake port to reduce flow of gaseous fuel to the cylinder. The method may also include closing a shut-off valve disposed between a gaseous fuel reservoir and the gaseous fuel line to restrict flow of gaseous fuel from the gaseous fuel reservoir to the gaseous fuel line. Further, the method may include actuating an inert gas inlet valve disposed between an inert gas reservoir and the gaseous fuel line to supply inert gas to the gaseous fuel line and flush the gaseous fuel in the gaseous fuel line into the cylinder via the gas admission valve. Additionally, the method may include closing the inert gas inlet valve to restrict supply of inert gas to the gaseous fuel line.

Method of supplying fuel to engine

Growing community of inventors

Gettorf, Germany

Thorsten Tuexen