Caterpillar Motoren Gmbh & Co. Kg

L'orange Gmbh

Stefan Haas

Arvind Sivasubramanian

Eike Joachim Sixel

Wolfgang Scheibe

Horst Ressel

Andre Schmidt

Bert Ritscher

Andreas Banck

Thorsten Tuexen

Ole Ohrt

Sven Ernst

Kai Ruschmeyer

Hendrik Herold

Bodo Gneist

Werner Rebelein

Jürgen Schick

Finn Vogler

Peter T Ladlow

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 fuel injection system supplies fuel at high pressure to an internal combustion engine via at least two high-pressure fuel pumps and a high-pressure fuel distribution line. The high-pressure fuel pumps can operate in a first pump mode and a second pump mode, which differ in the amount of fuel that is pumped. A control unit alternately operates the high-pressure fuel pumps such that, during a first time period, at least one of the high-pressure fuel pumps is operated in the first pump mode and all other high-pressure fuel pumps are simultaneously operated in the second pump mode and such that, during a second time period, at least one of the high-pressure fuel pumps, which was operated in the second pump mode during the first time period, is operated in the first pump mode and the remaining high-pressure fuel pumps are simultaneously operated in the second pump mode.

System and method for preventing overheating of a fuel pump

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Munich, Georgia

Stefan Haas