Robert Boschgmbh

Thomas Lettner

Uwe Kuhn

Heiner Fees

Rainer Haeberer

Josef Guentert

Hanspeter Mayer

Bernd Streicher

Juergen Hammer

Sandro Soccol

Robert Reitsam

Christoffer Uhr

Matthias Schmidl

Walter Haberler

Andreas Putzer

Erich Hirscher

Friedrich Schiller

A fuel injection system having a fuel reservoir, a high-pressure fuel pump by which fuel is pumped into the fuel reservoir as a function of engine operating parameters, a prefeed pump by which fuel is pumped from a fuel tank to the intake side of the high-pressure fuel pump, a fuel metering device for adjusting the fuel quantity pumped into the fuel reservoir by the high-pressure fuel pump, and at least one injector, communicating with the fuel reservoir, for fuel injection to the engine. The metering device is disposed between the fuel tank and the intake side of the prefeed pump. The high-pressure fuel pump has a drive region, which for the sake of its lubrication can be made to communicate with the outlet of the prefeed pump, via a pressure valve that opens towards the drive region.

Fuel injection system for an internal combustion engine

The invention relates to a coupling for coupling two rotatable bodies, in particular a gear and a drive shaft, which are disposed essentially concentric to each other, with or without axial offset, having a coupling part. In order to reduce the structural height of the coupling, the coupling part is integrated into one of the rotatable bodies. In a fuel-supply pump, the drive shaft is coupled to the driven gear by means of the coupling part.

Coupling and fuel-supply pump with coupling

The invention relates to a method for lubricating the teeth of a gear unit having a hollow wheel with an inner set of teeth and at least one pinion with an outer set of teeth that meshes with the inner set of teeth, and a gear unit with a hollow wheel with an inner set of teeth and at least one pinion with an outer set of teeth, which meshes with the inner set of teeth. To assure reliable supply of lubricant to the teeth during the operation of the gear unit, the invention proposes that the lubricant is introduced in a targeted way into the interior of the hollow wheel. The invention further proposes a gear unit, which has a device for the targeted delivery of lubricant into the interior of the hollow wheel.

Method and apparatus for lubricating the teeth of a gear unit

Pump device for high pressure fuel delivery in fuel injection system of

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Thomas Lettner