Daimler Ag

Tilmann Römheld

Thomas Stolk

Jens Meintschel

Alexander Von Gaisberg-Helfenberg

Kai Lehmann

Matthias Gregor

Alexander Gaisberg-Helfenberg

Dieter Nowak

Petra Schulz

Dietmar Schröer

Marc Maronde

Bernd Neubauer

Michael Wagenplast

Matthias Eppinger

In an internal combustion engine including cylinders arranged in a housing, a crankshaft, pistons disposed in the cylinders so as to be movable by the crankshaft, and a device for varying a compression ratio of the internal combustion engine wherein the device, for varying the compression ratio, includes an adjusting structure which varies the effective length of a connecting rod of the piston, the lift of the crankshaft or the position of the cylinder with respect to the center of the crankshaft, an operating structure is provided by rotation of which the position of the adjusting structure can be controlled, and a drive device for controlling the operating structures contains a coupling mechanism with an integrated brake function, whereby h the adjusting structure can either be placed in operative connection with the crankshaft or can be blocked.

Internal combustion engine having a variable compression ratio

In a camshaft adjusting device for adjusting a phase position of a camshaft, including a rotary actuator having a stator and at least one axially displaceable rotor and including a gear mechanism which is arranged operatively between two of at least three shafts, one of the shafts being a control shaft which is acted upon by the rotary actuator, one of the shafts being a drive shaft which is connected to the crankshaft, and one of the shafts being an output shaft which is connected to the camshaft, a compact locking structure is provided whereby at least two of the at least three shafts can be locked to one another in a rotationally fixed manner by a spring depending on operating conditions and released by an auxiliary coil which, upon energization, provides for axial movement of the rotor out of its locked position to permit adjustment thereof.

Camshaft adjusting device

In an adjusting apparatus, particularly for an internal combustion engine having cylinders arranged in an engine block, with a crankshaft and with pistons movably disposed in the cylinders, the adjusting apparatus includes a pick-up which causes an adjustment of an adjustable device, and an adjusting element which is operatively connected to the pick-up, the adjusting element being arranged movably on an adjusting shaft () which can be moved by an actuator translationally with a cone as adjusting element or rotationally with an eccentric () as adjusting element.

Adjusting apparatus particularly for an internal combustion engine

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Waiblingen, Germany

Tilmann Römheld