Daimler Ag

Markus Lengfeld

Thomas Stolk

Alexander Von Gaisberg-Helfenberg

Jens Meintschel

Alexander Gaisberg-Helfenberg

Martin Ströer

A valve train device, in particular for an internal combustion engine, includes a support element secured to a housing, at least one axially moveable cam unit associated with a valve, and at least one switch unit for axially moving at least one part of the cam unit having at least one displacement body which is provided to be introduced for axial movement at least functionally between the support element and the cam unit. The cam unit has at least three cam paths.

Valve train device

An adjusting device, in particular for adjustment of a camshaft of an internal combustion engine, is disclosed. The adjusting device includes a brake unit which has at least one brake disc and at least one electromagnet for actuating the brake unit. The electromagnet has a yoke and an armature formed separately from the brake disc, where the brake disc is disposed at least partially spatially between the yoke and the armature of the electromagnet.

Adjusting device, in particular for adjusting a camshaft of an internal combustion engine

In a valve drive train device for an internal combustion engine of motor vehicle, wherein at least one axially movably mounted cam element including at least one cam set with at least two cam parts and a shifting gate with at least two gate track for converting a rotary movement of the cam element into an axial shifting motion, at least one of the cam parts and the adjacent gate track are disposed in an at least partially axially overlapping relationship for reducing thereby the axial length and the mass of the cam element or permitting the use of a larger, highly durable, actuating mechanism.

Valve drive train device for an internal combustion engine

In a valve train device, particularly of an internal combustion engine, which device has an actuating device for displacing at least one axially displaceable cam element and a cam element shifting gate for axially displacing the cam element and furthermore at least one switch unit with a switch element and an actuator for operating the switch element so as to engage the cam element shifting gate at least in one switching position and to move the switch element into a desired switching position, the cam element shifting gate has at least one intermediate segment for terminating a switching action.

Valve drive train device

In a phase adjustment device for a valve drive mechanism of an internal combustion engine, in particular a camshaft adjustment device, with a phase adjustment unit which, for adjusting a phase position in a normal operating mode, comprises a coupling unit for controlling an adjustment gear element by applying a braking force, and with a failsafe adjustment arrangement for setting a defined fail-safe phase position in a fail-safe operating mode, the adjustment unit includes mechanical means for varying the braking force of the coupling unit of the phase adjustment unit for setting the phase angle to a controllable failsafe phase angle position.

Adjustment device for a valve drive mechanism of an internal combustion engine

In an internal combustion engine valve drive switching device with a switching unit, the switching unit includes an implementation unit for implementing a first switching process based on at least one signal and thereafter, to implement a second switching process independently of an electronic evaluation.

Internal combustion engine valve drive switching device

In an actuating device with at least one electrical or electromagnetic actuation unit, at least two activation sequences performed by different actuation elements of the actuation unit are associated with at least two different electrical and/or electromagnetic states of the actuation unit via electric coil units energized by current flowing in different flow directions.

Growing community of inventors

Winnenden, Germany

Markus Lengfeld