Ina Schaeffler Kg

Ina Walzlager Schaeffler Ohg

Schaeffler Technologies Ag & Co .kg

Hermann Golbach

Mike Kohrs

Martin Steigerwald

Joachim Dietz

Jens Sch&auml;fer

Matthias Kapp

Vane-cell camshaft adjuster with a stator and a rotor which is hydraulically rotatable relative to the stator. The rotor is connectable to a camshaft. It is provided with radially projecting vanes which are inserted in vane slots in the rotor. The axial end section of the vane slot on the camshaft side has an enlarged cross section.

Vane-type camshaft adjuster

A vane-type camshaft adjuster having a stator, and a rotor connectable to a camshaft. The rotor has a plurality of radially protruding blades inserted in respective blade grooves. The blade groove has groove side faces, a groove bottom and rounded transition regions between the groove side faces and the groove bottom. The transition regions undercut the groove side faces, wherein the rounded transition regions are configured, at least in part, as circular arc segments which undercut the groove bottom.

A hydraulic camshaft-adjusting device of the rotary piston type that includes of a drive gear ( ) directly connected to a crankshaft and an impeller that is directly connected to a camshaft ( ). The drive gear ( ) has a cavity formed from a perimeter wall ( ) and two side walls ( ) inside of which at least one hydraulic working chamber is formed from at least two boundary walls. The impeller has at least one radial vane ( ) and each vane ( ) divides one hydraulic work chamber into two hydraulic pressure chambers. The outer end ( ) of each vane ( ) of the impeller is pressed radially against the perimeter wall ( ) of the drive gear ( ) as a result of the force of a spring element ( ) located at the inner end ( ) of the vane. The spring elements ( ) located at the inner end ( ) of the vanes ( ) have, at unchanged space requirements, a spring force that is greater than the pressure force of the hydraulic pressure medium acting on the outer end ( ) of the vanes ( ) in the respective actuated pressure chamber of the device ( ).

Device for changing the control timing of the gas exchange valves of an internal combustion engine, in particular a hydraulic camshaft adjustment device of the rotary piston type

Growing community of inventors

Erlangen, Germany

Hermann Golbach