Schaeffler Technologies Ag & Co .kg

Christian Schaefer

Peter Solfrank

Heiko Schmidt

Christopher Mitchell

Oliver Schnell

Peter Sailer

Stefan Mackowiak

Johannes Weis

Sebastian Heitz

A cooling system for a dynamoelectric machine comprising a cooling jacket for assembly on an outer circumference of a stator of the dynamoelectric machine, a housing for receiving the stator having the mounted cooling jacket such that a hollow chamber, which can be filled with a liquid cooling medium, remains between an outer wall of the cooling jacket and an inner wall of the housing, wherein an inlet opening for inlet of the cooling medium into an inlet region and an outlet opening for outlet of the cooling medium from an outlet region of the hollow chamber are arranged on the housing and a barrier element connected to the cooling jacket for spatial separation of the inlet region from the outlet region is provided. The efficiency of such a cooling system is improved in that the barrier element presses against the inner wall of the housing having increasing pressure difference of the cooling medium in the inlet and outlet region.

Cooling system for a dynamoelectric machine

A rolling bearing for a turbocharger, which has an outer ring with a first rolling element raceway, an inner ring with a second rolling element raceway, and several rolling elements accommodated in rolling element pockets of a rolling element cage. The rolling element cage has a guide surface, which is guided on an inner surface of the outer ring and arranged on a smaller radius than the radius of the first rolling element raceway. The rolling element cage has an extension, which is arranged over the circumference of the rolling element cage and extended annularly in the radial direction, on the side opposite the guide surface.

Rolling bearing having a cage to prevent flooding with lubricant

An antifriction bearing for a turbocharger, which has an outer ring with an annular inner face and an inner ring with an outer face which is parallel to the inner face, and a rolling body cage with a single annular part arranged radially between the outer and inner ring with one cage guiding face which is parallel to the inner face of the outer ring and an inner surface which is parallel to the outer face of the inner ring, and with closed rolling body pockets which are distributed over the circumference and rolling bodies received in the pockets. To provide hydraulic damping and reduced friction, the annular part is provided in the region of the cage guiding face with at least one radial recess outside the rolling body pockets, which can be formed by apertures, cutouts or grooves in the cage guiding face.

Antifriction bearing

A hydraulic valve play compensation element for an internal combustion engine is provided as a reverse-spring/free-ball element, with a cylindrical housing, a cylindrical piston () guided therein with sealing play and a control valve (), which is arranged between a low-pressure chamber () of the piston () and a high-pressure chamber () of the housing, on a piston head () of the piston and which has a closing body (), which can contact a valve seat () surrounding an axial bore hole () of the piston head () when carrying out a stroke () in the closing direction against the force of a control-valve spring () and which can contact a contact surface () of a valve cap () surrounding the closing body () when carrying out a stroke in the opening direction. In a region of the axial bore hole () for the closing body () there is a narrow guidance surface () with gaps, which enable a volume flow of hydraulic medium between the high-pressure chamber () and the low-pressure chamber ().

Growing community of inventors

Nuremberg, Germany

Christian Schaefer