Schaeffler Technologies Ag & Co .kg

Kurt Kirsten

Andreas Strauss

Peter Solfrank

Heiko Schmidt

Christopher Mitchell

A bearing unit for a turbocharger, including a bearing housing extending in an axial direction and also including a bearing cartridge arranged within the bearing housing, wherein between the outer circumference of the bearing cartridge and the bearing housing there is formed an intermediate space with an oil film, and wherein the bearing housing has a supply bore formed for the supply of oil to the oil film. The bearing cartridge includes a rolling bearing, the outer cartridge ring of which is mounted in a freely rotatable manner in the oil film. A bearing unit for a turbocharger, the bearing cartridge of which includes a rolling bearing, the bearing outer ring of which is mounted in a freely rotatable manner in the oil film. By means of bearing units of such design, it is possible to ensure the secure mounting of a shaft even without a separate twist prevention device.

Bearing unit for a turbocharger

A device () for the variable adjusting of the control timing of gas exchange valves () of an internal combustion engine () with a drive element (), an output element (), at least one pressure chamber () and a volume accumulator (), wherein the output element () is arranged in a rotatable manner to the drive element (), and the pressure chamber () is bordered at least partially by these components (), wherein a phase position between the output element () and the drive element () can be variably adjusted by the pressure medium supply to or pressure medium removal from the pressure chamber (). Pressure medium lines () are provided by which the pressure medium can be supplied to the pressure chamber () or removed therefrom. The volume accumulator () has at least one housing () and a displaceable separating element () therein that separates a supply chamber (), which connects to one of the pressure medium lines (), from a ventilated complementary space (). The separating element () is displaced in the housing () by the admission of the pressure medium in the supply chamber () in such a way that the volume of the supply chamber () increases at the expense of the complementary space ().

Growing community of inventors

Graz, Austria

Kurt Kirsten