Bosch Mahle Turbo Systems Gmbh Co. Kg

Robert Boschgmbh

Matthias Stein

Andreas Wengert

Timo Tries

Claus Fleig

Dirk Blümmel

Sarmimala Hore

Achim Schmidt

Thomas Steidten

Lisa Lorenz

Christian Pankiewitz

Gunter Winkler

Jens Boehme

A motor vehicle system device having a drive assembly, to which a charging device is assigned, has a compressor having at least one compressor runner supported using at least one bearing, the bearing having a stationary first bearing part and a second bearing part that is operatively connected to the compressor runner. An overpressure source is connected to the bearing, using which an overpressure is able to be produced in a bearing gap that is present between the first bearing part and the second bearing part. The overpressure source is the compressor and/or a part of a tandem pump, which besides the overpressure also makes available low air pressure for a user of the motor vehicle system device. The invention also relates to a method for operating a motor vehicle system device.

Method and system to reduce to wear on a bearing

A battery module () having a number of electrically interconnected battery cells (), wherein the individual battery cells () are temperature-controlled by means of a temperature control fluid (). Between the battery cells (), there extends a duct system () through which the temperature control fluid () flows. The duct system () is separated completely from a degassing system () of the battery cells ().

Battery pack with air-type cooling

The invention relates to a turbine (), in particular of an exhaust gas turbocharger, having a turbine rotor (), which is rotatably mounted in a housing (), with which at least one radial inlet channel () for a guide apparatus () forming a medium which drives the turbine rotor () is associated, wherein said guide apparatus () has multiple guide vane bearing rings (), which radially enclose said turbine rotor () and have guide vanes () which lie in said inlet channel (), and a guide vane cover ring (), and wherein said inlet channel () is axially delimited by said guide vane bearing ring () and said guide vane cover ring () and said guide apparatus () is mounted in the housing () so it is axially and/or radially movable for material relaxation. Furthermore, the invention relates to an exhaust gas turbocharger, in particular for a motor vehicle.

Turbine, particularly for an exhaust gas turbocharger, and exhaust gas turbocharger

A turbocharger, comprising: at least one of a turbine housing, a bearing housing and a turbine wheel, wherein the turbine wheel is rotatably mounted about an axis and includes a guide apparatus with a plurality of guide vanes rotatably mounted in pivot bearings on a guide vane support, wherein the guide vanes influence the flow in a flow channel of the turbine housing; and a spring element, which moveably loads the guide apparatus in an axial direction against a wall of the turbine housing, and wherein the disc springs seal a displacement chamber provided with a displacement mechanism of the guide apparatus against the flow channel.

Turbocharger

An exhaust gas turbocharger, comprising: a turbine rotor rotatably mounted in a housing, which is associated with at least one guide apparatus forming a radial inlet channel, wherein the guide apparatus includes at least one of a guide vane bearing ring, a plurality of guide vanes radially surrounding the turbine rotor and located in the inlet channel and a guide vane cover ring. The inlet channel is axially delimited by the guide vane bearing ring and the guide vane cover ring wherein the guide vane bearing ring and the guide vane cover ring are moveably mounted at least one of axially and radially relative to each other and to the housing. The guide apparatus is subjected to at least one of an axial and radial preload, wherein a line of axial preload flux runs through the guide apparatus substantially parallel to the rotational axis of the turbine rotor.

Turbine, in particular for an exhaust gas turbocharger, and exhaust gas turbocharger

The guide blades provided for the variable turbine geometry are adjustably arranged within a radial gap through which gases can flow on a moveable carrier ring, which is axially clamped against stops on or in the radial gap with a thrust spring device. According to the invention, the thrust spring device loads the carrier ring on the positions closely adjacent to the stops. The thrust spring device is designed open without sealing function and if applicable combined with a separate seal without thrust function.

Turbocharger with variable turbine geometry

The invention relates to a charging device (), more preferably an exhaust gas turbocharger for a motor vehicle, which turbine geometry comprises guide blades () rotatably mounted in a blade bearing ring (), wherein the blade bearing ring () with a side is directly exposed to a hot gas flow () while the side of the blade bearing ring () facing away from this is only indirectly exposed to the hot gas flow (). It is substantial to the invention that the blade bearing ring () on its side directly exposed to the hot gas flow () is produced of a different material than on its side only indirectly exposed to the hot gas flow () wherein the two materials with regard to their heat expansion coefficients are selected in such a manner that the blade bearing ring () at preferentially all occurring operating temperatures expands evenly without warping.

Charging device

Charging equipment is disclosed, comprising a variable turbine geometry, and a plurality of guide vanes rotatably mounted between at least one of a guide vane carrier, a cover disc and a turbine housing. The guide vane carrier is positioned on at least one of the cover disc and on the turbine housing by at least one spacer. The geometry has at least two different types of flow channels, a first flow channel wherein flow is influenced by the spacer, and a second flow channel wherein flow is not influenced by the spacer. The first flow channel guide vanes have a radial distance (R) to a turbine wheel axis, and to a distance from an adjacent guide vane are configured and adjusted such that a gas flow from the first flow channel meeting the turbine wheel corresponds to a gas flow from the second flow channel meeting the turbine wheel.

Charging equipment

The invention relates to a turbine, in particular of an exhaust-gas turbocharger, comprising a turbine rotor which is supported rotatable in a housing, and to which at least one guide vane apparatus forming a radial inlet channel for a medium driving the turbine rotor is allocated, wherein the guide vane apparatus comprises a guide vane mounting ring with a plurality of guide vanes which radially surround the turbine rotor and which are located within the inlet channel, as well as a guide vane cover ring, and wherein the inlet channel is axially bounded by the guide vane mounting ring and the guide vane cover ring, and the guide vane cover ring abuts with a front side facing away from the inlet channel against a support area of the housing. The invention provides that the housing () comprises in the support area () at least one recess () which is open-edged towards the guide vane cover ring (), and through which the medium can flow. Furthermore, the invention relates to an exhaust-gas turbocharger, in particular for a motor vehicle, comprising a compressor and a turbine which are actively connected with each other in a mechanical manner.

Growing community of inventors

Korntal-Münchingen, Germany

Matthias Stein