Robert Boschgmbh

Bosch Mahle Turbo Systems Gmbh Co. Kg

Ronbert Bosch Gmbh

Andreas Wengert

Nadja Eisenmenger

Hans-Christoph Magel

Achim Brenk

Claus Fleig

Dieter Seher

Frank Ulrich Rueckert

Markus Eble

Rudolf Heinz

Holger Rapp

Wolfgang Stoecklein

Rainer Haeberer

Jochen Laubender

Matthias Stein

Timo Tries

Gregory Rewers

Hansjoerg Egeler

Giovanni Ferraro

Felix Wiedmann

Ralf Maier

Kurt Blank

Thomas Kuegler

Thomas Berger

Thomas Pauer

Juergen Hanneke

Stefan Haug

Michael Mennicken

Andreas Rau

Dirk Naunheim

Bernd Banzhaf

Stefan Schuerg

Martin Rauscher

Tobias Reinhard Ott

Gunter Winkler

Christian Kuhnert

Andreas Bartsch

Dirk Blümmel

Stefan Bedoe

Jens Kreth

Turbomachine (), in particular for a fuel cell system (). The turbomachine () comprises a compressor (), a drive device () and a shaft (). The compressor () has a rotor () arranged on the shaft (), a compressor inlet () and a compressor outlet (). A working fluid can be delivered from the compressor inlet () to the compressor outlet (). A drive cooling path () for cooling the drive device () branches off at the compressor outlet (). Also proposed is a fuel cell system () with a turbomachine () according to the invention, a method for operating the turbomachine () and a method for operating the fuel cell system ().

Turbomachine, in particular for a fuel cell system, fuel cell system, method for operating a turbomachine, and method for operating a fuel cell system

The turbomachine comprises a casing (), there being arranged in the casing an impeller () arranged on a driven shaft. The turbomachine has an inflow region () and an outflow region () and, in operation, is flowed through by a working medium. The working medium flows into the inflow region, along a front side () formed on the impeller and subsequently out of the outflow region, there being a pressure drop at the front side between the inflow region and the outflow region. A pressure divider () is arranged on the rear side of the impeller, opposite the front side.

Turbomachine

A method for operating a line circuit () for waste heat utilization of an internal combustion engine (), and a control unit (). A feed pump (), at least one heat exchanger (), an expansion machine (), a condenser () and a control unit () are situated in the line circuit (). The control unit () calculates a time period which is required until individual components or all the components of the line circuit () have reached a predefined temperature, in order to start up the line circuit () at least partially.

Method and control unit for operating a line circuit for waste heat utilization of an internal combustion engine

The invention relates to a device and a method for separating dirt particles from the working medium of a turbine (). The turbine () comprises at least one rotor () which is arranged in a housing (). A swirl generator () is provided that sets the working medium and the dirt particles in a spiral-shaped rotational movement along a principal axis () by means of the geometry of the swirl generator () and thereby separates the dirt particles from the working medium. The swirl generator () is designed in such a way that the working medium experiences a reversal of the speed component parallel to the principal axis () within the swirl generator ().

Device and method for separating dirt particles from the working medium of a turbine

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

The invention relates to a prime mover arrangement comprising an internal combustion engine () for driving a first shaft () and comprising a steam engine () which is connected to the first shaft by means of a clutch arrangement () for driving a second shaft (). Furthermore, means which interact with the clutch arrangement () are arranged between the first shaft () and the second shaft () in order to transmit a rotational movement of the second shaft () to the first shaft () in a first operating mode and to allow a freewheel between the first shaft () and the second shaft () in a second operating mode. The clutch arrangement () can be operated with positive pressure or negative pressure. Furthermore, the clutch arrangement () can be shifted by a fluid, and a torque transmission is provided between the first shaft () and the second shaft ().

Prime mover arrangement comprising a fluid-actuated clutch arrangement and a multi-disk clutch

The invention relates to a prime mover arrangement comprising an internal combustion engine () for driving a first shaft () and comprising a steam engine (), which is connected to the first shaft by means of a clutch arrangement (), for driving a second shaft (). Furthermore, a freewheel () which interacts with the clutch arrangement () is arranged between the first shaft () and the second shaft () in order to transmit a rotational movement of the second shaft () to the first shaft () in a first operating mode and to allow the first shaft () to freewheel relative to the second shaft () in a second operating mode. The clutch arrangement () is designed as a fluid-actuated clutch arrangement () which can be operated with positive pressure or negative pressure and bridges the freewheel () in a friction-fitted or form-fitted manner in order to transmit the rotational movement of the internal combustion engine () to the second shaft () via a flange () arranged on the first shaft ().

Prime mover arrangement comprising a fluid-actuated clutch arrangement and a freewheel

The invention relates to a method for operating a steam cycle process for using the heat of an internal combustion engine (), comprising a conduction circuit () in which a working medium circulates. Said conduction circuit () comprises at least one pump (), at least one heat exchanger (), an expansion machine (), a feedwater tank () for storing the liquid working medium, and a condenser (). Components of the conduction circuit () are frost-proofed by partially evacuating the liquid working medium. After the end of the circulation of the working medium, at least one of the pumps () continues to operate in order to evacuate the working medium at least from the pump () which continues to operate.

Method for operating a steam cycle process

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 electromagnetic clutch (4) which serves for connecting a steam engine (2) to a combustion engine (3), wherein a first shaft (8) which can be driven by the steam engine (2) and a second shaft (9) which can be driven by the internal combustion engine (3) are provided, wherein an intermediate gear (23) which is connected to the first shaft (8) and a clutch bell (26) which is at least indirectly connected to the second shaft (9) are provided, wherein a freewheel (27) is provided between the intermediate gear (23) and the clutch bell (26).

Electromagnetic clutch for connecting a steam engine to a combustion engine

The invention relates to a device and a method for the recovery of waste heat from an internal combustion engine (), according to which a feed pump (), a heat exchanger (), an expansion engine () and a capacitor () are arranged in a circuit () containing a circulating working medium. A bypass connection () is mounted in parallel to the expansion engine (), in the circuit (), the expansion engine () being coupled to the circuit (), or decoupled therefrom, according to an operating situation of the internal combustion engine ().

Device and method for the recovery of waste heat from an internal combustion engine

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 invention relates to a unit assembly system for the manufacture of exhaust-gas turbochargers () for internal combustion engines, of motor vehicles in particular, wherein the respective exhaust-gas turbocharger () has at least one hydrodynamic axial plain bearing () for supporting axial forces of a turbine wheel and/or of a compressor wheel () on a housing (), said axial plain bearing having with regard to an axis of rotation () of a shaft () supporting the turbine wheel and/or the compressor wheel () a plurality of wedge-shaped bearing segments () distributed in the circumferential direction, which bearing segments work together with at least one level, annular thrust surface () that extends transversely to the axis of rotation (). In order to be able to realize in as economical a manner as possible different exhaust-gas turbocharger types that differ from one another by differing loads of the at least one axial bearing (), the unit assembly system comprises different thrust elements () having the respective thrust surface (), which thrust elements differ from one another by having thrust surfaces () of different sizes.

Unit assembly system for an 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 variable turbine geometry () of a supercharging device, in particular an exhaust gas turbocharger for an internal combustion engine. The variable turbine geometry () comprises guide vanes () that are assigned to the circumference of a turbine rotor and are operated by means of a control ring () that is accommodated on journals () of the guide vanes (). The control ring () is locked on these supporting journals () of the guide vanes ().

Growing community of inventors

Auenwald, Germany

Andreas Wengert