Patents by Inventor Andreas Wengert

Andreas Wengert has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200347780
    Abstract: Turbomachine (10), in particular for a fuel cell system (1). The turbomachine (10) comprises a compressor (11), a drive device (20) and a shaft (14). The compressor (11) has a rotor (15) arranged on the shaft (14), a compressor inlet (11a) and a compressor outlet (11b). A working fluid can be delivered from the compressor inlet (11a) to the compressor outlet (11b). A drive cooling path (92) for cooling the drive device (20) branches off at the compressor outlet (11b). Also proposed is a fuel cell system (1) with a turbomachine (10) according to the invention, a method for operating the turbomachine (10) and a method for operating the fuel cell system (1).
    Type: Application
    Filed: November 21, 2018
    Publication date: November 5, 2020
    Inventors: Andreas Wengert, Tobias Reinhard Ott
  • Patent number: 10598014
    Abstract: The turbomachine comprises a casing (26), there being arranged in the casing an impeller (23) arranged on a driven shaft. The turbomachine has an inflow region (21) and an outflow region (22) and, in operation, is flowed through by a working medium. The working medium flows into the inflow region, along a front side (23a) 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 (9) is arranged on the rear side of the impeller, opposite the front side.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: March 24, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Wengert, Bernd Banzhaf, Frank Ulrich Rueckert, Nadja Eisenmenger
  • Patent number: 10006312
    Abstract: A method for operating a line circuit (4) for waste heat utilization of an internal combustion engine (2), and a control unit (1). A feed pump (6), at least one heat exchanger (8), an expansion machine (10), a condenser (12) and a control unit (1) are situated in the line circuit (4). The control unit (1) calculates a time period which is required until individual components or all the components of the line circuit (4) have reached a predefined temperature, in order to start up the line circuit (4) at least partially.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: June 26, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Gregory Rewers, Nadja Eisenmenger, Achim Brenk, Dieter Seher, Hans-Christoph Magel, Andreas Wengert
  • Patent number: 9970327
    Abstract: The invention relates to a device and a method for separating dirt particles from the working medium of a turbine (10). The turbine (10) comprises at least one rotor (11) which is arranged in a housing (17). A swirl generator (20) is provided that sets the working medium and the dirt particles in a spiral-shaped rotational movement along a principal axis (22) by means of the geometry of the swirl generator (20) and thereby separates the dirt particles from the working medium. The swirl generator (20) is designed in such a way that the working medium experiences a reversal of the speed component parallel to the principal axis (22) within the swirl generator (20).
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: May 15, 2018
    Assignee: Robert Bosch Gmbh
    Inventors: Andreas Wengert, Hans-Christoph Magel, Nadja Eisenmenger, Frank Ulrich Rueckert
  • Publication number: 20170350252
    Abstract: The turbomachine comprises a casing (26), there being arranged in the casing an impeller (23) arranged on a driven shaft. The turbomachine has an inflow region (21) and an outflow region (22) and, in operation, is flowed through by a working medium. The working medium flows into the inflow region, along a front side (23a) 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 (9) is arranged on the rear side of the impeller, opposite the front side.
    Type: Application
    Filed: November 25, 2015
    Publication date: December 7, 2017
    Inventors: Andreas WENGERT, Bernd BANZHAF, Frank Ulrich RUECKERT, Nadja EISENMENGER
  • Patent number: 9695702
    Abstract: The invention relates to a turbine (1), in particular of an exhaust gas turbocharger, having a turbine rotor (4), which is rotatably mounted in a housing (2), with which at least one radial inlet channel (9) for a guide apparatus (7) forming a medium which drives the turbine rotor (4) is associated, wherein said guide apparatus (7) has multiple guide vane bearing rings (10), which radially enclose said turbine rotor (4) and have guide vanes (8) which lie in said inlet channel (9), and a guide vane cover ring (12), and wherein said inlet channel (9) is axially delimited by said guide vane bearing ring (10) and said guide vane cover ring (12) and said guide apparatus (7) is mounted in the housing (2) 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.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: July 4, 2017
    Assignee: Bosch Mahle Turbo Systems GmbH & Co. KG
    Inventors: Claus Fleig, Matthias Stein, Timo Tries, Andreas Wengert
  • Patent number: 9482291
    Abstract: The invention relates to a prime mover arrangement comprising an internal combustion engine (1) for driving a first shaft (2) and comprising a steam engine (4) which is connected to the first shaft by means of a clutch arrangement (3) for driving a second shaft (5). Furthermore, means which interact with the clutch arrangement (3) are arranged between the first shaft (2) and the second shaft (5) in order to transmit a rotational movement of the second shaft (5) to the first shaft (2) in a first operating mode and to allow a freewheel between the first shaft (2) and the second shaft (5) in a second operating mode. The clutch arrangement (3) can be operated with positive pressure or negative pressure. Furthermore, the clutch arrangement (3) can be shifted by a fluid, and a torque transmission is provided between the first shaft (2) and the second shaft (5).
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: November 1, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Felix Wiedmann, Andreas Wengert, Nadja Eisenmenger
  • Patent number: 9360061
    Abstract: The invention relates to a prime mover arrangement comprising an internal combustion engine (1) for driving a first shaft (2) and comprising a steam engine (4), which is connected to the first shaft by means of a clutch arrangement (3), for driving a second shaft (5). Furthermore, a freewheel (6) which interacts with the clutch arrangement (3) is arranged between the first shaft (2) and the second shaft (5) in order to transmit a rotational movement of the second shaft (5) to the first shaft (2) in a first operating mode and to allow the first shaft (2) to freewheel relative to the second shaft (5) in a second operating mode. The clutch arrangement (3) is designed as a fluid-actuated clutch arrangement (3) which can be operated with positive pressure or negative pressure and bridges the freewheel (6) in a friction-fitted or form-fitted manner in order to transmit the rotational movement of the internal combustion engine (1) to the second shaft (5) via a flange (7) arranged on the first shaft (2).
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: June 7, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Felix Wiedmann, Andreas Wengert, Nadja Eisenmenger
  • Publication number: 20160146056
    Abstract: The invention relates to a device and a method for separating dirt particles from the working medium of a turbine (10). The turbine (10) comprises at least one rotor (11) which is arranged in a housing (17). A swirl generator (20) is provided that sets the working medium and the dirt particles in a spiral-shaped rotational movement along a principal axis (22) by means of the geometry of the swirl generator (20) and thereby separates the dirt particles from the working medium. The swirl generator (20) is designed in such a way that the working medium experiences a reversal of the speed component parallel to the principal axis (22) within the swirl generator (20).
    Type: Application
    Filed: April 17, 2014
    Publication date: May 26, 2016
    Inventors: Andreas Wengert, Hans-Christoph Magel, Nadja Eisenmenger, Frank Ulrich Rueckert
  • Publication number: 20160024950
    Abstract: The invention relates to a steam turbine 5, in particular for utilizing the waste heat of an internal combustion engine, having at least one turbine housing, having a guide wheel 10 that has at least one nozzle, and having at least one rotor 6, wherein the nozzle is in the form of a duct 11 formed into the guide wheel 10. According to the invention, a steam turbine 5 is provided, the nozzles of which can be manufactured in a simple manner. This is achieved by virtue of the fact that the duct 11 has a constant width B and has a depth T that varies along the duct 11. In this way, the duct 11 can be produced by means of a single tool in a single working operation.
    Type: Application
    Filed: February 27, 2014
    Publication date: January 28, 2016
    Inventors: Andreas Wengert, Hans-Christoph Magel, Wolfgang Stolper, Nadja Eisenmenger, Frank Ulrich Rueckert, Steffen Buhl, Thomas Steidten
  • Patent number: 9163557
    Abstract: 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.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: October 20, 2015
    Assignee: Bosch Mahle Turbo Systems GmbH & Co. KG
    Inventors: Dirk Bl├╝mmel, Claus Fleig, Matthias Stein, Andreas Wengert
  • Patent number: 9163530
    Abstract: The invention relates to a method for operating a steam cycle process for using the heat of an internal combustion engine (2), comprising a conduction circuit (4) in which a working medium circulates. Said conduction circuit (4) comprises at least one pump (6, 13), at least one heat exchanger (8), an expansion machine (10), a feedwater tank (14) for storing the liquid working medium, and a condenser (12). Components of the conduction circuit (4) 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 (6, 13) continues to operate in order to evacuate the working medium at least from the pump (6, 13) which continues to operate.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: October 20, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Gregory Rewers, Nadja Eisenmenger, Achim Brenk, Dieter Seher, Hans-Christoph Magel, Andreas Wengert
  • Patent number: 9080658
    Abstract: 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).
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: July 14, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Nadja Eisenmenger, Achim Brenk, Hans-Christoph Magel, Andreas Wengert
  • Patent number: 8991180
    Abstract: The invention relates to a device and a method for the recovery of waste heat from an internal combustion engine (2), according to which a feed pump (6), a heat exchanger (8), an expansion engine (10) and a capacitor (12) are arranged in a circuit (4) containing a circulating working medium. A bypass connection (14) is mounted in parallel to the expansion engine (10), in the circuit (4), the expansion engine (10) being coupled to the circuit (4), or decoupled therefrom, according to an operating situation of the internal combustion engine (2).
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: March 31, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Gregory Rewers, Nadja Eisenmenger, Achim Brenk, Dieter Seher, Hans-Christoph Magel, Andreas Wengert
  • Publication number: 20150083545
    Abstract: The invention relates to a prime mover arrangement comprising an internal combustion engine (1) for driving a first shaft (2) and comprising a steam engine (4) which is connected to the first shaft by means of a clutch arrangement (3) for driving a second shaft (5). Furthermore, means which interact with the clutch arrangement (3) are arranged between the first shaft (2) and the second shaft (5) in order to transmit a rotational movement of the second shaft (5) to the first shaft (2) in a first operating mode and to allow a freewheel between the first shaft (2) and the second shaft (5) in a second operating mode. The clutch arrangement (3) can be operated with positive pressure or negative pressure. Furthermore, the clutch arrangement (3) can be shifted by a fluid, and a torque transmission is provided between the first shaft (2) and the second shaft (5).
    Type: Application
    Filed: March 19, 2013
    Publication date: March 26, 2015
    Applicant: Robert Bosch GmbH
    Inventors: Felix Wiedmann, Andreas Wengert, Nadja Eisenmenger
  • Publication number: 20150075942
    Abstract: The invention relates to a prime mover arrangement comprising an internal combustion engine (1) for driving a first shaft (2) and comprising a steam engine (4), which is connected to the first shaft by means of a clutch arrangement (3), for driving a second shaft (5). Furthermore, a freewheel (6) which interacts with the clutch arrangement (3) is arranged between the first shaft (2) and the second shaft (5) in order to transmit a rotational movement of the second shaft (5) to the first shaft (2) in a first operating mode and to allow the first shaft (2) to freewheel relative to the second shaft (5) in a second operating mode. The clutch arrangement (3) is designed as a fluid-actuated clutch arrangement (3) which can be operated with positive pressure or negative pressure and bridges the freewheel (6) in a friction-fitted or form-fitted manner in order to transmit the rotational movement of the internal combustion engine (1) to the second shaft (5) via a flange (7) arranged on the first shaft (2).
    Type: Application
    Filed: March 19, 2013
    Publication date: March 19, 2015
    Applicant: Robert Bosch GmbH
    Inventors: Felix Wiedmann, Andreas Wengert, Nadja Eisenmenger
  • Publication number: 20140212306
    Abstract: The invention relates to a turbine (1), in particular of an exhaust gas turbocharger, having a turbine rotor (4), which is rotatably mounted in a housing (2), with which at least one radial inlet channel (9) for a guide apparatus (7) forming a medium which drives the turbine rotor (4) is associated, wherein said guide apparatus (7) has multiple guide vane bearing rings (10), which radially enclose said turbine rotor (4) and have guide vanes (8) which lie in said inlet channel (9), and a guide vane cover ring (12), and wherein said inlet channel (9) is axially delimited by said guide vane bearing ring (10) and said guide vane cover ring (12) and said guide apparatus (7) is mounted in the housing (2) 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.
    Type: Application
    Filed: March 28, 2014
    Publication date: July 31, 2014
    Inventors: Claus Fleig, Matthias Stein, Timo Tries, Andreas Wengert
  • Publication number: 20140150426
    Abstract: The invention relates to a method and a device for using the waste heat of an internal combustion engine (2) comprising a thermodynamic working circuit (4) in which a working medium circulates. A pump (6), at least one heat exchanger (8) at least one expansion machine (10) and at least one capacitor (12) are arranged in the direction of flow of the working medium. The mechanical energy generated by the expansion machine (10) is selectively transferred to a drive train (23) and/or at least one other component (25) which can be driven mechanically.
    Type: Application
    Filed: April 20, 2012
    Publication date: June 5, 2014
    Applicant: ROBERT BOSCH GMBH
    Inventors: Gregory Rewers, Nadja Eisenmenger, Achim Brenk, Hans-Christoph Magel, Andreas Wengert, Dieter Seher, Michael Krueger
  • Patent number: 8684678
    Abstract: 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.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: April 1, 2014
    Assignee: Bosch Mahle Turbo Systems GmbH & Co. KG
    Inventors: Claus Fleig, Matthias Stein, Timo Tries, Andreas Wengert
  • Publication number: 20140075942
    Abstract: The invention relates to a method for operating a steam cycle process for using the heat of an internal combustion engine (2), comprising a conduction circuit (4) in which a working medium circulates. Said conduction circuit (4) comprises at least one pump (6, 13), at least one heat exchanger (8), an expansion machine (10), a feedwater tank (14) for storing the liquid working medium, and a condenser (12). Components of the conduction circuit (4) 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 (6, 13) continues to operate in order to evacuate the working medium at least from the pump (6, 13) which continues to operate.
    Type: Application
    Filed: February 24, 2012
    Publication date: March 20, 2014
    Applicant: ROBERT BOSCH GMBH
    Inventors: Gregory Rewers, Nadja Eisenmenger, Achim Brenk, Dieter Seher, Hans-Christoph Magel, Andreas Wengert