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: 20140075934
    Abstract: A line circuit (4) and a method for operating a line circuit (4) for waste-heat utilization of an internal combustion engine (2) are proposed. A working medium circulates in the line circuit (4). The line circuit (4) contains a feed pump (6), at least one heat exchanger (8), an expansion machine (10), a feed-water container (14), in order to store the liquid working medium, and a condenser (12), wherein the feed-water container (14) is connected to the feed pump (6) by way of a line (29). The feed pump (6) has a return-flow line (30), via which liquid working medium can be discharged from the feed pump (6).
    Type: Application
    Filed: April 27, 2012
    Publication date: March 20, 2014
    Applicant: ROBERT BOSCH GMBH
    Inventors: Gregory Rewers, Nadja Eisenmenger, Achim Brenk, Dieter Seher, Hans-Christoph Magel, Andreas Wengert
  • Patent number: 8672610
    Abstract: The invention relates to a unit assembly system for the manufacture of exhaust-gas turbochargers (1) for internal combustion engines, of motor vehicles in particular, wherein the respective exhaust-gas turbocharger (1) has at least one hydrodynamic axial plain bearing (6) for supporting axial forces of a turbine wheel and/or of a compressor wheel (5) on a housing (7), said axial plain bearing having with regard to an axis of rotation (3) of a shaft (2) supporting the turbine wheel and/or the compressor wheel (5) a plurality of wedge-shaped bearing segments (9) distributed in the circumferential direction, which bearing segments work together with at least one level, annular thrust surface (10, 11) that extends transversely to the axis of rotation (3).
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: March 18, 2014
    Assignee: Bosch Mahle Turbo Systems GmbH & Co. KG
    Inventors: Thomas Berger, Andreas Wengert
  • Patent number: 8662833
    Abstract: 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.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: March 4, 2014
    Assignee: Bosch Mahle Turbo Systems GmbH & Co. KG
    Inventors: Andreas Wengert, Timo Tries, Matthias Stein
  • Publication number: 20130283790
    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: Application
    Filed: September 7, 2011
    Publication date: October 31, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Gregory Rewers, Nadja Eisenmenger, Achim Brenk, Dieter Seher, Hans-Christoph Magel, Andreas Wengert
  • Publication number: 20130192225
    Abstract: The invention relates to a device and a method for the recovery of waste heat from an internal combustion engine (2). 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 steam accumulator (40) for storing the vaporous working medium is also arranged in the circuit (4).
    Type: Application
    Filed: September 7, 2011
    Publication date: August 1, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Gregory Rewers, Nadja Eisenmenger, Achim Brenk, Dieter Seher, Hans-Christoph Magel, Andreas Wengert
  • Publication number: 20130174693
    Abstract: The invention relates to an electromagnetic clutch (4) which is used to connect a steam engine (2) to a combustion engine (3) and which comprises a first shaft (8) that can be driven by the steam engine (2), and a second shaft (9) that can be driven by the combustion engine (3), an idler gear (23) being connected to the first shaft (8) and a clutch bell (26) being connected to the second shaft (9). A freewheel (27) is provided between the idler gear (23) and the clutch bell (26) and is used to transmit a rotational movement from the idler gear (23), which is connected to the first shaft (8), onto the clutch bell (26) and allows the clutch bell (26) to freewheel in relation to the idler gear (23). An electromagnetic actuation force can furthermore generate a frictional force between the idler gear (23) and the clutch bell (26) to carry along the steam engine (2).
    Type: Application
    Filed: June 8, 2011
    Publication date: July 11, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Nadja Eisenmenger, Achim Brenk, Hans-Christoph Magel, Andreas Wengert
  • Publication number: 20130118175
    Abstract: A piston engine (1) that can be driven using a steam power process and is used in particular for utilizing waste heat from an internal combustion engine comprises at least one cylinder bore (4), a cylinder piston (5) which is arranged in the cylinder bore (4), and a rod (20) which is connected to the cylinder piston (5). The rod (20) is guided out of the cylinder bore (4). The cylinder piston (5) delimits a first operating space (9) and a second operating space (10) in the cylinder bore (4). A crankshaft (22) is disposed in a crankshaft space (21). The rod (20) is connected to a slider crank mechanism (23) which is disposed in the crankshaft space (21), the rod (20) being effectively connected to the crankshaft (22) via the slider crank mechanism (23), thus making it possible to obtain a large expansion volume while keeping the design of the piston engine (1) compact.
    Type: Application
    Filed: July 7, 2011
    Publication date: May 16, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Nadja Eisenmenger, Hans-Christoph Magel, Andreas Wengert
  • Publication number: 20130118174
    Abstract: A piston engine (1) that can be driven using a steam power process and is used in particular for utilizing the waste heat from an internal combustion engine comprises a cylinder bore (5), a cylinder piston (6) which is arranged in the cylinder bore (5) and delimits an operating space (8) in the cylinder bore (5), a rod (21) which is connected to the cylinder piston (6), and a bearing point (37) on which the rod (21) and the cylinder piston (6) connected to the rod (21) are mounted. A peripheral gap (28) is predefined between the cylinder piston (6) and the cylinder bore (5), thus preventing frictional wear between the cylinder piston (6) and the cylinder bore (5), which is particularly advantageous when a water-based working fluid is conducted through the operating space (8) since steam has no lubricity.
    Type: Application
    Filed: July 6, 2011
    Publication date: May 16, 2013
    Applicant: ROBERT BOSCH GMBH
    Inventors: Nadja Eisenmenger, Hans-Christoph Magel, Andreas Wengert
  • Patent number: 8262346
    Abstract: The invention relates to a variable turbine geometry (12) of a supercharging device, in particular an exhaust gas turbocharger for an internal combustion engine. The variable turbine geometry (12) comprises guide vanes (30) that are assigned to the circumference of a turbine rotor and are operated by means of a control ring (22) that is accommodated on journals (16) of the guide vanes (30). The control ring (22) is locked on these supporting journals (16) of the guide vanes (30).
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: September 11, 2012
    Assignee: Bosch Mahle Turbo Systems GmbH & Co. KG
    Inventors: Andreas Wengert, Markus Eble
  • Patent number: 8172500
    Abstract: 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 (5) comprises in the support area (15) at least one recess (17) which is open-edged towards the guide vane cover ring (9), and through which the medium can flow.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: May 8, 2012
    Assignee: Bosch Mahle Turbo Systems GmbH & Co. KG
    Inventors: Claus Fleig, Matthias Stein, Andreas Wengert
  • Patent number: 8118539
    Abstract: The present disclosure relates to an exhaust gas turbocharger for a motor vehicle. The turbocharger includes a turbine housing having a first area in which exhaust is carried to a turbine wheel and in which the turbine wheel is essentially situated and having a second area connected axially to the first area, such that the first area and the second area are essentially separated from one another by a separating element. It is provided that for thermal insulation, the separating element is made of a material having a low thermal conduction and/or thermal capacity.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: February 21, 2012
    Assignee: Bosch Mahle Turbo Systems GmbH & Co. KG
    Inventors: Markus Eble, Andreas Wengert
  • Publication number: 20110038742
    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: Application
    Filed: January 19, 2009
    Publication date: February 17, 2011
    Inventors: Claus Fleig, Matthias Stein, Timo Tries, Andreas Wengert
  • Patent number: 7878427
    Abstract: An injector having an injector body to which a fuel line is connected for delivering fuel at high pressure. A filter bore is formed in the body and a fuel filter is disposed, through which filter the delivered fuel flows. A sealing seat is formed in the filter bore against which seat the end of the fuel line is pressed upon fastening of the fuel line to the injector body. The filter bore discharges at the outside of the injector body. The sealing seat is disposed with its longitudinal axis inclined to the longitudinal axis of the filter bore, and in the injector body, a bore extending at least approximately coaxially to the sealing seat is provided, into which the end region of the fuel line plunges. By the end region, plunging into the bore, of the fuel line, an outer end region of the filter bore, discharging at the outside of the injector body, is separated from an inner end region, subjected to high pressure, of the filter bore, and the fuel filter is disposed in the inner end region of the filter bore.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: February 1, 2011
    Assignee: Robert Bosch GmbH
    Inventor: Andreas Wengert
  • Publication number: 20110014034
    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: Application
    Filed: January 9, 2009
    Publication date: January 20, 2011
    Inventors: Dirk Bl├╝mmel, Claus Fleig, Matthias Stein, Andreas Wengert
  • Publication number: 20100232937
    Abstract: The invention relates to a charging device, more preferably a turbocharger, with a spring for clamping the guide blade carrier (9) against a stop device arranged opposite the spring such as for example a plurality of spacer elements (12) or the like. Particularly advantageous is the use of a cantilever spring (3), as a result of which a region of high thermal load of the cantilever spring (3) can be separated from a region of high mechanical load.
    Type: Application
    Filed: March 5, 2010
    Publication date: September 16, 2010
    Inventors: Andreas Wengert, Timo Tries, Matthias Stein
  • Publication number: 20100196146
    Abstract: 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.
    Type: Application
    Filed: January 14, 2010
    Publication date: August 5, 2010
    Inventors: Andreas Wengert, Timo Tries, Matthias Stein
  • Patent number: 7748364
    Abstract: The invention relates to a fuel-injection system (102), in which a rail (120) is provided for each injector between a high-pressure fuel pump (111) and said injectors (116).
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: July 6, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Juergen Hanneke, Andreas Wengert, Kurt Blank
  • Publication number: 20100129212
    Abstract: The invention relates to a unit assembly system for the manufacture of exhaust-gas turbochargers (1) for internal combustion engines, of motor vehicles in particular, wherein the respective exhaust-gas turbocharger (1) has at least one hydrodynamic axial plain bearing (6) for supporting axial forces of a turbine wheel and/or of a compressor wheel (5) on a housing (7), said axial plain bearing having with regard to an axis of rotation (3) of a shaft (2) supporting the turbine wheel and/or the compressor wheel (5) a plurality of wedge-shaped bearing segments (9) distributed in the circumferential direction, which bearing segments work together with at least one level, annular thrust surface (10, 11) that extends transversely to the axis of rotation (3).
    Type: Application
    Filed: November 20, 2009
    Publication date: May 27, 2010
    Inventors: Thomas Berger, Andreas Wengert
  • Publication number: 20090257867
    Abstract: 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 (5) comprises in the support area (15) at least one recess (17) which is open-edged towards the guide vane cover ring (9), and through which the medium can flow.
    Type: Application
    Filed: January 21, 2009
    Publication date: October 15, 2009
    Inventors: Claus Fleig, Matthias Stein, Andreas Wengert
  • Publication number: 20090252601
    Abstract: The invention relates to a variable turbine geometry (12) of a supercharging device, in particular an exhaust gas turbocharger for an internal combustion engine. The variable turbine geometry (12) comprises guide vanes (30) that are assigned to the circumference of a turbine rotor and are operated by means of a control ring (22) that is accommodated on journals (16) of the guide vanes (30). The control ring (22) is locked on these supporting journals (16) of the guide vanes (30).
    Type: Application
    Filed: February 5, 2009
    Publication date: October 8, 2009
    Inventors: Andreas Wengert, Markus Eble