Patents by Inventor Volker Middelmann

Volker Middelmann 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: 20150369351
    Abstract: The invention relates to a pumping device for introduction of a fluid into a base layer, in particular into a base layer containing gas, for the production of gas-permeable structures in the base layer. The pumping device is arranged on a transportation vehicle having a separate drive unit, including a pump motor and a pump, whereby a speed/torque converter is arranged between pump and pump motor. A hydrodynamic device, in particular a hydrodynamic converter, is used in place of a transmission for speed/torque conversion.
    Type: Application
    Filed: June 22, 2015
    Publication date: December 24, 2015
    Applicant: Voith Patent GmbH
    Inventors: Andreas Hermann, Volker Middelmann, Reinhard Kernchen, Hans Schirle
  • Publication number: 20130180241
    Abstract: The invention concerns a conveyor system for oil or gas with an engine, which generates an exhaust gas flow 4; with a conveying device (2) driven by the engine in the form of a pump or compressor, which conveys and/or compresses said oil or said gas; with an exhaust gas energy recovery device, which converts the heat of the exhaust gas flow (4) into mechanical energy.
    Type: Application
    Filed: February 18, 2012
    Publication date: July 18, 2013
    Applicant: Voith Patent GMBH
    Inventors: Volker Middelmann, Andreas Herrmann, Maik Tietz, Daniel Flemmer, Thomas Vogel, Jurgen Berger, Stephan Bartosch
  • Patent number: 7231865
    Abstract: A swiveling motor for a divided stabilizer in an area of a vehicle axle, in which a housing is closed off in a region of its end surfaces by lids. A differential pressure regulating valve located coaxially with the housing and having at least one electromagnet, and two springs of different spring load deflection characteristics directed opposite to one another. One of these springs has a lower spring load deflection characteristic in a region of the electromagnet.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: June 19, 2007
    Assignee: Thyssenkrupp Automotive AG
    Inventors: Holger Wehaus, Volker Middelmann
  • Publication number: 20050247053
    Abstract: An oscillating motor for a two-part stabilizer in the vicinity of a motor vehicle axis. The motor has at least one housing which is closed by covers in vicinity of its end faces and holds a rotor in addition to a valve. This valve is a pressure differential control valve positioned coaxially with the housing, and contains at least one electromagnet.
    Type: Application
    Filed: June 6, 2005
    Publication date: November 10, 2005
    Inventors: Holger Wehaus, Volker Middelmann
  • Patent number: 6367605
    Abstract: The housing of a hydrokinetic torque converter in the power train between the engine and the transmission of a motor vehicle contains a lockup valve which can be engaged to transmit torque directly from the output element of the engine to the output member of the turbine in the housing. Engagement of the lockup clutch at a relatively low RPM of the engine and/or under certain other circumstances is prevented or minimized by the provision of one or more valves which are designed to establish or to at least partially seal one or more paths for direct flow of hydraulic fluid between two compartments forming part of a chamber in the housing of the torque converter and being disposed at opposite sides of the axially movable piston of the lockup clutch. The valve or valves can be designed to react in response to changing RPM of the housing of the torque converter, in response to changes of the temperature of hydraulic fluid in the housing and/or in response to changes of the viscosity of such fluid.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: April 9, 2002
    Assignee: LuK Getriebe-Systeme GmbH
    Inventors: Volker Middelmann, Jürgen Freitag, Marc Meisner
  • Patent number: 6321891
    Abstract: A hydrokinetic torque converter in the power train between the engine and the wheels of a motor vehicle has a rotary engine-driven housing which is of one piece with a pump and contains a rotary turbine having a hub which drives the input shaft of a transmission. A lockup clutch can be engaged, either entirely or with slip, to transmit torque from the housing or from the pump to the hub of the turbine. Such clutch can employ flat or conical friction linings and/or friction surfaces, for example, a friction lining on the shell of the turbine and a friction surface on a wall of the housing. The shell of the turbine in the torque converter employing such clutch is movable axially to advance the friction lining into or from engagement with the friction surface. Alternatively, the lockup clutch can be installed in a torus which is defined by the turbine and the pump of the torque converter, and such clutch can be cooled by one or more streams of a hydraulic fluid.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: November 27, 2001
    Assignee: LuK Getriebe-System GmbH
    Inventors: Steven Olsen, Johannes Hahn, Volker Middelmann, Hubert Friedmann, Marc Meisner
  • Patent number: 6293379
    Abstract: A hydrokinetic torque converter for use with a transmission in the power train of a motor vehicle has a housing rotatable by the engine and containing a pump, a turbine and at least one stator as well as a rotary output device connected to the input shaft of the transmission. The pump is normally rotatable by the housing; the turbine is rotatable (a) by the fluid which is circulated by the pump or (b) by the housing in response to engagement of a lockup clutch; and the stator can be connected to the stationary case of the transmission or is rotatable by the circulating fluid. First and second hubs are non-rotatably but axially movably mounted on the output member and are respectively connectable with the turbine and the stator by suitable clutches.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: September 25, 2001
    Assignee: LuK Getriebe-Systeme GmbH
    Inventors: Mircea Gradu, Uwe Wagner, Volker Middelmann, Shailesh Kozarekar, Edmund Maucher, Wolfgang Reik
  • Patent number: 6289674
    Abstract: A hydrokinetic torque converter, which exhibits important advantages regarding the consumption of fuel and the operation at low RPM in the power train of a motor vehicle, has a stator, a pump and a turbine which jointly form a toroidal structure having a meridian cross-sectional outline which is asymmetrical with reference to at least one axis other than the rotational axis of the housing of the torque converter.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: September 18, 2001
    Assignee: Luk Getriebe-Systeme GmbH
    Inventors: Clemens Halene, Allan Biber, Volker Middelmann, Ravishankar Gundlapalli
  • Patent number: 6193037
    Abstract: A hydrodynamic torque converter wherein the housing is connected to the output element of an engine in the power train of a motor vehicle and receives a coaxial hub which is rotatable by the turbine wheel in the housing or by a clutch disk forming part of a lockup clutch and being axially movably but non-rotatably mounted on the hub. The lockup clutch further comprises a piston which is rotatably and axially movably mounted on the hub, and a laimina which is non-rotatably but axially movably mounted in the housing and extends radially inwardly between the piston and the clutch disk. The clutch is engaged when the piston is moved axially of the housing to thus urge the lamina against the clutch disk and to thus bias the clutch disk against an adjacent wall of the housing so that the clutch disc then transmits torque between the housing and the hub to thus bypass the torque transmitting connection between the housing and the hub by way of a satator wheel in the housing and the turbine wheel.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: February 27, 2001
    Assignee: Luk Getreibe-Systeme GmbH
    Inventors: Volker Middelmann, Wendy Boman, Mircea Gradu
  • Patent number: 6099435
    Abstract: The invention relates to a power train which is to be utilized in a motor vehicle and employs a hydrokinetic torque converter--lockup clutch--electronic control system assembly operating in such a way that the lockup clutch is already at least partially engaged while the engine of the motor vehicle is running but the vehicle is at a standstill. This reduces the likelihood of the development of shocks during shifting of a manual, automated or continuously variable transmission which receives torque from the output element of the torque converter. Another feature of the invention resides in the provision of a compact, lightweight and inexpensive design of the torus composed of the impeller, reactor and stator of the hydrokinetic torque converter.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: August 8, 2000
    Assignee: Luk Getriebe-Systeme GmbH
    Inventors: Clemens Halene, Ravi Gundlapalli, Allan Biber, Volker Middelmann, Bruno Muller
  • Patent number: 6050375
    Abstract: A hydrokinetic torque converter for use with a transmission in the power train of a motor vehicle has a housing rotatable by the engine and containing a pump, a turbine and at least one stator as well as a rotary output device connected to the input shaft of the transmission. The pump is normally rotatable by the housing; the turbine is rotatable (a) by the fluid which is circulated by the pump or (b) by the housing in response to engagement of a lockup clutch; and the stator can be connected to the stationary case of the transmission or is rotatable by the circulating fluid. First and second hubs are non-rotatably but axially movably mounted on the output member and are respectively connectable with the turbine and the stator by suitable clutches.
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: April 18, 2000
    Assignee: LuK Getriebe-Systeme GmbH
    Inventors: Mircea Gradu, Uwe Wagner, Volker Middelmann, Shailesh Kozarekar, Edmund Maucher, Wolfgang Reik
  • Patent number: 5813505
    Abstract: A hydrokinetic torque converter in the power train between the engine and the wheels of a motor vehicle has a rotary engine-driven housing which is of one piece with a pump and contains a rotary turbine having a hub which drives the input shaft of a transmission. A lockup clutch can be engaged, either entirely or with slip, to transmit torque from the housing or from the pump to the hub of the turbine. Such clutch can employ flat or conical friction linings and/or friction surfaces, for example, a friction lining on the shell of the turbine and a friction surface on a wall of the housing. The shell of the turbine in the torque converter employing such clutch is movable axially to advance the friction lining into or from engagement with the friction surface. Alternatively, the lockup clutch can be installed in a torus which is defined by the turbine and the pump of the torque converter, and such clutch can be cooled by one or more streams of a hydraulic fluid.
    Type: Grant
    Filed: July 18, 1996
    Date of Patent: September 29, 1998
    Assignee: LuK Getriebe-Systeme GmbH
    Inventors: Steven Olsen, Johannes Hahn, Volker Middelmann, Hubert Friedmann, Marc Meisner
  • Patent number: 5779012
    Abstract: The housing of a hydrokinetic torque converter in the power train between the engine and the transmission of a motor vehicle contains a lockup valve which can be engaged to transmit torque directly from the output element of the engine to the output member of the turbine in the housing. Engagement of the lockup clutch at a relatively low RPM of the engine and/or under certain other circumstances is prevented or minimized by the provision of one or more valves which are designed to establish or to at least partially seal one or more paths for direct flow of hydraulic fluid between two compartments forming part of a chamber in the housing of the torque converter and being disposed at opposite sides of the axially movable piston of the lockup clutch. The valve or valves can be designed to react in response to changing RPM of the housing of the torque converter, in response to changes of the temperature of hydraulic fluid in the housing and/or in response to changes of the viscosity of such fluid.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: July 14, 1998
    Assignee: Luk Getriebe-Systeme GmbH
    Inventors: Volker Middelmann, Marc Meisner, Jurgen Freitag