Patents by Inventor Hans-Wilhelm Wienholt

Hans-Wilhelm Wienholt 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).

  • Patent number: 6799665
    Abstract: A hydrodynamic torque converter includes a converter housing and a turbine wheel which is arranged in the converter housing and is rotatable with respect to the converter housing about a rotational axis of the converter The torque converter further includes a lockup clutch for producing a torque transmission connection between the converter housing and the turbine wheel.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: October 5, 2004
    Assignee: Mannesmann Sachs AG
    Inventors: Christoph Sasse, Wolfgang Kundermann, Hans-Wilhelm Wienholt, Wolfgang Gude, Dietrich Bechmann, Erwin Wack
  • Patent number: 6634474
    Abstract: A hydrodynamic torque converter includes a converter housing and a turbine wheel which is arranged in the converter housing and is rotatable with respect to the converter housing about a rotational axis of the converter. The torque converter further includes a lockup clutch for producing a torque transmission connection between the converter housing and the turbine wheel.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: October 21, 2003
    Assignee: Mannesmann Sach AG
    Inventors: Christoph Sasse, Wolfgang Kundermann, Hans-Wilhelm Wienholt, Wolfgang Gude, Dietrich Bechmann, Erwin Wack
  • Publication number: 20020033310
    Abstract: A hydrodynamic torque converter includes a converter housing and a turbine wheel which is arranged in the converter housing and is rotatable with respect to the converter housing about a rotational axis of the converter. The torque converter further includes a lockup clutch for producing a torque transmission connection between the converter housing and the turbine wheel.
    Type: Application
    Filed: November 16, 2001
    Publication date: March 21, 2002
    Applicant: Mannesmann Sachs AG
    Inventors: Christoph Sasse, Wolfgang Kundermann, Hans-Wilhelm Wienholt, Wolfgang Gude, Dietrich Bechmann, Erwin Wack
  • Patent number: 6266958
    Abstract: A stator wheel for a hydrodynamic torque converter comprises a stator wheel hub arrangement and a plurality of stator wheel blades arranged successively in the circumferential direction of the stator wheel hub arrangement. Each stator wheel blade has a radial inner flow-around profile area and a radial outer flow-around profile area such that a flow-around profile in the radial outer flow-around profile area differs from a flow-around profile in the radial inner flow-around profile area.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: July 31, 2001
    Assignee: Mannesmann Sachs AG
    Inventors: Christoph Sasse, Hans-Wilhelm Wienholt
  • Patent number: 6226985
    Abstract: A turbine wheel arrangement for a hydrodynamic torque converter comprises an outer shell connected with a turbine wheel hub for common rotation and a plurality of blades arranged successively along the circumferential direction at the outer shell. A side of the blades remote from the outer shell is connected to an inner shell so that fluid flow channels are formed between adjacent ones of the blades together with the outer shell and the inner shell. At least one of the blades has an outer blade area lying closer to the outer shell that has a blade contour adapted to a first operating state, especially a starting operation, of a torque converter and an inner blade area lying closer to the inner shell that has a blade contour adapted to a second operating state, especially a driving state, of the torque converter.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: May 8, 2001
    Assignee: Mannesmann Sachs AG
    Inventors: Christoph Sasse, Hans-Wilhelm Wienholt
  • Patent number: 5988981
    Abstract: A pump impeller for a hydrodynamic torque converter with a flange and a hub located radially inside and extending in the axial direction. The hub has a seat for a bearing and a sleeve is connected by a pressure fit to the pump impeller. The sleeve extends in the direction of the hub and forms the seat of the bearing.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: November 23, 1999
    Assignee: Mannesmann Sachs AG
    Inventors: Uwe Dehrmann, Wilfried Glock, Rudiger Hinkel, Rothard Schneider, Peter Volland, Reinhold Weckesser, Hans-Wilhelm Wienholt
  • Patent number: 5813227
    Abstract: Hydrodynamic torque converter which comprises blade wheels in the form of a reactor, a pump wheel and a turbine wheel with individual blades which are connected to an outer wall, whereby a torque can be transmitted from the pump wheel to the turbine wheel by means of pressure medium which flows along a flow path from the pump wheel to the turbine wheel, and is transported via the reactor back to the pump wheel, whereby at least one blade wheel comprises at least one stabilizer ring which creates a connection of the individual blades on their exposed sides, and by means of which stabilizer ring the flow path of the pressure medium can be influenced to reduce the flow losses.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: September 29, 1998
    Assignee: Fichtel & Sachs AG
    Inventors: Uwe Dehrmann, Wilfried Glock, Rudiger Hinkel, Ruthard Schneider, Peter Volland, Reinhold Weckesser, Hans-Wilhelm Wienholt
  • Patent number: 5732804
    Abstract: A hydrokinetic torque converter is provided with a lockup clutch which comprises a piston which can be displaced in the axial direction and can be connected with the converter housing by means of at least one friction lining. The piston, on its side facing the converter housing, defines a chamber in which, when the lockup clutch is active, a pressure is applied which is lower than the pressure of the converter circuit. In the vicinity of the friction surface, there is at least one depression for the flow of hydraulic fluid from the converter circuit. The depression empties in the vicinity of the radially inner end of the friction lining into the chamber, and has at least one connection to at least one recess in the piston, whereby the recess is designed to generate a pressure reduction with respect to the pressure in converter circuit, and is designed with a smaller cross section area than the connection or the depression.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: March 31, 1998
    Assignee: Fichtel & Sachs AG
    Inventor: Hans-Wilhelm Wienholt
  • Patent number: 5669474
    Abstract: A hydrodynamic torque converter is designed with a lock-up clutch which comprises a piston which can be extended in the axial direction and can be connected by at least one friction lining to the converter housing. The friction lining is designed with a multiplicity of depressions for the flow of hydraulic fluid, preferably oil, from the converter circuit, whereby the depressions extend between the radially outside edge and the radially inside edge of the friction lining in the circumferential direction at a specified angle, with a changing radial distance from the axis of rotation of the friction lining. Each depression changes its longitudinal direction between each inlet and outlet for the oil at least once, so that its radial component is oriented opposite to its orientation before the change.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: September 23, 1997
    Assignee: Fichtel & Sachs AG
    Inventors: Uwe Dehrmann, Peter Volland, Hans-Wilhelm Wienholt
  • Patent number: 5667043
    Abstract: A hydrodynamic torque converter consists of a pump wheel driven by an internal combustion engine, a turbine wheel coupled to a drive shaft, and a stator which can be blocked in one direction of rotation. These wheels, together form a converter circuit filled with a hydraulic fluid, preferably oil, which interacts with a lock-up clutch.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: September 16, 1997
    Assignee: Fichtel & Sachs AG
    Inventors: Uwe Dehrmann, Peter Volland, Hans-Wilhelm Wienholt