Patents by Inventor Michael Schebitz

Michael Schebitz 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: 6074500
    Abstract: A method for producing a metal component which is made up of at least two partial elements with differing material properties is distinguished in that a first partial element made of a steel material, which can be tempered, is preassembled in a recess in a second partial element made of a magnetic iron material of low retentivity. A copper based solder is applied to the preassembled component at the recess in the transition area between the first partial element and the second partial element. Thereafter, the component is heated to a temperature which lies above the melting temperature of the solder. After the liquid solder has been distributed in a contact area of the two partial elements, the component is cooled. The component is then brought at least once to the tempering temperature of the steel material of the first partial element, is maintained at this temperature for a predetermined length of time and then is completely cooled.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: June 13, 2000
    Assignee: FEV Motorentechnik GmbH & Co. KG
    Inventors: Michael Schebitz, Franz-Reiner Carduck
  • Patent number: 5917692
    Abstract: A method is provided for reducing an impact speed of an armature on a pole face of an electromagnet in an electro-magnetic actuator, in which the armature moves toward the pole face against a restoring spring force when the coil of the electromagnet is charged with current. The method includes limiting a voltage applied to the coil to a predeterminable maximum value as the armature approaches the pole face so that a current flowing through the coil drops for a portion of the time of the voltage limitation.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: June 29, 1999
    Assignee: Fev Motorentechnik GmbH & Co. Kommanditgesellschaft
    Inventors: Guenter Schmitz, Martin Pischinger, Thomas Goebel, Michael Schebitz, Ekkehard Schrey
  • Patent number: 5905625
    Abstract: A method of operating an electromagnetic actuator having an electromagnet provided with a pole face, an armature movable towards and away from the pole face and a resetting spring exerting on the armature a resetting force urging the armature away from the pole face, includes the steps of supplying current to the electromagnet for generating an electromagnetic force moving the armature towards the pole face against the resetting force; and controlling the current supplying step such that at least along a terminal portion of the displacement path of the armature during its approach toward said pole face, the force/time curve of the magnetic force extends substantially parallel to and lies above the force/displacement spring curve of the resetting spring.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: May 18, 1999
    Assignee: FEV Motorentechnik GmbH & Co. KG
    Inventor: Michael Schebitz
  • Patent number: 5878704
    Abstract: An electromagnetic actuator, particularly for operating a cylinder valve of an internal-combustion engine, includes an electromagnet for generating an attracting electromagnetic force; an armature movable into contact with and away from the electromagnet; a spring arrangement connected to the armature and opposing the electromagnetic force; and a sound muffling device attached to the electromagnet for reducing sound transmission by body vibration from the electromagnet.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: March 9, 1999
    Assignee: FEV Motorentechnik GmbH & Co. KG
    Inventors: Michael Schebitz, Franz Pischinger
  • Patent number: 5813653
    Abstract: An electromagnetic actuator operating a cylinder valve of an internal-combustion engine includes first and second spaced electromagnets having pole faces oriented toward one another; an armature arranged for reciprocating motion between the pole faces; and a connecting rod having a first rod part being in an abutting contact with a first side of the armature and being a component separate therefrom. The abutting contact is such as to prevent a torque transmission between the first rod part and the armature. The connecting rod has a second rod part which is rigidly affixed to a second side of the armature and extending towards the cylinder valve.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: September 29, 1998
    Assignee: FEV Motorentechnik GmbH & Co. KG
    Inventors: Thomas Esch, Martin Pischinger, Michael Schebitz
  • Patent number: 5785018
    Abstract: An adjustment device for a cam-controlled valve operation in a piston-type internal combustion engine includes a camshaft adapted for actuating intake or exhaust valves of the piston-type internal combustion engine. The camshaft has a camshaft axis and includes an end having a guide surface. A transmission element constituting a magnetic armature is arranged for being moved back and forth in a direction of the camshaft axis. The transmission element includes an inner guide element opposite from and corresponding to the guide surface and a carrier element at a radial distance from the inner guide element that meshes with a corresponding carrier surface on a drive wheel, and is positioned for being twisted coaxially and relative to the camshaft. At least one of the guide surface on the camshaft and the carrier surface on the drive wheel is aligned in a helical shape relative to the camshaft axis.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: July 28, 1998
    Assignee: FEV Motorentechnik GmbH & Co KG
    Inventor: Michael Schebitz
  • Patent number: 5762035
    Abstract: An internal-combustion engine includes a cylinder head; a cylinder valve supported for reciprocating motion in the cylinder head to assume open and closed positions; and an electromagnetic actuator for operating the cylinder valve. The electromagnetic actuator includes a housing; and a first and a second electromagnet received in the housing and secured thereto at a fixed distance from one another. The first electromagnet has a first pole face and the second electromagnet has a second pole face oriented toward the first pole face. The actuator further has an armature positioned between the first and second pole faces for a reciprocating motion therebetween; return springs arranged for exerting oppositely oriented forces on the armature, whereby the armature executes reciprocating motion against a spring force; a connecting arrangement for coupling the armature to the stem of the cylinder valve; and a setting unit for displacing the housing relative to the cylinder valve.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: June 9, 1998
    Assignee: FEV Motorentechnik GmbH & Co. KG
    Inventor: Michael Schebitz
  • Patent number: 5730102
    Abstract: An internal combustion engine includes an intake valve for controlling a cylinder intake port; an exhaust valve for controlling a cylinder exhaust port; first and second valve lifters coupled to the intake and exhaust valves, respectively, for cyclically opening and closing the intake and exhaust valves during normal engine operation; and an actuating device for contacting the exhaust valve and for operating the exhaust valve independently from the second valve lifter. The actuating device has a withdrawn position and a valve-contacting position. In the withdrawn position the actuating device is out of contact with the exhaust valve and in the valve-contacting position the actuating device is in contact with the exhaust valve. There is further provided an electromagnetically-operating setting device having an inoperative position assumed for a normal engine operation and an operative position assumed for an engine-braking operation.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: March 24, 1998
    Assignee: FEV Motorentechnik GmbH & Co. Kommanditgesellschaft
    Inventors: Manfred Arnold, Michael Schebitz, Hermann-Josef Ecker
  • Patent number: 5647312
    Abstract: A four-stroke Otto engine. At least two intake valves of the engine have an open position and a closed position, and include a main intake valve and an additional intake valve. A camshaft moves the main intake valve into its open position and into its closed position, and a transmission element transmits a motion of the camshaft to the main intake valve. The transmission element includes a cutoff apparatus actuatable independently of the camshaft for cutting off a transmission of the actuation of the camshaft to the main intake valve for keeping the main intake valve in its closed position in a lower partial load and rpm range of the engine. An operating apparatus connected to the additional intake valve actuates the additional intake valve independently of the actuation of the main intake valve for moving the additional intake valve into its open position in a lower partial load and rpm range of the engine and into its closed position in an upper partial load and rpm range of the engine.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: July 15, 1997
    Assignee: FEV Motorentechnik GmbH & Co. Kommanditgesellschaft
    Inventors: Wolfgang Salber, Thomas Esch, Michael Schebitz