Patents by Inventor Andreas Biermann

Andreas Biermann 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: 11215088
    Abstract: A preassembled module for a variable-lift valve drive of an internal combustion engine is provided for installation into a cylinder head. The module has a base plate with an electric linear actuator which lies on an upper side of the base plate. A guide plate, which lies on the upper side, has an outer side wall arranged to guide a slide piece. The guide piece extends below the base plate two downwardly pointing actuating fingers. Each respective actuating finger has a contact surface for moving a transverse coupling slide of a switchable rocker arm. The slide piece has a bracket which protrudes over the guide plate with a contact landing arm which runs transversely relative to the electric linear actuator. An actuator-side end of the contact landing arm is in contact with an actuating pin of the electric linear actuator to move the slide piece.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: January 4, 2022
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Andreas Biermann, Benedikt Noe, Martin Steigerwald, Michael Pribek, Frank Himsel
  • Patent number: 11193396
    Abstract: A pre-assembled module for a variable-stroke valve drive of an internal combustion engine is provided. The module includes a base plate having at least one projecting guide plate, an e-linear actuator positioned on the projecting guide plate, and a longitudinally guided push rod with two adjusting fingers extending along a wall of the guide plate. Each respective adjusting finger has a contact surface for displacement of a transverse coupling slide of a switchable cam follower. A rocker arm, having first and second arms, is suspended on an underside of the base plate; the first arm in contact with an adjusting pin of the linear actuator; and, the second arm in contact with the push rod for displacement thereof in a first direction. A spring means for displacement of the push rod in a second direction is arranged between the push rod and the guide plate.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: December 7, 2021
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Andreas Biermann, Benedikt Noe, Martin Steigerwald, Michael Pribek, Frank Himsel
  • Publication number: 20210324767
    Abstract: A preassembled module for a variable-lift valve drive of an internal combustion engine is provided for installation into a cylinder head. The module has a base plate with an electric linear actuator which lies on an upper side of the base plate. A guide plate, which lies on the upper side, has an outer side wall arranged to guide a slide piece. The guide piece extends below the base plate two downwardly pointing actuating fingers. Each respective actuating finger has a contact surface for moving a transverse coupling slide of a switchable rocker arm. The slide piece has a bracket which protrudes over the guide plate with a contact landing arm which runs transversely relative to the electric linear actuator. An actuator-side end of the contact landing arm is in contact with an actuating pin of the electric linear actuator to move the slide piece.
    Type: Application
    Filed: June 11, 2019
    Publication date: October 21, 2021
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Andreas Biermann, Benedikt Noe, Martin Steigerwald, Michael Pribek, Frank Himsel
  • Publication number: 20200011212
    Abstract: A pre-assembled module for a variable-stroke valve drive of an internal combustion engine is provided. The module includes a base plate having at least one projecting guide plate, an e-linear actuator positioned on the projecting guide plate, and a longitudinally guided push rod with two adjusting fingers extending along a wall of the guide plate. Each respective adjusting finger has a contact surface for displacement of a transverse coupling slide of a switchable cam follower. A rocker arm, having first and second arms, is suspended on an underside of the base plate; the first arm in contact with an adjusting pin of the linear actuator; and, the second arm in contact with the push rod for displacement thereof in a first direction. A spring means for displacement of the push rod in a second direction is arranged between the push rod and the guide plate.
    Type: Application
    Filed: June 28, 2019
    Publication date: January 9, 2020
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Andreas Biermann, Benedikt Noe, Martin Steigerwald, Michael Pribek, Frank Himsel
  • Patent number: 10422255
    Abstract: A hydraulic support element for a variable valve train of an internal combustion engine, which has a cylindrical pot-shaped housing and a hollow cylindrical piston guided for movement in this housing and whose inner end is supported by a compression spring on the base wall of the housing. The outer end extends past the housing and is formed as a hemispherical bearing head. The interior is divided into an inner supply pressure space and an outer switching pressure space that are connected by inlet openings in the cylindrical side walls of the housing and the piston with a cylinder head side supply pressure line and by a non-return valve to a high-pressure space enclosed between the inner end of the piston and the base wall of the housing, or to a cylinder head side switching pressure line and also by a central hole formed in the bearing head to a rocker arm side switching pressure channel.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: September 24, 2019
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Andreas Biermann, Matthias Ammann
  • Publication number: 20180355768
    Abstract: A hydraulic support element for a variable valve train of an internal combustion engine, which has a cylindrical pot-shaped housing and a hollow cylindrical piston guided for movement in this housing and whose inner end is supported by a compression spring on the base wall of the housing. The outer end extends past the housing and is formed as a hemispherical bearing head. The interior is divided into an inner supply pressure space and an outer switching pressure space that are connected by inlet openings in the cylindrical side walls of the housing and the piston with a cylinder head side supply pressure line and by a non-return valve to a high-pressure space enclosed between the inner end of the piston and the base wall of the housing, or to a cylinder head side switching pressure line and also by a central hole formed in the bearing head to a rocker arm side switching pressure channel.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 13, 2018
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Andreas Biermann, Matthias Ammann
  • Patent number: 9995184
    Abstract: An arrangement for coupling two components that can move relative to each other in a switchable valve train component for an internal combustion engine is provided, with a coupling element (3) that can be moved for coupling the components with a flattened coupling surface (5) for contacting a corresponding locking contour. The locking contour has recesses (7) in which the coupling element (3) can engage so that it can move in contact with the locking contour for coupling with its coupling surface (5) in a position slightly rotated relative to a predetermined coupling position.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: June 12, 2018
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Oliver Popp, Andreas Biermann
  • Publication number: 20170067375
    Abstract: An arrangement for coupling two components that can move relative to each other in a switchable valve train component for an internal combustion engine is provided, with a coupling element (3) that can be moved for coupling the components with a flattened coupling surface (5) for contacting a corresponding locking contour. The locking contour has recesses (7) in which the coupling element (3) can engage so that it can move in contact with the locking contour for coupling with its coupling surface (5) in a position slightly rotated relative to a predetermined coupling position.
    Type: Application
    Filed: September 7, 2016
    Publication date: March 9, 2017
    Applicant: Schaeffler Technologies AG & Co. KG
    Inventors: Oliver Popp, Andreas Biermann
  • Patent number: 8910544
    Abstract: A cam part (1) is provided for a variable sliding cam valve drive of an internal combustion engine, which cam part (1) can be mounted on a basic shaft of the sliding cam valve drive fixedly so as to rotate with it but axially displaceably, and has one or more cam groups (2, 3) and at least one connecting link piece (4) with at least one spiral groove (5) for an actuator pin engagement. At least one weight-reducing groove (7) which does not coincide with the spiral groove (5) is formed on the outer casing (6) of the cam part (1).
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: December 16, 2014
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Arne Manteufel, Andreas Biermann
  • Publication number: 20130247711
    Abstract: A cam part (1) is provided for a variable sliding cam valve drive of an internal combustion engine, which cam part (1) can be mounted on a basic shaft of the sliding cam valve drive fixedly so as to rotate with it but axially displaceably, and has one or more cam groups (2, 3) and at least one connecting link piece (4) with at least one spiral groove (5) for an actuator pin engagement. At least one weight-reducing groove (7) which does not coincide with the spiral groove (5) is formed on the outer casing (6) of the cam part (1).
    Type: Application
    Filed: March 5, 2013
    Publication date: September 26, 2013
    Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventors: Arne Manteufel, Andreas Biermann