Patents by Inventor Lutz Pahlich

Lutz Pahlich 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: 11378153
    Abstract: A centrifugal pendulum for damping rotational irregularities of a driveshaft of an internal combustion engine, having a carrier flange element connectable indirectly or directly to the driveshaft, and having multiple pendulum elements displaceable in relation to the carrier flange element, and guided via rollers in pendulum paths. Each pendulum element is displaceable in relation to the carrier flange element in the circumferential direction between a first and a second stop position. At least one friction element having defined thermal expansion properties, which are different in particular from the carrier flange element and/or the pendulum elements, is associated with the carrier flange element, and is designed and arranged in such a way that in a defined temperature range of the centrifugal pendulum, upon a movement of at least one pendulum element corresponding to the friction element in the direction of a stop position.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: July 5, 2022
    Assignee: AUDI AG
    Inventors: Herbert Meyer, Thomas Fischer, Andreas Bruns, Peter Klumpp, Jürgen Pfeiffer, Michael Buck, Thomas Forster, Lutz Pahlich
  • Publication number: 20210079974
    Abstract: A centrifugal pendulum for damping rotational irregularities of a driveshaft of an internal combustion engine, having a carrier flange element connectable indirectly or directly to the driveshaft, and having multiple pendulum elements displaceable in relation to the carrier flange element, and guided via rollers in pendulum paths. Each pendulum element is displaceable in relation to the carrier flange element in the circumferential direction between a first and a second stop position. At least one friction element having defined thermal expansion properties, which are different in particular from the carrier flange element and/or the pendulum elements, is associated with the carrier flange element, and is designed and arranged in such a way that in a defined temperature range of the centrifugal pendulum, upon a movement of at least one pendulum element corresponding to the friction element in the direction of a stop position.
    Type: Application
    Filed: November 29, 2018
    Publication date: March 18, 2021
    Applicant: AUDI AG
    Inventors: Herbert MEYER, Thomas FISCHER, Andreas BRUNS, Peter KLUMPP, Jürgen PFEIFFER, Michael BUCK, Thomas FORSTER, Lutz PAHLICH
  • Patent number: 10598228
    Abstract: A torque transmission device includes a shaft which has shaft teeth around its outer circumference, a hub which has hub teeth on an inner circumference, wherein the hub is arranged on the shaft in such a way that the shaft teeth and the hub teeth mesh with one another in order to transmit torque. The torque transmission device furthermore includes at least one spring element which passes entirely through the hub and is supported on the shaft and the hub and exerts a spring force on the hub and the shaft, wherein at least a component of the spring force is directed in such a way that around the entire circumference of the shaft and hub adjacent flanks of the shaft teeth and the hub teeth are pushed together.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: March 24, 2020
    Assignee: AUDI AG
    Inventor: Lutz Pahlich
  • Publication number: 20180172079
    Abstract: A torque transmission device includes a shaft which has shaft teeth around its outer circumference, a hub which has hub teeth on an inner circumference, wherein the hub is arranged on the shaft in such a way that the shaft teeth and the hub teeth mesh with one another in order to transmit torque. The torque transmission device furthermore includes at least one spring element which passes entirely through the hub and is supported on the shaft and the hub and exerts a spring force on the hub and the shaft, wherein at least a component of the spring force is directed in such a way that around the entire circumference of the shaft and hub adjacent flanks of the shaft teeth and the hub teeth are pushed together.
    Type: Application
    Filed: February 15, 2018
    Publication date: June 21, 2018
    Applicant: AUDI AG
    Inventor: LUTZ PAHLICH
  • Patent number: 9926982
    Abstract: A torque transmission device includes a shaft which has shaft teeth around its outer circumference, a hub which has hub teeth on an inner circumference, wherein the hub is arranged on the shaft in such a way that the shaft teeth and the hub teeth mesh with one another in order to transmit torque. The torque transmission device furthermore includes at least one spring element which passes entirely through the hub and is supported on the shaft and the hub and exerts a spring force on the hub and the shaft, wherein at least a component of the spring force is directed in such a way that around the entire circumference of the shaft and hub adjacent flanks of the shaft teeth and the hub teeth are pushed together.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: March 27, 2018
    Assignee: AUDI AG
    Inventor: Lutz Pahlich
  • Publication number: 20150147116
    Abstract: A torque transmission device includes a shaft which has shaft teeth around its outer circumference, a hub which has hub teeth on an inner circumference, wherein the hub is arranged on the shaft in such a way that the shaft teeth and the hub teeth mesh with one another in order to transmit torque. The torque transmission device furthermore includes at least one spring element which passes entirely through the hub and is supported on the shaft and the hub and exerts a spring force on the hub and the shaft, wherein at least a component of the spring force is directed in such a way that around the entire circumference of the shaft and hub adjacent flanks of the shaft teeth and the hub teeth are pushed together.
    Type: Application
    Filed: May 24, 2013
    Publication date: May 28, 2015
    Applicant: Audi AG
    Inventor: Lutz Pahlich