Patents by Inventor Dirk Lehmann

Dirk Lehmann 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: 11817692
    Abstract: An apparatus for damping vibrations in high-voltage devices has a support arrangement for the high-voltage device. The support arrangement includes support elements interconnected by connection elements. Intermediate elements, in particular coated washers, are arranged between the connection elements and the support elements and/or between different support elements. There is also described a method for damping vibrations, in which connection elements spatially fix support elements of the support arrangement of a high-voltage device in a mechanically stable manner. When mechanical vibrations occur on the high-voltage device, the connection elements dampen the mechanical vibration in a defined manner via a predetermined sliding friction with the support elements and via a spatially predetermined play in relation to the support elements.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: November 14, 2023
    Assignee: Siemens Energy Global GmbH & Co. KG
    Inventors: Ulf Heinrich, Dirk Lehmann, Edgar Armando Ramos Cordero, Frank Riedel
  • Publication number: 20210305798
    Abstract: An apparatus for damping vibrations in high-voltage devices has a support arrangement for the high-voltage device. The support arrangement includes support elements interconnected by connection elements. Intermediate elements, in particular coated washers, are arranged between the connection elements and the support elements and/or between different support elements. There is also described a method for damping vibrations, in which connection elements spatially fix support elements of the support arrangement of a high-voltage device in a mechanically stable manner. When mechanical vibrations occur on the high-voltage device, the connection elements dampen the mechanical vibration in a defined manner via a predetermined sliding friction with the support elements and via a spatially predetermined play in relation to the support elements.
    Type: Application
    Filed: July 9, 2019
    Publication date: September 30, 2021
    Inventors: ULF HEINRICH, DIRK LEHMANN, EDGAR ARMANDO RAMOS CORDERO, FRANK RIEDEL
  • Patent number: 10464654
    Abstract: A rudder blade includes a leading edge, a trailing edge, a first side wall and a second side wall lying opposite the first side wall, and a rudder blade hub, which is arranged in a connection space, for connecting a rudder stock. The rudder blade hub has a hub body including an inner bore for receiving the rudder stock, and a hub outer surface running in the circumferential direction, for the hub outer surface to be entirety spaced apart from an inner side of the first side wall and from an inner side of the second side wall.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: November 5, 2019
    Assignee: becker marine systems GmbH
    Inventors: Dirk Lehmann, Herbert Blümel
  • Publication number: 20190161151
    Abstract: In order to provide a rudder blade, which has a low level of weight, is easier and more inexpensive to manufacture, that meets the various strength and stability requirements for various rudder-blade sections, which can be at least partly manufactured in an automated manner and for which the manufacturing of irregular surfaces, in particular, the leading edge, is made easier, a rudder blade is proposed, which has a modular structure, wherein the rudder blade comprises at least two prefabricated rudder-blade segments and is composed of the at least two prefabricated rudder-blade segments.
    Type: Application
    Filed: November 27, 2018
    Publication date: May 30, 2019
    Applicant: Becker Marine Systems GmbH
    Inventors: Dirk Lehmann, Herbert Blümel
  • Publication number: 20180346087
    Abstract: A rudder blade is provided with a rudder blade hub, which, in comparison to rudder blades known from the prior art, has a lower overall weight and can be produced with a reduced outlay on materials and costs, while simultaneously ensuring a sufficiently high strength in order to be able to absorb the large forces and torques acting during operation of the rudder blade and to be able to conduct them away to a rudder stock. The rudder blade includes a leading edge, a trailing edge, a first side wall and a second side wall lying opposite the first side wall, and a rudder blade hub, which is arranged in a connection space, for connecting a rudder stock. The rudder blade hub has a hub body including an inner bore for receiving the rudder stock, and a hub outer surface running in the circumferential direction, for the hub outer surface to be entirety spaced apart from an inner side of the first side wall and from an inner side of the second side wall.
    Type: Application
    Filed: May 29, 2018
    Publication date: December 6, 2018
    Applicant: becker marine systems GmbH
    Inventors: Dirk Lehmann, Herbert Blümel
  • Patent number: 10005530
    Abstract: The invention relates to a device for reducing the driving power requirement of a watercraft, comprising a flow guiding surface from which at least one first fin projects. A first end of said first fin is fixed to the flow guiding surface, and a second end of the first fin is embodied as a free end.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: June 26, 2018
    Assignee: becker marine systems GmbH & Co. KG
    Inventors: Dirk Lehmann, Friedrich Mewis
  • Patent number: 9789943
    Abstract: The invention relates to an arrangement for multi screw vessels, in particular twin screw vessels, with external propeller shafts, as well as to a method for producing such an arrangement. The arrangement according to the invention is in particular suitable for a drive system of an above-mentioned multi screw vessel and to improve the energy efficiency thereof.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: October 17, 2017
    Assignee: Becker marine systems GmbH & Co. KG
    Inventor: Dirk Lehmann
  • Publication number: 20160280346
    Abstract: The invention relates to an arrangement for multi screw vessels, in particular twin screw vessels, with external propeller shafts, as well as to a method for producing such an arrangement. The arrangement according to the invention is in particular suitable for a drive system of an above-mentioned multi screw vessel and to improve the energy efficiency thereof.
    Type: Application
    Filed: March 2, 2016
    Publication date: September 29, 2016
    Applicant: Becker marine systems GmbH & Co. KG
    Inventor: Dirk Lehmann
  • Patent number: 9440723
    Abstract: In order to reduce the switching hysteresis in a dynamic positioning system and/or an autopilot system for watercraft, an arrangement is provided for determining a force acting on a rudder for watercraft. This arrangement includes a processing unit, at least one measuring device for determining values of a physical quantity of a rudder, and means for transmitting the determined values of the physical quantity to the processing unit. The processing unit is configured to determine the force acting on the rudder on the basis of the determined values of the physical quantity.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: September 13, 2016
    Assignee: Becker Marine Systems GmbH & Co. KG
    Inventor: Dirk Lehmann
  • Patent number: 9328613
    Abstract: A drive system of a watercraft includes a propeller rotatable about a propeller axis, and at least one rotor fin which is disposed freely rotatably about the propeller axis. The diameter of a circular path described by the rotation of the at least one rotor fin is less than the diameter of the propeller.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: May 3, 2016
    Assignee: Becker Marine Systems GmbH & Co KG
    Inventor: Dirk Lehmann
  • Patent number: 9306924
    Abstract: A telematics system can provide authenticated access to telematic services. Upon connection of a mobile communication device to an automotive telematic system, and receipt of a request to access a telematic service, the system can determine by a processing unit of the automotive telematic system whether a personalized key for user authentication is required to access the telematic service and, if it is determined that the personalized key is required, request the personalized key from the mobile communication device.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: April 5, 2016
    Assignee: Harman Becker Automotive Systems GmbH
    Inventor: Dirk Lehmann
  • Publication number: 20160090163
    Abstract: The invention relates to a device for reducing the driving power requirement of a watercraft, comprising a flow guiding surface from which at least one first fin projects. A first end of said first fin is fixed to the flow guiding surface, and a second end of the first fin is embodied as a free end.
    Type: Application
    Filed: March 31, 2014
    Publication date: March 31, 2016
    Applicant: BECKER MARINE SYSTEMS GMBH & CO. KG
    Inventors: Dirk Lehmann, Friedrich Mewis
  • Publication number: 20150337759
    Abstract: In order to improve the adaptability of apparatuses for generating energy, which can be used to generate both electrical and thermal energy, to respective conditions of use with regard to the delivery of thermal energy to consumers, an apparatus for generating energy is stated and comprises: a first energy generation unit for generating electrical energy, in particular power, and a second energy generation unit for generating thermal energy, in particular heat and/or cold, and a delivery device for delivering the thermal energy generated by the second energy generation unit to a consumer and a delivery regulation device, the delivery regulation device being designed to enable the delivery device in a first operating state and to block the delivery device in a second operating state, and/or a control device for controlling the second energy generation unit, the control device being designed to activate the second energy generation unit in a first operating state and to block the second energy generation uni
    Type: Application
    Filed: January 13, 2014
    Publication date: November 26, 2015
    Applicant: BECKER MARINE SYSTEMS GMBH & CO. KG
    Inventor: Dirk Lehmann
  • Patent number: 9011088
    Abstract: A propeller nozzle for watercraft includes a stationary propeller and a nozzle ring that shrouds the propeller and can be pivoted by means of a nozzle shaft. The nozzle shaft is provided in the form of a hollow body in order to achieve a constructively simple and simultaneously stable connection between the nozzle shaft and the nozzle ring.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: April 21, 2015
    Assignee: Becker Marine Systems GmbH & Co. KG
    Inventor: Dirk Lehmann
  • Patent number: 8944869
    Abstract: A drive system for a watercraft has a water inlet opening, a water outlet opening, and a fin system. A propellerless pre-nozzle for the drive system is configured rotationally asymmetrically in order to further improve the drive efficiency.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: February 3, 2015
    Assignee: becker marine systems GmbH & Co. KG
    Inventors: Dirk Lehmann, Friedrich Mewis
  • Patent number: 8814496
    Abstract: A device is provided for reducing the drive power requirement of a watercraft includes a fore-nozzle, wherein at least one outer fin projects outwards from the fore-nozzle.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: August 26, 2014
    Assignee: Becker Marine Systems GmbH & Co. KG
    Inventors: Dirk Lehmann, Friedrich Mewis
  • Publication number: 20140136032
    Abstract: In order to reduce the switching hysteresis in a dynamic positioning system and/or an autopilot system for watercraft, an arrangement is provided for determining a force acting on a rudder for watercraft. This arrangement includes a processing unit, at least one measuring device for determining values of a physical quantity of a rudder, and means for transmitting the determined values of the physical quantity to the processing unit. The processing unit is configured to determine the force acting on the rudder on the basis of the determined values of the physical quantity.
    Type: Application
    Filed: December 10, 2013
    Publication date: May 15, 2014
    Applicant: Becker Marine Systems GmbH & Co. KG
    Inventor: Dirk Lehmann
  • Publication number: 20140096217
    Abstract: A telematics system can provide authenticated access to telematic services. Upon connection of a mobile communication device to an automotive telematic system, and receipt of a request to access a telematic service, the system can determine by a processing unit of the automotive telematic system whether a personalized key for user authentication is required to access the telematic service and, if it is determined that the personalized key is required, request the personalized key from the mobile communication device.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 3, 2014
    Applicant: Harman Becker Automotive Systems GmbH
    Inventor: Dirk Lehmann
  • Patent number: 8676413
    Abstract: In order to reduce the switching hysteresis in a dynamic positioning system and/or an autopilot system for watercraft, an arrangement is provided for determining a force acting on a rudder for watercraft. This arrangement includes a processing unit, at least one measuring device for determining values of a physical quantity of a rudder, and means for transmitting the determined values of the physical quantity to the processing unit. The processing unit is configured to determine the force acting on the rudder on the basis of the determined values of the physical quantity.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: March 18, 2014
    Assignee: Becker Marine Systems GmbH & Co. KG
    Inventor: Dirk Lehmann
  • Publication number: 20130059491
    Abstract: A drive system for a watercraft has a water inlet opening, a water outlet opening, and a fin system. A propellerless pre-nozzle for the drive system is configured rotationally asymmetrically in order to further improve the drive efficiency.
    Type: Application
    Filed: February 23, 2012
    Publication date: March 7, 2013
    Applicant: Becker Marine Systems GmbH & Co. KG
    Inventors: Dirk Lehmann, Friedrich Mewis