Patents Assigned to RENK Aktiengesellschaft
  • Patent number: 7993174
    Abstract: A torque transmission device for a ship for optionally transmitting a drive torque from a main drive or from an auxiliary drive to a propeller shaft of the ship, with a gear unit which can be driven by the main drive and which can be connected to the propeller shaft by a first clutch, and with a second clutch by which the auxiliary drive can be connected to the propeller shaft. The gear unit is received in a gear unit housing, the first clutch and/or second clutch are/is received in a clutch housing that is separate from the gear unit housing, and the first clutch, the second clutch and/or the auxiliary drive are arranged on the side of the gear unit remote of a propeller.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: August 9, 2011
    Assignee: Renk Aktiengesellschaft
    Inventors: Hartmut Hultsch, Ingo Sommer
  • Patent number: 7902774
    Abstract: A power electronic circuit arrangement includes functional blocks for controllable, bidirectional energy exchange between a rotating field machine with at least one phase winding and an external energy store with one positive terminal and one negative terminal. At least one functional block is designed as a functional block that is connection-compatible on the power side and includes at least one internal energy store, such that this functional block has at least one additional switching state, in which an output voltage (UX2) is more positive than the positive terminal (P) of the external energy store, and/or in which an output voltage (UX2) is more negative than the negative terminal (N) of the external energy store.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: March 8, 2011
    Assignee: RENK Aktiengesellschaft
    Inventor: Rainer Marquardt
  • Patent number: 7845439
    Abstract: A device for reversing a steering movement of a steering wheel shaft of a vehicle includes a switching element movable between two switching positions to activate or deactivate the reversal of the steering movement. A mechanical actuating device includes a shaft which is rotatable in different rotational directions, and a slide for actuating the switching element. The slide can be moved along the axial direction of the shaft as a function of the rotational direction of the shaft in order to transfer the switching element between the switching positions.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: December 7, 2010
    Assignee: RENK Aktiengesellschaft
    Inventor: Alexander Walter
  • Publication number: 20100287962
    Abstract: A cooling device for an arrangement with at least one electric component, particularly power electronics (1), for a vehicle, wherein the arrangement can be cooled by a fluid (2) using the method of evaporative cooling, includes a heat engine (4), in particular a steam turbine or a displacement machine for expanding fluid that is evaporated during evaporative cooling.
    Type: Application
    Filed: November 3, 2008
    Publication date: November 18, 2010
    Applicant: RENK Aktiengesellschaft
    Inventor: Nikolaus Muller
  • Patent number: 7757797
    Abstract: A drive for a track-laying vehicle includes a drive shaft connected for driving two chain drive wheels of the track-laying vehicle. At least one differential gear system is arranged for superimposing a rotational speed of a steering drive on at least one of the chain drive wheels. The drive shaft is in drive connection with an electrical machine which can be operated as a generator or as an electric motor and which can be connected to an internal combustion engine by an engaging and disengaging clutch. The electrical machine is operable for charging an electrical energy storage device during operation in generator mode.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: July 20, 2010
    Assignee: RENK Aktiengesellschaft
    Inventor: Rolf Döbereiner
  • Patent number: 7757580
    Abstract: An actuating device for vehicle transmissions, in particular of tracked vehicles or wheeled vehicles having a wheel-based steering system, for the remote shifting and emergency shifting of the vehicle transmission is disclosed. The actuating device has a signal transmitter for the driving direction of the vehicle. A single lever is provided for actuating the remote shifting for the driving direction and the emergency shifting and for producing a driving-direction signal.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: July 20, 2010
    Assignee: RENK Aktiengesellschaft
    Inventor: Max Witzenberger
  • Patent number: 7635036
    Abstract: A device for reversing the steering movement of a steering-wheel shaft of a vehicle, it being possible to switch the reversal process only at a standstill of the vehicle in a center position of the steering device.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: December 22, 2009
    Assignee: RENK Aktiengesellschaft
    Inventor: Max Witzenberger
  • Patent number: 7621354
    Abstract: A drive system for a tracked vehicle having an internal combustion engine with a crankshaft aligned transversely to a direction of travel includes a steering drive; a differential transmission having traction drive elements, steering drive elements, and a pair of drive outputs for a drive axle aligned parallel to the crankshaft; and a steering drive connection connecting the steering drive to the steering drive elements. A further drive element, which may be a change speed gearbox or an electric traction motor, is arranged in line with the internal combustion engine and transmits power to the traction drive elements.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: November 24, 2009
    Assignee: RENK Aktiengesellschaft
    Inventors: Max Witzenberger, Rolf Döbereiner
  • Patent number: 7616443
    Abstract: A cooling device for an electrical power unit of electrically operated vehicles, comprising at least one power section and at least one control section. A first cooling circuit containing a heat exchanger with a low coolant temperature is provided mainly for cooling elements of the control sections, and a further cooling circuit with a higher coolant temperature is provided mainly for cooling elements of the power sections.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: November 10, 2009
    Assignee: RENK Aktiengesellschaft
    Inventor: Alexander Walter
  • Publication number: 20090186537
    Abstract: The invention is directed to a torque transmission device for a ship for optionally transmitting a drive torque from a main drive or from an auxiliary drive to a propeller shaft (1, 2, 3) of the ship, with a gear unit (10, 11) which can be driven by the main drive and which can be connected to the propeller shaft by a first clutch (14), and with a second clutch (15) by which the auxiliary drive can be connected to the propeller shaft. The gear unit is received in a gear unit housing (6), the first clutch and/or second clutch are/is received in a clutch housing (7) that is separate from the gear unit housing, and the first clutch, the second clutch and/or the auxiliary drive are arranged on the side of the gear unit remote of a propeller.
    Type: Application
    Filed: January 19, 2009
    Publication date: July 23, 2009
    Applicant: Renk Aktiengesellschaft
    Inventors: Hartmut Hultsch, Ingo Sommer
  • Patent number: 7490682
    Abstract: A device for reversing the steering movement of a steering-wheel shaft of a vehicle by superimposing a further movement on the steering movement.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: February 17, 2009
    Assignee: RENK Aktiengesellschaft
    Inventor: Max Witzenberger
  • Patent number: 7461710
    Abstract: The invention relates to an electrical steering and drive system for a vehicle with wheel-based steering with at least two electrically driven axles, a mechanical coupling between the drive sides being provided on at least one driven axle in order to transmit power from one drive side to the other, and a purely electrical transmission of drive power being provided on the other driven axles.
    Type: Grant
    Filed: May 17, 2003
    Date of Patent: December 9, 2008
    Assignee: Renk Aktiengesellschaft
    Inventors: Thomas Egen, Alexander Walter, Max Witzenberger
  • Publication number: 20080272718
    Abstract: A power electronic circuit arrangement includes functional blocks for controllable, bidirectional energy exchange between a rotating field machine with at least one phase winding and an external energy store with one positive terminal and one negative terminal. At least one functional block is designed as a functional block that is connection-compatible on the power side and includes at least one internal energy store, such that this functional block has at least one additional switching state, in which an output voltage (UX2) is more positive than the positive terminal (P) of the external energy store, and/or in which an output voltage (UX2) is more negative than the negative terminal (N) of the external energy store.
    Type: Application
    Filed: March 21, 2008
    Publication date: November 6, 2008
    Applicant: RENK Aktiengesellschaft
    Inventor: Rainer Marquardt
  • Publication number: 20080093139
    Abstract: A drive for a vehicle, especially a tracked vehicle or a vehicle with wheel-based steering, with at least one component which consumes electric energy and at least one power electronic component (power electronics) for providing the necessary electric energy, where the power electronics can be cooled with a fluid by the evaporative cooling process.
    Type: Application
    Filed: June 25, 2007
    Publication date: April 24, 2008
    Applicant: Renk Aktiengesellschaft
    Inventors: Rolf Dobereiner, Nikolaus Muller
  • Publication number: 20070102209
    Abstract: A drive for a tracked vehicle with a drive shaft which drives two track drive wheels, and at least one differential gear arrangement which can superimpose a steering rotational speed of a steering drive on at least one track drive wheel is disclosed. The drive shaft has a drive connection to at least one electric machine which can be operated as a generator or electric motor and the output shafts of an internal combustion engine and of the at least one electric machine can be coupled to one another by means of a variable ratio gear unit.
    Type: Application
    Filed: July 28, 2006
    Publication date: May 10, 2007
    Applicant: RENK Aktiengesellschaft
    Inventor: Rolf Doebereiner
  • Patent number: 7201691
    Abstract: A superposition steering system for tracklaying or wheeled vehicles with nonpivoting wheels with a drive system (1) and a zero shaft (10, 10?) to transfer the drive power from one drive side to the other, via at least one steering differential gear (9), wherein the zero shaft (10, 10?) can be driven from a power fraction branched off from the drive system (1) and at least one electric motor (2, 2?).
    Type: Grant
    Filed: October 4, 2003
    Date of Patent: April 10, 2007
    Assignee: Renk Aktiengesellschaft
    Inventors: Max Witzenberger, Gerhard Rothfischer
  • Publication number: 20070068710
    Abstract: A drive system for a tracked vehicle having an internal combustion engine with a crankshaft aligned transversely to a direction of travel includes a steering drive; a differential transmission having traction drive elements, steering drive elements, and a pair of drive outputs for a drive axle aligned parallel to the crankshaft; and a steering drive connection connecting the steering drive to the steering drive elements. A further drive element, which may be a change speed gearbox or an electric traction motor, is arranged in line with the internal combustion engine and transmits power to the traction drive elements.
    Type: Application
    Filed: October 14, 2003
    Publication date: March 29, 2007
    Applicant: RENK Aktiengesellschaft
    Inventors: Max Witzenberger, Rolf Dobereiner
  • Publication number: 20070012505
    Abstract: The invention relates to an electric steering and drive system for a vehicle having a wheel-based steering system, having drive elements for traction tracks or for wheels and having two drive shafts, the first end of which is connected to the drive element of the respective one vehicle side and the second end of which is connected to a differential gear mechanism arrangement, and at least one traction motor is connected to at least one of the two drive shafts, and having an electric steering drive which is drive-connected to the differential gear mechanism arrangement, it being possible for the traction motors and steering drives to be supplied with electric current from at least two energy sources which are independent of one another.
    Type: Application
    Filed: December 4, 2003
    Publication date: January 18, 2007
    Applicant: RENK Aktiengesellschaft
    Inventor: Alexander Walter
  • Publication number: 20060272864
    Abstract: A device for reversing a steering movement of a steering wheel shaft of a vehicle includes a switching element movable between two switching positions to activate or deactivate the reversal of the steering movement. A mechanical actuating device includes a shaft which is rotatable in different rotational directions, and a slide for actuating the switching element. The slide can be moved along the axial direction of the shaft as a function of the rotational direction of the shaft in order to transfer the switching element between the switching positions.
    Type: Application
    Filed: June 1, 2006
    Publication date: December 7, 2006
    Applicant: RENK Aktiengesellschaft
    Inventor: Alexander Walter
  • Patent number: 7117730
    Abstract: A device for simulating slip on vehicle test benches wherein a vehicle wheel which rolls on a movable testing surface of a test device such as a test roller or flat belt and performs the object of changing the frictional force between the wheel and the testing surface without necessarily having to change the coefficient of friction A lifting/lowering device changes the contact force FA of the wheel in a predeterminable way from the tire to an apparatus as the wheel rotates.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: October 10, 2006
    Assignee: RENK Aktiengesellschaft
    Inventors: Mathias Karrer, Andreas Mund