Patents Assigned to RENK Aktiengesellschaft
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Patent number: 7993174Abstract: 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: GrantFiled: January 19, 2009Date of Patent: August 9, 2011Assignee: Renk AktiengesellschaftInventors: Hartmut Hultsch, Ingo Sommer
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Patent number: 7902774Abstract: 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: GrantFiled: March 21, 2008Date of Patent: March 8, 2011Assignee: RENK AktiengesellschaftInventor: Rainer Marquardt
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Patent number: 7845439Abstract: 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: GrantFiled: June 1, 2006Date of Patent: December 7, 2010Assignee: RENK AktiengesellschaftInventor: Alexander Walter
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Publication number: 20100287962Abstract: 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: ApplicationFiled: November 3, 2008Publication date: November 18, 2010Applicant: RENK AktiengesellschaftInventor: Nikolaus Muller
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Patent number: 7757797Abstract: 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: GrantFiled: September 17, 2004Date of Patent: July 20, 2010Assignee: RENK AktiengesellschaftInventor: Rolf Döbereiner
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Patent number: 7757580Abstract: 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: GrantFiled: November 22, 2005Date of Patent: July 20, 2010Assignee: RENK AktiengesellschaftInventor: Max Witzenberger
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Patent number: 7635036Abstract: 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: GrantFiled: June 10, 2005Date of Patent: December 22, 2009Assignee: RENK AktiengesellschaftInventor: Max Witzenberger
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Patent number: 7621354Abstract: 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: GrantFiled: October 14, 2003Date of Patent: November 24, 2009Assignee: RENK AktiengesellschaftInventors: Max Witzenberger, Rolf Döbereiner
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Patent number: 7616443Abstract: 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: GrantFiled: December 5, 2003Date of Patent: November 10, 2009Assignee: RENK AktiengesellschaftInventor: Alexander Walter
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Publication number: 20090186537Abstract: 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: ApplicationFiled: January 19, 2009Publication date: July 23, 2009Applicant: Renk AktiengesellschaftInventors: Hartmut Hultsch, Ingo Sommer
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Patent number: 7490682Abstract: 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: GrantFiled: June 23, 2005Date of Patent: February 17, 2009Assignee: RENK AktiengesellschaftInventor: Max Witzenberger
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Patent number: 7461710Abstract: 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: GrantFiled: May 17, 2003Date of Patent: December 9, 2008Assignee: Renk AktiengesellschaftInventors: Thomas Egen, Alexander Walter, Max Witzenberger
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Publication number: 20080272718Abstract: 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: ApplicationFiled: March 21, 2008Publication date: November 6, 2008Applicant: RENK AktiengesellschaftInventor: Rainer Marquardt
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Publication number: 20080093139Abstract: 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: ApplicationFiled: June 25, 2007Publication date: April 24, 2008Applicant: Renk AktiengesellschaftInventors: Rolf Dobereiner, Nikolaus Muller
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Publication number: 20070102209Abstract: 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: ApplicationFiled: July 28, 2006Publication date: May 10, 2007Applicant: RENK AktiengesellschaftInventor: Rolf Doebereiner
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Patent number: 7201691Abstract: 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: GrantFiled: October 4, 2003Date of Patent: April 10, 2007Assignee: Renk AktiengesellschaftInventors: Max Witzenberger, Gerhard Rothfischer
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Publication number: 20070068710Abstract: 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: ApplicationFiled: October 14, 2003Publication date: March 29, 2007Applicant: RENK AktiengesellschaftInventors: Max Witzenberger, Rolf Dobereiner
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Publication number: 20070012505Abstract: 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: ApplicationFiled: December 4, 2003Publication date: January 18, 2007Applicant: RENK AktiengesellschaftInventor: Alexander Walter
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Publication number: 20060272864Abstract: 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: ApplicationFiled: June 1, 2006Publication date: December 7, 2006Applicant: RENK AktiengesellschaftInventor: Alexander Walter
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Patent number: 7117730Abstract: 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: GrantFiled: July 10, 2003Date of Patent: October 10, 2006Assignee: RENK AktiengesellschaftInventors: Mathias Karrer, Andreas Mund