Patents by Inventor Friedrich Gerhardt
Friedrich Gerhardt 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).
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Patent number: 9829064Abstract: A drive train including an internal combustion engine with a crankshaft, and having a spur gear arrangement with at least one transmission input shaft that is coupled to the crankshaft by a friction clutch. A clutch plate within a housing of the friction clutch is connected in a rotationally locked manner to the at least one transmission input shaft and includes a centrifugal force pendulum. To accommodate the centrifugal force pendulum in the drive train in a space saving manner, the centrifugal force pendulum is situated on the at least one transmission input shaft at an axial distance from the clutch plate.Type: GrantFiled: August 6, 2012Date of Patent: November 28, 2017Assignee: Schaeffler Technologies AG & Co. KGInventors: Alain Rusch, Steffen Lehmann, Friedrich Gerhardt
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Publication number: 20140329641Abstract: A drive train including an internal combustion engine with a crankshaft, and having a spur gear arrangement with at least one transmission input shaft that is coupled to the crankshaft by a friction clutch. A clutch plate within a housing of the friction clutch is connected in a rotationally locked manner to the at least one transmission input shaft and includes a centrifugal force pendulum. To accommodate the centrifugal force pendulum in the drive train in a space saving manner, the centrifugal force pendulum is situated on the at least one transmission input shaft at an axial distance from the clutch plate.Type: ApplicationFiled: August 6, 2012Publication date: November 6, 2014Applicant: Schaeffler Technologies GmbH & Co. KGInventors: Alain Rusch, Steffen Lehmann, Friedrich Gerhardt
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Patent number: 6601682Abstract: A power train between the output shaft of the engine and the input shaft of the transmission in the power train of a motor vehicle has a composite flywheel receiving torque from the output shaft and transmits torque to the input shaft by way of a clutch disc in response to engagement of a friction clutch which is arranged to transmit torque between the clutch disc and the flywheel. The clutch disc has an input section adapted to receive torque from the flywheel and an output section adjacent the mass of a dynamic damper. Transmission of torque between the mass and the clutch disc takes place by way of the coil springs of an oscillation damper and a slip clutch in series with the oscillation damper.Type: GrantFiled: April 18, 2001Date of Patent: August 5, 2003Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KGInventors: Stefan Lehmann, Karl-Ludwig Kimmig, Roland Seebacher, Friedrich Gerhardt, Joachim Hoffman, Hermann Langeneckert
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Patent number: 6382164Abstract: The crankshaft of a piston engine is assembled with a vibration damper into a discrete module prior to mounting of such module in axial and/or radial bearings of the housing of the engine. The damper has an input element which rotates with the camshaft and a mass which is angularly movable relative to the input element against the resistance of coil springs. The input element can be provided with a sleeve which surrounds a snout at one axial end of the crankshaft. Alternatively, the damper can be installed in or on or can constitute a cheek of the crankshaft. The coil springs can operate in parallel with a friction generating device which also opposes rotation of the input element and the mass of the damper relative to each other.Type: GrantFiled: September 12, 2001Date of Patent: May 7, 2002Assignee: LuK Lamellen und Kupplungsbau GmbHInventors: Wolfgang Haas, Ruben Schmitt, Friedrich Gerhardt, Wolfgang Reik, Steffen Lehmann, Willi Ruder
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Publication number: 20020002960Abstract: The crankshaft of a piston engine is assembled with a vibration damper into a discrete module prior to mounting of such module in axial and/or radial bearings of the housing of the engine. The damper has an input element which rotates with the camshaft and a mass which is angularly movable relative to the input element against the resistance of coil springs. The input element can be provided with a sleeve which surrounds a snout at one axial end of the crankshaft. Alternatively, the damper can be installed in or on or can constitute a cheek of the crankshaft. The coil springs can operate in parallel with a friction generating device which also opposes rotation of the input element and the mass of the damper relative to each other.Type: ApplicationFiled: September 12, 2001Publication date: January 10, 2002Applicant: LuK Lamellen und Kupplungsbau GmbHInventors: Wolfgang Haas, Ruben Schmitt, Friedrich Gerhardt, Wolfgang Reik, Steffen Lehmann, Willi Ruder
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Patent number: 6308678Abstract: The crankshaft of a piston engine is assembled with a vibration damper into a discrete module prior to mounting of such module in axial and/or radial bearings of the housing of the engine. The damper has an input element which rotates with the crankshaft and a mass which is angularly movable relative to the input element against the resistance of coil springs. The input element can be provided with a sleeve which surrounds a snout at one axial end of the crankshaft. Alternatively, the damper can be installed in or on or can constitute a cheek of the crankshaft. The coil springs can operate in parallel with a friction generating device which also opposes rotation of the input element and the mass of the damper relative to each other.Type: GrantFiled: September 13, 2000Date of Patent: October 30, 2001Assignee: LuK Lamellen und Kupplungsbau GmbHInventors: Wolfgang Haas, Ruben Schmitt, Friedrich Gerhardt, Wolfgang Reik, Steffen Lehmann, Willi Ruder
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Publication number: 20010032769Abstract: A power train between the output shaft of the engine and the input shaft of the transmission in the power train of a motor vehicle has a composite flywheel receiving torque from the output shaft and transmits torque to the input shaft by way of a clutch disc in response to engagement of a friction clutch which is arranged to transmit torque between the clutch disc and the flywheel. The clutch disc has an input section adapted to receive torque from the flywheel and an output section adjacent the mass of a dynamic damper. Transmission of torque between the mass and the clutch disc takes place by way of the coil springs of an oscillation damper and a slip clutch in series with the oscillation damper.Type: ApplicationFiled: April 18, 2001Publication date: October 25, 2001Applicant: LuK Lamellen und Kupplungsbau GmbhInventors: Steffen Lehmann, Karl-Ludwig Kimmig, Roland Seebacher, Friedrich Gerhardt, Joachim Hoffman, Hermann Langeneckert
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Patent number: 6270436Abstract: A continuously variable drive mechanism has a variator with two conical disks, at least one of the conical disks being axially movable, a belt running at a variable running radius axially between the conical disks, and a disk-tightening device pushing the axially movable conical disk against the other of the two conical disks, thereby applying axial pressure to the flexible torque-transmitting device. The disk-tightening device works with guiding means converting a rotational displacement into an axial displacement.Type: GrantFiled: September 29, 1999Date of Patent: August 7, 2001Assignee: LuK Lamellen und Kupplungsbau GmbHInventors: Wolfgang Reik, Ruben Schmitt, Wolfgang Haas, Friedrich Gerhardt
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Patent number: 6142115Abstract: The crankshaft of a piston engine is assembled with a vibration damper into a discrete module prior to mounting of such module in axial and/or radial bearings of the housing of the engine. The damper has an input element which rotates with the camshaft and a mass which is angularly movable relative to the input element against the resistance of coil springs. The input element can be provided with a sleeve which surrounds a snout at one axial end of the crankshaft. Alternatively, the damper can be installed in or on or can constitute a cheek of the crankshaft. The coil springs can operate in parallel with a friction generating device which also opposes rotation of the input element and the mass of the damper relative to each other.Type: GrantFiled: September 2, 1998Date of Patent: November 7, 2000Assignee: Luk Lamellen und Kupplungsbau, GmbHInventors: Wolfgang Haas, Ruben Schmitt, Friedrich Gerhardt, Wolfgang Reik, Steffen Lehmann, Willi Ruder
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Patent number: 6048284Abstract: A pulley which can be driven by the output element of the engine in a motor vehicle to transmit torque to one or more endless belts or chains has a rotary input member, a rotary output member and a damper which yieldably opposes rotation of the input and output members relative to each other about a common axis and is at least partially confined in an annular chamber defined by at least one of the input and output members. The chamber can further receive a friction bearing which operates between the input and output members, as well as a vibration absorbing device. Such device can have a mass which is adjacent a flange of one of the input and output members and one or more energy storing elements acting in the circumferential direction of the pulley.Type: GrantFiled: December 23, 1996Date of Patent: April 11, 2000Assignee: LuK Lamellen und Kupplungsbau GmbHInventors: Friedrich Gerhardt, Peter Klein, Heinz Molt, Joachim Hoffmann, Herbert Kiefer-Gander, Alexander Ellert, Helmut Kohler, Wolfgang Haas