Patents by Inventor Manfred Rahm
Manfred Rahm 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: 10641362Abstract: A transmission arrangement (1) for the controllable distribution of drive torque from an input element (2) to at least one output element (3), comprising a first transmission part region (4), namely a planetary gear mechanism, and an additional drive unit (5), the first transmission part region (4) being drive-connected directly or indirectly to the input element (2) and to the additional drive unit (5), and the first transmission part region (4) being drive-connected directly or indirectly to the output element (3).Type: GrantFiled: December 2, 2016Date of Patent: May 5, 2020Assignee: MAGNA POWERTRAIN GMBH & CO KGInventors: Werner Brendl, Gerhard Hofer, Klaus Nenninger, Peter Pisek, Manfred Rahm, Jan Wiechmann, Hansdieter Wiedner
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Publication number: 20180363738Abstract: A transmission arrangement (1) for the controllable distribution of drive torque from an input element (2) to at least one output element (3), comprising a first transmission part region (4), namely a planetary gear mechanism, and an additional drive unit (5), the first transmission part region (4) being drive-connected directly or indirectly to the input element (2) and to the additional drive unit (5), and the first transmission part region (4) being drive-connected directly or indirectly to the output element (3).Type: ApplicationFiled: December 2, 2016Publication date: December 20, 2018Inventors: Werner BRENDL, Gerhard HOFER, Klaus NENNINGER, Peter PISEK, Manfred RAHM, Jan WIECHMANN, Hansdieter WIEDNER
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Patent number: 7951036Abstract: Disclosed is a differential transmission unit featuring active controlling of the moment distribution. Said differential transmission unit comprises a differential transmission (4) with two output shafts (6, 7), the cage (5) of said differential transmission (4) forming the input member, and one respective controlled frictional clutch (22, 26) that is associated with an output shaft. The primary part (22) of the clutch is drivingly connected to the input member (5) while the secondary part (26) of the clutch is drivingly connected to the associated output shaft (6, 7), at least one of the driving connections being provided with an increased or reduced transmission ratio.Type: GrantFiled: April 28, 2006Date of Patent: May 31, 2011Assignee: MAGNA Powertrain AG & Co KGInventors: Walter Sackl, Manfred Rahm, Jürgen Schranz
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Patent number: 7946401Abstract: A multi-disk clutch having a plurality of interengaging disks movable along a longitudinal clutch axis and a resetting device for the mutual release of adjacent disks along a release distance, with the release distance being bounded by an abutment device. The abutment device includes at least one contact section of a clutch part movable along the longitudinal clutch axis and at least one contact section of an axially fixed clutch part, with the moving clutch part and the axially fixed clutch part having different thermal coefficients of expansion and with the contact sections at both sides cooperating such that the bounding of the release distance varies in dependence on the temperature, with at least one of the contact sections having a sloping surface.Type: GrantFiled: May 8, 2008Date of Patent: May 24, 2011Assignee: MAGNA Powertrain AG & Co KGInventors: Thomas Linortner, Manfred Rahm
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Publication number: 20100285917Abstract: A transmission has a rotatable differential cage (74) and two output shafts (64). In order to distribute a torque between the output shafts (64), at least one balancing wheel (76) is rotatably mounted on the differential cage (74), which balancing wheel (76) is drive-coupled to a respective drive wheel (78) of the output shafts (64). The gearing also has at least one concavely curved coupling wheel (80) which is drive-coupled firstly to at least one of the drive wheels (78) and secondly to at least one hollow shaft (82). The hollow shaft (82) surrounds one of the output shafts (64). The hollow shaft (82) can be braked or driven relative to a part of the gearing.Type: ApplicationFiled: October 29, 2007Publication date: November 11, 2010Applicant: Magna Powertrain AG & Co. KGInventor: Manfred Rahm
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Patent number: 7791000Abstract: A method of connecting a rotationally symmetrical part (11) having precision-machined functional surfaces (16) to a hub part (21) by welding is to deliver a distortion-free end product. To this end, the rotationally symmetrical part (11) and the hub part (12), in their longitudinal sections, are dimensioned in such a way that, when the rotationally symmetrical part (11) is shrunk onto or pressed onto the hub part (12), stresses are produced in the former and said stresses produce deformations which are opposed to the stresses to be expected during the subsequent welding and to deformations caused by said stresses. This is achieved by one of the contact surfaces (14; 15) being conical or by shaping the rotationally symmetrical part (11).Type: GrantFiled: March 22, 2004Date of Patent: September 7, 2010Assignee: MAGNA Powertrain AG & Co. KGInventor: Manfred Rahm
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Publication number: 20080287246Abstract: Disclosed is a differential transmission unit featuring active controlling of the moment distribution. Said differential transmission unit comprises a differential transmission (4) with two output shafts (6, 7), the cage (5) of said differential transmission (4) forming the input member, and one respective controlled frictional clutch (22, 26) that is associated with an output shaft. The primary part (22) of the clutch is drivingly connected to the input member (5) while the secondary part (26) of the clutch is drivingly connected to the associated output shaft (6, 7), at least one of the driving connections being provided with an increased or reduced transmission ratio.Type: ApplicationFiled: April 28, 2006Publication date: November 20, 2008Inventors: Walter Sackl, Manfred Rahm, Jurgen Schranz
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Publication number: 20080277231Abstract: A multi-disk clutch having a plurality of interengaging disks movable along a longitudinal clutch axis and a resetting device for the mutual release of adjacent disks along a release distance, with the release distance being bounded by an abutment device. The abutment device includes at least one contact section of a clutch part movable along the longitudinal clutch axis and at least one contact section of an axially fixed clutch part, with the moving clutch part and the axially fixed clutch part having different thermal coefficients of expansion and with the contact sections at both sides cooperating such that the bounding of the release distance varies in dependence on the temperature, with at least one of the contact sections having a sloping surface.Type: ApplicationFiled: May 8, 2008Publication date: November 13, 2008Applicant: MAGNA Powertrain AG & Co KGInventors: Thomas Linortner, Manfred Rahm
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Publication number: 20070034612Abstract: A method of connecting a rotationally symmetrical part (11) having precision-machined functional surfaces (16) to a hub part (21) by welding is to deliver a distortion-free end product. To this end, the rotationally symmetrical part (11) and the hub part (12), in their longitudinal sections, are dimensioned in such a way that, when the rotationally symmetrical part (11) is shrunk onto or pressed onto the hub part (12), stresses are produced in the former and said stresses produce deformations which are opposed to the stresses to be expected during the subsequent welding and to deformations caused by said stresses. This is achieved by one of the contact surfaces (14; 15) being conical or by shaping the rotationally symmetrical part (11).Type: ApplicationFiled: March 22, 2004Publication date: February 15, 2007Inventor: Manfred Rahm