Patents Assigned to LuK Lamellen und Kupplungsbau Beteiligungs KG
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Publication number: 20100242467Abstract: A blade for a stator in a torque converter including: a first blade segment connected to first inner and outer circumferential sections; a second blade segment, separately formed from the first blade segment, connected to second inner and outer circumferential sections, and including first and second portions; and a channel disposed between the first and second blade segments. In a circumferential direction, the first and second portions are separated by the channel.Type: ApplicationFiled: March 22, 2010Publication date: September 30, 2010Applicant: LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KGInventors: William Brees, Cem Ersahin
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Patent number: 7802668Abstract: The present invention broadly comprises a stamped side plate for a torque converter stator, including: an annular segment having an inner circumferential surface and a top surface and at least one protrusion extending radially inward beyond the inner circumferential surface. The at least one protrusion comprises a race retaining surface substantially parallel to the top surface. The inner circumferential surface and the race retaining surface are arranged to center and retain an inner race for the stator, respectively. The annular segment also includes at least one annular protrusion extending from the top surface and including a centering surface substantially orthogonal to the top surface. The centering surface is arranged to center a bearing for the stator. The at least one annular protrusion is proximate the inner circumferential surface or an outer edge for the annular segment.Type: GrantFiled: December 19, 2006Date of Patent: September 28, 2010Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KGInventors: Patanjali Peri, Steve Caskey, Christopher Shamie, Steven Olsen, Ramakant Rambhatla
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Patent number: 7798933Abstract: A motor vehicle transmission device which, in order to form a plurality of gears, forms a Lepelletier transmission. At least one torsional damper is provided in the Lepelletier transmission, and also to a motor vehicle drive train, which has a Lepelletier motor vehicle transmission device.Type: GrantFiled: April 20, 2009Date of Patent: September 21, 2010Assignee: Luk Lamellen und Kupplungsbau Beteiligungs KGInventors: Thorsten Krause, Jan Loxtermann
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Patent number: 7798031Abstract: In a method for shifting gears of an automatic transmission, in which a shift finger can be moved by a selective actuator along a selective path into various selective positions, out of which the shift finger can be moved via a shift actuator into different shift paths and the shift finger engages a gear each when it is moved into an end region of a shift path, the selective actuator is activated for verifying the correct function of the selective actuator and its connection to the shift finger prior to each engagement of a new gear within a shift path such that by approaching the edge of the shift gear the respective shift path is detected.Type: GrantFiled: December 13, 2006Date of Patent: September 21, 2010Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KGInventors: Lars Lein, Jan Gunnar Royland, Ole Andre Gjerpe, Christer Svenkerud
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Publication number: 20100234114Abstract: A torsion damper including: a plurality of springs; a first plate with a central axis; and a second plate with a central axis. The plurality of springs displaces the first and second plates so that the central axis for the first plate is radially offset from the central axis for the second plate. In one embodiment, the radial offset between the central axis for the first plate and the central axis for the second plate is fixed. In another embodiment, the first plate comprises a central bore and the second plate comprises an extruded cylinder; and the fixed alignment is maintained by contact between the central bore and the extruded cylinder.Type: ApplicationFiled: March 16, 2010Publication date: September 16, 2010Applicant: LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KGInventors: Brian Zaugg, Patrick Lindemann, Thushan Sivapatham
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Publication number: 20100234152Abstract: A sensing device integrated into a conical disk pair has a sensing piston, which is movable relative to the input shaft over a radially stepped guide surface formed on a shaft and a corresponding opposing stepped surface formed on the sensing piston. The steps form a damping chamber between the guide surface and the opposing surface, whose volume changes when the sensing piston moves relative to the shaft.Type: ApplicationFiled: April 11, 2008Publication date: September 16, 2010Applicant: LuK Lamellen und Kupplungsbau Beteiligungs KGInventors: Andreas Gotz, Eugen Kremer
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Patent number: 7794358Abstract: A method of transitioning a torque converter from torque conversion mode to lock-up mode, and a torque converter. The method includes rotationally fixing stator blades to a non-rotatable stator shaft; partially engaging a torque converter clutch to transmit torque from a housing to a turbine at a first speed ratio between the turbine and the housing; disengaging a pump clutch at a second speed ratio between the turbine and the housing, the pump clutch arranged to transmit torque from the housing to the pump; and fully engaging the torque converter clutch at a third speed ratio between the housing and the turbine. The second ratio can be less than a ratio for a coupling point. The torque converter has torque converter and pump clutches, a non-rotatable stator, and a connection point between a turbine and hub, at least partially radially aligned with an inner ring for the stator.Type: GrantFiled: June 12, 2007Date of Patent: September 14, 2010Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KGInventors: Kevin Parks, George Bailey
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Publication number: 20100227150Abstract: A friction lining, particularly a clutch friction lining for transmitting torque from an engine to a transmission.Type: ApplicationFiled: April 15, 2010Publication date: September 9, 2010Applicant: LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KGInventors: Vera RUEHRUP, Oliver RUNGE, Christian SPANDERN
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Patent number: 7789779Abstract: A belt-driven conical-pulley transmission having a shaft on the input end and a shaft on the power output end. One of the shafts includes at least one axial bore extending in the longitudinal direction of the shaft, and a transverse bore extending from the axial bore to an outlet on the surface of the shaft. A conical disk pair is carried on the shaft and includes an axially fixed disk and an axially movable disk. The axially movable disk includes internal teeth that engage with external teeth on the shaft, and it overlies the transverse bore outlet over its entire axial travel distance. The transverse bore outlet is positioned in the region of the interengaging teeth.Type: GrantFiled: February 17, 2007Date of Patent: September 7, 2010Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KGInventor: Hartmut Faust
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Patent number: 7784393Abstract: A drive unit with a radial interior drive element and a radial exterior drive element as well as a free-wheel arranged between the interior drive element and the exterior drive element. The interior drive element and the exterior drive element are axially displaceable in reference to each other.Type: GrantFiled: December 14, 2006Date of Patent: August 31, 2010Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KGInventor: Steffen Lehmann
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Publication number: 20100209691Abstract: A wear-resistant and high temperature-resistant friction lining, in particular for a transport roller. The lining has a wear-resistant friction component embedded in a matrix and an additional component. The additional component is configured such that it is converted when exceeding a limit temperature while absorbing energy. Due to the endothermic reaction, a cooling effect takes place, which protects the friction lining. In particular, a so-called PBO fiber is used as the friction component.Type: ApplicationFiled: March 26, 2010Publication date: August 19, 2010Applicant: LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KGInventors: Tim-Florian GERBING, Frank STEINHAUER
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Publication number: 20100206405Abstract: A hydraulic valve having a first fluid chamber hydraulically connected to a pressure source, a second fluid chamber hydraulically connected to a pressure operator, and a blocking member for controlling fluid flow between the first and second chambers. The blocking member substantially blocks fluid flow between the first and second chambers when a pressure of fluid in the first chamber is greater than a minimum pressure and less than a pressure of fluid in the second chamber. The blocking member is displaceable to enable fluid flow between the first and second chambers when the pressure of fluid in the first chamber is below the minimum pressure.Type: ApplicationFiled: February 10, 2010Publication date: August 19, 2010Applicant: LuK Lamellen und Kupplungsbau Beteiligungs KGInventor: Trevor MCCONNELL
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Publication number: 20100210366Abstract: A torsional vibration damper with a friction device. The friction device is formed on at least one friction surface on two contra-rotationally and oppositely disposed disc parts that are in frictional contact with one another. In order to propose how to determine the initial stressing effect of the frictional action independently of external support of the disc parts, the frictional surfaces are pressurized against one another by means of at least one spring element.Type: ApplicationFiled: February 11, 2010Publication date: August 19, 2010Applicant: LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KGInventors: Peter Droll, Stefan Jung, Craig Kneidel, Srivatsan Kannan, Nathan Yensho, Thorsten Krause, Markus Werner
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Patent number: 7775335Abstract: The invention relates to a torque transmitting device having a hub arranged in the drive train of a motor vehicle for transmitting torque between a drive unit and a transmission, in particular a turbine wheel hub of a turbine wheel of a torque converter which is coupled to a damper hub with a rotational vibration damper connected in between via a driving plate, in particular of a converter bridge coupling. The invention is operatively arranged such that the rotational vibration damper is equipped with a mechanical stop mechanism that is in effect as soon as a maximum design load on the rotational vibration damper has been exceeded.Type: GrantFiled: December 14, 2006Date of Patent: August 17, 2010Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KGInventors: Stephan Maienschein, Marc Meisner
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Publication number: 20100199792Abstract: A drive train, which has an internal combustion engine with a crankshaft and a parallel shift transmission with two part drive trains, which each have one transmission input shaft. One shaft is formed as a hollow shaft around the other shaft, and a dual clutch, which is received rotatably on the hollow shaft, is connected to the crankshaft and has two friction clutches and two clutch plates each assigned to one clutch and are each connected to one transmission input shaft. Each clutch plate has a torsional vibration damper with a working range which is smaller than a maximum torque of the engine. A build-up of a combined vibration which has an axial vibration of the dual clutch and a rotational vibration of the drive train during an overlap shift operation is prevented by the design of the torsional vibration dampers for a smaller torque.Type: ApplicationFiled: April 23, 2010Publication date: August 12, 2010Applicant: LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KGInventors: Olaf WERNER, Stefan GOPPELT
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Publication number: 20100200347Abstract: A centrifugal pendulum in a torsional vibration damper of a drive train of a motor vehicle with a pendulum flange rotating about a rotation axis and several pendulum masses distributed over the circumference, disposed on the latter in a manner capable of swinging. When the internal combustion engine of the drive train induces massive rotational irregularities resulting from high vibration angles in these arrangements, the pendulum masses can be deflected more strongly relative to the pendulum flange and strike the provided swing motion limits. To prevent hard hits of the pendulum masses on the pendulum flanges, it is proposed to dampen the impact areas by hydraulic means and hence to achieve a soft impact.Type: ApplicationFiled: February 8, 2010Publication date: August 12, 2010Applicant: LUK LAMELLEN UND KUPPLUNGSBAU BETEILIGUNGS KGInventors: Dominique Engelmann, Markus Werner
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Patent number: 7770707Abstract: The present invention broadly comprises a stator for a torque converter with first and second plates. The first plate is connected to a rim for the stator and includes at least one first opening. The second plate is connected to the a hub for the stator and includes at least one first protrusion lockingly engageable with the at least one first opening. The first plate is rotatable about an axis for the hub and the at least one first protrusion and the at least one first opening are lockingly engageable when the first plate is rotated in a first direction with respect to the axis. The at least one first protrusion and the at least one first opening are slidingly engageable when the first plate is rotated in a second direction opposite the first direction.Type: GrantFiled: July 3, 2006Date of Patent: August 10, 2010Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KGInventors: William Brees, Jeffrey Hemphill, Joachim Hoffmann
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Patent number: 7770705Abstract: A drive lug for a piston plate in a torque converter, including a base operatively arranged for attachment to the piston plate and a protruding portion integral to the base and extending axially from the base. The protruding portion is operatively arranged to engage with a damping element in the torque converter. In some aspects, the plate is arranged for attachment with a plurality of drive lugs, while in other aspects, the drive lug is arranged for attachment to the plate with at least one rivet. In some aspects, the lug is made of a hardenable material or by forging. In some aspects, the piston plate further includes an outer circumference and the drive lug is arranged to be secured proximate the outer circumference. In some aspects, the damping element further includes a spring and the drive lug is arranged to engage with the spring. In some aspects, the piston plate further includes an axial width, the drive lug further includes a radial width, and the radial width is greater than the axial width.Type: GrantFiled: June 12, 2007Date of Patent: August 10, 2010Assignee: Luk Lamellen und Kupplungsbau Beteiligungs KGInventor: Craig Kneidel
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Patent number: 7770387Abstract: A method for welding components in a torque converter, including: overlapping first and second edge portions of first and second components in the torque converter, respectively; applying energy to the first portion; and melting, in the absence of filler material, at least a portion of the first portion to weld the first and second components. In some aspects, the converter includes a cover and pump and the first component is one of the cover and pump and the second component is the other of the cover and pump. The present invention also broadly comprises a torque converter, including first and second components with overlapping respective edge portions and an autogenous weld, formed from the first component edge portion and in the absence of a filler material, connecting the first and second components.Type: GrantFiled: August 30, 2007Date of Patent: August 10, 2010Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KGInventor: Paul Biggers
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Patent number: 7770482Abstract: A method for controlling a gear-shifting process from an initial gear to a target gear in a manual transmission with active interlock. According to the method, the active interlock gear-shifting mechanism includes at least one shifting finger which co-operates with a selector fork, and has a layout geometry including a finger and a cam. The method contains the following steps: the selector fork of the initial gear is brought into a reliable shifting position by a method for compensating errors on the gear shifting mechanism, and/or the selector fork of the target gear is brought into a reliable shifting position a method for compensating errors on the gear shifting mechanism, before the target gear is engaged, when ever a temporarily non-critical gear-shift is to be carried out.Type: GrantFiled: September 17, 2007Date of Patent: August 10, 2010Assignee: Luk Lamellen und Kupplungsbau Beteiligungs KGInventors: Ole Jonny Waerp, Viggo L. Norum, Jan Gunnar Royland, Lars Lein, Christer Svenkerud