Patents Assigned to ThyssenKrupp Presta TecCenter AG
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Publication number: 20160138445Abstract: An oil-separating device for crankcase ventilation of an internal combustion engine may include a hollow member that extends axially in a longitudinal axis and through which a gas flow charged with oil can flow. The gas flow may flow against an oil separation ring disposed within or formed in the hollow member. The hollow member may contain a substantially rotationally symmetrical flow guiding member that has a flow projection located in the longitudinal axis and that has a flow contour that radially increases in a downstream direction so that gas can flow around the flow guiding member and so that the gas flow between the flow contour and the inner side of the hollow member can strike the oil separation ring in an accelerated manner.Type: ApplicationFiled: June 16, 2014Publication date: May 19, 2016Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventors: Robert REICHELT, Ulf MÜLLER, Jürgen MEUSEL, Ingo JOKISCH
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Publication number: 20160084368Abstract: The invention relates to a camshaft comprising a support shaft formed as a hollow shaft. An inner shaft is arranged concentrically in the interior of the support shaft, wherein the inner shaft is rotatable relative to the support shaft. There is arranged on the support shaft a first cam segment with a first recess for receiving the support shaft, which cam segment is rotatable with respect to the support shaft and is connected in a rotationally conjoint manner to the inner shaft via a first opening in the support shaft. The first cam segment has at least two cam contours. The connection between the inner shaft and the first cam segment is furthermore configured such that the first cam segment is axially displaceable relative to the inner shaft and to the support shaft.Type: ApplicationFiled: May 6, 2014Publication date: March 24, 2016Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventors: Jürgen MEUSEL, Uwe DIETEL, Bernd MANN, Michael KUNZ, Martin LEHMANN
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Patent number: 9284858Abstract: The invention relates to a method for producing a tubular structural part by means of hydroforming. An assigned end of a supporting tube (1) is inserted into an opening in an end piece (2) and then widened by a pressurized fluid being applied to it and is connected to the end piece (2) with a press fit. The opening (9) has a first portion (10a) with a first inner cross section, which is greater than the outer cross section of the assigned end of the supporting tube (1). According to the invention, the first portion (10a) is adjoined by a second portion (10b), in a step-shaped manner so as to form an edge (11). The inner cross section of the second portion (10b) is smaller than the outer cross section of the assigned end of the supporting tube (1). In the method according to the invention, the supporting tube (1) is first inserted with its corresponding end into the first portion (10a), before the edge (11) cuts into the material of the supporting tube (1) in a further pushing-in movement.Type: GrantFiled: November 17, 2011Date of Patent: March 15, 2016Assignee: THYSSENKRUPP PRESTA TECCENTER AGInventors: Rico Demuth, Jens Gentzen, Juergen Meusel, Alexander Paul, Daniel Paul, Robert Reichelt, Frank Schieck
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Patent number: 9273765Abstract: A camshaft includes a carrier shaft to be mounted rotatably in a shaft axis and at least one cam pack axially displaceable on the carrier shaft. The cam pack includes at least two cams and at least one adjusting member for axial adjustment of the cam pack. The cams and adjusting member are interconnected in an axially adjacent configuration by an integrally molded body. The body is integrally molded on at least one cam and the adjusting member by an original molding process and a composite structure is formed by the integrally molded body. The composite structure can be mounted in a direct configuration on the carrier shaft to be axially displaceable thereon. The cams and the adjusting member include inner toothing engaging in an axially displaceable manner with outer toothing of the carrier shaft. A cam pack and a method for producing a camshaft are also provided.Type: GrantFiled: June 29, 2012Date of Patent: March 1, 2016Assignee: Thyssenkrupp Presta Teccenter AGInventors: Thomas Binder, Peter Wiesner
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Patent number: 9273571Abstract: The invention relates to an adjustable camshaft for the valve gear of an internal combustion engine, comprising an outer shaft, on which at least one first cam is arranged and connected to the outer shaft in a rotationally fixed manner, and an inner shaft extending through the outer shaft, to which inner shaft at least one second cam is connected in a rotationally fixed manner, wherein the second cam connected to the inner shaft in a rotationally fixed manner has a cam hole and is rotatably supported on a seating point on the outer shaft. According to the invention, at least one oil groove is introduced at the seating point in the outer shaft and/or in the inner wall of the cam hole, into which oil groove oil is guided from a gap between the outer shaft and the inner shaft through at least one passage extending through the outer shaft.Type: GrantFiled: March 27, 2013Date of Patent: March 1, 2016Assignee: THYSSENKRUPP PRESTA TECCENTER AGInventors: Uwe Dietel, Bernd Mann, Jürgen Meusel
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Publication number: 20160053639Abstract: The invention relates to a clamping nest for positioning a component on a shaft, and joining it thereto. The component here has a central part with a circular-cylindrical aperture for accommodating the shaft. The clamping nest has a fork-shaped region for accommodating the component, wherein the fork-shaped region comprises a plurality of clamping elements, which secure the angled position of the component within the fork-shaped region. The fork-shaped region also comprises two opposite bearing surfaces, which secure the axial position of the component in a form-fitting manner in both axial directions.Type: ApplicationFiled: March 28, 2014Publication date: February 25, 2016Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventors: Thomas ROGATSCH, Manfred MUSTER
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Patent number: 9261177Abstract: A camshaft includes a carrier shaft which can be mounted rotatably along a shaft axis and at least one cam pack or package axially displaceably disposed on the carrier shaft. The cam pack includes at least two cams and at least one adjusting member for axial adjustment of the cam pack. The cams and the at least one adjusting member are cast integrally with a carrier body in an axially adjacent configuration and are connected to one another by the carrier body. The cams and/or the adjusting member include an inner toothing which engages in an axially displaceable manner with an outer toothing of the carrier shaft. A cam pack and a method for producing a camshaft are also provided.Type: GrantFiled: June 29, 2012Date of Patent: February 16, 2016Assignee: THYSSENKRUPP PRESTA TECCENTER AGInventors: Thomas Binder, Peter Wiesner
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Publication number: 20150343576Abstract: The invention relates to a method for assembling a camshaft (2) from a support shaft (5) and components (17) to be connected to the support shaft (5), the components (17) having through-openings (19) for receiving the support shaft (5). In this method, a support shaft (5) is provided, having first diametrical enlargements (11) in first regions (9), in which the components (17) are to be secured, and second diametrical enlargements (15) in second regions (13), in which the components (17) are to be pre-positioned, the diameter (D2) in the second regions (13) being smaller than the diameter (D1) in the first regions (9). In a further step, the support shaft (5) is cooled and/or the components (17) are heated up, so that the support shaft (5) can be pushed with its first and second diametrical enlargements (11, 13) through the through-openings (19) of the components (17). After that, the support shaft (5) is pushed through the through-openings (19), so that each component (17) is assigned to a second region.Type: ApplicationFiled: December 18, 2013Publication date: December 3, 2015Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventors: Andreas STAPPELMANN, Peter WIESNER, Falk MUHSFELDT
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Patent number: 9200544Abstract: The invention relates to a camshaft, in particular for motor vehicle engines, comprising an outer shaft (1), an inner shaft (2) arranged coaxially in the outer shaft (1), first functional elements (3) rigidly arranged on the outer shaft (1), second functional elements (4a, 4b), which are rotatably arranged on the outer shaft (1) and fastened to the inner shaft (2) in a rotationally fixed manner, and a phase adjuster (5) connected to the outer shaft (1) and the inner shaft (2) for rotating the inner shaft (2) relative to the outer shaft (1), wherein the phase adjuster (5) is fastened to the inner shaft (2) and thereby a torque is applied. According to the invention, one of the functional elements (4a, 4b) connected to the inner shaft (2) in a rotationally fixed manner has tool accommodation surfaces (11) on the cylindrical surface side outside of a functional surface (12a, 12b). The invention further relates to such a functional element.Type: GrantFiled: October 8, 2012Date of Patent: December 1, 2015Assignee: ThyssenKrupp Presta TecCenter AGInventors: Michael Kunz, Bernd Mann, Markus Melzer, Juergen Meusel
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Patent number: 9151186Abstract: An oil-laden gas stream flows axially through a tube shaft formed with at least one radially throughgoing inner oil-discharge port and, axially downstream therefrom, with at lest one radially throughgoing inner gas-discharge port. A bearing supports the tube shaft for rotation about the axis and is formed axially level with the ports with respective radially throughgoing outer oil-discharge and gas-discharge ports. An oil separator inside the tube shaft axially between the oil-discharge ports and the gas-discharge ports is oriented to deflect oil particles from the stream radially outward such that the oil flows out through the inner and outer oil-discharge ports and the gas stream can flow downstream out through the gas-discharge ports.Type: GrantFiled: January 16, 2010Date of Patent: October 6, 2015Assignee: THYSSENKRUPP PRESTA TECCENTER AGInventors: Jürgen Meusel, Ulf Müller, Andreas Stapelmann, Daniel Paul
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Publication number: 20150251238Abstract: Disclosed herein is a method for assembling a module for a motor vehicle engine, which module comprises at least one supporting structure with bearing seats and at least one camshaft which is mounted rotatably in the bearing seats, the camshaft being constructed during the assembly of the module from a support shaft which is configured at least in sections as a hollow shaft and components which are to be connected to the support shaft at predefined joining positions. The method includes providing a supporting structure having bearing seats, positioning components to be affixed to a support shaft in a preliminary position with respect to the bearing seats, pushing the support shaft through the bearing seats and through-openings of the components, enlarging portions of the outer diameter of the support shaft at defined joining positions thereof, and axially moving the components on the support shaft onto the joining positions.Type: ApplicationFiled: October 25, 2013Publication date: September 10, 2015Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventor: Peter Wiesner
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Patent number: 9121354Abstract: Reciprocating-piston internal combustion engine having a crank mechanism, with at least one cylinder head, the intake and exhaust ducts of which are controlled by in each case at least one gas exchange valve which is configured as an intake or exhaust valve, which gas exchange valves can be actuated by cams of at least one camshaft and by transmission elements which are driven by said cams, wherein the cams are configured as sliding cams with at least two cams per sliding cam unit, which sliding cams are arranged via internal splining on an externally splined basic shaft such that they are fixed so as to rotate with it but can be displaced axially, at least one device which is fixed to the internal combustion engine for displacing the sliding cam unit into different axial positions via displacement grooves on the circumference of the sliding cam unit which interact with an actuator pin, and bearings for fixing the camshaft radially and axially on a component of the internal combustion engine, wherein the basiType: GrantFiled: May 16, 2012Date of Patent: September 1, 2015Assignees: Schaeffler Technologies AG & Co. KG, Thyssenkrupp Presta TecCenter AGInventors: Lutz Kirbach, Stefan Kieninger, Thomas Binder, Guido Scherzinger, Markus Niederlechner
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Publication number: 20150152750Abstract: The present invention relates to an adjustable camshaft for the valve gear of an internal combustion engine having an outer shaft, on which at least one first cam is arranged which is connected fixedly to said outer shaft so as to rotate with it, and having an inner shaft which extends through the outer shaft and to which at least one second cam is connected fixedly so as to rotate with it and is mounted rotatably on the outer shaft, and it being possible for oil to be conducted from a gap between the outer shaft and the inner shaft through an oil duct in the outer shaft into the region between the second cam and the outer shaft. According to the invention, the second cam is sealed at least partially against the outer shaft by means of at least one sealing element.Type: ApplicationFiled: July 19, 2013Publication date: June 4, 2015Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventors: Uwe Dietel, Michael Kunz, Bernd Mann
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Publication number: 20150135531Abstract: The invention relates to a method for the material-removing processing of an adjustable camshaft which has a shaft body, wherein at least a first component of the camshaft can move axially and/or in the circumferential direction with respect to the shaft body, wherein a gap which permits the movement is provided between the shaft body and the first component, and wherein in order to protect the first moveable component during the material-removing processing a protection apparatus which has at least one fluid duct is placed on the shaft body and fluid is applied to it. According to the invention, the protection apparatus is arranged laterally with respect to the first moveable component in such a way that at least some of the fluid is directed laterally onto the first component and into an intermediate space between the protection apparatus and the first component, and wherein the first component is exposed in the radial direction.Type: ApplicationFiled: May 29, 2013Publication date: May 21, 2015Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventor: Thomas Binder
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Publication number: 20150114169Abstract: The present disclosure relates to a lightweight camshaft and method for producing the same. The method includes the steps of slidably arranging a plurality of support elements onto a support tube, winding the support tube and support elements with at least one fiber layer, impregnating the at least one fiber layer with a matrix material so as to form a fibre composite, curing the fibre composite, and slidably arranging each of a plurality of functional elements, including at least a plurality of cam elements, onto a corresponding support element, such that the support elements are fixedly seated at least partially inside a passage defined through the functional elements.Type: ApplicationFiled: October 28, 2014Publication date: April 30, 2015Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventor: Alex MEIER
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Publication number: 20150090208Abstract: The invention relates to an adjustable camshaft for the valve gear of an internal combustion engine, comprising an outer shaft, on which at least one first cam is arranged and connected to the outer shaft in a rotationally fixed manner, and an inner shaft extending through the outer shaft, to which inner shaft at least one second cam is connected in a rotationally fixed manner, wherein the second cam connected to the inner shaft in a rotationally fixed manner has a cam hole and is rotatably supported on a seating point on the outer shaft. According to the invention, at least one oil groove is introduced at the seating point in the outer shaft and/or in the inner wall of the cam hole, into which oil groove oil is guided from a gap between the outer shaft and the inner shaft through at least one passage extending through the outer shaft.Type: ApplicationFiled: March 27, 2013Publication date: April 2, 2015Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventors: Uwe Dietel, Bernd Mann, Jürgen Meusel
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Patent number: 8887681Abstract: A cam unit for arranging on a camshaft main part of a camshaft in a rotationally fixed and axially movable manner. The cam unit includes a tubular sleeve main part and at least one cam element that lies on the sleeve main part in a rotationally fixed and non-movable manner. The sleeve main part and the at least one cam element are designed as individual parts that can be separately produced and subsequently assembled.Type: GrantFiled: November 11, 2010Date of Patent: November 18, 2014Assignee: ThyssenKrupp Presta TecCenter AGInventors: Peter Wiesner, Manfred Muster, Thomas Binder, Jonathan Heywood
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Patent number: 8844130Abstract: A camshaft that is assembled or is to be assembled carries at least one cam element that is to be disposed on a main camshaft body to be rotationally fixed and axially movable, and at least one cam element to be disposed on the main camshaft body so as to be rotationally fixed and axially immovable. The main camshaft body has first axial sub-sections having a multi-tooth profile, so that due to a positive connection between shaft and hub the cam element to be disposed in the sub-section so as to be axially movable is seated so as to be rotationally fixed. The main camshaft body also has second axial sub-sections having an extended diameter so that by a non-positive connection between shaft and hub it is ensured that the cam element to be disposed in the sub-section is seated so as to be rotationally fixed and secured against movement.Type: GrantFiled: November 11, 2010Date of Patent: September 30, 2014Assignee: ThyssenKrupp Presta TecCenter AGInventors: Guido Scherzinger, Manfred Muster
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Patent number: 8844482Abstract: A camshaft for actuating the gas exchange valves of an internal combustion engine. The camshaft includes a camshaft tube, a hydraulic camshaft adjuster, a valve for controlling the hydraulic fluid supplied to the camshaft adjuster and an actuation device, arranged in the interior of the camshaft tube, for actuating the valve. The actuation device is secured against displacement in the axial direction. The camshaft is light-weight and functional elements in addition to the actuation device and optionally the valve can be integrated into the interior of the camshaft. It should furthermore be possible to arrange an oil or vacuum pump at the end of the camshaft opposite the camshaft adjuster, the pump being drivable by the camshaft. The actuation device is designed as an electromagnetic, piezoelectric or electrical actuator and is connected to the camshaft tube such that they rotate together.Type: GrantFiled: July 10, 2010Date of Patent: September 30, 2014Assignee: ThyssenKrupp Presta TecCenter AGInventors: Jonathan Heywood, Sebastian Wappler, Mario Lindner
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Patent number: 8833319Abstract: A valve train for an internal combustion engine includes a camshaft with a cam unit for actuating a gas exchange valve. The cam unit has at least two cam paths arranged axially one behind the other and is arranged on the camshaft in a rotation-resistant and axially displaceable manner, and has an actuating profile interacting with a displaceable actuating element between a home position and an actuating position radially to the axis of the camshaft for axially displacing the cam unit on the camshaft. The actuating profile is formed by the lateral front face of the cam unit, and the actuating element has at least one displaceable actuating pin that interacts with a lateral front face of the cam unit such that an axial displacement of the cam unit takes place and in each axial position a different cam path is activated to actuate the gas exchange valve.Type: GrantFiled: March 17, 2011Date of Patent: September 16, 2014Assignee: ThyssenKrupp Presta TecCenter AGInventor: Christian Kraus