Patents Assigned to ThyssenKrupp Presta TecCenter AG
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Patent number: 8820281Abstract: A camshaft for an internal combustion engine, having a hollow outer shaft and an inner shaft which is concentrically mounted inside the outer shaft to be rotatable about an angle and a multi-part cam element having a first cam section that is mounted on the outer shaft in a rotationally fixed manner and a second cam section that is connected to the inner shaft in a rotationally fixed manner and rotationally mounted on the outer shaft. The two cam sections have different cam contours, the relative movement of the two cam sections in opposite directions allowing the resulting cam contour of the cam element interacting with a cam follower to be changed to adjust the variable valve opening period. The two cam sections have different maximum lifts, the cam top section of the cam section having the smaller maximum lift being substantially formed by an annular sector.Type: GrantFiled: August 24, 2010Date of Patent: September 2, 2014Assignee: Thyssenkrupp Presta Teccenter AGInventors: Uwe Dietel, Uwe Grossgebauer, Jurgen Meusel, Bernd Mann
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Publication number: 20140174248Abstract: A camshaft contains a support tube, on which components including at least one cam are arranged at predetermined locations. The support tube extends at least partially through a hole in the components, and wherein a press fit is produced between the support tube and the components by hydroforming. Accordingly, at least one locally formed material formation is provided between the support tube and the hole. Via the material formation, the component is retained at the location in a desired orientation relative to the support tube in such a way that the support tube having the mounted components can be fed for hydroforming.Type: ApplicationFiled: March 20, 2012Publication date: June 26, 2014Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventors: Daniel Paul, Robert Reichelt
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Publication number: 20140165776Abstract: A camshaft includes a carrier shaft to 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 connected to one another in an axially adjacent configuration and can be mounted axially displaceably as a composite structure in a direct configuration on the carrier shaft by a rolling element guide with rolling elements. A cam pack or package and a method for producing a camshaft are also provided.Type: ApplicationFiled: June 29, 2012Publication date: June 19, 2014Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventors: Thomas Binder, Peter Wiesner
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Publication number: 20140144401Abstract: A camshaft includes a carrier shaft which can be mounted rotatably along a shaft axis and at least one cam pack disposed axially displaceably 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 connected to one another in an axially adjacent configuration and can be mounted axially displaceably as a composite structure in a direct configuration on the carrier shaft. A method for producing a camshaft and a cam pack are also provided.Type: ApplicationFiled: June 29, 2012Publication date: May 29, 2014Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventors: Thomas Binder, Peter Wiesner
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Publication number: 20140144282Abstract: 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: ApplicationFiled: June 29, 2012Publication date: May 29, 2014Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventors: Thomas Binder, Peter Wiesner
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Publication number: 20140137826Abstract: 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: ApplicationFiled: June 29, 2012Publication date: May 22, 2014Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventors: Thomas Binder, Peter Wiesner
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Patent number: 8657907Abstract: A cam shaft has a tubular part extending longitudinally along an axis and a helical body fixed in the tubular part and having a first helical passage extending between an inlet end where a first pressure is present and an outlet end where a second pressure is present. This helical body forms an oil separator between the inlet and outlet ends. A flow-blocking element at the inlet end moves as a function of a pressure differential between the first and second pressures to open and close the first helical passage.Type: GrantFiled: February 23, 2011Date of Patent: February 25, 2014Assignee: Thyssenkrupp Presta Teccenter AGInventors: Juergen Meusel, Ulf Mueller
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Patent number: 8631776Abstract: An assembled camshaft includes an outer hollow camshaft body and an inner camshaft body disposed within the outer hollow camshaft body and mounted so as to rotate relative to it by a predetermined angle. The camshaft also includes at least two separate cam elements. A first cam element is connected with the inner camshaft body so as to rotate with it, and is disposed so as to rotate relative to the outer hollow camshaft body. A second cam element has at least two partial cam elements, in such a manner that a first partial cam element is disposed on the outer hollow camshaft body, so as to rotate with it, and a second partial cam element is connected with the inner camshaft body, so as to rotate with it, and is disposed so that it can be rotated relative to the outer hollow camshaft body.Type: GrantFiled: June 10, 2011Date of Patent: January 21, 2014Assignee: ThyssenKrupp Presta TecCenter AGInventors: Uwe Dietel, Uwe Grossgebauer, Jonathan Heywood, Bernd Mann
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Patent number: 8621951Abstract: A divided toothed wheel having two toothed wheel halves which are tensioned in relation to each other. The first toothed wheel half includes a hollow cylindrical collar with a groove, to which the second toothed wheel half is secured in a form-fitting engagement by a securing element inserted into the groove. The divided tooth wheel takes up a minimum amount of space from the axial direction and has two halves which are permanently connected together. The second toothed wheel half has a radially extending recess and the securing element is designed as an elastically shapeable ring which is arranged in a receiving chamber defined by the groove and the recess and the two toothed wheel halves are permanently joined together.Type: GrantFiled: September 3, 2009Date of Patent: January 7, 2014Assignee: ThyssenKrupp Presta TecCenter AGInventor: Alex Meier
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Patent number: 8590499Abstract: A pre-assembled camshaft module for attachment to a cylinder head of an internal combustion engine includes a cylinder head cover, at least one camshaft, and bearing elements to which the camshaft is rotatably mounted. The bearing elements are formed as bearing brackets, which are connected by attachment members to the cylinder head cover at individual attachment points, in order to produce the pre-assembled camshaft module. The camshaft module is connectable to the cylinder head at the attachment points by the attachment members.Type: GrantFiled: January 28, 2009Date of Patent: November 26, 2013Assignees: ThyssenKrupp Presta TecCenter AG, Polytec Plastics Germany GmbH & Co. KGInventors: Mario Ilgeroth, Andreas Freytag, Alexander Langer, Henrik Wagner, Stefan Retzlaff, Jorge Manuel Miranda Soares, Norbert Schuling
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Publication number: 20130283613Abstract: A method for assembling a module for a motor vehicle engine in which the components, such as e.g. cams, sensor wheels etc., which are to be attached to the support shaft, are positioned, prior to insertion of the support shaft, merely at those axial positions that do not correspond to the axial positions occupied by these components on the fully constructed camshaft.Type: ApplicationFiled: September 9, 2011Publication date: October 31, 2013Applicant: ThyssenKrupp Presta TecCenter AGInventors: Michael Walter, Marian Schulze, Sven Sitte
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Patent number: 8499448Abstract: The invention relates to a method of producing a composite shaft comprising a shaft body (1), at least one first component (2, 9) connected to the shaft body (1) in a rotationally fixed manner, and at least one second component (3, 8) rotatable relative to the shaft body (1), in which method the at least one first component (2, 9) and the at least one second component (3, 8) are pushed onto the shaft body and assembled in the intended sequence.Type: GrantFiled: February 21, 2007Date of Patent: August 6, 2013Assignee: ThyssenKrupp Presta TecCenter AGInventors: Thomas Binder, Ignaz Klaus Teppan
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Patent number: 8496721Abstract: A hollow body includes an integrated oil separator unit, a swirl generator located in a cavity of the hollow body, at least one first supply opening in the camshaft case for introducing gas that is charged with oil into the cavity, and at least one discharge opening for carrying away separated oil and for carrying away gas that has been cleaned of oil. The swirl generator also has elements that are used to variably influence the pressure prevailing at a predetermined point in the cavity.Type: GrantFiled: January 16, 2010Date of Patent: July 30, 2013Assignee: ThyssenKrupp Presta TecCenter AGInventors: Juergen Meusel, Ulf Mueller, Andreas Stapelmann, Daniel Paul
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Patent number: 8495980Abstract: A camshaft arrangement for a motor vehicle engine has a hollow outer shaft and an inner shaft supporting inner shaft cams. The inner shaft cams are non-rotatably attached to the inner shaft by at least one connection element that protrudes with clearance through an aperture in the outer shaft and is attached to the respective inner shaft cam which is rotatably mounted on the outer shaft. When inserted into a receiver in the inner shaft, a portion of the connection element protrudes out of the receiver, and the protruding portion is at least partially inserted into an aperture located at the joint diameter of the inner shaft cam. This aperture is open at least towards an end face of the inner shaft cam. The protruding portion has at least two opposite-lying side surfaces lying with an interference fit against corresponding inner surfaces of the aperture of the inner shaft cam.Type: GrantFiled: May 4, 2009Date of Patent: July 30, 2013Assignee: ThyssenKrupp Presta TecCenter AGInventors: Guido Scherzinger, Bernd Mann, Gunther Martin Lugauer, Mario Wolfinger, Frank Altag, Peter Wiesner, Juergen Meusel, Manfred Muster, Alex Meier
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Patent number: 8409309Abstract: A hollow body, in particular a camshaft, is provided. The hollow body includes an integrated oil separator unit, a swirl generator being located in a cavity of the hollow body and the hollow body having at least one supply opening in the camshaft case for introducing gas that is charged with oil into the cavity and at least one discharge opening for carrying away separated oil and gas that has been cleaned of oil. The hollow body has an oil separator ring inside the cavity, downstream of the swirl generator when viewed in the flow direction.Type: GrantFiled: January 16, 2010Date of Patent: April 2, 2013Assignee: ThyssenKrupp Presta TecCenter AGInventors: Juergen Meusel, Ulf Mueller, Andreas Stapelmann, Daniel Paul
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Patent number: 8402650Abstract: A method for producing a built-up cam shaft and a built-up cam shaft having a shaft are provided. A functional component is produced in a separate manufacturing process and has an internal orifice to receive the shaft. The orifice in the functional component is substantially round to receive the shaft, and an insertion mechanism is provided on the raised areas and/or at the orifice in the functional component, which allow the functional component to be pushed onto the raised areas substantially without shavings being produced. The raised areas partially dig into the orifice and in so doing connect the functional component to the shaft in a non-positive and positive manner substantially by deformation of the material of the functional component in the region of the orifice in the functional component.Type: GrantFiled: May 23, 2006Date of Patent: March 26, 2013Assignee: Thyssenkrupp Presta TecCenter AGInventor: Oskar Mueller
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Publication number: 20120279467Abstract: 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: ApplicationFiled: November 11, 2010Publication date: November 8, 2012Applicant: ThyssenKrupp Presta TecCenter AGInventors: Guido Scherzinger, Manfred Muster
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Publication number: 20120260873Abstract: A camshaft for an internal combustion engine, having a hollow outer shaft and an inner shaft which is concentrically mounted inside the outer shaft to be rotatable about an angle and a multi-part cam element having a first cam section that is mounted on the outer shaft in a rotationally fixed manner and a second cam section that is connected to the inner shaft in a rotationally fixed manner and rotationally mounted on the outer shaft. The two cam sections have different cam contours, the relative movement of the two cam sections in opposite directions allowing the resulting cam contour of the cam element interacting with a cam follower to be changed to adjust the variable valve opening period. The two cam sections have different maximum lifts, the cam top section of the cam section having the smaller maximum lift being substantially formed by an annular sector.Type: ApplicationFiled: August 24, 2010Publication date: October 18, 2012Applicant: THYSSENKRUPP PRESTA TECCENTER AGInventors: Uwe Dietel, Uwe Grossgebauer, Jurgen Meusel, Bernd Mann
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Patent number: 8225756Abstract: Disclosed is an adjusting mechanism for rotating the adjusting shaft of a variable valve control device for combustion engines, in which the crank of a crank-rocker mechanism or slider-crank mechanism is mounted on the camshaft and in which the rocker of the crank-rocker mechanism or the slider of the slider-crank mechanism can entrain the adjusting shaft in the desired direction of rotation by means of switchable freewheels.Type: GrantFiled: February 7, 2006Date of Patent: July 24, 2012Assignee: ThyssenKrupp Presta TecCenter AGInventors: Helmut Schoen, Peter Kuhn, Gordon Koehne, Patric Hoecker
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Patent number: 8210143Abstract: A camshaft arrangement having two shafts disposed coaxially, one inside the other. A connecting element is inserted into a receptacle in the inner shaft, such that a part of the connecting element protrudes out of the receptacle, and that the protruding part is inserted at least partially in a recess, the recess is designed to be open at least toward an end face of the inner shaft cam, and that the protruding part has at least two opposite side surfaces contacting two corresponding inner surfaces of the recess of each inner shaft cam with a force fit. The further connecting element is designed as a radial pin pressed through a hole in the inner shaft cam element into a receptacle of the inner shaft.Type: GrantFiled: November 13, 2009Date of Patent: July 3, 2012Assignee: Thyssenkrupp Presta Teccenter AGInventors: Jürgen Meusel, Bernd Mann, Anton Lupei, Daniel Paul, Uwe Grossgebauer, Mario Lindner