Patents by Inventor Lutz Kirbach
Lutz Kirbach 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: 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: 20140109851Abstract: 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: ApplicationFiled: May 16, 2012Publication date: April 24, 2014Applicant: Schaeffler Technologies AG & Co. KGInventors: Lutz Kirbach, Stefan Kieninger, Thomas Binder, Guido Scherzinger, Markus Niederlechner
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Patent number: 8573170Abstract: A rocker arm assembly which has an anti-inversion part that prevents a support pin from inverting and, thus, ensuring proper orientation of the support pin, on which a rocker arm is rotatably mounted, is maintained. The anti-inversion part can be incorporated on the support pin, the inner sleeve or the outer sleeve and/or a combination of the support pin, the inner sleeve and/or the outer sleeve.Type: GrantFiled: August 31, 2011Date of Patent: November 5, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Mark Sullivan, Jesse Myers, Richard Baker, Lutz Kirbach, Michael Turner, James Westbrook, Benjamin McAuley, William Carter
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Patent number: 8474425Abstract: The finger follower employs two independent lost motion arms and a rod which moves longitudinally to lock both arms. The rod is transversely mounted in the follower. In order to avoid premature locking, a clip is employed with tabs that interact with end surfaces of the arms so as to prevent premature movement of the rod from an unlocked position to a locked position.Type: GrantFiled: November 30, 2010Date of Patent: July 2, 2013Assignee: Schaeffler Technologies AG & Co. KGInventor: Lutz Kirbach
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Publication number: 20120060782Abstract: A rocker arm assembly which has an anti-inversion part that prevents a support pin from inverting and, thus, ensuring proper orientation of the support pin, on which a rocker arm is rotatably mounted, is maintained. The anti-inversion part can be incorporated on the support pin, the inner sleeve or the outer sleeve and/or a combination of the support pin, the inner sleeve and/or the outer sleeve.Type: ApplicationFiled: August 31, 2011Publication date: March 15, 2012Inventors: Mark SULLIVAN, Jesse MYERS, Richard BAKER, Lutz KIRBACH, Michael TURNER, James WESTBROOK, Benjamin McAULEY, William CARTER
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Publication number: 20110126787Abstract: The finger follower employs two independent lost motion arms and a rod which moves longitudinally to lock both arms. The rod is transversely mounted in the follower. In order to avoid premature locking, a clip is employed with tabs that interact with end surfaces of the arms so as to prevent premature movement of the rod from an unlocked position to a locked position.Type: ApplicationFiled: November 30, 2010Publication date: June 2, 2011Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KGInventor: Lutz KIRBACH
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Patent number: 7856953Abstract: The dual valve lifter assembly has a dual valve lift with two hydraulic lash adjusters therein and a guide for orienting and preventing rotation of the dual valve lifter. The guide has four ledges and the dual valve lifter has four flats which mate with the four ledges. The flats and the ledges prevent the rotation of the lifter. One pair of flats and one pair of ledges are spaced the same while the other pair of flats and the other pair of ledges are spaced at a different distance than the first pair of flats and ledges. The difference in the spacing of the pairs of ledges and flats allows for correct orientation of the lifter when mating it with the guide.Type: GrantFiled: July 9, 2008Date of Patent: December 28, 2010Assignee: Schaeffler KGInventors: Lutz Kirbach, Florin Bugescu
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Patent number: 7823555Abstract: The low profile valve lifter assembly has flats inside the bore of the outer housing and walls are formed and extended down from the plate of the guide such that the walls align with the flats of the bore to prevent rotation of the lifter with the guide. A groove and protuberance are provided in the flats and on the side wall of the guide in order to properly orient the lifter with the guide. The flats can be connected to form a pocket and the walls of the guide can be connected to form a sleeve that mates with the pocket.Type: GrantFiled: July 31, 2008Date of Patent: November 2, 2010Assignee: Schaeffler KGInventors: Florin Bugescu, James Westbrook, Lutz Kirbach, Richard Best
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Publication number: 20090031969Abstract: The freely rotatable hydraulic pivot element for an internal combustion engine has four oil inlets which are in fluid communication with the lash adjusting element inside the pivot element and in fluid communication with the oil gallery by using four more equally spaced oil inlets in the outer housing of the cylinder head while still in fluid communication therein. The use of four or more oil inlets are in the same radial plane of the outside cylindrical housing of the pivot element.Type: ApplicationFiled: July 29, 2008Publication date: February 5, 2009Applicant: SCHAEFFLER KGInventors: Florin Bugescu, James Westbrook, Lutz Kirbach
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Publication number: 20090031977Abstract: The low profile valve lifter assembly has flats inside the bore of the outer housing and walls are formed and extended down from the plate of the guide such that the walls align with the flats of the bore to prevent rotation of the lifter with the guide. A groove and protuberance are provided in the flats and on the side wall of the guide in order to properly orient the lifter with the guide. The flats can be connected to form a pocket and the walls of the guide can be connected to form a sleeve that mates with the pocket.Type: ApplicationFiled: July 31, 2008Publication date: February 5, 2009Applicant: SCHAEFFLER KGInventors: Florin BUGESCU, James WESTBROOK, Lutz KIRBACH, Richard BEST
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Publication number: 20090013950Abstract: The dual valve lifter assembly has a dual valve lift with two hydraulic lash adjusters therein and a guide for orienting and preventing rotation of the dual valve lifter. The guide has four ledges and the dual valve lifter has four flats which mate with the four ledges. The flats and the ledges prevent the rotation of the lifter. One pair of flats and one pair of ledges are spaced the same while the other pair of flats and the other pair of ledges are spaced at a different distance than the first pair of flats and ledges. The difference in the spacing of the pairs of ledges and flats allows for correct orientation of the lifter when mating it with the guide.Type: ApplicationFiled: July 9, 2008Publication date: January 15, 2009Applicant: SCHAEFFLER KGInventors: Lutz KIRBACH, Florin Bugescu
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Patent number: 7143731Abstract: The invention proposes a cup tappet (1) of a valve train of an internal combustion engine, said cup tappet (1) comprising a hollow cylindrical skirt (3) closed at one end by a bottom (2), said bottom (2) comprising an outer end surface (4) and an inner end surface (6), said outer end surface (4) comprising a contact surface (5) for a cam and said inner end surface (6) comprising a central support (7) for a gas exchange valve, wherein the inner end surface (6) of the bottom (2) comprises a radially extending flat web (8), the support (7) is arranged symmetrically between edges (9, 19) of the web (8), a leg (11, 12) sloping away from the bottom (2) after the manner of a roof extends from each edge (9, 10) up to an inner surface (13) of the skirt (3), and the legs (11, 12) are situated axisymmetrically opposite each other. This cup tappet (1) thus possesses a particularly good rigidity.Type: GrantFiled: May 11, 2005Date of Patent: December 5, 2006Assignee: INA-Schaeffler KGInventors: Lutz Kirbach, Robert Kamm, Arndt Lhlemann
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Publication number: 20050263119Abstract: The invention proposes a cup tappet (1) of a valve train of an internal combustion engine, said cup tappet (1) comprising a hollow cylindrical skirt (3) closed at one end by a bottom (2), said bottom (2) comprising an outer end surface (4) and an inner end surface (6), said outer end surface (4) comprising a contact surface (5) for a cam and said inner end surface (6) comprising a central support (7) for a gas exchange valve, wherein the inner end surface (6) of the bottom (2) comprises a radially extending flat web (8), the support (7) is arranged symmetrically between edges (9, 19) of the web (8), a leg (11, 12) sloping away from the bottom (2) after the manner of a roof extends from each edge (9, 10) up to an inner surface (13) of the skirt (3), and the legs (11, 12) are situated axisymmetrically opposite each other. This cup tappet (1) thus possesses a particularly good rigidity.Type: ApplicationFiled: May 11, 2005Publication date: December 1, 2005Inventors: Lutz Kirbach, Robert Kamm, Arndt Lhlemann