Patents by Inventor Christoph Ross
Christoph Ross 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: 9719605Abstract: A valve element for a hydraulic control device, in particular valve sleeve (1) or valve housing for a control valve on internal combustion engines or transmissions of motor vehicles, wherein the valve element has a displaceable control piston (2) which is subjected to load on one side by a spring (3) which is supported on a spring support (4) which is fixed to the valve element. The spring support (4) has at least one opening (7) which is connected to a pressure medium line, and the pressure medium line is in the form of a pressure medium inlet line. An axial filter (8) is arranged at the opening (7) of the spring support (4) and/or the opening (7) of the spring support (4) is provided with a check valve (9).Type: GrantFiled: April 4, 2013Date of Patent: August 1, 2017Assignee: Schaeffler Technologies AG & Co. KGInventors: Christoph Ross, Alexander Backer, Josef Groschel
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Patent number: 9611763Abstract: A control valve for a hydraulic device, in particular a central valve of a camshaft adjuster for a reciprocating-piston internal combustion engine, having a holding component (1) in which a valve housing (3), a control sleeve (2) and a control piston (4) are arranged, wherein the control piston (4) is mounted so as to be loaded on one side by a spring and, on the other side, is mounted with limited axial displaceability in the control sleeve (2) by means of a locking ring (6), wherein the locking ring (6) can be fastened in the axial direction in an inner holder (14) on the holding component (1) and can be connected by a fixing device to a component of the control valve, and wherein the fixing device has fastening elements attached to the locking ring (6) and has matching recesses (10) in the valve housing (3) and/or in the control sleeve (2).Type: GrantFiled: September 3, 2013Date of Patent: April 4, 2017Assignee: Schaeffler Technologies AG & Co. KGInventors: Thomas Fritsch, Josef Groschel, Christoph Ross, Barbara Pluta, Alexander Fichtner, Hubert Burkard
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Publication number: 20160245129Abstract: A control valve for a hydraulic device, in particular a central valve of a camshaft adjuster for a reciprocating-piston internal combustion engine, having a holding component (1) in which a valve housing (3), a control sleeve (2) and a control piston (4) are arranged, wherein the control piston (4) is mounted so as to be loaded on one side by a spring and, on the other side, is mounted with limited axial displaceability in the control sleeve (2) by means of a locking ring (6), wherein the locking ring (6) can be fastened in the axial direction in an inner holder (14) on the holding component (1) and can be connected by a fixing device to a component of the control valve, and wherein the fixing device has fastening elements attached to the locking ring (6) and has matching recesses (10) in the valve housing (3) and/or in the control sleeve (2).Type: ApplicationFiled: September 3, 2013Publication date: August 25, 2016Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Thomas Fritsch, Josef Groschel, Christoph Ross, Barbara Pluta, Alexander Fichtner, Hubert Burkard
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Publication number: 20160201724Abstract: The invention relates to a rolling-element bearing device (1) for turbochargers and to a method for installing a rolling-element bearing device. The rolling-element bearing device, while in operation, surrounds a rotor shaft (20) supported by a bearing (10). A first cage (4) and a second cage (5) are used to accommodate rolling elements (7) and each run between an inner raceway (21, 22) and a correspondingly associated outer raceway (11).Type: ApplicationFiled: May 27, 2014Publication date: July 14, 2016Inventors: Christoph Ross, Klaus Daut
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Publication number: 20150184765Abstract: A valve element for a hydraulic control device, in particular valve sleeve (1) or valve housing for a control valve on internal combustion engines or transmissions of motor vehicles, wherein the valve element has a displaceable control piston (2) which is subjected to load on one side by a spring (3) which is supported on a spring support (4) which is fixed to the valve element. The spring support (4) has at least one opening (7) which is connected to a pressure medium line, and the pressure medium line is in the form of a pressure medium inlet line. An axial filter (8) is arranged at the opening (7) of the spring support (4) and/or the opening (7) of the spring support (4) is provided with a check valve (9).Type: ApplicationFiled: April 4, 2013Publication date: July 2, 2015Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KGInventors: Christoph Ross, Alexander Backer, Josef Groschel
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Patent number: 9046009Abstract: A tappet for a valve train or a pump drive particularly a cup tappet (1) having a hollow cylindrical outer body on whose wall region (4) an anti-rotation element (9) is received in a window-type through-opening (15), the anti-rotation element (9) being seated through support surfaces (12, 13) of a head (10) on an outer diameter (14) of the wall region (4) and extending with a shank (11) projecting from the head (10) through said through-opening (15). The anti-rotation element (9) is fixed via a welded joint. In order to fix the anti-rotation element (9) with low manufacturing costs and, at the same time, with only an insignificant impairment of the outer body, the welded joint is made between the shank of the anti-rotation element (9) and an inner body that is received in the outer body and is connected to the outer body. A method of making a tappet of the aforesaid tappet is also provided.Type: GrantFiled: May 28, 2013Date of Patent: June 2, 2015Assignee: Schaeffler Technologies AG & Co. KGInventors: Christoph Ross, Alexander Backer, Josef Groschel
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Publication number: 20150144211Abstract: A control valve (1) of a camshaft adjuster is provided having a multi-part housing (2) that is formed as a screwType: ApplicationFiled: March 8, 2013Publication date: May 28, 2015Inventors: Markus Kinscher, Jens Hoppe, Alexander Backer, Christoph Ross, Alexander Fichtner
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Publication number: 20130319364Abstract: A tappet for a valve train or a pump drive particularly a cup tappet (1) having a hollow cylindrical outer body on whose wall region (4) an anti-rotation element (9) is received in a window-type through-opening (15), the anti-rotation element (9) being seated through support surfaces (12, 13) of a head (10) on an outer diameter (14) of the wall region (4) and extending with a shank (11) projecting from the head (10) through said through-opening (15). The anti-rotation element (9) is fixed via a welded joint. In order to fix the anti-rotation element (9) with low manufacturing costs and, at the same time, with only an insignificant impairment of the outer body, the welded joint is made between the shank of the anti-rotation element (9) and an inner body that is received in the outer body and is connected to the outer body. A method of making a tappet of the aforesaid tappet is also provided.Type: ApplicationFiled: May 28, 2013Publication date: December 5, 2013Applicant: Schaeffler Technologies AG & Co. KGInventors: Christoph Ross, Alexander Backer, Josef Groschel
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Patent number: 8490586Abstract: An electromagnetic actuating unit of a hydraulic control valve which has an armature disposed inside an armature chamber in an axially displaceable manner, and a pole core disposed in a recess. The pole core limits the armature chamber in a direction of movement of the armature. The geometry of the armature serves to adjust the characteristic line of the electromagnetic actuating unit.Type: GrantFiled: November 4, 2008Date of Patent: July 23, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Christoph Ross, Josef Groeschel
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Patent number: 7988126Abstract: The invention relates to an electromagnetic actuation unit (2) of a hydraulic valve (1), with a housing (14), a closing body (4b) and a sealing element (6), the closing body (4b) being plugged into an insertion opening (14a) of the housing (14), the sealing element (6) bearing against the closing body (4b) and the housing (14) and protecting the interior of the actuation unit against the ingress of media.Type: GrantFiled: August 22, 2007Date of Patent: August 2, 2011Assignee: Schaeffler KGInventors: Jens Hoppe, Stefan Konias, Christoph Ross
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Patent number: 7971607Abstract: An electromagnetic hydraulic valve (1) is provided having a magnetic armature (8) which is guided in a longitudinally movable fashion in an armature guide (9) and activates a valve push rod (15) which extends in a valve housing (14). The valve push rod (15) controls the connection between connection openings (28, 29, 30), formed in the valve housing (14), for hydraulic medium in that the valve push rod (15) is operatively connected to one or more sealing bodies (22, 23) which correspond to one or more sealing sleeves (17, 18) supported in the valve housing (14). The hydraulic valve (1) includes an arrangement for precipitating particles of dirt, which element includes an intermediate floor (31), which is arranged between the armature guide (9) and the connection openings (28, 29, 30).Type: GrantFiled: July 8, 2006Date of Patent: July 5, 2011Assignee: Schaeffler Technologies GmbH & Co. KGInventors: Christoph Ross, Herbert Stoeckel
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Patent number: 7886760Abstract: An electromagnetic adjustment unit of a directional control valve is provided. The individual components of the adjustment unit are to be embodied, arranged, and joined such that the assembly expenditure and the costs during the production are reduced to a minimum.Type: GrantFiled: July 27, 2006Date of Patent: February 15, 2011Assignee: Schaeffler Technologies GmbH & Co. KGInventors: Josef Groschel, Christoph Ross
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Publication number: 20100244589Abstract: An electromagnetic actuating unit of a hydraulic control valve which has an armature disposed inside an armature chamber in an axially displaceable manner, and a pole core disposed in a recess. The pole core limits the armature chamber in a direction of movement of the armature. The geometry of the armature serves to adjust the characteristic line of the electromagnetic actuating unit.Type: ApplicationFiled: November 4, 2008Publication date: September 30, 2010Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KGInventors: Christoph Ross, Josef Groeschel
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Publication number: 20100025606Abstract: The invention relates to an electromagnetic actuation unit (2) of a hydraulic valve (1), with a housing (14), a closing body (4b) and a sealing element (6), the closing body (4b) being plugged into an insertion opening (14a) of the housing (14), the sealing element (6) bearing against the closing body (4b) and the housing (14) and protecting the interior of the actuation unit against the ingress of mediaType: ApplicationFiled: August 22, 2007Publication date: February 4, 2010Applicant: SCHAEFFLER KGInventors: Jens Hoppe, Stefan Konias, Christoph Ross
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Publication number: 20080196777Abstract: An electromagnetic hydraulic valve (1) is provided having a magnetic armature (8) which is guided in a longitudinally movable fashion in an armature guide (9) and activates a valve push rod (15) which extends in a valve housing (14). The valve push rod (15) controls the connection between connection openings (28, 29, 30), formed in the valve housing (14), for hydraulic medium in that the valve push rod (15) is operatively connected to one or more sealing bodies (22, 23) which correspond to one or more sealing sleeves (17, 18) supported in the valve housing (14). The hydraulic valve (1) includes an arrangement for precipitating particles of dirt, which element includes an intermediate floor (31), which is arranged between the armature guide (9) and the connection openings (28, 29, 30).Type: ApplicationFiled: July 8, 2005Publication date: August 21, 2008Applicant: SCHAEFFLER KGInventors: Christoph Ross, Herbert Stoeckel
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Publication number: 20070017587Abstract: An electromagnetic adjustment unit of a directional control valve is provided. The individual components of the adjustment unit are to be embodied, arranged, and joined such that the assembly expenditure and the costs during the production are reduced to a minimum.Type: ApplicationFiled: July 27, 2006Publication date: January 25, 2007Applicant: SCHAEFFLER KGInventors: Josef Groschel, Christoph Ross