Patents by Inventor Robert Heinemann
Robert Heinemann 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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Publication number: 20180119780Abstract: A chain tensioner includes a housing that forms a cylindrical receptacle. A piston is surrounded at least in part by the receptacle. The inner surface of the receptacle axially guides the piston when the piston travels into and out of the housing. The chain tensioner further includes a locking unit which limits the inward travel of the piston. The locking unit includes a stop facing the housing, and a mating stop facing the piston. A locking element establishes a force-transmitting connection between the stop and the mating stop. At a location of the stop facing the housing, the housing axially forms a locking section that is located between the locking element and the piston. The locking section includes at least one recess, allowing the locking element to establish the force-transmitting connection between the stop and the mating stop.Type: ApplicationFiled: May 4, 2016Publication date: May 3, 2018Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Robert HEINEMANN, Patrick WEGE
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Patent number: 9476327Abstract: A camshaft adjusting device (19) having a camshaft adjuster (4), including a stator (36), a rotor (38) which can be rotated relative to the stator (36) about a rotational axis (74), and a hub (52) which is arranged on the rotor (38) or on the stator (36) and has a receiving cup (62), and having a camshaft (12) which is received in the receiving cup (62). It is provided here that the camshaft (12) is fixed radially in the receiving cup (62) via at least three spacer elements (64). A camshaft adjusting device (19) of this type can be produced simply and inexpensively.Type: GrantFiled: March 22, 2013Date of Patent: October 25, 2016Assignee: Schaeffler Technologies AG & Co. KGInventors: Juergen Weber, Robert Heinemann
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Patent number: 9103240Abstract: A configuration of a camshaft phaser (1), which has a drive element (2), and at least two output elements (3, 4), the drive element (2) and the output elements (3, 4) having a plurality of radially oriented vanes (6) which overlap the lateral surfaces (9) of the adjacent element in the axial direction (7).Type: GrantFiled: February 23, 2012Date of Patent: August 11, 2015Assignee: Schaeffler Technologies AG & Co. KGInventor: Robert Heinemann
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Patent number: 9080654Abstract: An actuator device of a sliding cam system having at least one sliding cam and at least one engaging pin (2) projecting out from a housing (1), the housing (1) being fastenable to a component of a cylinder head or to the cylinder head of an internal combustion engine, and the engaging pin (2) being able to be contacted by at least one groove of the sliding cam system that has at least one lead-out slope, and the engaging pin (2) being spring-loaded toward the sliding cam, and, in the retracted position thereof facing the groove, the engaging pin(s) (2) or at least one component connected thereto can be secured in place by an arrestable latch device.Type: GrantFiled: August 22, 2011Date of Patent: July 14, 2015Assignee: Schaeffler Technologies AG & Co. KGInventor: Robert Heinemann
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Patent number: 8991344Abstract: A directional valve (30) for controlling a hydraulic oil flow from a pressure port (34) via working chambers of a camshaft adjuster (4) to a tank port (58). The directional valve (30) includes an accumulator port (36) for conducting at least a part of the hydraulic oil flowing out of a working chamber into a volume accumulator (54) before said hydraulic oil flows out into the tank port (58), and the accumulator port (36) is connected via a passage (60) to the pressure port (34).Type: GrantFiled: January 18, 2013Date of Patent: March 31, 2015Assignee: Schaeffler Technologies AG & Co. KGInventors: Jens Schafer, Martin Steigerwald, Michael Busse, Jurgen Plate, Steffen Racklebe, Andreas Wedel, Olaf Boese, Robert Heinemann
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Publication number: 20150083065Abstract: A camshaft adjusting device (19) having a camshaft adjuster (4), including a stator (36), a rotor (38) which can be rotated relative to the stator (36) about a rotational axis (74), and a hub (52) which is arranged on the rotor (38) or on the stator (36) and has a receiving cup (62), and having a camshaft (12) which is received in the receiving cup (62). It is provided here that the camshaft (12) is fixed radially in the receiving cup (62) via at least three spacer elements (64). A camshaft adjusting device (19) of this type can be produced simply and inexpensively.Type: ApplicationFiled: March 22, 2013Publication date: March 26, 2015Inventors: Juergen Weber, Robert Heinemann
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Publication number: 20140328505Abstract: Embodiments are disclosed that relate to adapting sound fields in an environment. For example, one disclosed embodiment includes receiving information regarding a user in the environment, and outputting one or more audio signals to one or more speakers based on the information. The method further includes detecting a change in the information that indicates a change in the position of one or more of the user and an object related to the user in the environment, and modifying the one or more audio signals output to the one or more speakers based on the change in the information.Type: ApplicationFiled: May 2, 2013Publication date: November 6, 2014Applicant: Microsoft CorporationInventors: Chad Robert Heinemann, Andrew William Lovitt
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Patent number: 8794205Abstract: The invention concerns a switchable lever (1) for a valve train of an internal combustion engine, said lever (1) comprising on one end (5), a bearing (6) for enabling a pivotal support of said lever (1) and, on another end (7), a support (9) for a gas exchange valve, a crossbar (2) of the lever (1) comprising a recess (10) comprising two cam rollers (11, 12) which are seated on an axle (15) mounted in bores (13, 14) of side walls (3, 4) of the lever (1) and displaceable in axial direction, a hollow axle (16) arranged on said axle (15) extending inwards out of the bore (13) of the first side wall (3), a first one of the cam rollers (11) being guided, axially fixed on said hollow axle (16) in front of an inner side (17) of the first side wall (3), said first cam roller (11) serving for a permanent contact of a first low lift cam (18) of a cam assembly (19), a second one of the cam rollers (12) being axially fixed on said axle (15) and being displaceable by said axle (15) into two positions, a first one of saidType: GrantFiled: March 3, 2011Date of Patent: August 5, 2014Assignee: Schaeffler Technologies GmbH & Co. KGInventors: Norbert Nitz, Robert Heinemann
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Patent number: 8677958Abstract: A switchable lever for a valve drive of an internal combustion engine, which has an elongated housing with two side walls. A crossbar for a gas-exchange valve system and another end of the housing has a hearing for pivotable support of the crossbar. An axle is held nondisplaceably in the side walls. An axially fixed low-lift cam roller is seated centrally on the axle and is flanked on both sides by a high-lift cam roller. The high-lift cam rollers are displaceable: (a) into a first position, away from each other, to toward the side walls such that contact of one high-lift cam per high-lift cam roller is possible, and (b) into a second position, toward each other, such that they are located outside an engagement region of the high-lift cams, and as a result of which contact of a low-lift or zero-lift cam with the low-lift cam roller is possible.Type: GrantFiled: May 3, 2011Date of Patent: March 25, 2014Assignee: Schaeffler Technologies AG & Co. KGInventors: Matthias Becker, Robert Heinemann
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Publication number: 20140007831Abstract: A configuration of a camshaft phaser (1), which has a drive element (2), and at least two output elements (3, 4), the drive element (2) and the output elements (3, 4) having a plurality of radially oriented vanes (6) which overlap the lateral surfaces (9) of the adjacent element in the axial direction (7).Type: ApplicationFiled: February 23, 2012Publication date: January 9, 2014Applicant: Schaeffler Technologies AG & Co. KGInventor: Robert Heinemann
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Publication number: 20130199330Abstract: An actuator device of a sliding cam system having at least one sliding cam and at least one engaging pin (2) projecting out from a housing (1), the housing (1) being fastenable to a component of a cylinder head or to the cylinder head of an internal combustion engine, and the engaging pin (2) being able to be contacted by at least one groove of the sliding cam system that has at least one lead-out slope, and the engaging pin (2) being spring-loaded toward the sliding cam, and, in the retracted position thereof facing the groove, the engaging pin(s) (2) or at least one component connected thereto can be secured in place by an arrestable latch device.Type: ApplicationFiled: August 22, 2011Publication date: August 8, 2013Applicant: Schaeffler Technologies AG & Co. KGInventor: Robert Heinemann
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Patent number: 8375910Abstract: An anti-rotation device (1) for a coupling piston (2) in a switchable component (3) of a valve train of an internal combustion engine is provided, with the component (3) including two parts (4, 5) that are movable relative to each other.Type: GrantFiled: August 6, 2010Date of Patent: February 19, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Matthias Becker, Robert Heinemann
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Publication number: 20120325168Abstract: The invention concerns a switchable lever (1) for a valve train of an internal combustion engine, said lever (1) comprising on one end (5), a bearing (6) for enabling a pivotal support of said lever (1) and, on another end (7), a support (9) for a gas exchange valve, a crossbar (2) of the lever (1) comprising a recess (10) comprising two cam rollers (11, 12) which are seated on an axle (15) mounted in bores (13, 14) of side walls (3, 4) of the lever (1) and displaceable in axial direction, a hollow axle (16) arranged on said axle (15) extending inwards out of the bore (13) of the first side wall (3), a first one of the cam rollers (11) being guided, axially fixed on said hollow axle (16) in front of an inner side (17) of the first side wall (3), said first cam roller (11) serving for a permanent contact of a first low lift cam (18) of a cam assembly (19), a second one of the cam rollers (12) being axially fixed on said axle (15) and being displaceable by said axle (15) into two positions, a first one of saidType: ApplicationFiled: March 3, 2011Publication date: December 27, 2012Applicant: Schaeffler Technologies AG & Co. KGInventors: Norbert Nitz, Robert Heinemann
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Patent number: 8312851Abstract: A switchable finger lever (1) for a valve train of an internal combustion engine is provided. The finger lever includes an inner lever (2) with a U-shaped cross-section having, on one end (3), outer arms (4) which are made separately from each other and are pivotable relative to the inner lever (2). The outer arms extend, while flanking outer walls (6) of the inner lever (2), in a direction of the other end (5), and have on upper sides (7), running surfaces (7a) for high-lift cams. A support (10) having integrally connected lateral guide tabs (11) for at least one gas exchange valve extend on an underside (8) of a crossbar (9) of the inner lever (2) in a vicinity of the one end (3). An insert (12) having a contact surface (13) for a head of a support element is installed on the another end (5) between side walls (14) of the inner lever (2), and has a coupling slide (15) for an optional connection of the outer arms (4) to the inner lever (2).Type: GrantFiled: July 9, 2010Date of Patent: November 20, 2012Assignee: Schaeffler Technologies AG & Co. KGInventor: Robert Heinemann
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Patent number: 8235017Abstract: A switchable component (1) of a valve train of an internal combustion engine is provided, with a housing (2) in whose borehole (3) an inner element (4) is held so that it can move telescopically. At least one coupling piston (7) guided by an anti-rotation locking device (6) is located in a radial borehole (5) of the inner element (4) in a decoupled case, with a section (10) that is flattened in some areas being provided on the coupling piston on one axial side (9) starting from its outer end (8). The borehole (3) of the housing (2) has a window (11) with a complementary engagement surface (12) against which, in a coupled case, the coupling piston (7) can be displaced with its flattened section (10) when passing through the cam base circle. An edge (13) between the outer end (8) and the flattened section (10) of the coupling piston (7) is provided with a bevel (14) that is a surface section of an ellipsoid whose longitudinal axis runs parallel to the flattened section (10).Type: GrantFiled: March 12, 2010Date of Patent: August 7, 2012Assignee: Schaeffler Technologies AG & Co. KGInventors: Sandra Schäfer, Robert Heinemann
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Publication number: 20110271924Abstract: A switchable component, which has a housing with a bore and an inner element held in the bore with a head that projects above a rim of the housing. The housing and the inner element are loaded away from each other by a lost-motion spring. At least one coupling piston sits in an opening of the inner element. Sections of the coupling piston are moveable over a ring surface to a carrier surface of the housing. A retaining ring packet has a circular arc-shaped outer surface that lies in a ring groove of the bore of the housing. A ring face of the inner element sits against the underside of the retaining ring packet in the extended state defining relative position. The retaining ring packet, starting from at least one of the surfaces of the retaining ring packet has recesses for forming tab-like sections lying circumferentially between the recesses.Type: ApplicationFiled: October 6, 2009Publication date: November 10, 2011Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KGInventors: Robert Heinemann, Joachim Krause, Ulrich Elgas, Rainer Pfeufer, Jeffrey Shewell
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Publication number: 20110265750Abstract: A switchable lever for a valve drive of an internal combustion engine which has two side walls with ends connected by a crossbar. There is a gas-exchange valve system in the crossbar at one end and a bearing for the pivotable support of the crossbar at the other end. An axle is held nondisplaceably in the side walls, between the ends, with two cam rollers running on the axle. The cam rollers are displaceable axially on the axle toward each other into a first position such that the cam rollers run up to each other on a longitudinal center plane of the lever and away from each other into a second position. One of the positions serves for a high-lift cam contact and the other position serves for a low-lift or zero-lift cam contact.Type: ApplicationFiled: May 3, 2011Publication date: November 3, 2011Inventors: Matthias BECKER, Robert HEINEMANN
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Publication number: 20110265751Abstract: A switchable lever for a valve drive of an internal combustion engine, which has an elongated housing with two side walls. A crossbar for a gas-exchange valve system and another end of the housing has a hearing for pivotable support of the crossbar. An axle is held nondisplaceably in the side walls. An axially fixed low-lift cam roller is seated centrally on the axle and is flanked on both sides by a high-lift cam roller. The high-lift cam rollers are displaceable: (a) into a first position, away from each other, to toward the side walls such that contact of one high-lift cam per high-lift cam roller is possible, and (b) into a second position, toward each other, such that they are located outside an engagement region of the high-lift cams, and as a result of which contact of a low-lift or zero-lift cam with the low-lift cam roller is possible.Type: ApplicationFiled: May 3, 2011Publication date: November 3, 2011Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KGInventors: Matthias BECKER, Robert HEINEMANN
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Publication number: 20110056446Abstract: An anti-rotation device (1) for a coupling piston (2) in a switchable component (3) of a valve train of an internal combustion engine is provided, with the component (3) including two parts (4, 5) that are movable relative to each other.Type: ApplicationFiled: August 6, 2010Publication date: March 10, 2011Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KGInventors: Matthias Becker, Robert Heinemann
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Patent number: 7900591Abstract: The invention proposes a switchable component (1) for a valve train of an internal combustion engine, said component (1) comprising a housing (2) in whose bore (3) an axially displaceable inner element (4) comprising coupling elements (5) is received, said coupling elements (5), for effecting coupling, being able to be brought partially into engagement with an entraining surface (6) of the housing (2), the inner element (4) being biased in outward direction from the housing (2) by a lost motion spring (7), and an (outer) anti-rotation device (11) extending from an outer casing (10) of the housing (2) projects beyond a surrounding structure (12a), the outer anti-rotation device (11) is configured as a C-shaped, thin-walled ring (13) comprising a slit (12), said ring (13) extends after the manner of a clip in an annular groove (14) in the outer casing (10) of the housing (2) parallel to a transversal plane of the component (1) and, for effecting outer anti-rotation, said ring (13) projects with a sickle-like poType: GrantFiled: October 9, 2008Date of Patent: March 8, 2011Assignee: Schaeffler KGInventors: Bodo Roerig, Joachim Seitz, Robert Heinemann