Patents by Inventor Christoph Betz
Christoph Betz 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: 10190448Abstract: A hydraulic camshaft adjuster of the vane cell type, including a rotor and a stator and including a cover having fastening holes extending all the way through for accommodating fasteners. Via the fasteners the cover is fastened at an end face to the stator. The cover has a locking hole, into which a locking pin accommodated in the rotor can be displaced in an axial direction in order to lock the rotor in relation to the stator.Type: GrantFiled: March 4, 2015Date of Patent: January 29, 2019Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Stefan Schelter, Christoph Betz
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Patent number: 9963129Abstract: A control device for a vehicle braking system including an electronic device to control at least one first hydraulic component and second hydraulic component of the braking system so that a first brake pressure in at least one first wheel brake cylinder of a first brake circuit of the braking system is settable corresponding to a predefined first setpoint brake pressure or a setpoint brake pressure profile, and a second brake pressure is settable in at least one second wheel brake cylinder of a second brake circuit of the braking system corresponding to a predefined second setpoint brake pressure or setpoint brake pressure profile, the electronic device being configured to select an operating mode to be performed from at least two workable operating modes based on at least one provided specified variable. Also described is a braking system for a vehicle and a method for operating a vehicle braking system.Type: GrantFiled: January 10, 2014Date of Patent: May 8, 2018Assignee: ROBERT BOSCH GMBHInventors: Christoph Betz, Michael Reichert, Michael Bunk
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Patent number: 9957849Abstract: A camshaft adjuster having a drive element, an output element and a spring, wherein the drive element and the output element can rotate relative to each other, wherein the spring is secured by a spring bearing of the drive element and a spring bearing of the output element, wherein the spring supports the relative rotation between the drive element and the output element, wherein the spring bearing has a radius that is larger than the radius of the spring and, as a result of this ratio of the radii, a two-line contact between the spring and the spring bearing is formed.Type: GrantFiled: February 11, 2014Date of Patent: May 1, 2018Assignee: Schaeffler Technologies AG & Co. KGInventor: Christoph Betz
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Publication number: 20170101904Abstract: A hydraulic camshaft adjuster of the vane cell type, including a rotor and a stator and including a cover having fastening holes extending all the way through for accommodating fasteners. Via the fasteners the cover is fastened at an end face to the stator. The cover has a locking hole, into which a locking pin accommodated in the rotor can be displaced in an axial direction in order to lock the rotor in relation to the stator.Type: ApplicationFiled: March 4, 2015Publication date: April 13, 2017Inventors: Stefan Schelter, Christoph Betz
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Patent number: 9550482Abstract: A method for operating a braking system of a vehicle includes: establishing a first setpoint brake pressure to be set in a first wheel brake cylinder of a first brake circuit and a second setpoint brake pressure to be set in a second wheel brake cylinder of a second brake circuit; reducing first and second actual brake pressures by setting a master brake cylinder pressure to be no greater than a minimum of the first and second setpoint brake pressures, and controlling a first switchover valve of the first brake circuit and/or of the second brake circuit; and/or increasing the first and second actual brake pressures by setting the master brake cylinder pressure to be no smaller than a maximum of the first and second setpoint brake pressures, and activating a first wheel inlet valve of the first brake circuit and/or of the second brake circuit.Type: GrantFiled: October 14, 2013Date of Patent: January 24, 2017Assignee: Robert Bosch GmbHInventors: Christoph Betz, Christian Koehler, Michael Reichert, Michael Bunk, Olaf Grotheer
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Publication number: 20160281548Abstract: A camshaft adjusting device including a stator which is connectable to a crankshaft of an internal combustion engine and a rotor which is connectable to a camshaft and rotatably supported with respect to the stator and a locking device for locking the rotor with respect to the stator with a locking slide (2) fixed to the stator or fixed to the rotor and produced by a powder metallurgy process and at least one locking pin lockable in the locking slide (2), in at least one section of a surface edge zone (3) the locking slide (2) having a higher density compared to the density of the base material of the locking slide (2).Type: ApplicationFiled: August 28, 2014Publication date: September 29, 2016Inventors: Christoph Betz, Stefan Sebald
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Publication number: 20160115828Abstract: A camshaft adjuster having a drive element, an output element and a spring, wherein the drive element and the output element can rotate relative to each other, wherein the spring is secured by a spring bearing of the drive element and a spring bearing of the output element, wherein the spring supports the relative rotation between the drive element and the output element, wherein the spring bearing has a radius that is larger than the radius of the spring and, as a result of this ratio of the radii, a two-line contact between the spring and the spring bearing is formed.Type: ApplicationFiled: February 11, 2014Publication date: April 28, 2016Applicant: Schaeffler Technologies AG & CO. KGInventor: Christoph BETZ
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Publication number: 20160009258Abstract: A control device for a vehicle braking system including an electronic device to control at least one first hydraulic component and second hydraulic component of the braking system so that a first brake pressure in at least one first wheel brake cylinder of a first brake circuit of the braking system is settable corresponding to a predefined first setpoint brake pressure or a setpoint brake pressure profile, and a second brake pressure is settable in at least one second wheel brake cylinder of a second brake circuit of the braking system corresponding to a predefined second setpoint brake pressure or setpoint brake pressure profile, the electronic device being configured to select an operating mode to be performed from at least two workable operating modes based on at least one provided specified variable. Also described is a braking system for a vehicle and a method for operating a vehicle braking system.Type: ApplicationFiled: January 10, 2014Publication date: January 14, 2016Inventors: Christoph Betz, Michael Reichert, Michael Bunk
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Publication number: 20150367824Abstract: A method for operating a braking system of a vehicle includes: establishing a first setpoint brake pressure to be set in a first wheel brake cylinder of a first brake circuit and a second setpoint brake pressure to be set in a second wheel brake cylinder of a second brake circuit; reducing first and second actual brake pressures by setting a master brake cylinder pressure to be no greater than a minimum of the first and second setpoint brake pressures, and controlling a first switchover valve of the first brake circuit and/or of the second brake circuit; and/or increasing the first and second actual brake pressures by setting the master brake cylinder pressure to be no smaller than a maximum of the first and second setpoint brake pressures, and activating a first wheel inlet valve of the first brake circuit and/or of the second brake circuit.Type: ApplicationFiled: October 14, 2013Publication date: December 24, 2015Inventors: Christoph Betz, Christian Koehler, Michael Reichert, Michael Bunk, Olaf Grotheer
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Patent number: 8950369Abstract: A device for varying the angular position of a camshaft relative to a crankshaft of an internal combustion engine. The device has a drive element, which is driven by the crankshaft via a gearwheel and which is supported so that it can rotate in relation to the camshaft. The device also has at least two hydraulic chambers, to which a hydraulic fluid can be admitted in order to set a defined relative rotational position between the drive element and the camshaft, formed between the drive element and the camshaft. In order to produce an optimum axial support of the camshaft in terms of weight and cost, the gearwheel form a bearing face for the axial contact of the camshaft or of a component rotationally fixed to the latter.Type: GrantFiled: September 17, 2010Date of Patent: February 10, 2015Assignee: Schaeffler Technologies GmbH & Co. KGInventors: Rainer Ottersbach, Juergen Weber, Christoph Betz
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Patent number: 8851034Abstract: A hydraulic camshaft phaser includes an outer rotor and an inner rotor rotationally adjustable and arranged concentrically about a common axis of rotation. At least one hydraulic chamber is formed between the outer rotor and the inner rotor, into which hydraulic chamber at least one connected vane extends from each of the outer rotor and the inner rotor, thereby dividing the hydraulic chamber into at least one pressure chamber pair formed by two pressure chambers. The inner rotor has a circular opening extending concentrically along the axis of rotation, a sealing portion being formed on the inner surface of the circular opening between two axial faces of the inner rotor, and the opening having a larger inner diameter on both sides of the sealing portion than in the sealing portion. The inner rotor is a sintered part, and the sealing portion of the inner rotor is calibrated.Type: GrantFiled: July 25, 2013Date of Patent: October 7, 2014Assignee: Schaeffler Technologies AG & Co. KGInventors: Olaf Boese, Christoph Betz
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Patent number: 8844483Abstract: A clamping disk (1) for the non-positive connection of components in a cam adjusting system, a cam adjusting system (15) having a clamping disk (1) and a method for checking the mounting of the clamping disk (1) are provided. The clamping disk (1) has an essentially circular base body (2) which has at least one friction surface for a contact partner. The base body (2) is axially penetrated by a material recess (10). The mounting of the clamping disk (1) can be controlled in a simple manner by distance measuring.Type: GrantFiled: February 8, 2011Date of Patent: September 30, 2014Assignee: Schaeffler Technologies GmbH & Co. KGInventors: Rainer Ottersbach, Christoph Betz, Rudiger Herzog, Stefan Christel, Stefan Sebald, Uwe Stollberger
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Publication number: 20140026835Abstract: A hydraulic camshaft phaser includes an outer rotor and an inner rotor rotationally adjustable and arranged concentrically about a common axis of rotation. At least one hydraulic chamber is formed between the outer rotor and the inner rotor, into which hydraulic chamber at least one connected vane extends from each of the outer rotor and the inner rotor, thereby dividing the hydraulic chamber into at least one pressure chamber pair formed by two pressure chambers. The inner rotor has a circular opening extending concentrically along the axis of rotation, a sealing portion being formed on the inner surface of the circular opening between two axial faces of the inner rotor, and the opening having a larger inner diameter on both sides of the sealing portion than in the sealing portion. The inner rotor is a sintered part, and the sealing portion of the inner rotor is calibrated.Type: ApplicationFiled: July 25, 2013Publication date: January 30, 2014Applicant: Schaeffler Technologies AG & Co. KGInventors: Olaf Boese, Christoph Betz
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Patent number: 8489301Abstract: A device for controlling the brake pressure in a hydraulic brake system with the aid of a pressure-limiting valve that limits the brake pressure to a predefined threshold value, and to that end is driven by an electronic device in accordance with a valve characteristic curve. The setting accuracy can be improved considerably if an estimating unit for estimating the brake pressure, a sensor system for measuring the brake pressure, a unit for determining a pressure difference between the measured brake pressure and the estimated brake pressure, as well as a controller unit which drives the pressure-limiting valve as a function of the pressure difference are provided.Type: GrantFiled: May 3, 2007Date of Patent: July 16, 2013Assignee: Robert Bosch GmbHInventors: Bettina Crepin, Michael Bunk, Roland Galbas, Ralf Kinder, Matthias Schanzenbach, Christoph Betz
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Patent number: 8479695Abstract: A device for varying the relative angular position of a camshaft (2) with respect to a crankshaft of an internal combustion engine. The device has a drive element which is driven by the crankshaft via a gearwheel and which is mounted rotatably with respect to the camshaft. Between the drive element and the camshaft, there is at least two hydraulic chambers which can be acted upon with a pressure fluid in order to set a defined relative rotary position between the drive element and the camshaft.Type: GrantFiled: September 17, 2010Date of Patent: July 9, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Rainer Ottersbach, Jürgen Weber, Christoph Betz
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Publication number: 20120304946Abstract: A clamping disk (1) for the non-positive connection of components in a cam adjusting system, a cam adjusting system (15) having a clamping disk (1) and a method for checking the mounting of the clamping disk (1) are provided. The clamping disk (1) has an essentially circular base body (2) which has at least one friction surface for a contact partner. The base body (2) is axially penetrated by a material recess (10). The mounting of the clamping disk (1) can be controlled in a simple manner by distance measuring.Type: ApplicationFiled: February 8, 2011Publication date: December 6, 2012Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Rainer Ottersbach, Christoph Betz, Rudiger Herzog, Stefan Christel, Stefan Sebald, Uwe Stollberger
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Publication number: 20110067656Abstract: A device for varying the relative angular position of a camshaft (2) with respect to a crankshaft of an internal combustion engine. The device has a drive element which is driven by the crankshaft via a gearwheel and which is mounted rotatably with respect to the camshaft. Between the drive element and the camshaft, there is at least two hydraulic chambers which can be acted upon with a pressure fluid in order to set a defined relative rotary position between the drive element and the camshaft.Type: ApplicationFiled: September 17, 2010Publication date: March 24, 2011Applicant: Schaeffler Technologies GmbH & Co. KGInventors: Rainer OTTERSBACH, Jürgen WEBER, Christoph BETZ
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Publication number: 20110067655Abstract: A device for varying the angular position of a camshaft relative to a crankshaft of an internal combustion engine. The device has a drive element, which is driven by the crankshaft via a gearwheel and which is supported so that it can rotate in relation to the camshaft. The device also has at least two hydraulic chambers, to which a hydraulic fluid can be admitted in order to set a defined relative rotational position between the drive element and the camshaft, formed between the drive element and the camshaft. In order to produce an optimum axial support of the camshaft in terms of weight and cost, the gearwheel form a bearing face for the axial contact of the camshaft or of a component rotationally fixed to the latter.Type: ApplicationFiled: September 17, 2010Publication date: March 24, 2011Applicant: SCHAEFFLER KGInventors: Rainer Ottersbach, Juergen Weber, Christoph Betz
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Publication number: 20090210127Abstract: A device for controlling the brake pressure in a hydraulic brake system with the aid of a pressure-limiting valve that limits the brake pressure to a predefined threshold value, and to that end is driven by an electronic device in accordance with a valve characteristic curve. The setting accuracy can be improved considerably if an estimating unit for estimating the brake pressure, a sensor system for measuring the brake pressure, a unit for determining a pressure difference between the measured brake pressure and the estimated brake pressure, as well as a controller unit which drives the pressure-limiting valve as a function of the pressure difference are provided.Type: ApplicationFiled: May 3, 2007Publication date: August 20, 2009Inventors: Bettina Crepin, Michael Bunk, Roland Galbas, Ralf Kinder, Matthias Schanzenbach, Christoph Betz