Patents by Inventor Heinrich Kreh
Heinrich Kreh 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: 10543824Abstract: A modular braking device for a hydraulic motor vehicle brake system, which is optimized for remote actuation, including a hydraulic booster stage with a booster housing, a main brake cylinder mounted thereon, a booster piston which is displaceable therein and delimits a pressure chamber which is supplied directly with pressure medium by a motor pump unit.Type: GrantFiled: November 18, 2016Date of Patent: January 28, 2020Assignee: Continental Teves AG & Co. oHGInventors: Jose Gonzalez, Heinrich Kreh, Adrian Messner, Manfred Rüffer, Paul Wiebe, Falk Petzold, Michael Jürging, Ricardo Toquero, Lothar Schiel, Stefan Drumm
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Patent number: 10508649Abstract: A simple, compact, and economical motor/pump unit for supplying vacuum to a pneumatic brake booster of a motor-vehicle brake system, wherein the motor/pump unit is designed as a diaphragm pump having a single elastomeric diaphragm, which is moved by an electrically operated motor unit by an eccentric drive, and has a pump housing and a working-space cover and the diaphragm is clamped between the pump housing and the working-space cover at the radial outer edge of the diaphragm in a sealing manner and the working-space cover is designed as a multi-part working-space cover having an upper cover, a lower cover, and an inlet valve and an outlet valve, which are arranged between the upper cover and the lower cover and control the air circulation through the working space.Type: GrantFiled: March 15, 2016Date of Patent: December 17, 2019Assignee: Continental Teves AG & Co. oHGInventors: Stephan Krebs, Michael Jürging, Manfred Rüffer, Heinrich Kreh, Jens Bacher, Ricardo Toquero, Jose Gonzalez, Marcel Niepenberg, Lazar Milisic, Falk Petzold, Hans-Michael Koppel, Paul Wiebe, Martina Breitkopf, Thomas Oeffner, Adrian Messner, Ulrike Meyer, Stefan Imhof, Rolf Fellinger
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Patent number: 10493971Abstract: In an electric motor-pump assembly, two working diaphragms, each delimiting a working chamber, are cyclically driven by a crank drive via connecting rods. The crank drive includes eccentrics for each connecting rod, which are placed on an axial bearing journal in the extension of an output shaft of an electric motor. In order to ensure a rotationally fixed connection between the eccentrics and the bearing journal to be produced and in order to ensure an angularly precise position of the two eccentrics, each of the eccentrics is connected to the bearing journal by a positively locking engagement.Type: GrantFiled: August 17, 2015Date of Patent: December 3, 2019Assignee: Continental Teves AG & Co. oHGInventors: Heinrich Kreh, Michael Jürging, Marcel Niepenberg, Jose Gonzalez, Hans-Michael Koppel, Manfred Rüffer
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Publication number: 20180312150Abstract: A modular braking device for a hydraulic motor vehicle brake system, which is optimized for remote actuation, including a hydraulic booster stage with a booster housing, a main brake cylinder mounted thereon, a booster piston which is displaceable therein and delimits a pressure chamber which is supplied directly with pressure medium by a motor pump unit.Type: ApplicationFiled: November 18, 2016Publication date: November 1, 2018Inventors: Jose Gonzalez, Heinrich Kreh, Adrian Messner, Manfred Rüffer, Paul Wiebe, Falk Petzold, Michael Jürging, Ricardo Toquero, Lothar Schiel, Stefan Drumm
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Publication number: 20180073500Abstract: A simple, compact, and economical motor/pump unit for supplying vacuum to a pneumatic brake booster of a motor-vehicle brake system, wherein the motor/pump unit is designed as a diaphragm pump having a single elastomeric diaphragm, which is moved by an electrically operated motor unit by an eccentric drive, and has a pump housing and a working-space cover and the diaphragm is clamped between the pump housing and the working-space cover at the radial outer edge of the diaphragm in a sealing manner and the working-space cover is designed as a multi-part working-space cover having an upper cover, a lower cover, and an inlet valve and an outlet valve, which are arranged between the upper cover and the lower cover and control the air circulation through the working space.Type: ApplicationFiled: March 15, 2016Publication date: March 15, 2018Inventors: Stephan Krebs, Michael Jürging, Manfred Rüffer, Heinrich Kreh, Jens Bacher, Ricardo Toquero, Jose Gonzalez, Marcel Niepenberg, Lazar Milisic, Falk Petzold, Hans-Michael Koppel, Paul Wiebe, Martina Breitkopf, Thomas Oeffner, Adrian Messner, Ulrike Meyer, Stefan Imhof, Rolf Fellinger
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Patent number: 9828981Abstract: The invention relates to a pump unit that can be driven by an electric motor, in particular for providing vacuum for a pneumatic brake booster, including a pump housing that can be closed by a working-chamber cover and at least one elastic displacement element, wherein a working chamber is bounded between the displacement element and the working-chamber cover and wherein inlet valves and outlet valves and inlet channels and outlet channels associated with the valves are associated with the working chamber. According to the invention, in order to reduce noise emissions, devices for reducing a contact surface between the working-chamber cover and the pump housing are provided.Type: GrantFiled: February 1, 2013Date of Patent: November 28, 2017Assignee: Continental Teves AG & Co. oHGInventors: Stephan Krebs, Jens Bacher, Heinrich Kreh, Lazar Milisic, Michael Jürging, Marcel Niepenberg, Jose Gonzalez, Karlheinz Seitz, Hans-Michael Koppel, Falk Petzold, Rolf Fellinger, Stefan Imhof, Thomas Oeffner, Paul Wiebe, Manfred Rüffer
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Patent number: 9784264Abstract: A pump assembly for supplying negative pressure to a pneumatic brake booster, wherein the pump assembly has at least two elastic displacement elements which are moved by connecting rods, the connecting rods each being rotatably mounted on an eccentric element. The eccentric element has a bearing seat element and a force element. At least two eccentric elements are secured next to each other on a drive shaft that rotates about an axis of rotation and an interlocking anti-rotation device is provided that determines a defined angular position of the eccentric elements relative to each other about the axis of rotation. In order to improve the ease of assembly and simplify the manufacturability, the anti-rotation device is designed as shaped elements of the bearing seat element in such a way that they engage in each other in an interlocking manner when the eccentric elements are in a defined angular position relative to each other.Type: GrantFiled: April 25, 2014Date of Patent: October 10, 2017Assignee: Continental Teves AG & Co. oHGInventors: Stephan Krebs, Jens Bacher, Heinrich Kreh, Lazar Milisic, Michael Jürging, Marcel Niepenberg, Jose Gonzalez, Karlheinz Seitz, Hans-Michael Koppel, Falk Petzold, Rolf Fellinger, Thomas Oeffner, Paul Wiebe, Stefan Imhof, Manfred Rüffer
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Publication number: 20170274886Abstract: In an electric motor-pump assembly, two working diaphragms, each delimiting a working chamber, are cyclically driven by a crank drive via connecting rods. The crank drive includes eccentrics for each connecting rod, which are placed on an axial bearing journal in the extension of an output shaft of an electric motor. In order to ensure a rotationally fixed connection between the eccentrics and the bearing journal to be produced and in order to ensure an angularly precise position of the two eccentrics, each of the eccentrics is connected to the bearing journal by a positively locking engagement.Type: ApplicationFiled: August 17, 2015Publication date: September 28, 2017Applicant: Continental Teves AG & Co. oHGInventors: Heinrich Kreh, Michael Jürging, Marcel Niepenberg, Jose Gonzalez, Hans-Michael Koppel, Manfred Rüffer
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Patent number: 9657752Abstract: A master cylinder for a regulated braking system having at least one piston, which is movable in a housing and which is sealed from a pressure chamber by a sealing element arranged in a ring groove of the housing, which can be connected to an unpressurized supply chamber by control passages designed in the pistons. In order to reduce the flow resistance of the control passages at the same dead stroke, the control passages have a control edge designed parallel to a piston end face of at least one of the pistons.Type: GrantFiled: December 15, 2010Date of Patent: May 23, 2017Assignee: Continental Teves AG & Co. oHGInventors: Harald König, Andreas Bischoff, Peter Drott, Makato Inaba, Heinrich Kreh, Udo Jungmann, Filip Janosek
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Publication number: 20160102662Abstract: A pump assembly for supplying negative pressure to a pneumatic brake booster, wherein the pump assembly has at least two elastic displacement elements which are moved by connecting rods, the connecting rods each being rotatably mounted on an eccentric element. The eccentric element has a bearing seat element and a force element. At least two eccentric elements are secured next to each other on a drive shaft that rotates about an axis of rotation and an interlocking anti-rotation device is provided that determines a defined angular position of the eccentric elements relative to each other about the axis of rotation. In order to improve the ease of assembly and simplify the manufacturability, the anti-rotation device is designed as shaped elements of the bearing seat element in such a way that they engage in each other in an interlocking manner when the eccentric elements are in a defined angular position relative to each other.Type: ApplicationFiled: April 25, 2014Publication date: April 14, 2016Inventors: Stephan Krebs, Jens Bacher, Heinrich Kreh, Lazar Milisic, Michael Jürging, Marcel Niepenberg, Jose Gonzalez, Karlheinz Seitz, Hans-Michael Koopel, Falk Petzold, Rolf Fellinger, Thomas Oeffner, Paul Wiebe, Stefan Imhof, Manfred Rüffer
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Patent number: 9234515Abstract: A motor-pump unit, for providing pressure for a brake actuating device having a pneumatic brake booster including a pump and an electric motor driving the pump, the pump being a dual diaphragm pump having two opposed working diaphragms, each of which is clamped between a pump casing and a working chamber cover and delimits a working chamber, and moveable by a crank drive having connecting rods and bearings, the working diaphragm connected firmly to a tappet and, together with the connecting rod, in each case forming a diaphragm unit. In order to provide a low-noise motor-pump unit which is more cost-effective and requires reduced expenditure on assembly, the connecting rods are made of plastic, wherein in each case one tappet and one bearing are encapsulated with the material of the connecting rod. Alternatively, the connecting rods can be formed in one piece with the tappet and provided as sintered components.Type: GrantFiled: December 16, 2010Date of Patent: January 12, 2016Assignee: Continental Teves AG & Co. oHGInventors: Manfred Rüffer, Jens Bacher, Heinrich Kreh, Lazar Milisic, Michael Jürging, Marcel Niepenberg, Jose Gonzalez, Harald König
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Publication number: 20150030476Abstract: The invention relates to a pump unit that can be driven by an electric motor, in particular for providing vacuum for a pneumatic brake booster, including a pump housing that can be closed by a working-chamber cover and at least one elastic displacement element, wherein a working chamber is bounded between the displacement element and the working-chamber cover and wherein inlet valves and outlet valves and inlet channels and outlet channels associated with the valves are associated with the working chamber. According to the invention, in order to reduce noise emissions, devices for reducing a contact surface between the working-chamber cover and the pump housing are provided.Type: ApplicationFiled: February 1, 2013Publication date: January 29, 2015Inventors: Stephan Krebs, Jens Bacher, Heinrich Kreh, Lazar Milisic, Michael Jürging, Marcel Niepenberg, Jose Gonzalez, Karlheinz Seitz, Hans-Michael Koppel, Falk Petzold, Rolf Fellinger, Stefan Imhof, Thomas Oeffner, Paul Wiebe, Manfred Rüffer
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Patent number: 8926293Abstract: Disclosed is a motor-pump assembly (1) for a brake actuating device of a motor vehicle brake system with a pneumatic brake booster. An electric motor (3) drives a double diaphragm pump (2) with two working diaphragms (4) which are located opposite one another. Air expelled from the working spaces (7) is directed into an interior space (22) surrounding a crank drive (8) of the pump housing (5). An air outlet unit (13) permits low-noise expulsion of the air from the interior space 22 by deflecting the air. In order to make available a low-noise, cost-reduced motor-pump assembly the eccentrics (9) each have an unbalance weight (25) integrally molded onto the eccentric (9).Type: GrantFiled: December 15, 2009Date of Patent: January 6, 2015Assignee: Continental Teves AG & Co. OHGInventors: Manfred Rüffer, Jens Bacher, Heinrich Kreh, Lazar Milisic, Karlheinz Seitz, Harald König, Michael Kollers, Jose Gonzalez, Michael Jürging, Marcel Niepenberg, Stephan Krebs
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Patent number: 8714941Abstract: Disclosed is a motor-pump assembly (1) for a brake actuating device of a motor vehicle brake system with a pneumatic brake booster. An electric motor (3) drives a double diaphragm pump (2) with two working diaphragms (4) which are located opposite one another. Air expelled from the working spaces (7) is directed into an interior space (22) surrounding a crank drive (8) of the pump housing (5). An air outlet unit (23, 53) has a filter housing (32, 54), a filter (33, 59), an air outlet cover (34, 56), a valve holding element (38, 70) and a valve body (31). A partition wall (37, 55) deflects the air emerging from the interior space (22) in the air outlet unit (23, 53 between the filter housing (32, 54) and the air outlet cover (34, 56), with an integrally molded valve holding element (38, 70).Type: GrantFiled: December 15, 2009Date of Patent: May 6, 2014Assignee: Continental Teves AG & Co. OHGInventors: Manfred Rüffer, Jens Bacher, Heinrich Kreh, Lazar Milisic, Karlheinz Seitz, Harald König, Michael Kollers, Jose Gonzalez, Michael Jürging, Marcel Niepenberg, Stephan Krebs
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Publication number: 20130213033Abstract: A master cylinder for a regulated braking system having at least one piston, which is movable in a housing and which is sealed from a pressure chamber by a sealing element arranged in a ring groove of the housing, which can be connected to an unpressurized supply chamber by control passages designed in the pistons. In order to reduce the flow resistance of the control passages at the same dead stroke, the control passages have a control edge designed parallel to a piston end face of at least one of the pistons.Type: ApplicationFiled: December 15, 2010Publication date: August 22, 2013Applicant: Continental Teves AG & Co. oHGInventors: Harald Konig, Andreas Bischoff, Peter Drott, Makato Inaba, Heinrich Kreh, Udo Jungmann, Filip Janosek
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Publication number: 20120269664Abstract: A motor-pump unit, for providing pressure for a brake actuating device having a pneumatic brake booster including a pump and an electric motor driving the pump, the pump being a dual diaphragm pump having two opposed working diaphragms, each of which is clamped between a pump casing and a working chamber cover and delimits a working chamber, and moveable by a crank drive having connecting rods and bearings, the working diaphragm connected firmly to a tappet and, together with the connecting rod, in each case forming a diaphragm unit. In order to provide a low-noise motor-pump unit which is more cost-effective and requires reduced expenditure on assembly, the connecting rods are made of plastic, wherein in each case one tappet and one bearing are encapsulated with the material of the connecting rod. Alternatively, the connecting rods can be formed in one piece with the tappet and provided as sintered components.Type: ApplicationFiled: December 16, 2010Publication date: October 25, 2012Applicant: CONTINENTAL TEVES AG & CO. OHGInventors: Manfred Rüffer, Jens Bacher, Heinrich Kreh, Lazar Milisic, Michael Jürging, Marcel Niepenberg, Jose Gonzalez, Harald König
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Publication number: 20110277464Abstract: Disclosed is a motor-pump assembly (1) for a brake actuating device of a motor vehicle brake system with a pneumatic brake booster. An electric motor (3) drives a double diaphragm pump (2) with two working diaphragms (4) which are located opposite one another. Air expelled from the working spaces (7) is directed into an interior space (22) surrounding a crank drive (8) of the pump housing (5). An air outlet unit (23, 53) has a filter housing (32, 54), a filter (33, 59), an air outlet cover (34, 56), a valve holding element (38, 70) and a valve body (31). A partition wall (37, 55) deflects the air emerging from the interior space (22) in the air outlet unit (23, 53 between the filter housing (32, 54) and the air outlet cover (34, 56), with an integrally molded valve holding element (38, 70).Type: ApplicationFiled: December 15, 2009Publication date: November 17, 2011Applicant: ONTINENTAL TEVES AG & CO. OHGInventors: Manfred Rüffer, Jens Bacher, Heinrich Kreh, Lazar Milisic, Karlheinz Seitz, Harald König, Michael Kollers, Jose Gonzalez, Michael Jürging, Marcel Niepenberg, Stephan Krebs
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Publication number: 20110271670Abstract: Disclosed is a motor-pump assembly (1) for a brake actuating device of a motor vehicle brake system with a pneumatic brake booster. An electric motor (3) drives a double diaphragm pump (2) with two working diaphragms (4) which are located opposite one another. Air expelled from the working spaces (7) is directed into an interior space (22) surrounding a crank drive (8) of the pump housing (5). An air outlet unit (13) permits low-noise expulsion of the air from the interior space 22 by deflecting the air. In order to make available a low-noise, cost-reduced motor-pump assembly the eccentrics (9) each have an unbalance weight (25) integrally molded onto the eccentric (9).Type: ApplicationFiled: December 15, 2009Publication date: November 10, 2011Applicant: CONTINENTAL TEVES AG & CO. AGInventors: Stephan Krebs, Manfred Rüffer, Jens Bacher, Heinrich Kreh, Lazar Milisic, Kartheinz Seitz, Harald König, Michael Kollers, Jose Gonzalez, Michael Jürging, Marcel Niepenberg
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Publication number: 20070182403Abstract: Disclosed is a device for monitoring the position and movement of a brake pedal, including a master cylinder 1; 102 with an integrated position generator for monitoring the position of a piston 2; 105 within a housing 6; 103 for use in a controlled brake system for motor vehicles, in particular with driving dynamics control, and the position generator includes a magnet 35; 150 as a signal transmitter which transmits a magnetic field in the direction of a sensor element 36; 151 being stationary on the housing 6; 103, and is connectable to an electronic control unit. To monitor a push rod piston even during a driving dynamics control operation, it is disclosed that the magnet 35; 150 is arranged between two pistons 2, 3; 105, 106 and is displaceable in relation to at least one of the pistons 2, 3; 105, 106.Type: ApplicationFiled: April 7, 2004Publication date: August 9, 2007Inventors: Holger von Hayn, Jurgen Schonlau, Manfred Ruffer, Wolfgang Ritter, Milian Klimes, Torsten Queisser, Heinrich Kreh, Thomas Voigtmann
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Patent number: 5953916Abstract: To ensure pressure compensation and the replenishment function of a master cylinder, the present invention discloses the provision of supply channels configured as slits (40). The slits (40) are adequate to ensure pressure compensation and the replenishment action when the brake system is bled. Due to their large cross-section, the slits permit a large fluid flow which is required, for example, to supply the pump in brake systems which independently initiate a braking operation.Type: GrantFiled: May 26, 1998Date of Patent: September 21, 1999Assignee: ITT Manufacturing Enterprises Inc.Inventors: Gerhard Wurl, Udo Jungmann, Harald Konig, Heinrich Kreh