Patents by Inventor Dietmar Uhlenbrock
Dietmar Uhlenbrock 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: 11821351Abstract: A method for operating an exhaust gas burner that is situated in an exhaust gas system downstream from an internal combustion engine of a motor vehicle during a start phase of the exhaust gas burner, in which the internal combustion engine is not fired. The method includes an incremental increasing of the air mass flow supplied to the exhaust gas burner and an incremental varying of a fuel mass flow supplied to the exhaust gas burner.Type: GrantFiled: June 30, 2022Date of Patent: November 21, 2023Assignee: ROBERT BOSCH GMBHInventors: Christian Disch, Dietmar Uhlenbrock, Max Braunbeck, William Krein
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Publication number: 20230258116Abstract: The invention relates to A method for operating a fuel-operated burner (3) downstream of an engine (1) and upstream of a catalytic converter (4), comprising an actuation of an ignition apparatus (12) of the burner (3) during a pre-definable preheating phase, without delivering fuel (11) to the burner (3) during the preheating phase, and, after the end of the preheating phase, a timely delivery of fuel (11) to the burner (3) and combustion of the delivered fuel (11) in the burner (3). Further, a computing unit and a computer program product for carrying out such a method are proposed.Type: ApplicationFiled: February 16, 2023Publication date: August 17, 2023Inventors: Chao Zhang, Dietmar Uhlenbrock, Erwin Schiele, Winfried Langer, Markus Deissler, Michael Nau
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Patent number: 11629622Abstract: A method for operating an exhaust gas burner (3) downstream of an internal combustion engine (1) and upstream of an exhaust gas catalytic converter (4), comprising controlling an ignition device (12) of the exhaust gas burner (3) during a predeterminable preheating phase without supplying fuel (11) to the exhaust gas burner (3) during the preheating phase and, after completion of the preheating phase, supplying fuel (11) to the exhaust gas burner (3) and burning the supplied fuel (11) in the exhaust gas burner (3). A processor unit and a computer program product for carrying out such a method are furthermore proposed.Type: GrantFiled: March 29, 2022Date of Patent: April 18, 2023Assignee: Robert Bosch GmbHInventor: Dietmar Uhlenbrock
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Publication number: 20230003157Abstract: A method for operating an exhaust gas burner that is situated in an exhaust gas system downstream from an internal combustion engine of a motor vehicle during a start phase of the exhaust gas burner, in which the internal combustion engine is not fired. The method includes an incremental increasing of the air mass flow supplied to the exhaust gas burner and an incremental varying of a fuel mass flow supplied to the exhaust gas burner.Type: ApplicationFiled: June 30, 2022Publication date: January 5, 2023Inventors: Christian Disch, Dietmar Uhlenbrock, Max Braunbeck, William Krein
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Publication number: 20220307401Abstract: A method for operating an exhaust gas burner (3) downstream of an internal combustion engine (1) and upstream of an exhaust gas catalytic converter (4), comprising controlling an ignition device (12) of the exhaust gas burner (3) during a predeterminable preheating phase without supplying fuel (11) to the exhaust gas burner (3) during the preheating phase and, after completion of the preheating phase, supplying fuel (11) to the exhaust gas burner (3) and burning the supplied fuel (11) in the exhaust gas burner (3). A processor unit and a computer program product for carrying out such a method are furthermore proposed.Type: ApplicationFiled: March 29, 2022Publication date: September 29, 2022Inventor: Dietmar Uhlenbrock
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Patent number: 11261853Abstract: A piston pump, in particular a high-pressure fuel pump for an internal combustion engine, includes a pump housing, a pump piston, and a delivery chamber that is delimited at least by the pump housing and the pump piston. The piston pump further includes a seal configured to seal the delivery chamber and a separate guide element configured to guide the pump piston. The seal and the guide element are arranged between the pump piston and the pump housing. The seal is formed as a plastic ring with a substantially sleeve-shaped base portion.Type: GrantFiled: June 7, 2018Date of Patent: March 1, 2022Assignee: Robert Bosch GmbHInventors: Siamend Flo, Oliver Albrecht, Frank Nitsche, Andreas Plisch, Dietmar Uhlenbrock, Olaf Schoenrock, Jurij Giesler, Ekrem Cakir
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Patent number: 11168677Abstract: A piston pump, in particular high-pressure fuel pump for an internal combustion engine, includes a pump housing, a pump piston and a conveying chamber defined at least by the pump piston and the pump housing. A seal for sealing the conveying chamber and a separate guide element for guiding the pump piston may be arranged between the pump piston and the pump housing. The seal is designed as a metal sleeve, and may have a radially outwardly projecting web.Type: GrantFiled: June 7, 2018Date of Patent: November 9, 2021Assignee: Robert Bosch GmbHInventors: Siamend Flo, Oliver Albrecht, Frank Nitsche, Olaf Schoenrock, Jurij Giesler, Andreas Plisch, Dietmar Uhlenbrock, Ekrem Cakir
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Publication number: 20200224646Abstract: A piston pump, in particular high-pressure fuel pump for an internal combustion engine, includes a pump housing, a pump piston and a conveying chamber defined at least by the pump piston and the pump housing. A seal for sealing the conveying chamber and a separate guide element for guiding the pump piston may be arranged between the pump piston and the pump housing. The seal is designed as a metal sleeve, and may have a radially outwardly projecting web.Type: ApplicationFiled: June 7, 2018Publication date: July 16, 2020Inventors: Siamend Flo, Oliver Albrecht, Frank Nitsche, Olaf Schoenrock, Jurij Giesler, Andreas Plisch, Dietmar Uhlenbrock, Ekrem Cakir
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Publication number: 20200191129Abstract: A piston pump, in particular a high-pressure fuel pump for an internal combustion engine, includes a pump housing, a pump piston, and a delivery chamber that is delimited at least by the pump housing and the pump piston. The piston pump further includes a seal configured to seal the delivery chamber and a separate guide element configured to guide the pump piston. The seal and the guide element are arranged between the pump piston and the pump housing. The seal is formed as a plastic ring with a substantially sleeve-shaped base portion.Type: ApplicationFiled: June 7, 2018Publication date: June 18, 2020Inventors: Siamend Flo, Oliver Albrecht, Frank Nitsche, Andreas Plisch, Dietmar Uhlenbrock, Olaf Schoenrock, Jurij Giesler, Ekrem Cakir
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Patent number: 10184437Abstract: A fuel injection system has a fuel distributor and multiple fuel injection valves each disposed on a cup of the fuel distributor. At least one injection valve is mounted on the associated cup by way of at least one holding element. An abutment surface is provided on the outer side of the cup. A support surface is configured on the underside of the cup. The holding element is moreover configured as a holding clamp. An abutment surface is provided on an outer side of the fuel injection valve. The holding clamp engages on the one hand behind the abutment surface of the cup and on the other hand behind the abutment surface of the fuel injection valve. The holding clamp furthermore pushes the fuel injection valve toward the support surface.Type: GrantFiled: April 2, 2013Date of Patent: January 22, 2019Assignee: ROBERT BOSCH GMBHInventors: Jens Pohlmann, Michael Fischer, Matthias Maess, Goekhan Guengoer, Martin Riemer, Markus Friedrich, Andreas Rehwald, Michael Mayer, Dietmar Uhlenbrock, Venkatesh Kannan
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Patent number: 9810189Abstract: A fuel distributor, which is used, in particular, for fuel injection systems of mixture-compressing, internal combustion engines having externally supplied ignition, includes a distributor pipe, a first holder and at least one second holder. The distributor pipe has a longitudinal axis. In this connection, the first holder and the second holder are situated at the distributor pipe so as to be axially set apart from one another with respect to the longitudinal axis. The distributor pipe is designed to allow axial length compensation. It is also possible for at least one holder to be designed to allow axial length compensation.Type: GrantFiled: September 11, 2012Date of Patent: November 7, 2017Assignee: ROBERT BOSCH GMBHInventors: Martin Maier, Martin Goehner, Markus Feigl, Helmut Schneider, Nikolaus Hautmann, Dietmar Uhlenbrock, Holger Uhrig
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Patent number: 9541047Abstract: A system, which is used in particular as a fuel injection system for the high-pressure injection in internal combustion engines, includes a fuel distributor and a plurality of fuel injectors. Each fuel injector is situated on a cup of the fuel distributor. At least one of the fuel injectors is fastened to the associated cup by a holding element, which has a supporting surface. The cup has a contact surface on an underside, by way of which the cup is supported at the supporting surface of the holding element by a damping layer. The holding element is attached to the cup. In addition, the fuel injector has a collar, which is braced on the holding element. Because of the damping layer, vibrations are able to be dampened, and the noise transmissions is able to be reduced.Type: GrantFiled: April 2, 2013Date of Patent: January 10, 2017Assignee: Robert Bosch GmbHInventors: Jens Pohlmann, Michael Fischer, Martin Riemer, Markus Friedrich, Andreas Rehwald, Michael Mayer, Dietmar Uhlenbrock, Matthias Maess, Goekhan Guengoer, Venkatesh Kannan
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Publication number: 20150136084Abstract: A fuel distributor, which is used in particular for fuel injection systems of mixture-compressing spark ignition internal combustion engines, includes a tubular base body, a first holder and a second holder. The first holder is connected here to the tubular base body at a first fastening point of the tubular base body. The second holder is also connected to the tubular base body at a second fastening point of the tubular base body. The tubular base body has at least one bend at least between the first fastening point and the second fastening point. A base body having a meandering pattern may be implemented in this way, enabling adjustment of thermal changes in the length of a cylinder head on which the fuel distributor is mounted.Type: ApplicationFiled: October 4, 2012Publication date: May 21, 2015Inventors: Martin Maier, Martin Goehner, Markus Feigl, Helmut Schneider, Nikolaus Hautmann, Dietmar Uhlenbrock, Holger Uhrig
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Publication number: 20150136086Abstract: A system, which is used in particular as a fuel injection system for the high-pressure injection in internal combustion engines, includes a fuel distributor and a plurality of fuel injectors. Each fuel injector is situated on a cup of the fuel distributor. At least one of the fuel injectors is fastened to the associated cup by a holding element, which has a supporting surface. The cup has a contact surface on an underside, by way of which the cup is supported at the supporting surface of the holding element by a damping layer. The holding element is attached to the cup. In addition, the fuel injector has a collar, which is braced on the holding element. Because of the damping layer, vibrations are able to be dampened, and the noise transmissions is able to be reduced.Type: ApplicationFiled: April 2, 2013Publication date: May 21, 2015Inventors: Jens Pohlman, Michael Fischer, Martin Riemer, Markus Ffriedrich, Andreas Rehwald, Michael Maya, Dietmar Uhlenbrock, Matthias Maess, Goekhan Guengoer, Venkatesh Kannan
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Publication number: 20150083082Abstract: A fuel injection system has a fuel distributor and multiple fuel injection valves each disposed on a cup of the fuel distributor. At least one injection valve is mounted on the associated cup by way of at least one holding element. An abutment surface is provided on the outer side of the cup. A support surface is configured on the underside of the cup. The holding element is moreover configured as a holding clamp. An abutment surface is provided on an outer side of the fuel injection valve. The holding clamp engages on the one hand behind the abutment surface of the cup and on the other hand behind the abutment surface of the fuel injection valve. The holding clamp furthermore pushes the fuel injection valve toward the support surface.Type: ApplicationFiled: April 2, 2013Publication date: March 26, 2015Inventors: Jens Pohlmann, Michael Fischer, Matthias Maess, Goekhan Guengoer, Martin Riemer, Markus Friedrich, Andreas Rehwald, Michael Mayer, Dietmar Uhlenbrock, Venkatesh Kannan
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Publication number: 20140123945Abstract: A fuel distributor which is used particularly for fuel injection systems of mixture-compressing, spark ignition internal combustion engines, includes a first half shell and a second half shell. A fuel chamber is embodied between the half shells. A plurality of cups is embodied on the first half shell and/or on the second half shell. The first half shell and the second half shell are connected to each other in a continuous material manner. Such a fuel distributor is especially suitable for medium pressure, particularly between 5 MPa and 7 MPa.Type: ApplicationFiled: March 16, 2012Publication date: May 8, 2014Applicant: ROBERT BOSCH GMBHInventors: Martin Maier, Martin Goehner, Markus Feigl, Dietmar Uhlenbrock, Nikolaus Hautmann, Holger Uhrig, Helmut Schneider
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Publication number: 20140028297Abstract: A method for producing an encoder element having a base body and a magnetic plastics element includes providing the base body and mixing a plastics base material with a magnetic or magnetizable filler to form an injection-molding material. The method also includes spraying the injection-molding material onto the base body so that a material-bonding, direct connection is produced between the base body and the sprayed-on plastics element. The method also includes magnetizing the sprayed-on plastics element.Type: ApplicationFiled: July 12, 2013Publication date: January 30, 2014Inventors: Martin Maier, Helmut Schneider, Nikolaus Hautmann, Dietmar Uhlenbrock, Ralf Diekmann
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Publication number: 20130068198Abstract: A fuel distributor, which is used, in particular, for fuel injection systems of mixture-compressing, internal combustion engines having externally supplied ignition, includes a distributor pipe, a first holder and at least one second holder. The distributor pipe has a longitudinal axis. In this connection, the first holder and the second holder are situated at the distributor pipe so as to be axially set apart from one another with respect to the longitudinal axis. The distributor pipe is designed to allow axial length compensation. It is also possible for at least one holder to be designed to allow axial length compensation.Type: ApplicationFiled: September 11, 2012Publication date: March 21, 2013Inventors: Martin MAIER, Martin Goehner, Markus Feigl, Helmut Schneider, Nikolaus Hautmann, Dietmar Uhlenbrock, Holger Uhrig
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Patent number: 7011690Abstract: Known devices for separating liquids using parallel-connected cyclones, when gas flows are fluctuating, have a poor separating action. In the device of the invention, the separating action is conversely improved by providing that the number of separator elements through which the gas flow flows is adapted in each case to the gas flow. When the gas flow is high, there is a flow through more separator elements than when the gas flow is low. In this way, the separator elements are operated closer to the optimal operating point than in the prior art. According to the invention, it is proposed that a closing body (11) of a distributor valve (13) be disposed movably in a distributor conduit (10) and either automatically or by means of a drive mechanism adjusts the optimal number of separator elements (16) through which there is a flow.Type: GrantFiled: May 8, 2003Date of Patent: March 14, 2006Assignee: Robert Bosch GmbHInventors: Bernd Altvater, Dietmar Uhlenbrock
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Publication number: 20050224061Abstract: The invention relates to an oil separating device for separating out oil droplets conveyed in a crankcase gas flow released by a crankcase ventilation of an internal combustion engine, including at least one separating element, at least part of which the gas flow passes through. The invention provides that the separating element (6) contains a granulate (22) comprised of a plastic. This measure achieves a high separation rate of smaller oil droplets.Type: ApplicationFiled: August 8, 2002Publication date: October 13, 2005Inventors: Markus Ulrich, Dietmar Uhlenbrock