Patents by Inventor Thomas Kuegler
Thomas Kuegler 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: 20240066521Abstract: Methods, apparatus, systems, and articles of manufacture to make and/or process a diagnostic test device are disclosed. An example apparatus includes a first portion including an opening; a second portion coupled to the first portion and house a lateral flow assay strip, the second portion including a first clip; and a push button located within the opening of the first portion, the push button moveable from a first position to a second position, the push button including a second clip to engage the first clip of the second portion to maintain the push button in the second position when moved into the second position.Type: ApplicationFiled: August 25, 2023Publication date: February 29, 2024Inventors: Thomas Uhlig, Thomas Ullrich, Stefan Kügler
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Publication number: 20110133002Abstract: The invention relates to an injection valve member for a fuel injector, which injection valve member is of multi-part design and which has different functional regions. To reduce the production costs for a fuel injector having an injection valve member, the injection valve member includes two guide bodies which are fastened to a separate connecting rod.Type: ApplicationFiled: June 30, 2009Publication date: June 9, 2011Inventors: Thomas Kuegler, Markus Krasemann, Horst Opielka, Wilhelm Christ, Predrag Nunic, Thilo Kreher, Friedrich Moser, Guenther Kubalik, Herbert Hoelzl, Andreas Koeninger, Kerstin Kling
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Patent number: 7331537Abstract: A fuel injection valve for internal combustion engines, having a valve body (1) in which a bore (3) is embodied that is defined on its end toward the combustion chamber by a valve seat (18) at which at least one injection opening (20) originates. The hollow valve needle (8) is located longitudinally displaceably in the bore (3) and has a valve sealing face (35) on its end oriented toward the valve seat (18). A first sealing region (31; 34) and a second sealing region (32; 46; 48) are embodied on the valve sealing face (35), and upon contact of the hollow valve needle (8) with the valve seat (18), the first sealing region (31; 34) upstream of the at least one injection opening (20) and the second sealing region (32; 46; 48) downstream of that injection opening effect sealing between the valve sealing face (35) and the valve seat (18) (FIG. 1).Type: GrantFiled: October 27, 2003Date of Patent: February 19, 2008Assignee: Robert Bosch GmbHInventors: Thomas Kuegler, Jochen Mertens, Hasiman Ueskuedar
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Patent number: 7258283Abstract: A fuel injector with a direct needle control for an internal combustion engine, having an actuator, a hydraulic booster, and a nozzle needle guided in a nozzle body and acting on a nozzle needle sealing seat. The hydraulic booster includes a booster piston connected to the actuator and a nozzle needle booster piston connected to the nozzle needle; a booster chamber in the form of an actuator coupler chamber is associated with a pressure surface of the actuator booster piston; and depending on the pressure in the actuator coupler chamber, the nozzle needle is lifted away from the nozzle needle sealing seat, thus initiating an injection. In addition to the actuator booster piston, a control element is provided that is able to execute a stroke motion, is hydraulically coupled to the actuator coupler chamber by means of a first control surface, and is associated with a control chamber by means of a second control surface.Type: GrantFiled: February 21, 2006Date of Patent: August 21, 2007Assignee: Robert Bosch GmbHInventors: Rudolf Heinz, Stefan Schuerg, Wolfgang Stoecklein, Michael Mennicken, Holger Rapp, Thomas Kuegler, Hans-Christoph Magel, Andreas Wengert, Thomas Pauer, Andreas Rau, Andreas Bartsch, Christian Kuhnert
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Publication number: 20070029410Abstract: A fuel injection valve for internal combustion engines, having an outer valve seat embodied in a valve body and has a conical shape with an outer opening angle, from which at least one outer injection opening leads. A likewise conical inner valve seat is also provided, which has an inner opening angle, from which at least one inner injection opening leads. The valve body contains a hollow valve needle that has an outer valve sealing surface with which it cooperates with the outer valve seat, thus controlling the opening of the at least one outer injection opening. The hollow valve needle contains a valve needle that has an inner valve sealing surface with which it cooperates with the inner valve seat to control the at least one inner injection opening; the opening angles of the inner valve seat and outer valve seat are different from each other.Type: ApplicationFiled: July 22, 2004Publication date: February 8, 2007Inventors: Thomas Kuegler, Hasiman Üsküdar
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Patent number: 7143964Abstract: A fuel injection valve for internal combustion engines includes a valve body (1) in which a bore (5) is defined in one end, in which a first row of injection openings (20) and a second row of injection openings (22) are formed. In the bore (5), an outer valve needle (8) cooperates with the valve seat (18) for controlling the first row of injection openings (20); between the outer valve needle (8) and the wall of the bore (5), a pressure chamber (14) is formed. In the outer valve needle (8), an inner bore (11) is formed, in which an inner valve needle (10) is located and which cooperates with the valve seat (18) for controlling the second row of injection openings (22). A pressure shoulder (30) is formed on the inner valve needle. A hydraulic opening force is exerted on the inner valve needle (10); by its opening stroke, the outer valve needle (8) opens a throttle connection (32) from the pressure chamber (14) to the pressure shoulder (30) of the inner valve needle (10).Type: GrantFiled: October 31, 2003Date of Patent: December 5, 2006Assignee: Robert Bosch GmbHInventor: Thomas Kuegler
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Publication number: 20060196973Abstract: A fuel injection valve, having a valve body that contains a bore whose combustion chamber end is delimited by a valve seat from which at least two injection openings lead. The bore contains outer and inner concentric valve needles whose ends oriented toward the combustion chamber each open and close the injection openings. A pressure chamber between the outer valve needle and the valve body bore can be filled with fuel. The inner valve needle is guided in a longitudinal bore of the outer needle by first and second sections between which an annular chamber is formed, which is delimited by the inner valve needle and the wall of the longitudinal bore. A throttle connection is capable of connecting the annular chamber to the pressure chamber and the diameter of the first guide section is greater than the diameter of the second guide section.Type: ApplicationFiled: October 6, 2003Publication date: September 7, 2006Inventors: Thomas Kuegler, Jochen Mertens, Hasiman Uskudar
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Publication number: 20060186221Abstract: A fuel injector with a direct needle control for an internal combustion engine, having an actuator, a hydraulic booster, and a nozzle needle guided in a nozzle body and acting on a nozzle needle sealing seat. The hydraulic booster includes a booster piston connected to the actuator and a nozzle needle booster piston connected to the nozzle needle; a booster chamber in the form of an actuator coupler chamber is associated with a pressure surface of the actuator booster piston; and depending on the pressure in the actuator coupler chamber, the nozzle needle is lifted away from the nozzle needle sealing seat, thus initiating an injection. In addition to the actuator booster piston, a control element is provided that is able to execute a stroke motion, is hydraulically coupled to the actuator coupler chamber by means of a first control surface, and is associated with a control chamber by means of a second control surface.Type: ApplicationFiled: February 21, 2006Publication date: August 24, 2006Inventors: Rudolf Heinz, Stefan Schuerg, Wolfgang Stoecklein, Michael Mennicken, Holger Rapp, Thomas Kuegler, Hans-Christoph Magel, Andreas Wengert, Thomas Pauer, Andreas Rau, Andreas Bartsch, Christian Kuhnert
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Publication number: 20060118660Abstract: A fuel injection valve for internal combustion engines, having a valve body (1) in which a bore (5) is embodied that is defined in its end toward the combustion chamber by a valve seat (18), in which a first row of injection openings (20) and a second row of injection openings (22) are embodied. In the bore (5), an outer valve needle (8) is located longitudinally displaceably and cooperates with the valve seat (18) for controlling the first row of injection openings (20); between the outer valve needle (8) and the wall of the bore (5), a pressure chamber (14) is embodied that can be filled with fuel at high pressure. In the outer valve needle (8), an inner bore (11) is embodied, in which an inner valve needle (10) is longitudinally displaceably located and which cooperates with the valve seat (18) for controlling the second row of injection openings (22).Type: ApplicationFiled: October 31, 2003Publication date: June 8, 2006Inventor: Thomas Kuegler
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Patent number: 7051958Abstract: A fuel injection valve for internal combustion engines, having a housing in which an outer valve needle and an inner valve needle guided in it are disposed in a bore. The outer valve needle controls an outer row of injection openings, and the inner valve needle controls an inner row of injection openings, to which rows of injection openings fuel is delivered at an injection pressure through a high-pressure conduit embodied in the housing. A control pressure chamber in the housing can be made to communicate with the high-pressure conduit, and by means of its pressure, a closing force is exerted at least indirectly on the inner valve needle. The high-pressure conduit communicates with a control chamber, by whose pressure a closing force is exerted at least indirectly on the outer valve needle, and the control chamber communicates with the control pressure chamber. A control valve is disposed in a housing, and by means of the control valve, the control chamber can be made to communicate with a leak fuel chamber.Type: GrantFiled: January 27, 2003Date of Patent: May 30, 2006Assignee: Robert Bosch GmbHInventors: Maike Sander-Potz, legal representative, Wendelin Potz, legal representative, Peter Boehland, Thomas Kuegler, Andreas Koeninger, Predrag Nunic, Detlev Potz, deceased
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Patent number: 7044406Abstract: Disclosed is a fuel injection valve for internal combustion engines having a valve body in which a hollow valve needle is disposed longitudinally displaceably in a bore. The hollow valve needle, on its end toward the combustion chamber, has a conical valve sealing face, which cooperates with a conical valve seat disposed on the end of the bore toward the combustion chamber. A longitudinal bore is embodied in the hollow valve needle, and a valve needle is disposed in it and, with a valve contact face embodied on its end toward the combustion chamber, likewise cooperates with the valve seat. The tip of the hollow valve needle toward the combustion chamber is formed by a chamfer.Type: GrantFiled: March 26, 2003Date of Patent: May 16, 2006Assignee: Robert Bosch GmbHInventors: Maike Sander-Potz, legal representative, Thomas Kuegler, Predrag Nunic, Detlev Potz, deceased
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Patent number: 7021567Abstract: A fuel injection valve for internal combustion engines, having a housing with a bore inside it that contains a longitudinally sliding outer valve needle which in turn contains a longitudinally sliding inner valve needle and the end of each valve needle oriented toward the combustion chamber controls at least one injection opening. The pressure in a control pressure chamber at least indirectly exerts a closing force on the outer valve needle and the pressure in a control pressure chamber at least indirectly exerts a closing force on the inner valve needle. The housing contains a control valve that has a valve chamber and a valve element contained in it, wherein the valve chamber has a connection to the leakage oil chamber a continuously open connection to the control chamber and a connection to the control pressure chamber.Type: GrantFiled: March 25, 2003Date of Patent: April 4, 2006Assignee: Robert Bosch GmbHInventors: Maike Sander-Potz, legal representative, Wendelin Potz, legal representative, Thomas Kuegler, Andreas Koeninger, Predrag Nunic, Detlev Potz, deceased
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Publication number: 20060060673Abstract: An injection nozzle for internal combustion engines is proposed, having a nozzle needle 7 and a second nozzle needle 27; the first nozzle needle 7 and the second nozzle needle 27 can be triggered independently of one another. The second injection nozzle is opened by lowering the pressure of a hydraulic fluid in a control chamber 37. By this means, the injection quantity per unit of time and the atomization of the fuel in the combustion chamber can be varied over wide ranges, and moreover a shaping of the injection course can be performed.Type: ApplicationFiled: September 1, 2005Publication date: March 23, 2006Inventors: Gerhard Mack, Thomas Kuegler
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Publication number: 20060011749Abstract: A fuel injection valve for internal combustion engines, having a valve body (1) in which a bore (3) is embodied that is defined on its end toward the combustion chamber by a valve seat (18) at which at least one injection opening (20) originates. The hollow valve needle (8) is located longitudinally displaceably in the bore (3) and has a valve sealing face (35) on its end oriented toward the valve seat (18). A first sealing region (31; 34) and a second sealing region (32; 46; 48) are embodied on the valve sealing face (35), and upon contact of the hollow valve needle (8) with the valve seat (18), the first sealing region (31; 34) upstream of the at least one injection opening (20) and the second sealing region (32; 46; 48) downstream of that injection opening effect sealing between the valve sealing face (35) and the valve seat (18) (FIG. 1).Type: ApplicationFiled: October 27, 2003Publication date: January 19, 2006Inventors: Thomas Kuegler, Jochen Mertens, Hasiman Ueskuedar
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Publication number: 20050224598Abstract: A fuel injection valve for internal combustion engines, having a housing with a bore inside it that contains a longitudinally sliding outer valve needle which in turn contains a longitudinally sliding inner valve needle and the end of each valve needle oriented toward the combustion chamber controls at least one injection opening. The pressure in a control pressure chamber at least indirectly exerts a closing force on the outer valve needle and the pressure in a control pressure chamber at least indirectly exerts a closing force on the inner valve needle. The housing contains a control valve that has a valve chamber and a valve element contained in it, wherein the valve chamber has a connection to the leakage oil chamber, a continuously open connection to the control chamber and a connection to the control pressure chamber.Type: ApplicationFiled: March 25, 2003Publication date: October 13, 2005Inventors: Detlev Potz, Maike Sander-Potz, Wendelin Potz, Thomas Kuegler, Andreas Koeninger, Predrag Nunic
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Patent number: 6925988Abstract: A fuel injection system for internal combustion engines, having a high-pressure accumulation chamber, which contains high-pressure fuel, and at least one fuel injection valve, which is connected to the high-pressure accumulation chamber. The fuel injection valve can inject the highly pressurized fuel through injection openings into a combustion chamber of the engine. The fuel injection valve has a control chamber, which is defined by a longitudinally mobile piston and is operationally connected to the fuel injection valve so that the injection cross section of the fuel injection valve is controlled as a function of the hydraulic pressure in the control chamber. A low-pressure accumulation chamber is provided, which can be connected to the control chamber, in which a predetermined fuel pressure is maintained in the low-pressure accumulation chamber that is lower than the pressure in the high-pressure accumulation chamber.Type: GrantFiled: November 17, 2001Date of Patent: August 9, 2005Assignee: Robert Bosch GmbHInventors: Detlev Potz, Thomas Kuegler
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Publication number: 20050139698Abstract: Disclosed is a fuel injection valve for internal combustion engines, having a valve body in which a hollow valve needle is disposed longitudinally displaceably in a bore. The hollow valve needle, on its end toward the combustion chamber, has a conical valve sealing face, which cooperates with a conical valve seat disposed on the end of the bore toward the combustion chamber. A longitudinal bore is embodied in the hollow valve needle, and a valve needle is disposed in it and, with a valve contact face embodied on its end toward the combustion chamber, likewise cooperates with the valve seat. The tip of the hollow valve needle toward the combustion chamber is formed by a chamfer.Type: ApplicationFiled: March 26, 2003Publication date: June 30, 2005Inventors: Detlev Potz, Thomas Kuegler, Predrag Nunic
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Patent number: 6901915Abstract: The fuel injection system has one high-pressure fuel pump and one fuel injection valve for each cylinder of the engine. The fuel injection valve has a first hollow injection valve member and a second valve member guided displaceably, inside the first valve member for controlling first and second opening(s), respectively into the associated engine cylinder. The second valve member is movable by the pressure prevailing in a pressure chamber in an opening direction counter to a closing force and is acted upon at least indirectly by the pressure prevailing in a fuel-filled control chamber, which pressure is controllable as a function of operating parameters of the engine such that the second injection valve member, by means of the pressure prevailing in the control chamber, can be blocked, independently of an opening motion of the first injection valve member in a position that closes the at least one second injection opening.Type: GrantFiled: August 23, 2002Date of Patent: June 7, 2005Assignee: Robert Bosch GmbHInventors: Joachim Winter, Maike Sander-Potz, Gerhard Mack, Christoph Buehler, Friedrich Moser, Thomas Kuegler, Philippe Allio, Peter Boehland, Detlev Potz
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Patent number: 6896208Abstract: For each cylinder of the internal combustion engine, the fuel injection system has one high-pressure fuel pump with a pump work chamber and one fuel injection valve communicating with the pump work chamber. A control valve actuated by means of a piezoelectric actuator control connection of the pump work chamber with a relief region. The fuel injection valve has a first injection valve member, by which at least one first injection opening is controlled and which is movable by the pressure generated in the pump work chamber in an opening direction, counter to a closing force.Type: GrantFiled: November 11, 2002Date of Patent: May 24, 2005Assignee: Robert Bosch GmbHInventor: Thomas Kuegler
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Patent number: 6889658Abstract: The fuel injection system has one high-pressure fuel pump (10) with a pump work chamber (22) and one fuel injection valve (12), communicating with the pump work chamber, for each cylinder of the engine. The fuel injection valve (12) has a first injection valve member (28), by which at least a first injection opening (32) is controlled, and which is movable in an opening direction (29) counter to a closing force by the pressure generated in the pump work chamber (22).Type: GrantFiled: August 23, 2002Date of Patent: May 10, 2005Assignee: Robert Bosch GmbHInventors: Joachim Winter, Wendelin Potz, Maike Sander-Potz, Gerhard Mack, Christoph Buehler, Friedrich Moser, Thomas Kuegler, Philippe Allio, Peter Boehland, Detlev Potz