Patents by Inventor Andreas Koeninger
Andreas Koeninger 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: 20240044410Abstract: The invention relates to a gas valve (1), comprising: a valve body (2) which is hollow-cylindrical at least in parts and which forms a sealing seat (3) over which a gas flow path (4) is conducted, a reciprocating valve closure element (5) which is accommodated at least partly in the valve body (2) and which has a plate-like end portion (6) arranged outside the valve body, (2) which end portion interacts with the sealing seat (3), a sleeve (7) which at least partially surrounds the valve body (2) and the valve closure element (5) and which, together with the plate-like end portion (6) of the valve closure element (5), delimits an annular gap (8) which forms a throttle point in the gas flow path (4) downstream of the sealing seat (3).Type: ApplicationFiled: January 31, 2022Publication date: February 8, 2024Inventors: Andreas Koeninger, Bernd Siewert, Gerhard Suenderhauf, Michael Marzinzik
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Patent number: 11873784Abstract: A gas metering valve for an internal combustion engine. The gas metering valve includes a housing in which a gas chamber is formed, which includes an inlet opening and an outlet opening. A movable valve element is situated in the gas chamber, which is movable by an electrical actuator against the force of a return spring and which cooperates with a valve seat for opening and closing the inlet opening. A blocking valve is situated between the valve element and the outlet opening, which opens in the flow direction to the outlet opening and blocks in the opposite flow direction.Type: GrantFiled: January 27, 2021Date of Patent: January 16, 2024Assignee: ROBERT BOSCH GMBHInventors: Andreas Kremer, Andreas Koeninger, Daniel Bosse, Fabian Fischer, Gerhard Suenderhauf, Lars Olems, Marco Beier, Matthias Horn, Oezguer Tuerker, Sebastian Laechele
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Publication number: 20230130775Abstract: The invention relates to a fuel injector (10) for internal combustion engines, comprising a nozzle body (12), in which there is formed a blind bore (14), from which at least one injection opening (22) starts, and comprising a nozzle needle (26; 26a to 26g) which is arranged so as to be movable longitudinally in the nozzle body (12), with a sealing face (28) formed on the side facing towards the blind bore (14), by means of which sealing face the nozzle needle (26; 26a to 26g) interacts with a seat face (17) of the nozzle body (12) in order to control a flow of fuel to the at least one injection opening (22), and comprising a needle tip (34), which has a first edge (41) miming radially around a longitudinal axis (15) and having a first diameter (D1), which first edge is adjoined in the direction of the base of the blind bore (20) by a second edge (42) miming radially around the longitudinal axis (15) and having a second diameter (D2).Type: ApplicationFiled: May 27, 2020Publication date: April 27, 2023Inventors: Andreas Koeninger, Fabian Wolf, Gerhard Suenderhauf, Knut Kristian Baadshaug
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Publication number: 20230053845Abstract: A gas metering valve for an internal combustion engine. The gas metering valve includes a housing in which a gas chamber is formed, which includes an inlet opening and an outlet opening. A movable valve element is situated in the gas chamber, which is movable by an electrical actuator against the force of a return spring and which cooperates with a valve seat for opening and closing the inlet opening. A blocking valve is situated between the valve element and the outlet opening, which opens in the flow direction to the outlet opening and blocks in the opposite flow direction.Type: ApplicationFiled: January 27, 2021Publication date: February 23, 2023Inventors: Andreas Kremer, Andreas Koeninger, Daniel Bosse, Fabian Fischer, Gerhard Suenderhauf, Lars Olems, Marco Beier, Matthias Horn, Oezguer Tuerker, Sebastian Laechele
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Patent number: 10018169Abstract: A nozzle assembly for a fuel injector includes a nozzle needle (1), which is accommodated in a high-pressure bore (2) of a nozzle body (3) in such a way that the nozzle needle can be moved in a reciprocating manner in order to open and close at least one injection opening (4) and to which a spring force of a spring (5) is applied at least indirectly in a closing direction. The nozzle needle (1) is at least partially surrounded by a throttle bore body (7) in order to form at least one closing throttle (6). The throttle bore body (7) has a multi-part design and comprises at least two sleeves (7.1, 7.2), which are at least partially guided in each other.Type: GrantFiled: April 13, 2015Date of Patent: July 10, 2018Assignee: Robert Bosch GmbHInventor: Andreas Koeninger
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Patent number: 9835124Abstract: The invention relates to a fuel injector for internal combustion engines for injecting fuel at high pressure, comprising a pressure chamber formed in an injector body, in which pressure chamber a nozzle needle is arranged in a longitudinally movable manner, which nozzle needle has a cone region tapered in a combustion chamber direction and a pin region having a constant diameter d23 at a combustion-chamber end of the nozzle needle. The injector body has a substantially conical nozzle needle seat, from which a first injection opening extends, and a blind hole, which adjoins the nozzle needle seat on the combustion chamber side. The blind hole has a cylindrical segment, which has the diameter d31, and a hole base, from which a second injection opening extends. The cone region of the nozzle needle interacts with the nozzle needle seat and thereby opens and closes the first injection opening and the second injection opening with respect to the pressure chamber.Type: GrantFiled: August 5, 2014Date of Patent: December 5, 2017Assignee: Robert Bosch GmbHInventors: Andreas Koeninger, Gerhard Suenderhauf
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Publication number: 20170184065Abstract: The invention relates to a nozzle assembly for a fuel injector, comprising a nozzle needle (1), which is accommodated in a high-pressure bore (2) of a nozzle body (3) in such a way that the nozzle needle can be moved in a reciprocating manner in order to open and close at least one injection opening (4) and to which a spring force of a spring (5) is applied at least indirectly in a closing direction, wherein the nozzle needle (1) is surrounded by a throttle bore body (7) at least in some regions in order to form at least one closing throttle (6). According to the invention, the throttle bore body (7) has a multi-part design and comprises at least two sleeves (7.1, 7.2), which are guided in each other at least in some regions. The invention further relates to a fuel injector comprising such a nozzle assembly.Type: ApplicationFiled: April 13, 2015Publication date: June 29, 2017Applicant: Robert Bosch GmbHInventor: Andreas Koeninger
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Publication number: 20160215745Abstract: The invention relates to a fuel injector for internal combustion engines for injecting fuel at high pressure, comprising a pressure chamber formed in an injector body, in which pressure chamber a nozzle needle is arranged in a longitudinally movable manner, which nozzle needle has a cone region tapered in a combustion chamber direction and a pin region having a constant diameter d23 at a combustion-chamber end of the nozzle needle. The injector body has a substantially conical nozzle needle seat, from which a first injection opening extends, and a blind hole, which adjoins the nozzle needle seat on the combustion chamber side. The blind hole has a cylindrical segment, which has the diameter d31, and a hole base, from which a second injection opening extends. The cone region of the nozzle needle interacts with the nozzle needle seat and thereby opens and closes the first injection opening and the second injection opening with respect to the pressure chamber.Type: ApplicationFiled: August 5, 2014Publication date: July 28, 2016Inventors: Andreas Koeninger, Gerhard Suenderhauf
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Publication number: 20110272495Abstract: The invention relates to a fuel injector (1), in particular a common rail injector, for injecting fuel into a combustion chamber (9) of an internal combustion engine (5), having a nozzle body (8) designed for protruding into the combustion chamber (9) and tightened to a retaining element by means of a nozzle clamping nut (3), and having a seal (6) for sealing off the combustion chamber (9) from a nozzle body area.Type: ApplicationFiled: November 19, 2009Publication date: November 10, 2011Applicant: Robert Bosch GmbHInventors: Predrag Nunic, Andreas Koeninger
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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: 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: 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: 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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Publication number: 20040129804Abstract: A fuel injection valve for internal combustion engines, having a housing (1) in which an outer valve needle (20) and an inner valve needle (22) guided in it are disposed in a bore (16). The outer valve needle (20), by a longitudinal motion, controls an outer row (130) of injection openings, and the inner valve needle (22), likewise by means of a longitudinal motion, controls an inner row (230) of injection openings, to which rows (130; 230) of injection openings fuel is delivered at an injection pressure through a high-pressure conduit (10) embodied in the housing (1). A control pressure chamber (52) is embodied in the housing (1); it can be made to communicate with the high-pressure conduit (10), and by means of its pressure, a closing force is exerted at least indirectly on the inner valve needle (22).Type: ApplicationFiled: October 14, 2003Publication date: July 8, 2004Inventors: Detlev Potz, Maike Sander-Potz, Wendelin Potz, Peter Boehland, Thomas Kuegler, Andreas Koeninger, Predrag Nunic