Patents by Inventor Juergen Graner
Juergen Graner 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: 10865727Abstract: A method for controlling at least one switchable valve, a brake impulse that slows down the valve movement being produced during the controlling of the at least one valve. At least one parameter of the brake impulse determines the position and/or the duration of the brake impulse. A parameter is modified, and the reaction of a measurement quantity or of a characteristic feature derived from the measurement quantity is evaluated.Type: GrantFiled: September 24, 2015Date of Patent: December 15, 2020Assignee: Robert Bosch GmbHInventors: Stephan Jahn, Juergen Graner, Haris Hamedovic, Christian Steinbrecher, Bastian Reineke, Wolfgang Fischer, Andreas Rupp
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Patent number: 10002698Abstract: A magnetic actuator, which is used particularly for devices of internal combustion engines, includes a magnetic coil and at least one ferromagnetic component. In this instance, a magnetic flux caused by the magnetic coil is able to be guided via the component. On ferromagnetic component, a magnetic choke point is provided, which is used to adjust the magnetic flux. The magnetic choke point may be formed by a local microstructural modification of a ferromagnetic material of the ferromagnetic component. Furthermore, a valve having such a magnetic actuator and a method for producing such a magnetic actuator are indicated.Type: GrantFiled: May 18, 2015Date of Patent: June 19, 2018Assignee: ROBERT BOSCH GMBHInventors: Axel Bormann, Thorsten Bauer, Juergen Graner
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Patent number: 9885101Abstract: A method is described for manufacturing a solenoid valve, in particular a fuel injector, the solenoid valve having a valve needle which is movably guided in the axial direction, a magnet core and an armature which is situated axially diametrically opposed to the magnet core, the armature being situated on the valve needle, the armature having a first base material and a first reinforcing element and the magnet core having a second base material and a second reinforcing element. The method has one method step. The first reinforcing element is applied to the first base material and/or the second reinforcing element is applied to the second base material during the method step with the aid of molten bath spraying or with the aid of cold gas spraying.Type: GrantFiled: July 6, 2016Date of Patent: February 6, 2018Assignee: ROBERT BOSCH GMBHInventors: Juergen Graner, Martin Maier, Anselm Berg
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Publication number: 20170306879Abstract: A method for controlling at least one switchable valve, a brake impulse that slows down the valve movement being produced during the controlling of the at least one valve. At least one parameter of the brake impulse determines the position and/or the duration of the brake impulse. A parameter is modified, and the reaction of a measurement quantity or of a characteristic feature derived from the measurement quantity is evaluated.Type: ApplicationFiled: September 24, 2015Publication date: October 26, 2017Applicant: Robert Bosch GmbHInventors: Stephan Jahn, Juergen Graner, Haris Hamedovic, Christian Steinbrecher, Bastian Reineke, Wolfgang Fischer, Andreas Rupp
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Patent number: 9651163Abstract: A single-piece component for a magnetic actuator, in particular for fuel injection, including an internal pole, a magnetic sleeve, and a non-magnetic separating sleeve, the internal pole, the magnetic sleeve and the separating sleeve being integrated into the single-piece component. A method for manufacturing a single-piece component for an magnetic actuator with the aid of a two-component powder injection molding method.Type: GrantFiled: May 8, 2012Date of Patent: May 16, 2017Assignee: ROBERT BOSCH GMBHInventors: Rainer Walter, Johannes Schmid, Juergen Graner, Matthias Schumacher, Andreas Burghardt, Ralph Engelberg, Jochen Rager
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Patent number: 9546630Abstract: An injection valve for injecting fuel into a combustion chamber includes: a housing having at least one spray discharge orifice on a discharge side; a solenoid coil; a magnet armature linearly movable by the solenoid coil; a valve needle for opening and closing the spray discharge orifice, which valve needle projects through the magnet armature and is linearly movable along a longitudinal axis, the magnet armature being linearly movable in relation to the valve needle between a first stop and a second stop, the second stop being formed by a stop element having a stop face and a counter element having a counter face situated opposite the stop face, the stop element having an elastic design so that an angle between the longitudinal axis and the stop face is changed when the counter face strikes the stop face.Type: GrantFiled: July 26, 2013Date of Patent: January 17, 2017Assignee: ROBERT BOSCH GMBHInventors: Walter Maeurer, Anselm Berg, Friedrich Moser, Philipp Rogler, Juergen Graner, Olaf Schoenrock
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Publication number: 20160312350Abstract: A method is described for manufacturing a solenoid valve, in particular a fuel injector, the solenoid valve having a valve needle which is movably guided in the axial direction, a magnet core and an armature which is situated axially diametrically opposed to the magnet core, the armature being situated on the valve needle, the armature having a first base material and a first reinforcing element and the magnet core having a second base material and a second reinforcing element. The method has one method step. The first reinforcing element is applied to the first base material and/or the second reinforcing element is applied to the second base material during the method step with the aid of molten bath spraying or with the aid of cold gas spraying.Type: ApplicationFiled: July 6, 2016Publication date: October 27, 2016Inventors: Juergen Graner, Martin MAIER, Anselm BERG
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Patent number: 9429245Abstract: A method is described for manufacturing a solenoid valve, in particular a fuel injector, the solenoid valve having a valve needle which is movably guided in the axial direction, a magnet core and an armature which is situated axially diametrically opposed to the magnet core, the armature being situated on the valve needle, the armature having a first base material and a first reinforcing element and the magnet core having a second base material and a second reinforcing element. The method has one method step. The first reinforcing element is applied to the first base material and/or the second reinforcing element is applied to the second base material during the method step with the aid of molten bath spraying or with the aid of cold gas spraying.Type: GrantFiled: March 26, 2013Date of Patent: August 30, 2016Assignee: ROBERT BOSCH GMBHInventors: Juergen Graner, Martin Maier, Anselm Berg
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Patent number: 9394867Abstract: A fuel injection valve for injecting fuel includes: a coil, an internal pole, a valve sleeve, and a magnetic separating element, where the valve sleeve and the magnetic separating element are embodied in one piece as a powder injection-molded component, and the valve sleeve forms a magnetic region and the magnetic separating element forms a non-magnetic region, which are intermaterially joined to one another.Type: GrantFiled: June 6, 2012Date of Patent: July 19, 2016Assignee: Robert Bosch GmbHInventors: Johannes Schmid, Juergen Graner, Tilla Haubold, Friedrich Moser, Matthias Schumacher, Andreas Burghardt, Jochen Rager
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Patent number: 9224528Abstract: An electrically actuatable valve for injecting fuel includes a magnetic actuator having multiple components, at least one component of the magnetic actuator having multiple sectors made of soft magnetic material and multiple insulating separating webs. A separating web is situated between each two neighboring sectors and entirely separates the neighboring sectors from one another electrically.Type: GrantFiled: October 7, 2010Date of Patent: December 29, 2015Assignee: ROBERT BOSCH GMBHInventors: Jens Pohlmann, Juergen Graner
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Patent number: 9194347Abstract: An injector having a valve opening, a cylindrical pipe, a valve opening, a valve needle situated inside the pipe in the radial direction and guided to allow axial displacement; a solenoid coil situated outside the pipe in the radial direction; a solenoid core disposed inside the pipe in the radial direction; and a magnetic armature situated inside the pipe, opposite the solenoid core in the radial direction, the magnetic armature being disposed on the valve needle. The pipe is a magnetic first material in a first pipe region and a third pipe region, the first region facing the valve opening in the axial direction, and the third pipe region facing away from the valve opening in the axial direction. The pipe is a non-magnetic second material in a second pipe region, the second pipe region being between the first pipe region and the third pipe region in the axial direction.Type: GrantFiled: December 1, 2010Date of Patent: November 24, 2015Assignee: ROBERY BOSCH GMBHInventors: Juergen Graner, Martin Maier, Juergen Lander, Jochen Rager
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Publication number: 20150332833Abstract: A magnetic actuator, which is used particularly for devices of internal combustion engines, includes a magnetic coil and at least one ferromagnetic component. In this instance, a magnetic flux caused by the magnetic coil is able to be guided via the component. On ferromagnetic component, a magnetic choke point is provided, which is used to adjust the magnetic flux. The magnetic choke point may be formed by a local microstructural modification of a ferromagnetic material of the ferromagnetic component. Furthermore, a valve having such a magnetic actuator and a method for producing such a magnetic actuator are indicated.Type: ApplicationFiled: May 18, 2015Publication date: November 19, 2015Inventors: Axel BORMANN, Thorsten BAUER, Juergen GRANER
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Patent number: 9188094Abstract: A fuel injector for fuel-injection systems of internal combustion engines includes an electromagnetic actuating element having a solenoid coil, a fixed core, an outer magnetic circuit component, and a movable armature for actuating a valve-closure element, which cooperates with a valve-seat surface provided on a valve-seat element. The injector is characterized by its extremely small outer dimensions. The flexibility in the installation of fuel injectors of varying valve lengths, which is made possible very simply due to the special modular design, is significantly increased in this manner. An optimized dimensioning of the electromagnetic circuit allows for a DFR (dynamic flow range) greater than 17, the DFR being defined as the quotient of qmax/qmin.Type: GrantFiled: July 26, 2011Date of Patent: November 17, 2015Assignee: ROBERT BOSCH GMBHInventors: Juergen Graner, Martin Maier, Takuya Mizobe, Bernd Rieg, Volker Sohm, Juergen Lander
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Publication number: 20150247479Abstract: An injection valve for injecting fuel into a combustion chamber includes: a housing having at least one spray discharge orifice on a discharge side; a solenoid coil; a magnet armature linearly movable by the solenoid coil; a valve needle for opening and closing the spray discharge orifice, which valve needle projects through the magnet armature and is linearly movable along a longitudinal axis, the magnet armature being linearly movable in relation to the valve needle between a first stop and a second stop, the second stop being formed by a stop element having a stop face and a counter element having a counter face situated opposite the stop face, the stop element having an elastic design so that an angle between the longitudinal axis and the stop face is changed when the counter face strikes the stop face.Type: ApplicationFiled: July 26, 2013Publication date: September 3, 2015Inventors: Walter Maeurer, Anselm Berg, Friedrich Moser, Philipp Rogler, Juergen Graner, Olaf Schoenrock
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Patent number: 9068542Abstract: A fuel injector for fuel injection systems of internal combustion engines. The valve includes an electromagnetic actuating element which has a solenoid, a solid core, an external magnetic circuit component, and a movable armature for activating a valve closing member which cooperates with a valve seat surface provided on a valve seat member. The valve has extremely small outer dimensions. By optimizing the dimensions of the electromagnetic circuit, the outer diameter of the external magnetic circuit component in the peripheral area of the solenoid is 10.5 mm<DM<13.5 mm. This increases the flexibility in installing fuel injectors having different valve lengths, which are made possible due to the special modular design. The valve is suitable as a fuel injector in particular for use in fuel injection systems of mixture-compressing, spark ignition internal combustion engines.Type: GrantFiled: July 26, 2011Date of Patent: June 30, 2015Assignee: ROBERT BOSCH GMBHInventors: Juergen Graner, Martin Maier, Bernd Rieg, Volker Sohm, Juergen Lander, Takuya Mizobe
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Publication number: 20150136878Abstract: A device for injecting fuel includes an electrodynamic drive having a movably situated coil, an inwardly opening needle which opens and closes injection holes on a valve seat, a connecting element which connects the needle to the movably situated coil, and a pressure chamber which is situated at the needle upstream from the valve seat and contains pressurized fuel.Type: ApplicationFiled: December 15, 2014Publication date: May 21, 2015Inventors: Juergen GRANER, Martin MAIER, Guenther HOHL
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Publication number: 20140346383Abstract: A method for manufacturing a solenoid valve or a fuel injector, including a sleeve, a valve needle situated inside the sleeve in a radial direction and guided so as to slide, a solenoid coil situated outside of the sleeve in a radial direction, a magnetic core situated inside the sleeve in a radial direction, and a magnet armature situated inside the sleeve in a radial direction, axially opposite to the magnetic core; the magnet armature being situated on the valve needle, the sleeve having a low wall thickness in a thin-walled region situated between the magnet armature and the solenoid coil, the thin-walled region strengthened by a reinforcing element for absorbing radial forces; and a method step, during which, the reinforcing element is deposited onto the sleeve, in the thin-walled region, in a radial direction, outside of the sleeve, using a molten bath or cold gas spraying method.Type: ApplicationFiled: September 26, 2012Publication date: November 27, 2014Inventors: Juergen Graner, Martin Maier, Nikolaus Hautmann, Ralf Diekmann
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Publication number: 20140224902Abstract: A fuel injection valve for injecting fuel includes: a coil, an internal pole, a valve sleeve, and a magnetic separating element, where the valve sleeve and the magnetic separating element are embodied in one piece as a powder injection-molded component, and the valve sleeve forms a magnetic region and the magnetic separating element forms a non-magnetic region, which are intermaterially joined to one another.Type: ApplicationFiled: June 6, 2012Publication date: August 14, 2014Inventors: Johannes Schmid, Juergen Graner, Tilla Haubold, Friedrich Moser, Matthias Schumacher, Andreas Burghardt, Jochen Rager
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Publication number: 20140197340Abstract: A single-piece component for a magnetic actuator, in particular for fuel injection, including an internal pole, a magnetic sleeve, and a non-magnetic separating sleeve, the internal pole, the magnetic sleeve and the separating sleeve being integrated into the single-piece component. A method for manufacturing a single-piece component for an magnetic actuator with the aid of a two-component powder injection molding method.Type: ApplicationFiled: May 8, 2012Publication date: July 17, 2014Inventors: Rainer Walter, Johannes Schmid, Juergen Graner, Matthias Schumacher, Andreas Burghardt, Ralph Engelberg, Jochen Rager
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Publication number: 20140027545Abstract: A fuel injection valve for fuel injection systems of internal combustion engines. The valve includes an electromagnetic actuating element having a solenoid, a solid core, an outer magnetic circuit component, and a movable armature for actuating a valve closing element that works together with a valve seat surface provided on a valve seat element. The valve has extremely small outer dimensions. Due to an optimized dimensioning of the electromagnetic circuit, the outer diameter of the outer magnetic circuit component in the circumferential area of the solenoid DM<=11 mm. This increases flexibility in the installation of fuel injection valves having various valve lengths, which are very easily enabled due to the particular modular construction. The valve is suitable as a fuel injection valve, particularly for use in fuel injection systems of mixture-compressing externally ignited internal combustion engines.Type: ApplicationFiled: July 26, 2011Publication date: January 30, 2014Inventors: Juergen Graner, Martin Maier, Bernd Rieg, Volker Sohm, Juergen Lander, Takuya Mizobe