Patents by Inventor Markus Gesk
Markus Gesk 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).
-
Patent number: 9366207Abstract: A fuel injector for fuel-injection systems of internal combustion engines. The valve includes an electromagnetic actuating element having a solenoid coil, a fixed core, an outer magnetic-circuit component and a movable armature to actuate a valve-closure member which cooperates with a valve-seat surface provided on a valve-seat member. The valve is characterized by its extremely small outside dimensions. The entire axially movable valve needle, including armature and valve-closure member, has a mass of only m<=0.8 g. The valve is suitable as a fuel injector, especially for use in fuel-injection systems of mixture-compressing internal combustion engines with externally supplied ignition.Type: GrantFiled: July 26, 2011Date of Patent: June 14, 2016Assignee: ROBERT BOSCH GMBHInventors: Hirokazu Terashima, Markus Gesk, Friedrich Moser, Volker Sohm
-
Patent number: 8656591Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.Type: GrantFiled: August 25, 2011Date of Patent: February 25, 2014Assignee: Robert Bosch GmbHInventors: Manfred Roessler, Achim Degel, Rolf Keller, Markus Gesk, Guido Pilgram, Bernd Einwiller, Norbert Keim, Michael Lingner
-
Publication number: 20130256430Abstract: A fuel injector for fuel-injection systems of internal combustion engines. The valve includes an electromagnetic actuating element having a solenoid coil, a fixed core, an outer magnetic-circuit component and a movable armature to actuate a valve-closure member which cooperates with a valve-seat surface provided on a valve-seat member. The valve is characterized by its extremely small outside dimensions. The entire axially movable valve needle, including armature and valve-closure member, has a mass of only m<=0.8 g. The valve is suitable as a fuel injector, especially for use in fuel-injection systems of mixture-compressing internal combustion engines with externally supplied ignition.Type: ApplicationFiled: July 26, 2011Publication date: October 3, 2013Inventors: Hirokazu Terashima, Markus Gesk, Friedrich Moser, Volker Sohm
-
Publication number: 20110305823Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.Type: ApplicationFiled: August 25, 2011Publication date: December 15, 2011Inventors: Manfred ROESSLER, Achim DEGEL, Rolf KELLER, Markus GESK, Guido PILGRAM, Bernd EINWILLER, Norbert KEIM, Michael LINGNER
-
Patent number: 8020789Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.Type: GrantFiled: July 2, 2003Date of Patent: September 20, 2011Assignee: Robert Bosch GmbHInventors: Manfred Roessler, Achim Degel, Rolf Keller, Markus Gesk, Guido Pilgram, Bernd Einwiller, Norbert Keim, Michael Lingner
-
Publication number: 20090321541Abstract: The fuel injector is characterized in that a multi-fan jet nozzle is disposed downstream of a valve-seat member having a fixed valve seat. The multi-fan jet nozzle is disk shaped, having a middle, bulged, crest-like nozzle area that has an elliptical elongation. In the nozzle area of the multi-fan jet nozzle used as an atomizer device, a plurality of directionally parallel spray-discharge slots is provided, which, for example, are arranged in a row. The fuel injector is particularly suitable for use in fuel-injection systems of mixture-compressing internal combustion engines having externally supplied ignition.Type: ApplicationFiled: November 2, 2005Publication date: December 31, 2009Inventors: Volker Holzgrefe, Stefan Arndt, Christian Heinen, Markus Gesk, Armin Schuelke, Guenter Dantes, Joerg Heyse, Andreas Krause, Kai Gartung
-
Publication number: 20090206181Abstract: A fuel injector includes an orifice plate situated downstream from a valve-seat body having a fixed valve seat, the orifice plate having at least one outlet opening. Provided directly upstream from the outlet openings is an inflow opening having an annular inflow cavity. The valve-seat body covers the inflow cavity in such a way that the downstream outlet openings of the orifice plate are covered. The inflow cavity directly upstream from the at least one outlet opening is configured such that the flow approaches the at least one outlet opening largely at a right angle to the longitudinal extension of the outlet opening. With regard to the cross section, the at least one outlet openings has a polygonal form, in particular one that encloses at least one triangle, or it has a meander shape with a plurality of curves in the outer contour. The fuel injector may be particularly suitable for use in fuel injection systems of the mixture-compressing internal combustion engines having external ignition.Type: ApplicationFiled: February 14, 2006Publication date: August 20, 2009Inventors: Stefan Arndt, Markus Gesk, Guenter Dantes, Joerg Heyse, Andreas Krause, Kai Gartung
-
Publication number: 20090200402Abstract: The fuel injector including an orifice plate which is provided with a multitude of outlet openings and situated downstream from a valve-seat body having a fixed valve seat. Directly upstream from the outlet openings is an inflow opening having an annular inflow cavity. The valve-seat body covers the inflow cavity in such a way that the downstream outlet openings of the orifice plate are covered. The outlet openings each have an inflow region whose diameter D1 is considerably larger than the diameter D2 of a region that abuts at a sharp angle directly downstream therefrom, which forms the narrowest cross section of the outlet opening and from where the outlet opening widens in the flow direction to a diameter D3 in a trumpet-shaped manner. The fuel injector may be particularly suitable for use in fuel injection systems of mixture-compressing ignition engines having externally supplied ignition.Type: ApplicationFiled: September 20, 2005Publication date: August 13, 2009Inventors: Markus Gesk, Guenter Dantes, Joerg Heyse, Andreas Krause
-
Patent number: 7523740Abstract: A fuel-injection system for injection of fuel into an internal combustion engine includes at least one fuel injector and a first fuel-distributor line which is connected to the at least one fuel injector. A second fuel-distributor line is provided which is connected to the at least one fuel injector via an individual corresponding lance.Type: GrantFiled: August 18, 2004Date of Patent: April 28, 2009Assignee: Robert Bosch GmbHInventors: Guenter Hoenig, Markus Gesk, Andreas Glenz, Ralf Bruenemann, Eberhard Holder, Martin Matt, Hans-Karl Weining
-
Publication number: 20090032623Abstract: The fuel injector includes an orifice plate being situated downstream from a valve-seat body having a fixed valve seat, the orifice plate having at least one outlet opening. Provided directly upstream from the outlet openings is an inflow opening having an annular inflow cavity. The valve-seat body covers the inflow cavity in such a way that the downstream outlet openings of the orifice plate are covered. A boundary surface of the valve-seat body lying opposite the orifice plate is designed such that, beginning at an exit opening, the height of the inflow opening decreases continuously in a first section up to the at least one outlet opening, while the height of the inflow opening in a second, radially outer section remains largely constant. The fuel injector is particularly suitable for use in fuel injection systems of the mixture-compressing internal combustion engines having external ignition.Type: ApplicationFiled: September 20, 2005Publication date: February 5, 2009Inventors: Markus Gesk, Guenter Dantes, Joerg Heyse
-
Publication number: 20070169749Abstract: A fuel-injection system for injection of fuel into an internal combustion engine includes at least one fuel injector and a first fuel-distributor line which is connected to the at least one fuel injector. A second fuel-distributor line is provided which is connected to the at least one fuel injector via an individual corresponding lance.Type: ApplicationFiled: August 18, 2004Publication date: July 26, 2007Applicant: ROBERT BOSCH GMBHInventors: Guenter Hoenig, Markus Gesk, Andreas Glenz, Ralf Bruenemann, Eberhard Holder, Martin Matt, Hans-Karl Weining
-
Patent number: 7188789Abstract: An atomizer nozzle (1) for fuels, in particular for feeding them into a chemical reformer for obtaining hydrogen, has a nozzle body (2) containing spray-discharge orifices (3) that discharge into a metering space, and has at least one metering aperture (6). The spray-discharge orifices (3) are situated at elevation levels (4) so as to have a radial directional component with respect to a center line (10) of the nozzle body (2), each elevation step having at least one spray-discharge orifice (3), and the spray-discharge orifices (3) of at least one elevation level (4) being connected to at least one channel (14) of a nozzle-body insert (5) that has at least one flow-through opening (11).Type: GrantFiled: July 3, 2003Date of Patent: March 13, 2007Assignee: Robert Bosch GmbHInventors: Helmut Schwegler, Ian Faye, Markus Gesk, Frank Miller, Hartmut Albrodt, Franz Thoemmes
-
Publication number: 20070007366Abstract: The method for producing and securing an apertured disk for a fuel injector is distinguished by the use of the following method steps: a) making available a flat, metallic sheet having a constant thickness, b) reducing the thickness in one region of the sheet by impressing or embossing, c) introducing at least one spray-discharge opening in the region having reduced thickness, d) machining the sheet until an apertured disk having predefined outside dimensions is attained, and e) securing the apertured disk on a valve-seat member of the fuel injector in such a way that a lower end face of the valve-seat member overlaps an intake region of the apertured disk produced by the thickness reduction, such that the at least one spray-discharge opening is covered.Type: ApplicationFiled: February 4, 2004Publication date: January 11, 2007Inventors: Markus Gesk, Martin Maier
-
Publication number: 20060151639Abstract: A fuel injector for fuel injection systems of internal combustion engines includes a solenoid coil; an armature acted upon in a closing direction by a restoring spring; and a valve needle, which is connected to the armature in force-locking manner and on which a valve-closure member is formed, which forms a sealing seat together with a valve seat surface. The armature strikes against a stop face of an inner pole of the solenoid coil by way of a stop face, and the armature stop face is provided with a coating. The coating has a surface structure.Type: ApplicationFiled: July 2, 2003Publication date: July 13, 2006Inventors: Manfred Roessler, Achim Degel, Rolf Keller, Markus Gesk, Giudo Pilgram, Bernd Einwiller, Norbert Keim, Michael Lingner
-
Publication number: 20060144966Abstract: An atomizer nozzle for fuels, particularly for charging a chemical reformer for obtaining hydrogen, features a nozzle body, having spray-discharge orifices discharging into a metering space, and at least one metering aperture, The spray-discharge orifices are situated with a radial directional component with respect to a center axis of the nozzle body at elevation levels, each elevation level having at least one spray-discharge orifice. At least one nozzle body insert, having at least one flow-through opening, is situated in the nozzle body in front of the first elevation step in the direction of fuel flow and/or between the elevation steps.Type: ApplicationFiled: August 12, 2003Publication date: July 6, 2006Inventors: Helmut Schwegler, Ian Faye, Markus Gesk, Frank Miller, Hartmut Albrodt, Franz Thoemmes
-
Patent number: 6976642Abstract: A dual component injector, especially for internal combustion engines, has a nozzle body, which has a nozzle outlet, and a valve needle for opening and closing the nozzle outlet. A first feed channel is used for supplying a first fluid to the nozzle outlet, and a second feed channel is used for supplying a second fluid to the nozzle outlet. Optionally, a fluid chamber, which is located in the nozzle body, is connected to the nozzle outlet. The second feed channel is connected to the fluid chamber or to the first feed channel via at least two bored holes. The bored holes open out in the fluid chamber or in the first feed channel in such a way that the second fluid produces a swirling flow pattern in the fluid chamber or in the first feed channel.Type: GrantFiled: November 13, 2002Date of Patent: December 20, 2005Assignees: DaimlerChrysler AG, Robert Bosch GmbHInventors: Hartmut Albrodt, Ralf Bruenemann, Ulrich Fischer, Markus Gesk, Simon Godwin, Eberhard Holder, Roland Kemmler, Martin Matt, Ferdinand Reiter
-
Publication number: 20050258281Abstract: An atomizer nozzle for fuels, in particular for feeding them into a chemical reformer for obtaining hydrogen, has a nozzle body containing spray-discharge orifices that discharge into a metering space, and has at least one metering aperture. The spray-discharge orifices are situated at elevation levels so as to have a radial directional component with respect to a center line of the nozzle body, each elevation step having at least one spray-discharge orifice, and the spray-discharge orifices of at least one elevation level being connected to at least one channel of a nozzle-body insert that has at least one flow-through opening.Type: ApplicationFiled: July 3, 2003Publication date: November 24, 2005Inventors: Helmut Schwegler, Ian Faye, Markus Gesk, Frank Miller, Hartmut Albrodt, Franz Thoemmes
-
Publication number: 20030213858Abstract: A dual component injector, especially for internal combustion engines, has a nozzle body, which has a nozzle outlet, and a valve needle for opening and closing the nozzle outlet. A first feed channel is used for supplying a first fluid to the nozzle outlet, and a second feed channel is used for supplying a second fluid to the nozzle outlet. Optionally, a fluid chamber, which is located in the nozzle body, is connected to the nozzle outlet. The second feed channel is connected to the fluid chamber or to the first feed channel via at least two bored holes. The bored holes open out in the fluid chamber or in the first feed channel in such a way that the second fluid produces a swirling flow pattern in the fluid chamber or in the first feed channel.Type: ApplicationFiled: November 13, 2002Publication date: November 20, 2003Inventors: Hartmut Albrodt, Ralf Bruenemann, Ulrich Fischer, Markus Gesk, Simon Godwin, Eberhard Holder, Roland Kemmler, Martin Matt, Ferdinand Reiter
-
Patent number: 5996911Abstract: A fuel injection valve for use in fuel injection systems of compressed-mixture, externally ignited internal combustion engines has a core provided with a wear-resistant layer that has a greater layer thickness than a layer thickness of a wear-resistant layer of an armature facing the core. This greater layer thickness is present at least in an immediate contact area between the core and the armature.Type: GrantFiled: August 12, 1998Date of Patent: December 7, 1999Assignee: Robert Bosch GmbHInventors: Markus Gesk, Norbert Keim, Joachim Stilling