Patents by Inventor Gerhard Luz
Gerhard Luz 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: 11668263Abstract: Piston (1) of an internal combustion engine, which piston is designed in structured construction, comprising two oppositely arranged load-bearing skirt wall portions (2), wherein a connecting wall (3) respectively extends, starting from a pin boss (4), in the direction of the side edge of the load-bearing skirt wall portions (2), characterized in that in an interior of the piston (1) is (are) disposed at least one rib (5, 6, 7), preferably three ribs (5, 6, 7), and the material of the regions around the at least one rib (5, 6, 7) is reduced.Type: GrantFiled: April 18, 2018Date of Patent: June 6, 2023Assignee: KS Kolbenschmidt GmbHInventors: Gregor Müller, Gerhard Luz, Andreas Berninger, Emmerich Ottliczky, Matthias Fahr
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Patent number: 11566581Abstract: A steel piston (1) for a combustion engine, having an upper part in which a ring section (7) with at least one ring groove (8) is arranged, wherein the upper part is adjoined by a lower part that has two opposing skirt wall sections (2), wherein the two skirt wall sections (2) are connected via two mutually opposite case walls (3), wherein a pin bore (4) surrounded by a piston boss (6) is provided in each case wall (3). In one example, there is at least one aperture (14) or at least one recess in the case wall (3) in the region between the piston boss (6) and the skirt wall section (2).Type: GrantFiled: November 14, 2018Date of Patent: January 31, 2023Assignee: KS Kolbenschmidt GmbHInventors: Emmerich Ottliczky, Gerhard Luz, Eberhard Weiss, Ingo Roth
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Patent number: 11053885Abstract: A piston for an internal combustion engine includes a piston upper part and a piston lower part having a cooling channel including at least one inlet opening. A dam-type elevation is formed in the region of the at least one inlet opening through forging of the dam elevation in the cooling channel portion in the piston lower part. In one example, a funnel-shaped inlet contour is formed in the inlet opening by pre-forging. In one example, a V-shaped element is formed in the piston upper part cooling chamber portion in alignment with the inlet opening and used as a coolant jet splitter.Type: GrantFiled: December 19, 2017Date of Patent: July 6, 2021Assignee: KS Kolbenschmidt GmbHInventors: Gerhard Luz, Ingo Roth, Eberhard Weiss
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Publication number: 20200378336Abstract: A steel piston (1) for a combustion engine, having an upper part in which a ring section (7) with at least one ring groove (8) is arranged, wherein the upper part is adjoined by a lower part that has two opposing skirt wall sections (2), wherein the two skirt wall sections (2) are connected via two mutually opposite case walls (3), wherein a pin bore (4) surrounded by a piston boss (6) is provided in each case wall (3). In one example, there is at least one aperture (14) or at least one recess in the case wall (3) in the region between the piston boss (6) and the skirt wall section (2).Type: ApplicationFiled: November 14, 2018Publication date: December 3, 2020Inventors: Emmerich Ottliczky, Gerhard Luz, Eberhard Weiss, Ingo Roth
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Publication number: 20200072158Abstract: Piston (1) of an internal combustion engine, which piston is designed in structured construction, comprising two oppositely arranged load-bearing skirt wall portions (2), wherein a connecting wall (3) respectively extends, starting from a pin boss (4), in the direction of the side edge of the load-bearing skirt wall portions (2), characterized in that in an interior of the piston (1) is (are) disposed at least one rib (5, 6, 7), preferably three ribs (5, 6, 7), and the material of the regions around the at least one rib (5, 6, 7) is reduced.Type: ApplicationFiled: April 18, 2018Publication date: March 5, 2020Inventors: Gregor Müller, Gerhard Luz, Andreas Berninger, Emmerich Ottliczky, Matthias Fahr
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Publication number: 20190323450Abstract: A piston for an internal combustion engine includes a piston upper part and a piston lower part having a cooling channel including at least one inlet opening. A dam-type elevation is formed in the region of the at least one inlet opening through forging of the dam elevation in the cooling channel portion in the piston lower part. In one example, a funnel-shaped inlet contour is formed in the inlet opening by pre-forging. In one example, a V-shaped element is formed in the piston upper part cooling chamber portion in alignment with the inlet opening and used as a coolant jet splitter.Type: ApplicationFiled: December 19, 2017Publication date: October 24, 2019Inventors: Gerhard LUZ, Ingo ROTH, Eberhard WEISS
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Patent number: 10221807Abstract: The arrangement relates to a method for producing a cooling duct piston for an internal combustion engine, having the steps of producing a top piston part by introducing a combustion bowl, a cooling space of a part of a cooling duct and overflow ducts, producing a bottom piston part by introducing a part of a cooling duct, and joining the piston parts, wherein at least one transfer duct is created by bores. A cooling duct piston produced by the method is disclosed.Type: GrantFiled: June 24, 2013Date of Patent: March 5, 2019Assignee: KS Kolbenschmidt GmbHInventors: Michael Albert Janssen, Wolfgang Köhler, Gerhard Luz, Franz Ratzky
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Publication number: 20190024606Abstract: The invention relates to a piston for an internal combustion engine having an upper part integrally joined to a lower part having a shaft and at least one pin bore. The upper part including a combustion chamber bowl recess and a piston crown with a crown edge. At least one joint is arranged in the region of a ring zone and in an outer wall of the combustion bowl recess, and the ratio of piston compression height (h1) and the diameter of the piston (d1) is less than 0.53.Type: ApplicationFiled: August 29, 2016Publication date: January 24, 2019Applicants: KS Kolbenschmidt GmbH, KS Kolbenschmidt GmbHInventors: Eberhard Weiss, Gerhard Luz, Jochen Müller, Emmerich Ottliczky
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Patent number: 10066579Abstract: A cooling channel piston for an internal combustion engine which includes a piston bottom and a piston shaft that are joined thereto of a friction welding process. The piston bottom and the piston shaft jointly form a cooling channel. An annular wall which radially delimits the cooling channel towards the outside is formed by the piston bottom and/or the piston shaft. The annular wall can be sealed by a welding process once the piston bottom and the piston shaft have been joined together.Type: GrantFiled: July 9, 2015Date of Patent: September 4, 2018Inventors: Volker Gniesmer, Gerhard Luz, Jochem Müller, Christian Schaller
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Publication number: 20170328302Abstract: A piston for an internal combustion engine, configured as a gallery-cooled piston of two-piece construction includes a main body and a ring element. The ring element which has a ring zone and a fire land encloses a cooling gallery on the outside, which cooling gallery is delimited on the inside by an intermediate wall which separates the cooling gallery from a combustion chamber recess which is made in a piston head of the main body. The main body and the ring element together form two circumferential dividing planes which are offset with respect to one another, to which end in each case two interacting joining webs of the ring element and of the main body are connected with a material-to-material bond.Type: ApplicationFiled: June 7, 2017Publication date: November 16, 2017Inventors: Ottliczky Emmerich, Eberhard Weiss, Gerhard Luz, Willi Sikorsky
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Publication number: 20170058824Abstract: A piston for an internal combustion engine having an upper part joined by a positive material connection to a lower part, wherein the lower part includes a skirt and at least one pin bore, wherein the upper part includes a combustion bowl and a piston crown with a crown edge, wherein at least one joining point is located in the area of a ring belt and/or in an outer wall of the combustion bowl. A method for producing a piston for internal combustion engines is disclosed.Type: ApplicationFiled: September 3, 2015Publication date: March 2, 2017Inventors: Eberhard Weiss, Gerhard Luz, Jochen Muller, Emmerich Ottliczky
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Publication number: 20160222909Abstract: A cooling channel piston for an internal combustion engine which includes a piston bottom and a piston shaft that are joined thereto of a friction welding process. The piston bottom and the piston shaft jointly form a cooling channel. An annular wall which radially delimits the cooling channel towards the outside is formed by the piston bottom and/or the piston shaft. The annular wall can be sealed by a welding process once the piston bottom and the piston shaft have been joined together.Type: ApplicationFiled: July 9, 2015Publication date: August 4, 2016Inventors: Volker Gniesmer, Gerhard Luz, Jochem Muller, Christian Schaller
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Publication number: 20150226151Abstract: The invention relates to a piston (1) for an internal internal combustion engine, configured as a gallery-cooled piston of two-piece construction which comprises a main body (2) and a ring element (3). The ring element (2) which has a ring zone (18) and a fire land (17) encloses a cooling gallery (15) on the outside, which cooling gallery (15) is delimited on the inside by an intermediate wall (16) which separates the cooling gallery (15) from a combustion-chamber recess (12) which is made in a piston head (10) of the main body (2). The main body (2) and the ring element (3) together form two circumferential dividing planes (4a, 5a) which are offset with respect to one another, to which end in each case two interacting joining webs (6a, 6b; 7a, 7b) of the ring element (3) and of the main body (2) are connected with a material-to-material bond.Type: ApplicationFiled: September 18, 2013Publication date: August 13, 2015Applicant: KS KOLENBENSCHMIDT GMBHInventors: Ottliczky Emmerich, Eberhard Weiss, Gerhard Luz, Willi Sikorsky
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Publication number: 20150224589Abstract: A method for processing a constructed, liquid-cooled piston of an internal combustion engine, the piston including an upper piston part and a lower piston part, which are supported by a joining plane and are connected to each other in a bonded manner. An electrochemical method, such as electrochemical machining, is used to produce a passage opening or a hole in the piston. By means of the method, material is selectively removed after the completion of the upper part piston, the lower piston part, or the piston after the two piston parts have been joined. The electrochemical machining allows an arbitrarily geometrically designed topography having at least one passage opening, a hollow, or an oil pocket in cooling areas or non-cooling areas to be created on the piston.Type: ApplicationFiled: February 13, 2015Publication date: August 13, 2015Applicant: KS KOLBENSCHMIDT GMBHInventors: Janssen Albert Michael, Gniesmer Volker, Karl Diffenbach, Gerhard Luz
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Publication number: 20150159584Abstract: The arrangement relates to a method for producing a cooling duct piston for an internal combustion engine, having the steps of producing a top piston part by introducing a combustion bowl, a cooling space of a part of a cooling duct and overflow ducts, producing a bottom piston part by introducing a part of a cooling duct, and joining the piston parts, wherein at least one transfer duct is created by bores. A cooling duct piston produced by the method is disclosed.Type: ApplicationFiled: June 24, 2013Publication date: June 11, 2015Applicant: KS KOLBENSCHMIDT GMBHInventors: Michael Albert Janssen, Wolfgang Köhler, Gerhard Luz, Franz Ratzky
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Piston for internal combustion engines, produced by means of a multi-orbital friction welding method
Patent number: 8789273Abstract: A method for producing a piston of an internal combustion engine, designed as a one-piece cooling channel piston. The piston includes an upper part and a lower part supported by corresponding circumferential joining bosses together forming a joining zone. In order to produce a bonded joint of the upper part and the lower part, the joining bosses are connected by means of multiorbital friction welding in the region of a rotationally symmetrical or rotationally asymmetrical joining zone.Type: GrantFiled: January 30, 2009Date of Patent: July 29, 2014Assignee: KS Kolbenschmidt GmbHInventors: Michael Albert Janssen, Gerhard Luz, Volker Gniesmer, Steffen Stork, Martin Weissert -
Patent number: 8729915Abstract: A current monitor for sensing the current in a current path includes a resistive sensing element in a section of the current path and a current mirror circuit having a first semiconductor device and a second semiconductor device. Both semiconductor devices electrically interconnect with each other for copying the current in the second semiconductor device to the first semiconductor device. The first semiconductor device is electrically connected to an electric reference potential and to a current input side of the section via a resistive equivalence element in a first current branch. The second semiconductor device is electrically connected to the electric reference potential and to a current output side of the section in a second current branch. The current monitor further includes a constant current source for keeping the current in the second current branch independent from the potential difference between the potential of the current output side of the section and the reference potential.Type: GrantFiled: March 16, 2010Date of Patent: May 20, 2014Assignee: Alcatel LucentInventors: Gerhard Luz, Dirk Wiegner, Robin Machinal
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Patent number: 8536940Abstract: The invention relates to a method for amplifying a carrier signal (CS1) by using a power amplifier (PA1), the power amplifier (PA1) is feed with a supply voltage (PASV1) of a power supply (SMPS1). The method comprises the step of adapting a value of the supply voltage (PASV1) to a value related to a mean signal power of an input signal (DS) of a power amplifier system (PAS1).Type: GrantFiled: February 10, 2010Date of Patent: September 17, 2013Assignee: Alcatel LucentInventors: Thomas Bohn, Christoph Haslach, Xin Yu, Gerhard Luz
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Publication number: 20130062218Abstract: A method for processing a constructed, liquid-cooled piston of an internal combustion engine, the piston including an upper piston part and a lower piston part, which are supported by a joining plane and are connected to each other in a bonded manner. An electrochemical method, such as electrochemical machining, is used to produce a passage opening or a hole in the piston. By means of the method, material is selectively removed after the completion of the upper part piston, the lower piston part, or the piston after the two piston parts have been joined. The electrochemical machining allows an arbitrarily geometrically designed topography having at least one passage opening, a hollow, or an oil pocket in cooling areas or non-cooling areas to be created on the piston.Type: ApplicationFiled: February 12, 2011Publication date: March 14, 2013Applicant: KS KOLBENSCHMIDT GMBHInventors: Janssen Albert Michael, Gniesmer Volker, Karl Diffenbach, Gerhard Luz
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Publication number: 20120025854Abstract: A current monitor for sensing the current in a current path includes a resistive sensing element in a section of the current path and a current mirror circuit having a first semiconductor device and a second semiconductor device. Both semiconductor devices electrically interconnect with each other for copying the current in the second semiconductor device to the first semiconductor device. The first semiconductor device is electrically connected to an electric reference potential and to a current input side of the section via a resistive equivalence element in a first current branch. The second semiconductor device is electrically connected to the electric reference potential and to a current output side of the section in a second current branch. The current monitor further includes a constant current source for keeping the current in the second current branch independent from the potential difference between the potential of the current output side of the section and the reference potential.Type: ApplicationFiled: March 16, 2010Publication date: February 2, 2012Applicant: ALCATEL LUCENTInventors: Gerhard Luz, Dirk Wiegner, Robin Machinal