Patents by Inventor Karlheinz Bing
Karlheinz Bing 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: 10174710Abstract: A method for producing a piston may include aligning at least two piston components along corresponding joining surfaces, activating a laser designed for deep-welding, and aligning a laser beam with a starting point. The method may then include increasing a power density of the laser beam over a first defined path along the joining surfaces to produce a weld seam with an increasing weld seam depth, deep welding along the joining surfaces to produce a deep weld seam with a substantially constant weld seam depth up to a defined end point, and reducing the power density over a second defined path to produce a weld seam with a decreasing weld seam depth. The method may further include overwelding at least part of at least one of the first and second defined paths by a laser designed for heat conduction welding to produce at least one heat conduction weld seam.Type: GrantFiled: May 13, 2015Date of Patent: January 8, 2019Assignee: Mahle International GmbHInventors: Karlheinz Bing, Daniel Mock, Mathias Petrowitsch
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Publication number: 20170107934Abstract: A method for producing a piston may include aligning at least two piston components along corresponding joining surfaces, activating a laser designed for deep-welding, and aligning a laser beam with a starting point. The method may then include increasing a power density of the laser beam over a first defined path along the joining surfaces to produce a weld seam with an increasing weld seam depth, deep welding along the joining surfaces to produce a deep weld seam with a substantially constant weld seam depth up to a defined end point, and reducing the power density over a second defined path to produce a weld seam with a decreasing weld seam depth. The method may further include overwelding at least part of at least one of the first and second defined paths by a laser designed for heat conduction welding to produce at least one heat conduction weld seam.Type: ApplicationFiled: May 13, 2015Publication date: April 20, 2017Inventors: Karlheinz Bing, Daniel Mock, Mathias Petrowitsch
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Patent number: 9322358Abstract: A method for the production of a piston for an internal combustion engine, having a piston head, a piston skirt, and a circumferential recess configured between the piston head and the piston skirt. The piston has a piston base body and a piston ring element. The piston base body has at least a crown region of a combustion bowl as well as the piston skirt. The piston ring element has at least a piston crown, a wall region of the combustion bowl, a circumferential top land, and a circumferential ring belt with ring grooves. The piston ring element has a circumferential cooling channel between the wall region of the combustion bowl and the ring belt, closed with a closure element. The piston base body and the piston ring element are connected by a circumferential joining seam in the region of the combustion bowl.Type: GrantFiled: July 22, 2014Date of Patent: April 26, 2016Assignee: MAHLE International GmbHInventors: Karlheinz Bing, Michael T. Lapp, Rainer Scharp, Michael Ullrich
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Publication number: 20150082632Abstract: A method for producing an aluminum piston for an internal combustion engine may including providing a piston bowl having a bowl edge and a bowl base; subjecting an area of at least one of the bowl edge and the bowl base to a welding treatment to introduce at least one additional element into a base material of the piston bowl and to produce intermetallic phases in the base material; the welding treatment may introduce at least one of the following additional elements at the specified concentrations, 1-7 wt. percentage of Ni, 1-15 wt. percentage of Cu and 1-5 wt. percentage of Fe.Type: ApplicationFiled: March 25, 2013Publication date: March 26, 2015Inventors: Karlheinz Bing, Thomas Hackh, Frank Schnaiter
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Publication number: 20140331958Abstract: A method for the production of a piston for an internal combustion engine, having a piston head, a piston skirt, and a circumferential recess configured between the piston head and the piston skirt. The piston has a piston base body and a piston ring element. The piston base body has at least a crown region of a combustion bowl as well as the piston skirt. The piston ring element has at least a piston crown, a wall region of the combustion bowl, a circumferential top land, and a circumferential ring belt with ring grooves. The piston ring element has a circumferential cooling channel between the wall region of the combustion bowl and the ring belt, closed with a closure element. The piston base body and the piston ring element are connected by a circumferential joining seam in the region of the combustion bowl.Type: ApplicationFiled: July 22, 2014Publication date: November 13, 2014Applicant: MAHLE International GmbHInventors: Karlheinz BING, Michael T. LAPP, Rainer SCHARP, Michael ULLRICH
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Patent number: 8813712Abstract: A piston for an internal combustion engine has a piston head, a piston skirt, and a circumferential recess configured between the piston head and the piston skirt. The piston has a piston base body and a piston ring element. The piston base body has a crown region of a combustion bowl and the piston skirt. The piston ring element has a piston crown, a wall region of the combustion bowl, a circumferential top land, and a circumferential ring belt with ring grooves. The piston ring element has a circumferential cooling channel between the wall region of the combustion bowl and the ring belt, closed with a closure element. The piston base body and the piston ring element have a circumferential joining seam in the region of the combustion bowl, by way of which seam they are non-releasably connected with one another.Type: GrantFiled: April 18, 2011Date of Patent: August 26, 2014Assignee: MAHLE International GmbHInventors: Karlheinz Bing, Michael T. Lapp, Rainer Scharp, Michael Ullrich
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Publication number: 20120222644Abstract: A piston for an internal combustion engine has a piston head, a piston skirt, and a circumferential recess configured between the piston head and the piston skirt. The piston has a piston base body and a piston ring element. The piston base body has a crown region of a combustion bowl and the piston skirt. The piston ring element has a piston crown, a wall region of the combustion bowl, a circumferential top land, and a circumferential ring belt with ring grooves. The piston ring element has a circumferential cooling channel between the wall region of the combustion bowl and the ring belt, closed with a closure element. The piston base body and the piston ring element have a circumferential joining seam in the region of the combustion bowl, by way of which seam they are non-releasably connected with one another.Type: ApplicationFiled: April 18, 2011Publication date: September 6, 2012Applicant: MAHLE International GmbHInventors: Karlheinz Bing, Michael T. Lapp, Rainer Scharp, Michael Ullrich
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Patent number: 8161935Abstract: A method for producing a multi-part piston for an internal combustion engine and the piston itself, which has an upper piston part and a lower piston part, each having an inner and an outer support element, which elements delimit an outer circumferential cooling channel and an inner cooling chamber. The inner support element of the upper piston part and/or the inner support element of the lower piston part have at least one recess on their surface. The upper piston part and the lower piston part are connected with one another by pressure welding.Type: GrantFiled: June 23, 2009Date of Patent: April 24, 2012Assignee: MAHLE International GmbHInventors: Karlheinz Bing, Frank Schnaiter
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Publication number: 20120037115Abstract: A method for the production of a piston for an internal combustion engine has the following steps: producing an upper piston part having at least one joining surface, b) producing a lower piston part having at least one joining surface, c) producing a direct contact between the at least one joining surface of the upper piston part and the at least one joining surface of the lower piston part, d) heating the upper piston part and the lower piston part by induction or by a direct flow of current over the joining surfaces in the region of the joining surfaces that have been brought into direct contact, e) connecting the upper and lower piston parts with one another to produce a piston by a pressing process, and machining the piston to finish it.Type: ApplicationFiled: August 9, 2011Publication date: February 16, 2012Applicant: MAHLE INTERNATIONAL GMBHInventors: Frank SCHNAITER, Karlheinz BING, Rainer SCHARP
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Publication number: 20110030627Abstract: The invention relates to a cylinder crankcase (1) for an internal combustion engine, into which crankcase a one-piece cylinder jacket system (9) is diecast, the system comprising at least two cylinder jackets (5, 6, 7) that are arranged in a row and that are interconnected via webs (2, 3, 4). The aim of the invention is to provide a cylinder crankcase which can be produced at low cost and which comprises a cylinder jacket system that can be subjected to high thermal and mechanical stresses. According to the invention, a lateral face of the cylinder jacket system (9) has a rough structure and is surrounded by a diecast outer casing (26). Respective coolant passages (14, 15, 16) having openings (31, 32) for supplying and discharging the coolant are formed into the webs (2, 3, 4), at least one opening (32) extending through the outer casing (26) into the recess (25) for the water cooling jacket.Type: ApplicationFiled: August 23, 2008Publication date: February 10, 2011Inventors: Karlheinz Bing, Frank Winger, Ulrich Bischofberger, Stefan Spangenberg
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Patent number: 7806098Abstract: A cylinder sleeve for an internal combustion engine is provided with a flat zone that extends along the entire axial length thereof. The cylinder sleeve is embodied as a rough cast sleeve whose outer surface comprises a rough zone that extends along the entire axial length thereof and consists of a plurality of elevations with undercuts in order to ensure that a sufficient amount of combustion heat generated during operation of the engine is discharged.Type: GrantFiled: February 18, 2005Date of Patent: October 5, 2010Assignee: Mahle GmbHInventors: Karlheinz Bing, Stefan Spangenberg, Georg Schuller
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Publication number: 20100108017Abstract: A method for producing a multi-part piston for an internal combustion engine and the piston itself, which has an upper piston part and a lower piston part, each having an inner and an outer support element, which elements delimit an outer circumferential cooling channel and an inner cooling chamber. The inner support element of the upper piston part and/or the inner support element of the lower piston part have at least one recess on their surface. The upper piston part and the lower piston part are connected with one another by pressure welding.Type: ApplicationFiled: June 23, 2009Publication date: May 6, 2010Inventors: Karlheinz Bing, Frank Schnaiter
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Publication number: 20070209627Abstract: Disclosed is a cylinder sleeve for an internal combustion engine. The outer surface of said cylinder sleeve is provided with a flat zone (61) that extends along the entire axial length thereof. The inventive cylinder sleeve is embodied as a rough cast sleeve whose outer surface comprises a rough zone that extends along the entire axial length thereof and consists of a plurality of elevations with undercuts in order to ensure that a sufficient amount of combustion heat generated during operation of the engine is discharged.Type: ApplicationFiled: February 18, 2005Publication date: September 13, 2007Inventors: Karlheinz Bing, Stefan Spangenberg, Georg Schuller
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Patent number: 7172011Abstract: A light metal cylinder liner with a surface which facilitates the connection with the surrounding cast material may be produced. The cylinder liner is produced by a lost-foam method with a form for production of the cast foam model having a structured surface with height variations of 0.8 to 5 mm. The structured surface is, for example, grooves or longitudinal elevations.Type: GrantFiled: July 21, 2006Date of Patent: February 6, 2007Assignee: Mahle GmbHInventors: Karlheinz Bing, Frank Winger
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Publication number: 20060254743Abstract: A light metal cylinder liner with a surface which facilitates the connection with the surrounding cast material may be produced. The cylinder liner is produced by a lost-foam method with a form for production of the cast foam model having a structured surface with height variations of 0.8 to 5 mm. The structured surface is, for example, grooves or longitudinal elevations.Type: ApplicationFiled: July 21, 2006Publication date: November 16, 2006Inventors: Karlheinz Bing, Frank Winger
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Patent number: 7127813Abstract: A method for the production of pistons having depression edge armoring for internal combustion engines, in which a more heat-resistant armoring ring, in comparison with a forged piston blank having a combustion depression, is connected with the piston blank in the region of the depression edge. The method comprises the following steps: a first piston blank is set on a projection of the armoring ring in the region of the depression edge; the armoring ring is connected with the first piston blank by friction-welding; a second piston blank is set onto the projection of the armoring ring, in such a manner that the two piston blanks do not touch; the second piston blank is connected with the armoring ring by means of friction-welding; a the armoring ring is cut between the piston blanks, and the pistons are given their final shape by a cutting work method.Type: GrantFiled: December 12, 2003Date of Patent: October 31, 2006Assignee: Mahle GmbHInventors: Karlheinz Bing, Gerhard Bucher
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Patent number: 7069881Abstract: The invention relates to a cooled ring carrier that is cast into a piston for internal combustion engines. According to the invention, the zone of the ring carrier facing the cooling channel is coated, thereby preventing air from escaping from the cooling channel through the ring carrier material to the melt during alfination of the cooled ring carrier, and forming oxides.Type: GrantFiled: June 26, 2002Date of Patent: July 4, 2006Assignee: MAHLE GmbHInventor: Karlheinz Bing
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Patent number: 6957489Abstract: The aim of the invention is to produce a light-alloy bearing bush with a rough external surface. To achieve this, particles, which are subsequently surrounded in part by the molten metal, are applied to the surface of the casting mould. When the bearing bush is released from the mould, the particles remain in said bush and are subsequently removed from the bearing bush preform either mechanically or by being dissolved in liquid.Type: GrantFiled: June 7, 2002Date of Patent: October 25, 2005Assignee: Mahle GmbHInventors: Karlheinz Bing, Martin Rühle, Fritz Warth, Frank Winger
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Publication number: 20040194308Abstract: A method for the production of pistons having depression edge armoring for internal combustion engines, in which a more heat-resistant armoring ring, in comparison with a forged piston blank having a combustion depression, is connected with the piston blank in the region of the depression edge.Type: ApplicationFiled: December 12, 2003Publication date: October 7, 2004Applicant: Mahle GmbHInventors: Karlheinz Bing, Gerhard Bucher
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Publication number: 20040177505Abstract: A method for the production of a forged piston for an internal combustion engine, having a combustion depression provided on the piston head. The piston is formed from a first cylindrical unmachined part having at least one flat face made of oxidation-resistant steel and a second cylindrical unmachined part having at least one flat face made of hot-forgeable steel, with the same diameters. The two unmachined parts are formed to produce a piston blank, by means of forging, causing the combustion depression to be formed from oxidation-resistant steel. The piston blank is subsequently finished via machining to produce a piston ready for installation in the internal combustion engine.Type: ApplicationFiled: December 12, 2003Publication date: September 16, 2004Applicant: Mahle GmbHInventors: Karlheinz Bing, Gerhard Bucher