Patents by Inventor Karl Weisskopf
Karl Weisskopf 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).
-
Publication number: 20190093199Abstract: An aluminum alloy, in particular for a casting method, where the aluminum alloy includes at least aluminum, magnesium, manganese and copper. The aluminum alloy includes 0.001 to 0.50 wt. % of molybdenum, 0.05 to 0.4.5 wt. % of magnesium, 0.05 to 0.60 wt. % of manganese, up to 1.5 wt. % of iron, 0.25 to 4.00 wt. % of copper and 0.001 to 0.25 wt. % of vanadium.Type: ApplicationFiled: April 4, 2017Publication date: March 28, 2019Applicant: Daimler AGInventors: Thomas STUERZEL, Karl WEISSKOPF, Patrick IZQUIERODO
-
Publication number: 20160375484Abstract: A method for the production of a casting core is provided. The method includes preparing a mold which has at least one cavity and at least one filling opening which is fluidically connected to the cavity, introducing a liquid, hardenable salt molding material into the cavity via the filling opening, and at least partial hardening of the salt molding material introduced into the cavity to form a hollow body produced from hardened salt molding material, the hollow body having at least one hollow space of the casting core which is delimited by the hardened salt molding material. The hollow space of the casting core is closed on all sides by means of the salt molding material introduced into the cavity. A casting core is also provided.Type: ApplicationFiled: December 5, 2014Publication date: December 29, 2016Applicant: Daimler AGInventors: Paul FICKEL, Reinhard HOLL, Hermann PFEIFER, Michael SCHEYDECKER, Karl WEISSKOPF
-
Patent number: 9429100Abstract: A cooling duct piston (1) for combustion engines. The cooling duct piston has a piston basic body (2) that is connected to a lining part (3), which is facing an assigned combustion chamber. Here, the lining part (3) completely forms the piston surface (4) of the cooling duct piston (1) that faces the combustion chamber. An encircling depression (5) is provided in the surface of the piston basic body (2) facing the combustion chamber. The lining part (3) provides a permanent connection at least with the surface of the piston basic body (2) facing the combustion chamber, and thus bridges the encircling depression (5), such that the encircling depression (5), with the lining part (3) that bridges it, forms a cooling duct (6).Type: GrantFiled: September 24, 2011Date of Patent: August 30, 2016Assignee: Daimler AGInventors: Timotheus Kaiser, Hermann Pfeifer, Wolfgang Rehm, Karl Weisskopf
-
Patent number: 8820288Abstract: A semifinished product blank, suitable for the production of a steel piston (1) for internal combustion engines having cylinder crankcases made of light metal alloys. Such a steel piston (1) has at least one upper piston part (4) which has a combustion recess (2) and an annular wall (3), and a lower piston part (4?) which has a piston skirt (5) and a connecting rod bearing (6). The semifinished product blank is made of an austenitic steel, that is stabilized with Ni, Mn and N and that has a thermal expansion coefficient in a range of 16 to 21×10?6 K?1. Also disclosed is a steel piston, which at least has a piston skirt (5) made of an austenitic steel that is stabilzed with Ni, Mn, N. The piston skirt (5) has a thermal expansion coefficient in a range of 16 to 21×10?6 K?1.Type: GrantFiled: August 30, 2011Date of Patent: September 2, 2014Assignee: Daimler AGInventors: Timotheus Kaiser, Hermann Pfeifer, Wolfgang Rehm, Karl Weisskopf
-
Patent number: 8528513Abstract: The invention relates to a steel piston for internal combustion engines, comprising at least one piston upper part (12) provided with a combustion cavity (11) and an annular wall (5), and a piston lower part (13) provided with a connecting rod bearing (8). The steel piston is cast as a single component from a reduced-density steel alloy or a special steel alloy in the same material by means of a low-pressure casting method.Type: GrantFiled: June 12, 2007Date of Patent: September 10, 2013Assignee: Daimler AGInventors: Tilmann Haug, Wolfgang Rehm, Karl Weisskopf
-
Publication number: 20130213218Abstract: A cooling duct piston (1) for combustion engines. The cooling duct piston has a piston basic body (2) that is connected to a lining part (3), which is facing an assigned combustion chamber. Here, the lining part (3) completely forms the piston surface (4) of the cooling duct piston (1) that faces the combustion chamber. An encircling depression (5) is provided in the surface of the piston basic body (2) facing the combustion chamber. The lining part (3) provides a permanent connection at least with the surface of the piston basic body (2) facing the combustion chamber, and thus bridges the encircling depression (5), such that the encircling depression (5), with the lining part (3) that bridges it, forms a cooling duct (6).Type: ApplicationFiled: September 24, 2011Publication date: August 22, 2013Applicant: Daimler AGInventors: Timotheus Kaiser, Hermann Pfeifer, Wolfgang Rehm, Karl Weisskopf
-
Publication number: 20130180493Abstract: A semifinished product blank, suitable for the production of a steel piston (1) for internal combustion engines having cylinder crankcases made of light metal alloys. Such a steel piston (1) has at least one upper piston part (4) which has a combustion recess (2) and an annular wall (3), and a lower piston part (4?) which has a piston skirt (5) and a connecting rod bearing (6). The semifinished product blank is made of an austenitic steel, that is stabilized with Ni, Mn and N and that has a thermal expansion coefficient in a range of 16 to 21×10?6 K?1. Also disclosed is a steel piston, which at least has a piston skirt (5) made of an austenitic steel that is stabilzed with Ni, Mn, N. The piston skirt (5) has a thermal expansion coefficient in a range of 16 to 21×10?6 K?1.Type: ApplicationFiled: August 30, 2011Publication date: July 18, 2013Applicant: DAIMLER AGInventors: Timotheus Kaiser, Hermann Pfeifer, Wolfgang Rehm, Karl Weisskopf
-
Publication number: 20090178640Abstract: The invention relates to a steel piston for internal combustion engines, comprising at least one piston upper part (12) provided with a combustion cavity (11) and an annular wall (5), and a piston lower part (13) provided with a connecting rod bearing (8). The steel piston is cast as a single component from a reduced-density steel alloy or a special steel alloy in the same material by means of a low-pressure casting method.Type: ApplicationFiled: June 12, 2007Publication date: July 16, 2009Applicant: Daimler AGInventors: Tilmann Haug, Wolfgang Rehm, Karl Weisskopf
-
Patent number: 7553563Abstract: The invention concerns a composite material consisting of intermetallic phases and ceramic, in particular in the form of a coating on metallic substrates, as well as an arc wire spraying process for production of the composite material in which the intermetallic phases and the ceramics to be deposited are newly formed during the deposit process from the components of the supplied wires by chemical reaction. The invention further concerns wear resistant layers formed by the composites, tribologic layers and plating or hard-facing materials.Type: GrantFiled: February 9, 2004Date of Patent: June 30, 2009Assignee: Daimler AGInventors: Stefan Grau, Michael Scheydecker, Karl Weisskopf
-
Publication number: 20070277645Abstract: A lightweight crankshaft (1), with eccentric structures, such as con-rods, main bearings, etc., comprises cavities (2, 3, 4, 5, 7, 10, 12) and/or recesses (8) for weight reduction, both in the region of the axis of rotation and isolated therefrom in the region of the eccentric structures. According to the invention at least one cavity is provided (2, 3, 4, 6, 7, 10, 12) in which a stabilizing filler material (5) is located. Said stabilizing filler material can, for example, be a metal foam.Type: ApplicationFiled: August 13, 2002Publication date: December 6, 2007Inventors: Karl Weisskopf, Tilman Haug, Thomas Behr
-
Publication number: 20070080563Abstract: An A-pillar on a motor vehicle is provided with a windshield flange for the securing of a windshield. The A-pillar is of single-part design in the region of the windshield and a wall region forming the windshield flange bounds a hollow cross section of the A-pillar. The windshield can be integrated indirectly in the A-pillar, which leads to a reduction in viewing angle obscuration.Type: ApplicationFiled: September 17, 2004Publication date: April 12, 2007Applicant: DAIMLERCHRYSLER AGInventors: Konrad Eipper, Arndt Gerick, Konrad Goetz, Tilmann Haug, Wolfgang Kleinekathoefer, Karl Weisskopf
-
Publication number: 20060078749Abstract: The invention concerns a composite material consisting of intermetallic phases and ceramic, in particular in the form of a coating on metallic substrates, as well as an arc wire spraying process for production of the composite material in which the intermetallic phases and the ceramics to be deposited are newly formed during the deposit process from the components of the supplied wires by chemical reaction. The invention further concerns wear resistant layers formed by the composites, tribologic layers and plating or hard-facing materials.Type: ApplicationFiled: February 9, 2004Publication date: April 13, 2006Inventors: Stefan Grau, Michael Scheydecker, Karl Weisskopf
-
Publication number: 20040202883Abstract: A metal-ceramic composite material has a ceramic matrix and a metallic phase, which are intermingled with one another, together form a virtually completely dense body and are in contact with one another at boundary surfaces. An interlayer between the metallic phase and the ceramic matrix has a thickness of between 10 nm and 1 000 nm and is composed of reaction products of the metallic phase and the ceramic phase.Type: ApplicationFiled: June 7, 2004Publication date: October 14, 2004Inventors: Michael Scheydecker, Tanja Tschirge, Markus Walters, Karl Weisskopf
-
Patent number: 6271162Abstract: A process for producing a ceramic-metal composite, includes (1) mixing TiO2, and optionally Ti, with at least one of a boron-containing or carbon-containing material to give a green body mix; (2) heat treating the green body mix to a temperature from 900° C. to 1900° C. and below a temperature which leads to an autocatalytic reaction; (3) carrying out an exchange reaction between the material and the TiO2 to give a reaction product comprising at least one of TiBx and TiCy, wherein 0≦x 23 2 and 0≦y≦1; (4) producing a porous green body from the reaction product; (5) filling the porous green body with liquid aluminum after the exchange reaction; and (6) carrying out a reaction between the reaction product in the green body and the aluminum to form the ceramic-metal composite comprising a ceramic phase selected from the group consisting of TiBx-, TiCy-, TiCN- and Al2O3 and a comprising a metallic phase comprising an intermetallic compound of Ti and Al.Type: GrantFiled: October 27, 1999Date of Patent: August 7, 2001Assignee: DaimlerChrysler AGInventors: Tilmann Haug, Steffen Rauscher, Michael Schleydecker, Karl Weisskopf
-
Patent number: 6261981Abstract: The invention provides a fiber-reinforced composite ceramic containing high-temperature-resistant fibers, in particular fibres based on Si/C/B/N, which are reaction-bonded to a matrix based on Si, which is produced by impregnating fiber bundles of Si/C/B/N fibers with a binder suitable for pyrolysis and solidifying the binder, if desired subsequently conditioning the fiber bundles with an antisilicization layer suitable for pyrolysis, for example phenolic resin or polycarbosilane, subsequently preparing a mixture of fiber bundles, fillers such as SiC and carbon in the form of graphite or carbon black and binders, pressing the mixture to produce a green body and subsequently pyrolysing the latter under reduced pressure or protective gas to produce a porous shaped body which is then infiltrated, preferably under reduced pressure, with a silicon melt.Type: GrantFiled: March 28, 2000Date of Patent: July 17, 2001Assignee: DaimlerChrysler AGInventors: Gerd Dietrich, Tilmann Haug, Andreas Kienzle, Christian Schwarz, Heike Stöver, Karl Weisskopf, Rainer Gadow
-
Patent number: 6193928Abstract: A process for manufacturing ceramic metal composite bodies, the ceramic metal composite bodies and their use. The process is based on molten infiltration and the simultaneous or delayed exchange reaction of ceramic or metal ceramic un-fired bodies or sintered bodies which may consist of nitrides or carbides as well as metals, with molten metal of additional metals, whereby new nitride, carbide and intermetallic phases are formed which have improved wear and high-temperature characteristics. These ceramic metal composite bodies can be used for tribological applications.Type: GrantFiled: February 20, 1998Date of Patent: February 27, 2001Assignee: DaimlerChrysler AGInventors: Steffen Rauscher, Michael Scheydecker, Karl Weisskopf, Tanja Tschirge, Rainer Zimmermann-Chopin
-
Patent number: 6022505Abstract: A process for manufacturing a ceramic metal composite body in the case of which a dimensionally stable and porous sacrificial body is produced from ceramic initial products and is filled at a filling temperature with a softened metal, particularly under an increased pressure. The filled sacrificial body is heated to a reaction temperature and the metal to be filled in, BMe, is reacted with a metal of the ceramics. KMe, forming the ceramic metal composite body which has a ceramic phase having KMe.sub.m B.sub.x and/or KMe.sub.n C.sub.y and/or KMe.sub.o CN and BMe.sub.p O.sub.3 and has a metallic phase having an intermetallic compound which is formed of KMe and BMe, the filling temperature being lower than the reaction temperature and higher than or equal to the softening temperature of the metal.Type: GrantFiled: February 20, 1998Date of Patent: February 8, 2000Assignee: Daimler-Benz AktiengesellschaftInventors: Steffen Rauscher, Michael Scheydecker, Karl Weisskopf, Tilmann Haug