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公开(公告)号：US11466728B2
公开(公告)日：2022-10-11
申请号：US15927461
申请日：2018-03-21
申请人： Federal-Mogul LLC
发明人： David M. Saxton
IPC分类号： B23K20/00 , B23K20/26 , F16C17/20 , F16C33/12 , F16C17/02 , F16C33/14 , B23K103/04 , B23K103/10 , F16C17/04
摘要： A bearing including a backing formed of a steel material, a lining formed of aluminum or an aluminum alloy, and a diffusion barrier layer disposed between the backing and the lining is provided. The diffusion barrier layer is formed of nickel or a nickel alloy and has a thickness ranging from 1 micron to 100 microns. The bearing is typically formed by cladding the lining or plating the steel backing with the diffusion barrier layer, bonding the lining and the backing with the diffusion barrier layer between, heating to a temperature of at least 400° C., and forming the bearing into a shape after or before the heating step.
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公开(公告)号：US11067033B2
公开(公告)日：2021-07-20
申请号：US15980595
申请日：2018-05-15
申请人： FEDERAL-MOGUL LLC
摘要： A piston capable of operating at a high temperature and consequently contributing to a high in-cylinder temperature, as well as reducing engine oil temperature, when used in an internal combustion engine, is provided. The piston includes an upper portion and a lower portion welded together to present a cooling gallery therebetween. The cooling gallery extends circumferentially around a center axis of the piston and is spaced the center axis. A partition is located in the cooing gallery and extends from one inner surface to another inner surface of the cooling gallery. The partition extends circumferentially around the center axis, and divides the cooling gallery into at least a first gallery portion and a second gallery portion. The partition can be formed as one piece with the upper portion or the lower portion. Alternatively, the partition can be formed as a separate piece from the upper portion and the lower portion.
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公开(公告)号：US10926330B2
公开(公告)日：2021-02-23
申请号：US15880359
申请日：2018-01-25
申请人： Federal-Mogul LLC
发明人： Michael Weinenger
IPC分类号： B22F5/00 , B22F7/06 , F02F3/00 , F02F3/10 , F16J1/14 , B23K26/34 , B23P15/10 , B23K26/082 , B23K26/346 , B23K26/144 , B22F3/105 , B22F3/11 , B33Y10/00 , B33Y80/00 , B22F7/08 , F02F3/22 , B23K101/00 , B23K103/04 , B23K103/12
摘要： A steel piston with a bushing applied to pin bore surfaces by laser cladding or laser additive manufacturing is provided. The bushing is formed of metal, such as bronze, and metallurgically bonded to the steel of the piston. Thus, the bushing cannot fail by rotating relative to pin bore surfaces. The bushing has a porosity ranging from 0.05% to 5%, based on the total volume of the bushing, and a thickness ranging from 0.07 mm to 6 mm. Since the metal is applied directly to the steel by laser cladding or laser additive manufacturing, the overall size of the piston is reduced, compared to typical pistons with a separate steel backed bushing, and the possibility of bushing rotation is avoided. The bushing also provides scuffing resistance and increased unit load capacity of the pin bore.
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公开(公告)号：US10714907B2
公开(公告)日：2020-07-14
申请号：US16113177
申请日：2018-08-27
申请人： Federal-Mogul LLC
摘要： A firing tip for a corona igniter is provided. The firing tip includes a base formed of metal, such as nickel, and rivets formed of precious metal, such as iridium. The base includes indentations, and the rivets are disposed in the indentations of the base. The rivet has a melting point and/or wear resistance greater than the base. Typically, the indentations of the base include a concave surface and the rivets have a cylindrical shape matching the shape of the indentations. The rivets can be sharpened to a point. The rivets can include a first piece formed of precious metal and a second piece formed of nickel or nickel alloy, wherein an end of the first piece is welded to an end of the second piece, and the second piece is welded to the base. Alternatively, the rivets can be formed entirely of the precious metal.
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5.发明授权公开(公告)号：US10543535B2
公开(公告)日：2020-01-28
申请号：US15703552
申请日：2017-09-13
发明人： Philippe Beaulieu , Denis B. Christopherson, Jr. , Leslie John Farthing , Todd Schoenwetter , Gilles L'Espérance
IPC分类号： C22C33/00 , B22F9/08 , B22F1/00 , B22F3/12 , C22C1/02 , C22C33/02 , C22C37/06 , B22F3/10 , C21D6/00 , C21D9/00
摘要： A powder metal composition for high wear and temperature applications is made by atomizing a melted iron based alloy including 3.0 to 7.0 wt. % carbon; 10.0 to 25.0 wt. % chromium; 1.0 to 5.0 wt. % tungsten; 3.5 to 7.0 wt. % vanadium; 1.0 to 5.0 wt. % molybdenum; not greater than 0.5 wt. % oxygen; and at least 40.0 wt. % iron. The high carbon content reduces the solubility of oxygen in the melt and thus lowers the oxygen content to a level below which would cause the carbide-forming elements to oxidize during atomization. The powder metal composition includes metal carbides in an amount of at least 15 vol. %. The microhardness of the powder metal composition increases with increasing amounts of carbon and is typically about 800 to 1,500 Hv50.
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公开(公告)号：US10473056B2
公开(公告)日：2019-11-12
申请号：US16103217
申请日：2018-08-14
申请人： FEDERAL-MOGUL LLC
发明人： Andrew J. Miller , Bruce Inwood , Marc Brandt
摘要： A ferrous piston for gasoline powered engines having dimensions which achieve reduced mass and improved performance is provided. The piston crown has a thickness of less than 4 mm and includes valve pockets with an axial clearance between the valve pockets and an uppermost ring groove of less than 1.5 mm. The pin bosses have an axial thickness of less than 3.7% of a bore diameter, which is the largest outer diameter of the piston, measured between a pin bore and the crown at 1 mm from an inner face forming the pin bore. Each pin boss has a radial thickness of less than 3% of the bore diameter measured between the pin bore and a lower end of the pin boss. An undercrown surface presents a projected area of less than 45% of a total piston bore area, wherein the total piston bore area is πBD2/4, BD being the bore diameter.
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公开(公告)号：US20190331222A1
公开(公告)日：2019-10-31
申请号：US15963838
申请日：2018-04-26
申请人： Federal-Mogul LLC
发明人： Miguel Azevedo , Gregory Salenbien
摘要： A piston formed of steel and/or cast iron for a heavy-duty diesel engine which includes an oil belt for controlling an oil film and thus achieving reduced oil consumption and carbon build-up is provided. The piston includes an uppercrown portion presenting a combustion surface, a ring belt depending from the combustion surface, pin bosses depending from the ring belt, and skirt panels depending from the ring belt and located diametrically opposite one another. The ring belt includes two ring grooves preferentially but accommodates a 3 ring groove version for containing piston rings. The oil belt is located axially below a pin bore on the pin bosses. The oil belt also has a convex shape extending continuously around a circumference of the piston.
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公开(公告)号：US20190293114A1
公开(公告)日：2019-09-26
申请号：US15927461
申请日：2018-03-21
申请人： Federal-Mogul LLC
发明人： David M. SAXTON
摘要： A bearing including a backing formed of a steel material, a lining formed of aluminum or an aluminum alloy, and a diffusion barrier layer disposed between the backing and the lining is provided. The diffusion barrier layer is formed of nickel or a nickel alloy and has a thickness ranging from 1 micron to 100 microns. The bearing is typically formed by cladding the lining or plating the steel backing with the diffusion barrier layer, bonding the lining and the backing with the diffusion barrier layer between, heating to a temperature of at least 400° C., and forming the bearing into a shape after or before the heating step.
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公开(公告)号：US10422299B2
公开(公告)日：2019-09-24
申请号：US15493025
申请日：2017-04-20
申请人： Federal-Mogul, LLC
摘要： A galleryless piston and method of construction provide a piston body forged from a single piece of material having an upper combustion surface extending around a longitudinal center axis along which the piston reciprocates for exposure to a combustion chamber of an internal combustion engine. The upper combustion surface has an asymmetric geometry relative to a center plane extending along the central longitudinal axis in generally perpendicular relation to a pin bore axis.
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公开(公告)号：US10273902B2
公开(公告)日：2019-04-30
申请号：US15436966
申请日：2017-02-20
申请人： FEDERAL-MOGUL LLC
发明人： Norbert G. Schneider
IPC分类号： F02F3/00 , F02F3/10 , C23C4/11 , C23C4/126 , C23C4/134 , C23C4/02 , C04B35/48 , C04B35/486 , C04B35/622 , C23C4/06 , C23C4/08 , C23C28/00 , F02F3/12 , F02B77/02 , C23C4/12 , F02F3/26 , C23C4/129
摘要： A galleryless steel piston designed to improve thermal efficiency, fuel consumption, and performance of an engine is provided. The piston includes a steel body portion and a thermal barrier layer applied to an upper combustion surface and/or a ring belt to reduce the amount of heat transferred from a combustion chamber to the body portion. The thermal barrier layer has a thermal conductivity which is lower than a thermal conductivity of the steel body portion. The thermal barrier layer typically includes a ceramic material, for example ceria, ceria stabilized zirconia, and/or a mixture of ceria stabilized zirconia and yttria stabilized zirconia in an amount of 90 to 100 wt. %, based on the total weight of the ceramic material. The thermal barrier layer can also have a gradient structure which gradually transitions from 100 wt. % of a metal bond material to 100 wt. % of the ceramic material.
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