Cylinder Head Patents (Class 123/193.5)
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Publication number: 20140305399Abstract: A bearing block assembly in an engine is provided. The bearing block assembly includes at least one bearing block to rotatably support an oil lubricated shaft and fastening apparatus to attach the at least one bearing block to a flat mounting surface on a large engine component and a thermal barrier positioned between the shaft and the flat mounting surface configured to reduce the loss of heat to the large engine component from oil used to lubricate the shaft.Type: ApplicationFiled: April 1, 2014Publication date: October 16, 2014Applicant: Ford Global Technologies, LLCInventors: Ian Graham Pegg, Robert Helle-Lorentzen, Nigel Philip Harold Fawcett, Roland Paul Stark
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Publication number: 20140305398Abstract: Disclosed is an engine that comprises an engine block, and the engine block comprises a cylinder. The engine further comprises a cylinder head mounted to the engine block, and the cylinder head comprises an intake valve seat and a shroud. Further yet, the engine comprises a combustion chamber formed at least partially by the cylinder and the cylinder head. The intake valve is configured to travel between a fully closed position seated against the intake valve seat and an opened position displaced from the intake valve seat, thus allowing intake flow through the intake valve seat into the combustion chamber. The shroud only partially surrounds a periphery of the valve and extends along at least a portion of the travel of the intake valve so as to restrict intake flow along only a portion of the intake valve.Type: ApplicationFiled: April 16, 2013Publication date: October 16, 2014Applicant: Deere & CompanyInventors: JOSEPH R. GONSOWSKI, ERIC J. HAALAND, DAN A. WARRINGTON
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Patent number: 8850804Abstract: A secondary air injection or SAIR system is illustrated and described which includes a first air injection path defined by in part by a lower ditch formed in the head mounting surface of the cylinder block, and a second air injection path defined in part by a second ditch formed in the block mounting surface. The cylinder head gasket is used to separate and seal the first ditch from the second ditch. The first and second air injection paths are separate and isolated from one another such that secondary air may be selectively introduced through the first air injection path into the first exhaust leg and selective introduced through the second injection path into the second exhaust leg independent of the first air injection path.Type: GrantFiled: February 15, 2013Date of Patent: October 7, 2014Assignee: GM Global Technology Operations LLCInventors: Alan W. Hayman, Kenneth M. Eastman, Robert S. McAlpine
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Publication number: 20140290617Abstract: Provided is an engine combustion chamber structure. Also provided is an inner wall structure for a through channel, through which exhaust gas or intake gas of the engine passes. An engine combustion engine structure is provided with a heat-insulating member on the inner wall of an engine constituent member which constitutes an engine combustion chamber, the heat-insulating member containing a heat-insulating porous layer formed from ceramics, and a surface dense layer formed on the surface of the heat-insulating porous layer and formed from ceramics. The surface dense layer of the heat-insulating member has an open porosity of 5% or less, and preferably the heat-insulating porous layer has a larger open porosity than the open porosity of the surface dense layer.Type: ApplicationFiled: May 30, 2014Publication date: October 2, 2014Applicant: NGK INSULATORS, LTD.Inventors: Takahiro Tomita, Mikiya Ichimura, Shigeharu Hashimoto
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Publication number: 20140245986Abstract: A cylinder head for an internal combustion engine is provided which include a valve spring boss having a central opening for accommodating a valve and having a contact area for retaining said valve. The contact area has a first portion and a second portion. The first portion being ring-shaped and delimited by the opening, and the second portion being radially protruding from the first portion.Type: ApplicationFiled: March 4, 2014Publication date: September 4, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Peter Seeger
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Publication number: 20140238331Abstract: A resin-made molded cylinder head cover, which is light in weight and relatively thin particularly at a flange part thereof comprises a cover part that is rectangular in shape and has a plurality of plug holes aligned in a longitudinally extending center area of the cover part; a flange part that is integral with and extends around a periphery of the cover part, so that the cylinder head cover is shaped like a rectangular shallow dish; and thicker elongate bead portions that are integral with the cover part and extend respectively along laterally opposed sides of the longitudinally extending center area, each bead portion being thicker than a general area of the cover part.Type: ApplicationFiled: February 24, 2014Publication date: August 28, 2014Applicant: MAHLE FILTER SYSTEMS JAPAN CORPORATIONInventors: Takanobu SAITO, Masanori SUTO, Satoshi ARAKAWA
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Patent number: 8813711Abstract: A cylinder head assembly is provided. In one example, the cylinder head assembly includes a cylinder head, a cam cap coupled to the cylinder head having a component port, and a cam cover coupled to the cylinder head. The cylinder head assembly cylinder head assembly further includes a drainage passage including an inlet opening and an outlet extending through an exterior cylinder head surface.Type: GrantFiled: January 24, 2012Date of Patent: August 26, 2014Assignee: Ford Global Technologies, LLCInventors: Frank Acierno Valencia, John Carl Lohr
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Patent number: 8813710Abstract: A cylinder head assembly for an internal combustion engine includes a fluid cavity that contains a fluid. The cylinder head assembly also includes a first member with a first internal surface defining a first part of the fluid cavity. Also, the assembly includes a second member with a second internal surface defining a second part of the fluid cavity. The second member is coupled to the first member. The first and second internal surfaces cooperate to define the fluid cavity.Type: GrantFiled: July 27, 2011Date of Patent: August 26, 2014Assignee: Chrysler Group LLCInventors: Christopher P. Thomas, Alan G. Falkowski, Richard H. Sands
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Publication number: 20140230773Abstract: The present invention relates to a combustion chamber of a diesel engine in accordance with the preamble of Claim 1, a method for igniting a fuel-air mixture in a combustion chamber of a diesel engine in accordance with the preamble of Claim 14, and a diesel engine in accordance with the preamble of Claim 15.Type: ApplicationFiled: October 15, 2012Publication date: August 21, 2014Inventor: Vladimir Borissovskiy
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Patent number: 8800525Abstract: A cylinder head adapted to be mounted to a cylinder block of an internal combustion engine has a cooling jacket at least partially integrated in the cylinder head. The engine has two groups of cylinders: inside cylinders and outside cylinders. Each cylinder has at least one exhaust port, each leading to an individual duct. Individual ducts of outside cylinders converge to form an outside combined duct. In a four-cylinder engine or cylinder head, individual ducts of inside cylinders converge to form an inside combined duct with the inside combined duct remaining separated from the outside combined duct by the cooling jacket. The inside combined duct is farther away from the mounting surface of the cylinder head to the cylinder block than the outside combined duct. The cooling jacket includes: upper, middle, and lower cooling jackets and connectors between the upper and lower cooling jackets.Type: GrantFiled: November 21, 2011Date of Patent: August 12, 2014Assignee: Ford Global Technologies, LLCInventor: Kai Sebastian Kuhlbach
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Patent number: 8770162Abstract: A lifter guide includes a lifter guide body having an outer surface and an inner surface that extend from a first end to a second end. The inner surface defines at least one push rod passage. A plurality of compression members are provided at the first end. The plurality of compression members project proudly from the first end. The plurality of compression members are configured and disposed to be compressed by a cylinder head to retain the lifter guide in a cylinder block. The lifter guide is devoid of mechanical fasteners.Type: GrantFiled: November 27, 2012Date of Patent: July 8, 2014Assignee: GM Global Technology Operations LLCInventors: Nick John Hendriksma, Gerald R. Stabel, Kenneth J. Veenstra
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Publication number: 20140137818Abstract: An exhaust manifold and diffuser integrated cylinder head, includes an exhaust manifold and a exhaust passage. The exhaust manifold is integrally formed with the cylinder head. The exhaust passage is integrally formed with the cylinder head such that a turbocharger is mounted on a joining part of exhaust ports of the exhaust manifold and exhaust gas discharged from the exhaust passage flows to the turbocharger.Type: ApplicationFiled: June 18, 2013Publication date: May 22, 2014Inventors: Seung Woo KO, Hyun Wook RYU
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Patent number: 8726874Abstract: A cylinder bore with selective surface treatment includes a longitudinal axis and a cylindrical wall extending along the longitudinal axis, the cylindrical wall including first and second end portions and a middle portion positioned between the first and second end portions, the middle portion having a greater surface roughness than at least one of the first and second end portions.Type: GrantFiled: May 1, 2012Date of Patent: May 20, 2014Assignee: Ford Global Technologies, LLCInventors: Rodney G. Whitbeck, David Alan Stephenson, Keith Raymond Bartle, David Garrett Coffman
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Patent number: 8714128Abstract: A cylinder head for an internal combustion engine has a body integrating, in a single cast piece, an exhaust manifold and including a lower cooling jacket and an upper cooling jacket, The lower cooling jacket is longitudinally divided into a plurality of separate transverse chambers associated to various engine cylinders, while the upper cooling jacket has a portion extending longitudinally over the entire development of the head and communicating with separate transverse chambers located on the intake side of the head. The exhaust conduits integrated in the head form separate subgroups of exhaust conduits merging into manifold portions superimposed and spaced apart from each other. The lower cooling jacket has a portion thereof which extends in the area of the body of the head which separates the superimposed portions of the abovementioned subgroups of exhaust conduits.Type: GrantFiled: November 29, 2011Date of Patent: May 6, 2014Assignee: Fiat Powertrain Technologies S.p.A.Inventors: Giampaolo Galeazzi, Antonio Abozzi, Carmelo D'Anna
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Patent number: 8707926Abstract: A cylinder head cover structure of a vehicle which can shorten a longitudinal length of a vehicle while avoiding the restriction on the layout of an engine. A motorcycle includes a vehicle body frame, an engine which is mounted on the vehicle body frame in a suspended manner and includes a cylinder head cover and a radiator which is arranged in front of the engine and behind a front wheel. A recessed portion which is recessed toward a rear side of the vehicle is formed in the cylinder head cover so as to allow a lower portion of the radiator to enter the recessed portion.Type: GrantFiled: September 22, 2010Date of Patent: April 29, 2014Assignee: Honda Motor Co., Ltd.Inventors: Hiroshi Tadokoro, Takanori Osuka, Seiichi Nishihira
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Patent number: 8701617Abstract: A combustion chamber for an internal combustion engine, adapted to promote induction air flow. The combustion chamber has a bulge located near an intake valve head. The bulge projects away from the piston and forms that part of the combustion chamber farthest from the piston. Slope of the walls of the bulge is greater than the angle of the head of the intake valve relative to the deck of the engine block, in engines having separate cylinder heads. The bulge is curved so as to make seamless transition with the cylinder wall at that portion away of the bulge which is distant from the intake valve.Type: GrantFiled: November 1, 2011Date of Patent: April 22, 2014Inventor: Joseph Facciano
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Patent number: 8689762Abstract: A process for remanufacturing a cylinder head that includes a worn or damaged rocker arm stand adapted to receive a rocker shaft to which at least one rocker arm is mounted, the steps including machining a channel in a surface of the worn or damaged rocker arm stand, securing an insert into the channel, and machining the insert to form a remanufactured inner facing surface. The remanufactured cylinder head includes at least one rocker arm stand that has a machined channel with a remanufactured insert secured therein, the rocker shaft being disposed adjacent the inner facing surface, not the rocker arm stand.Type: GrantFiled: January 15, 2013Date of Patent: April 8, 2014Assignee: Caterpillar Inc.Inventors: Christopher Bach, Curtis Graham, Trent Simpson, Michael Bridges
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Publication number: 20140090620Abstract: This is a modular internal combustion engine with an upper and lower block construction comprising a lower block with multiple angles mating with the upper block and having an upper block construction that allows the upper block to tilt over for easy access to the crankshaft and other lower end components. An upper and lower block that can be die cast without cores.Type: ApplicationFiled: September 25, 2013Publication date: April 3, 2014Inventor: Kenneth Michael Buck
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Patent number: 8683973Abstract: An internal combustion engine, which includes a cylinder block, a cylinder head fastened to the cylinder block, an aperture formed in a side of the cylinder head, and a conduit assembly, such as an intake runner assembly or an exhaust conduit assembly. A combustion chamber is formed by the cylinder block and the cylinder head. The intake runner assembly is received within the aperture and configured to communicate air to the combustion chamber. The intake runner assembly includes a first piece and a second piece. The first piece has a first channel that includes a bend. The second piece has a second channel that includes another bend mirroring the bend of the first channel. The first piece is coupled to the second piece such that the first and second channels together form a flow path through the intake runner assembly, and the bends of the first and second channels together form a smooth turn in the flow path.Type: GrantFiled: October 12, 2010Date of Patent: April 1, 2014Assignee: Briggs & Stratton CorporationInventor: Jason J. Raasch
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Patent number: 8671904Abstract: A cylinder head for an internal combustion engine has a body integrating in a single cast piece, the exhaust manifold. The exhaust conduits form separate subgroups merging into manifold portions superimposed and spaced apart from each other. A lower cooling jacket, an upper cooling jacket and an intermediate cooling jacket are formed in the head. The lower cooling jacket is longitudinally divided into a plurality of separate transverse chambers, while the upper cooling jacket has a portion extended longitudinally over the entire development of the head. The lower cooling jacket has a portion extending in the area of the body which separates the superimposed portions of the subgroups of exhaust conduits. The intermediate jacket forms a main outlet at an end of the head. The upper jacket has a first portion at the center of the head and a second portion forming an auxiliary circuit adjacent to said main outlet.Type: GrantFiled: November 28, 2011Date of Patent: March 18, 2014Assignee: Fiat Powertrain Technologies S.p.A.Inventors: Carmelo D'Anna, Antonio Abozzi
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Publication number: 20140069358Abstract: A cylinder liner for an engine is disclosed. The cylinder liner may have a hollow cylindrical sleeve extending from a first end to a second end along a longitudinal axis. The cylinder liner may also have a plurality of circumferentially spaced intake ports formed within the sleeve. The plurality of intake ports may have a first intake port positioned at a first axial distance from the first end. The plurality of intake ports may also have a second intake port positioned at a second axial distance from the first end.Type: ApplicationFiled: September 13, 2012Publication date: March 13, 2014Inventors: Deep Bandyopadhyay, Jonathan Dolak, Raghavendra Subramanya
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Patent number: 8667944Abstract: An engine provided herein. The engine includes a cylinder head assembly, a cap including an opening, an oil routing plug positioned in the opening including a recess traversing the plug, the recess and a portion of the wall of the opening defining a boundary of a plug oil passage, and an oil supply passage extending through the cylinder head assembly including an inlet fluidly coupled to a lubrication circuit and an outlet opening into the recess.Type: GrantFiled: September 20, 2011Date of Patent: March 11, 2014Assignee: Ford Global Technologies, LLCInventor: Theodore Beyer
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Publication number: 20140060475Abstract: An internal combustion engine includes a piston disposed within a bore and moveable in a reciprocating motion within the bore along a central bore axis. The piston includes an axial end surface that defines a combustion chamber having a plurality of annular recesses recessed into the axial end surface of the piston. One of a plurality of valves is disposed opposite each of the plurality of annular recesses of the combustion chamber. Each of the plurality of annular recesses is axially aligned with a head of one of the plurality of valves and is sized to receive an outer perimeter of the head therein to provide clearance during valve overlap, between the axial end surface of the piston and the head of the valve, when the piston is disposed near a top dead center position.Type: ApplicationFiled: August 29, 2012Publication date: March 6, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Robert D. Straub, Paul Anthony Battiston, Amrita R. Wadhwa
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Patent number: 8662033Abstract: An engine assembly may include a cylinder head and a fluid control assembly. The cylinder head may include first and second walls opposite one another and extending from a base region defining a cavity. The cylinder head may define a first oil passage extending through an interior surface defining the cavity. The fluid control assembly may include a first oil control valve and a first conduit. The first oil control valve may be fixed to the base region and may define a first port in fluid communication with the first oil passage and a second port in fluid communication with a second oil passage in the cylinder head. The first conduit may extend from the first oil control valve toward the first wall and may provide the fluid communication between the first port of the oil control valve and the first oil passage in the cylinder head.Type: GrantFiled: March 10, 2010Date of Patent: March 4, 2014Assignee: GM Global Technology Operations LLCInventors: Robert Jack Gallon, Alan W. Hayman, Eric C. Douse, William F. Spruit
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Publication number: 20140048033Abstract: A cylinder head is formed by positioning a clad preform including a first and second layer in a casting die cavity with the second layer in communication with the die cavity and the first layer facing outwardly to define a combustion surface. Molten material provided to the die cavity is solidified to form a cast portion metallurgically bonded to the second layer. An aperture of the preform forms a port in fluid communication with a passage of the cast portion. A plurality of dome-shaped preforms may define the combustion chambers of a cylinder head formed by the method. The preform may define a cylinder head face. The first layer may be a steel-based layer, and the second layer and cast portion may be aluminum-based, such that the first layer and combustion surface has higher thermal fatigue strength relative to the cast portion.Type: ApplicationFiled: August 20, 2012Publication date: February 20, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: DEVIN R. HESS, GERALD F. JOHNSON
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Publication number: 20140026837Abstract: A cylinder head (10) for an internal combustion engine, having at least two inlet valves (20) associated with the or each combustion chamber, the inlet valves (20) being supported in the cylinder head (10) with their axes spaced from one another in a first direction, at least two exhaust valves (22) with their axes of reciprocation also spaced from one another in the first direction and at least two receiving formations for operating elements (such as a spark plug (38) and fuel injector (40)), the receiving formations opening into the combustion chamber portion in a central region bounded by the heads of the valves, wherein the receiving formations are inclined to one another so as to diverge generally in the first direction as they extend away from the combustion chamber portion.Type: ApplicationFiled: March 30, 2012Publication date: January 30, 2014Applicant: Llmor Engineering LimitedInventor: Ben Chapman
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Publication number: 20140014058Abstract: A cylinder structure satisfies the following conditions: 12%?d/a?27%, where d is a distance between a cylinder inner surface 12a and an exhaust valve member 20b, and a is a diameter of the exhaust valve member; 40%?c/b?50%, where c is a length of a non-guided portion of the exhaust valve 20 located below a lower end of a sleeve 26 when the exhaust valve 20 is closed, and b is a diameter of a cylinder bore; and 0.5%?e/S?0.8%, where e is a gap between an exhaust valve rod 20a and the sleeve 26 and S is a diameter of the exhaust valve rod 20a.Type: ApplicationFiled: September 30, 2011Publication date: January 16, 2014Inventors: Hideaki Okumura, Kim ihiko Maehata, Yuta Furukawa
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Publication number: 20140011045Abstract: Power generation and transmission components and methods of manufacture are described in which a component is custom designed and produced in discrete layers using computer numerical controlled machining. The design is separated into layers, and the layers are individually machined to impart design features. The layers are then prepared for, and undergo a brazing process in order to build a functionally unitary mechanical component. Components according to the invention include, but are not limited to, engine blocks, cylinder heads, transmission housings, centrifugal pump housings, cylinder blocks, monoblocs (engines in which the cylinder block and cylinder head are formed as one unit), engine crank cases, automotive power train housings and many other large unit or unitary structure components. A commercial method of producing custom components is also described.Type: ApplicationFiled: June 13, 2013Publication date: January 9, 2014Applicant: Aeres MotorsInventors: David A. Slemp, Darren Baurn
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Patent number: 8616173Abstract: An engine assembly may include an engine block, a first piston, a second piston, and a cylinder head. The cylinder head and the engine block may define a first combustion chamber and a second combustion chamber. The cylinder head may define a first intake port and a second intake port. The first intake port may be in communication with the first combustion chamber and may include a first inlet extending through an upper surface of the cylinder head. The second intake port may be in communication with the second combustion chamber and may include a second inlet extending through a side of the cylinder head.Type: GrantFiled: December 8, 2010Date of Patent: December 31, 2013Assignee: GM Global Technology Operations LLCInventor: Alan W. Hayman
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Publication number: 20130340703Abstract: Rib configurations for increasing the structural efficiency of a cylinder head, which relates to a peak combustion pressure capability of the cylinder head. In addition to increasing peak combustion pressure, the rib configurations may also improve sealing of the cylinder head and may improve the durability of an associated cylinder head gasket.Type: ApplicationFiled: June 25, 2012Publication date: December 26, 2013Applicant: CUMMINS INTELLECTUAL PROPERTY, INC.Inventors: Jeffrey D. JONES, Vipin PRABHAKARAN, David M. BARNES
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Publication number: 20130333656Abstract: Intake and exhaust valve seat inserts for aircraft cylinder heads. The inserts are configured for low pressure loss as inlet air and hot exhaust gas passes through the respective valve seat inserts. In an embodiment, the intake and exhaust valve seat inserts may have a plurality of faces or facets, at prescribed angles, in order to minimize pressure loss of gases passing therethrough. In an embodiment, rather than a plurality of faces or facets, the intake valve seat sidewall, and/or the exhaust valve seat sidewall may be a provided in the configuration of a smooth curve approximating a set of selected angles, as if the component were made with a plurality of facets.Type: ApplicationFiled: July 31, 2013Publication date: December 19, 2013Inventor: DAVID ENDRIGO
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Patent number: 8607759Abstract: A process for remanufacturing a cylinder head that includes a worn or damaged rocker arm stand adapted to receive a rocker shaft to which at least one rocker arm is mounted, the steps including machining a channel in a surface of the worn or damaged rocker arm stand, securing an insert into the channel, and machining the insert to form a remanufactured inner facing surface. The remanufactured cylinder head includes at least one rocker arm stand that has a machined channel with a remanufactured insert secured therein, the rocker shaft being disposed adjacent the inner facing surface, not the rocker arm stand.Type: GrantFiled: July 20, 2010Date of Patent: December 17, 2013Assignee: Caterpillar Inc.Inventors: Christopher Bach, Curtis Graham, Trent Simpson, Michael Bridges
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Patent number: 8607758Abstract: A motorcycle engine includes a cylinder block with an axis extending perpendicularly or slightly inclined forwardly. A cylinder head includes an intake port, an exhaust port disposed on a front surface of the cylinder head opposite the intake port, an engine hanger boss, a coolant temperature sensor mounting portion, and a cam chain tensioner lifter. The intake port has an outer opening having a center disposed on a level upward of a center of an outer opening of the exhaust port. The engine hanger boss is provided on either side of the cylinder head, has a centerline that crosses the intake port, and disposed upwardly of an upper end of the outer opening of the exhaust port. The cam chain tensioner lifter and the coolant temperature sensor are in an overlapping position in a side view, downwardly of the engine hanger boss and an open end of the intake port.Type: GrantFiled: August 17, 2009Date of Patent: December 17, 2013Assignee: Honda Motor Co., Ltd.Inventors: Nozomi Okada, Shinsuke Yasui
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Publication number: 20130319381Abstract: An engine assembly includes an engine block defining a first cylinder bore, a cylinder head coupled to the engine block and defining a first intake port and a first exhaust port in communication with the first cylinder bore, a first intake valve located in the first intake port, a first exhaust valve located in the first exhaust port, a first intake runner and a first exhaust gas recirculation passage. The first intake runner defines an intake air supply passage in communication with the first intake port and includes a first restricted flow region forming a venturi. The first exhaust gas recirculation passage is in communication with the first restricted flow region and provides exhaust gas from the engine assembly to the first intake runner at the first restricted flow region.Type: ApplicationFiled: May 30, 2012Publication date: December 5, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Hector Arvizu Dal Piaz
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Patent number: 8596239Abstract: A cylinder head of an internal combustion engine in which a cooling circuit is arranged, suited for a coolant circulation, includes a peripheral duct surrounding an exhaust valve seat and a peripheral duct surrounding an inlet valve seat communicating by means of a connecting duct; the cylinder head including a first coolant inlet, a second coolant inlet, and an outlet for heated coolant, the second inlet communicating with the connecting duct.Type: GrantFiled: January 25, 2011Date of Patent: December 3, 2013Assignee: Société de Motorisations AéronautiquesInventors: Jérôme Escriva, Bruno Blanc, Hervé Pohier, Norbert Lartigue
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Patent number: 8590499Abstract: A pre-assembled camshaft module for attachment to a cylinder head of an internal combustion engine includes a cylinder head cover, at least one camshaft, and bearing elements to which the camshaft is rotatably mounted. The bearing elements are formed as bearing brackets, which are connected by attachment members to the cylinder head cover at individual attachment points, in order to produce the pre-assembled camshaft module. The camshaft module is connectable to the cylinder head at the attachment points by the attachment members.Type: GrantFiled: January 28, 2009Date of Patent: November 26, 2013Assignees: ThyssenKrupp Presta TecCenter AG, Polytec Plastics Germany GmbH & Co. KGInventors: Mario Ilgeroth, Andreas Freytag, Alexander Langer, Henrik Wagner, Stefan Retzlaff, Jorge Manuel Miranda Soares, Norbert Schuling
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Patent number: 8584628Abstract: A cylinder head for an engine is provided. The cylinder head may include an upper cooling jacket including at least a first inlet and a first outlet and a lower cooling jacket including at least a second inlet and a second outlet. The cylinder head may further include a first set of crossover coolant passages including one or more crossover coolant passages fluidly coupled to the upper cooling jacket and the lower cooling jacket and adjacent to one or more combustion chambers.Type: GrantFiled: July 14, 2010Date of Patent: November 19, 2013Assignee: Ford Global Technologies, LLCInventors: Todd Jay Brewer, John Christopher Riegger, Dennis G. Barbier, Jeff D. Fluharty, Jody Michael Slike
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Publication number: 20130298854Abstract: An engine assembly includes an engine structure, an air bleed valve and a hydraulically actuated engine component. The engine structure defines a first oil supply passage. The air bleed valve is in communication with the first oil supply passage and purges air from pressurized oil within the first oil supply passage. The hydraulically actuated engine component is in communication with the oil supply passage.Type: ApplicationFiled: May 14, 2012Publication date: November 14, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Kevin L. Roussey, Patrick J. Tow, Robert L. Jacques
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Patent number: 8567368Abstract: To achieve further reduction in size and weight of a cylinder head in a four-cycle engine having a connection surface formed on the cylinder head to connect a head cover set so as to follow along a plane that is inclined so as to be spaced further away from a cylinder block toward a first side wall. A camshaft holder is integrally formed on a cylinder head so as to protrude from a connection surface as viewed from an axial direction of a camshaft. An intake port is disposed in the first side wall such that an upstream end thereof is disposed at the same position as part of the bearing portion in a direction along an axis of a cylinder bore. An exhaust valve has a stem end disposed at a position protruding from the connection surface as viewed in a direction along the axial direction of a camshaft.Type: GrantFiled: February 27, 2009Date of Patent: October 29, 2013Assignee: Honda Motor Co., Ltd.Inventors: Yukihiro Tsubakino, Shinsuke Yasui, Isao Azumagakito
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Publication number: 20130269647Abstract: A valve seat insert including an annular body disposed about a central axis. The annular body includes a radially inward face that defines an orifice and a radially outward face that is opposite the radially inward face. Additionally, the annular body includes a top face, and a bottom face that is opposite the top face. The valve seat insert further includes a plurality of heat transfer protrusions that extend from the radially outward face of the annular body.Type: ApplicationFiled: April 13, 2012Publication date: October 17, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Ajay Kumar Pandey, Devin R. Hess, Mark A. Osborne
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Publication number: 20130263813Abstract: A cylinder head for an internal combustion engine, in particular a gas engine, comprising at least one main combustion chamber which is provided in the cylinder head and which extends to a combustion chamber opening in a cylinder head base of the cylinder head, wherein a pre-chamber is arranged in the cylinder head, wherein the at least one main combustion chamber is connected to the pre-chamber by way of at least one flow transfer passage.Type: ApplicationFiled: April 5, 2013Publication date: October 10, 2013Applicant: GE Jenbacher GmbH & Co OGInventor: Marcel FOUQUET
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Publication number: 20130255619Abstract: A bonding method includes bonding a pair of members together made of conductive material and having bonding surfaces which are not positioned on the same plane. In the bonding method, the bonding surfaces of the members to be bonded are positioned to face each other, an electric current is supplied from one of the members to be bonded to the other for carrying out resistance heating while the pair of members to be bonded are slid relative to each other. In this way, the bonding surfaces are bonded to each other. Split or partition surfaces that form a hollow passage and extending along the axis of the hollow passage are set as the bonding surfaces which are not on the same plane.Type: ApplicationFiled: December 9, 2011Publication date: October 3, 2013Applicant: NISSAN MOTOR CO., LTD.Inventors: Hideaki Mizuno, Toru Fukami, Kenshi Ushijima
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Patent number: 8544427Abstract: A cooling water passage structure in a cylinder head of an internal combustion engine includes a main cooling water passage extending in the lengthwise direction above combustion chambers. An exhaust-side communication passage communicates the main cooling water passage with a first exhaust-side cooling water passage and with a second exhaust-side cooling water passage. A ridge extends in the lengthwise direction to adjust a flow speed of cooling water to flow through the main cooling water passage and is provided on a first wall surface of a main passage defining portion on a side away from the combustion chambers. An exhaust-side throttle portion extends in a direction substantially perpendicular to the lengthwise direction to reduce a passage cross-sectional area of the exhaust-side communication passage and is provided on a second wall surface of an exhaust-side communication passage defining portion on a side away from the combustion chambers.Type: GrantFiled: March 17, 2011Date of Patent: October 1, 2013Assignee: Honda Motor Co., Ltd.Inventors: Sei Maruyama, Tetsushi Kakuda
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Patent number: 8522738Abstract: A vehicle engine includes: a cylinder head; a cam housing fixed to a top of the cylinder head; a cam cap fixed to a top of the cam housing; a camshaft that is rotatably supported between the cam housing and the cam cap; a cam provided around the camshaft; a rocker arm that is pushed by the cam; a supporting member that supports one end of the rocker arm from below; a cylindrical bore portion for mounting the supporting member; and a base portion for supporting a bottom surface of the supporting member. The bore portion is provided integrally with the cam housing. The base portion is provided integrally with the cylinder head.Type: GrantFiled: December 13, 2010Date of Patent: September 3, 2013Assignee: Otics CorporationInventors: Manabu Shibata, Hitoshi Tsuge
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Patent number: 8522731Abstract: A cast cylinder head 1 of an internal combustion engine to be mounted on a vehicle has an intake-side side wall 2i, an exhaust-side side wall 2e, and opposite end walls 3r and 3f. The walls 2i, 2e, 3r and 3f define a water jacket 8. A first cooling water exit part 11 and a second cooling water exit part 21 both having a solid structure are formed by casting integrally with one of the intake-side side wall 2i and the exhaust-side side wall 2e and with one of the end walls 3r and 3f, respectively. Cooling water exit openings 15,16 or 25,26 opening into the water jacket 8 are drilled selectively in either of the first cooling water exit part 11 and the second cooling water exit part 21 depending on the engine mounting position on the vehicle. Thus the same cylinder head can be used independently of the mounting orientation of the engine on the vehicle.Type: GrantFiled: June 17, 2010Date of Patent: September 3, 2013Assignee: Honda Motor Co., Ltd.Inventors: Kenji Ito, Shinichiro Sugimoto, Kazuhiro Yamamoto
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Publication number: 20130220265Abstract: A cylinder head includes a combustion chamber recess on a lower surface, an exhaust port with downstream and upstream side channels, and downstream and upstream liners respectively inserted into the downstream and upstream side channels. The downstream side channel has an open end at a side surface of the cylinder head and an opposite end sealed by a bottom wall. The upstream side channel has an end open to the combustion chamber recess and an opposite end connected to a side portion of the downstream side channel. The downstream side liner includes a generally tubular member with a linear axis and has an insertion end abutting the bottom wall. The downstream side liner has a connecting hole in a side portion facing the upstream side channel and engaged by the upstream side liner, which also includes a generally tubular member.Type: ApplicationFiled: February 20, 2013Publication date: August 29, 2013Applicant: HONDA MOTOR CO., LTD.Inventor: Honda Motor Co., Ltd.
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Publication number: 20130213341Abstract: An internal combustion engine is disclosed. The engine may have an engine block at least partially defining a cylinder, a liner disposed within the cylinder, and at least a first gas exchange port passing through an annular surface of the liner. The engine may also have a cylinder head connected to the engine block and together with the liner forming a combustion chamber, and at least a second gas exchange port disposed within the cylinder head in fluid communication with the combustion chamber. The engine may additionally have a piston slidably disposed within the liner and having an annular groove formed within an outer surface, and a plurality of piston rings selectively connectable with the annular groove. Each of the plurality of piston rings may be generally L-shaped and have a different axial length. Each of the plurality of piston rings is selected to vary an opening and closing timing of the at least a first gas exchange port.Type: ApplicationFiled: February 16, 2012Publication date: August 22, 2013Inventor: Teoman UZKAN
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Patent number: 8511291Abstract: A blow-by gas collection passage (91) extends in a cylinder block (1) and a cylinder head (3). A crank chamber (61) is connected to an oil separator (92) through the blow-by gas collection passage (91). A cutout portion is formed in an upper end portion of a wall portion (97) of the blow-by gas collection passage (91), and the oil separator (92) contacts an upper surface of the cylinder head (3) to form a connection portion (98) through which the blow-by gas collection passage (91) is connected to a cam chamber (3A). Thus, new air in the cam chamber (3A) flows into the blow-by gas collection passage (91) at an inlet portion of the oil separator (92) through the connection portion (98) to dilute the blow-by gas.Type: GrantFiled: February 28, 2008Date of Patent: August 20, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Satoshi Hirano, Yasuaki Imai
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Publication number: 20130199505Abstract: A cylinder head and internal combustion engine outfitted therewith, in which the cylinder head has a plurality of media passages, at least one of which is for conducting a corrosive medium. Each media passage has a media contact surface for conducting a medium. The cylinder head has a longer service life due to the media contact surface of the at least one media passage for conducting the corrosive medium being formed of a corrosion-resistant material.Type: ApplicationFiled: March 15, 2011Publication date: August 8, 2013Applicant: MAN Diesel & Turbo SEInventors: Ingo Henne, Frank Schiefer
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Patent number: 8499736Abstract: A vehicle engine in which a water temperature sensor can be protected against debris or foreign matter such as earth and sand, flying stones, etc., from impacting the temperature sensor without taking any protective measure for exclusive use. A vehicle engine includes a head portion of the cylinder fitted with a water temperature sensor for detecting water temperature in a water jacket. The head portion of the cylinder is provided on one side thereof with a sensor mounting hole opening directly under an upstream end opening portion of an intake port. The water temperature sensor is mounted in the sensor mounting hole. Further, the head portion of the cylinder is formed with a left-right pair of hanger bosses which are opposed to each other, with the water temperature sensor therebetween. Engine hanger brackets extend from the body frame and are firmly attached to the hanger bosses.Type: GrantFiled: July 23, 2009Date of Patent: August 6, 2013Assignee: Honda Motor Co., Ltd.Inventor: Masafumi Taki