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| Number | Title | Issue Date |
| 8151743 | Cooling channels in the cylinder head of an internal combustion engine In a method for casting a cylinder head of a piston engine in a region of cooling channels for valve seat rings, a separate core is provided for defining cooling channels, and the cooling channel core is mounted in a bottom plate of a casting mold at various points ... | 04/10/2012 |
| 8146543 | Cylinder head for an internal combustion engine A cylinder head for an internal combustion engine has at least two cylinders, each cylinder having an outlet opening for discharging the exhaust gases out of the cylinder, an assembly end side for connection to a cylinder block of the engine, an exhaust-gas line adj... | 04/03/2012 |
| 8146544 | Engine cylinder head cooling features and method of forming A method of forming a cylinder head includes casting the cylinder head to include an integral cast-in exhaust manifold. The integral cast-in exhaust manifold defines an intermediate exhaust gas passage in fluid communication with exhaust ports and an exhaust gas out... | 04/03/2012 |
| 8082894 | Cylinder head having coolant flow guide device The invention relates to a cylinder head (1) for a liquid-cooled internal combustion engine with several cylinders, comprising at least one intake port (5) and at least two exhaust ports (4) per cylinder (1), at least one first cooling ch... | 12/27/2011 |
| 8051810 | Coolant passage within a cylinder head of an internal combustion engine A cylinder head having a coolant passage therein includes a coolant inlet, an exhaust valve seat portion, intake valve seat portion, and a spark plug mounting portion formed centrally in the cylinder head, wherein a guide rib is formed close to the coolant inlet for... | 11/08/2011 |
| 8001935 | Cylinder head with reinforcement The invention relates to a cylinder head (1) of an at least one-cylinder internal combustion engine with direction injection of a motor vehicle with a flame deck (2) and with an oil deck (3). An intermediate deck (4) is situated between t... | 08/23/2011 |
| 7980206 | Cooling water passage structure of cylinder head In an internal combustion engine, one end of a cylinder head (1) in a longitudinal direction is provided with a cooling water inflow port (19) leading to the inside of the cylinder head (1), while the other end of the cylinder head (1) in... | 07/19/2011 |
| 7770548 | Cooling structure of cylinder head A coolant passage in a cylinder head of a multi-cylinder internal combustion engine is divided into an intake-side passage below intake ports and extending in a cylinder arranging direction, and an exhaust-side passage including plural exhaust-side lateral passages ... | 08/10/2010 |
| 7743741 | Fuel injection engine and motorcycle comprising fuel injection engine An air fuel injection engine including an air-intake passage configured to guide air taken in from outside to a combustion chamber formed by a cylinder block and a cylinder head, a fuel injector configured to inject fuel to an interior of the air-intake passage, and... | 06/29/2010 |
| 7694656 | Cylinder head for rotary valve internal combustion engine A cylinder head (3) for an axial flow rotary valve (1). The head comprises a bore (2) having an axis and adapted to house an axial flow rotary valve (1), a window (8) in the bore through which at least one port (12, 13) in t... | 04/13/2010 |
| 7647901 | Engine water jacket for water planing boat An engine for a planing-type boat can have a water jacket, which is provided in a main body of the engine and which is supplied with cooling water for cooling the engine. The water jacket can include a ceiling with its rearward portion higher than its forward portio... | 01/19/2010 |
| 7640898 | Water-cooled internal combustion engine A water-cooled internal combustion engine has a cylinder head 21 provided with a cylinder head water jacket Jh through which cooling water flows. The cylinder head water jacket Jh includes a combustion chamber water jacket 70 surr... | 01/05/2010 |
| 7484479 | Water-cooled internal combustion engine A water-cooled internal combustion engine E is provided with a cylinder block water jacket Jb, a cylinder head water jacket Jh, and an exhaust manifold passage 38 in which exhaust gas discharged from combustion chambers 26 through... | 02/03/2009 |
| 7430994 | Cylinder head and combustion engine comprising a cylinder head A cylinder head (1) for an internal combustion engine, the cylinder head (1) having a top face (1a), a bottom face (1b) arranged to be connected to a cylinder block, a lateral exhaust flange face (1c) arranged ... | 10/07/2008 |
| RE40500 | Internal combustion engine Improved internal combustion engine, particularly, an improved two-stroke, diesel aircraft engine. The invention includes a new wrist pin/connecting rod connection, a new cooling system for fuel injectors, a new cylinder head cooling arrangement, a new cooling jacke... | 09/16/2008 |
| 7367294 | Cylinder head with integral tuned exhaust manifold Provided is a cylinder head including a head casting defining a plurality of exhaust ports. A tuned exhaust manifold is internally defined by the head casting. The tuned exhaust manifold includes a plurality of exhaust runners in communication with the plurality of ... | 05/06/2008 |
| 7353783 | Exhaust gas recirculation device for engine An exhaust gas recirculation device for an engine having a cylinder head with a suction port and an exhaust port, provided with a mechanism for recirculating a portion of exhaust gas to the suction side of the cylinder head, comprises a connection hole is opened thr... | 04/08/2008 |
| 7278382 | Water-cooled two-cycle engine A cooling structure of a water-cooled two-cycle parallel multicylinder engine includes: an exhaust port in a cylinder block; an air intake port disposed in a crankcase below the exhaust port; a water pump disposed in the crankcase in an opposite side of the exhaust ... | 10/09/2007 |
| 7270091 | Cooling water passage structure for an engine A pair of exhaust ports (4, 4) have flat portions (9, 9) formed on respective inner peripheral surfaces thereof and facing in directions opposite to each other. An intervening cooling water passage (14) is formed between the flat portions (9,... | 09/18/2007 |
| 7240644 | Internal combustion engine with cylinder head having directed cooling An internal combustion engine cylinder head unit includes a number of gas flow ports extending upwardly from a fire deck. A common coolant passage extends between adjacent ones of the gas flow ports. A first coolant flow director includes a flow splitter extending d... | 07/10/2007 |
| 7225767 | Conversion of an air-cooled engine to liquid cooling In some aspects of the invention the invention will relate to conversion of an existing VW air cooled engine to liquid cooling, and in still further aspects it will relate to the design of a water jacket to maximize heat rejection of a combustion chamber and piston ... | 06/05/2007 |
| 7191740 | Internal combustion engine A cooling block forming a top wall of a combustion chamber of an internal combustion engine is formed by layering, from the outside to the inside, a casing, an upper layer block, a middle layer block, and a lower layer block. Labyrinth-shaped cooling water passages ... | 03/20/2007 |
| 7188589 | Direct injection internal combustion engine In a direct injection internal combustion engine, a fuel injection valve and a spark plug of adjacent cylinders are inclined at different angles from each other in directions perpendicular to a cylinder arrangement direction in which the cylinders are arranged. Besi... | 03/13/2007 |
| 7128028 | Water-cooled cylinder head for a multicylinder internal-combustion engine A water-cooled cylinder head for a multicylinder internal-combustion engine, has a cylinder head housing which has charge cycle ducts, passage bores for receiving cylinder head screws, valve stem guides for inlet and outlet valves controlling the charge cycle ducts,... | 10/31/2006 |
| 7128029 | Water-cooled cylinder head for a multicylinder internal-combustion engine A water-cooled cylinder head is provided for a multicylinder internal-combustion engine having two inlet and outlet valves per cylinder. The cylinder head has a cylinder head cooling space with inflow and outflow openings for the coolant which is integrated in the c... | 10/31/2006 |
| 7100545 | Cylinder head for a water-cooled internal combustion piston engine having inner reinforcement A cylinder head for a water-cooled, multi-cylinder piston internal combustion engine comprises a lower wall and an upper wall enclosing a cavity. A well extends into the cavity for receiving a fuel injector and/or an ignition device. An intake port and/or an exhaust... | 09/05/2006 |
| 7086357 | Cylinder head with improved heat transfer and valve seat cooling An improvement to a diesel engine cylinder head disclosed in U.S. Pat. No. 4,860,700, wherein the improvement comprises any of: a by-pass opening formed in partition walls thereof; a spine density of less than about five spines per square inch; spacing an inner cham... | 08/08/2006 |
| 7069884 | Internal combustion engine An internal combustion engine is provided in which an exhaust port communicating with a combustion chamber formed in a cylinder head is formed from independent exhaust ports, which are positioned on the upstream side, and a grouped exhaust port, in which the plurali... | 07/04/2006 |
| 7069885 | Cylinder head A cooling water pipe is deformed so as to have outlet openings respectively placed in a position around a fuel injection nozzle and in a position between ports, and the cooling water pipe is inserted to be placed inside the cylinder head. Thereby, the position aroun... | 07/04/2006 |
| 7051685 | Cylinder head with integrated exhaust manifold A cylinder head for an internal combustion engine (ICE) includes a lower cooling jacket, an upper cooling jacket and an exhaust manifold disposed therebetween. The exhaust manifold enables exhaust of combustion gas from cylinders of the ICE. The lower cooling jacket... | 05/30/2006 |
| 7044089 | Cylinder head structure of engine In a cylinder head structure of a multi-cylinder engine, a head-side water jacket is provided in the cylinder head, a lateral rib extending in the engine width direction is provided at an upper face of the portion located between cylinders of bottom deck, the latera... | 05/16/2006 |
| 6997144 | Cylinder head structure for an internal combustion engine A cylinder head structure for an internal combustion engine that is disposed on the upper surface of a cylinder body in which a plurality of cylinders are arranged in the lengthwise direction thereof, and that has an exhaust port, an intake port and a fuel injector ... | 02/14/2006 |
| 6981473 | Cylinder head for an internal combustion engine A cylinder head, for an internal combustion engine, enhances engine efficiency while ensuring favorable coolant flow. The cylinder head includes a main casting body 41 having a hollow water jacket formed therein, to allow coolant flow therethrough. The main c... | 01/03/2006 |
| 6973897 | Cooled cylinder head for a reciprocating engine The invention relates to a cylinder head comprising a water jacket that is delimited by a flame deck and an oil deck in a water-cooled reciprocating engine with cylinders that are arranged in series, each of said cylinders having at least one intake valve comprising... | 12/13/2005 |
| 6928964 | Cylinder head for a liquid-cooled multi-cylinder internal combustion engine A cylinder head for a liquid-cooled multi-cylinder internal combustion engine, with a cooling chamber configuration adjacent to a fire deck, which is partitioned by an intermediary deck essentially parallel to the fire deck into a lower cooling chamber in the direct... | 08/16/2005 |
| 6883472 | Cylinder head for a water-cooled multi-cylinder internal-combustion engine A cylinder head for a water-cooled multi-cylinder internal-combustion engine has two intake valves and outlet valves per cylinder. A cylinder head cooling chamber has inflow and outflow openings for coolant as well as a receiving opening for a spark plug. The receiv... | 04/26/2005 |
| 6827049 | Water jacket for cylinder head The water jacket includes at least two exhaust ports configured to exhaust combusted gases from a cylinder. The water jacket also defines a lower path, an higher path, and a central path. The higher path is configured for circulating cooling fluid above the at least... | 12/07/2004 |
| 6817322 | Cylinder head A cooling chamber for a cylinder head including a floor portion, a ceiling portion, and sidewall portions extending between the floor portion and ceiling portion. The cooling chamber may also include at least one exhaust port conduit extending through the cooling ch... | 11/16/2004 |
| 6799540 | Multi cylinder internal combustion engine comprising a cylinder head internally defining exhaust passages In a multi cylinder internal combustion engine comprising a cylinder head internally defining exhaust passages and a converging area into which the exhaust passages converge, an upper water jacket and a lower water jacket are formed above and below the exhaust passa... | 10/05/2004 |
| 6792899 | Method and apparatus for active control of combustion rate through modulation of heat transfer from the combustion chamber wall The flame propagation rate resulting from a combustion event in the combustion chamber of an internal combustion engine is controlled by modulation of the heat transfer from the combustion flame to the combustion chamber walls. In one embodiment, heat transfer from ... | 09/21/2004 |
