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| Number | Title | Issue Date |
| 8091518 | Cooling passage partition for an internal combustion engine A partition member used in a cylinder block of an internal combustion engine is disclosed. The partition member is arranged in a groove-like cooling passage through which a cooling heat medium flows. The partition member includes a separating wall and a flexible lip... | 01/10/2012 |
| 7438026 | Cylinder block and internal combustion engine In a cylinder block of an internal combustion engine, a water jacket in which coolant is circulated is formed around cylinder bores. In the cylinder block, an introduction passage, through which the coolant is introduced from the outside of the water jacket to the i... | 10/21/2008 |
| 7392771 | Cylinder block and cylinder sleeve, method of producing cylinder block and cylinder sleeve by friction stir welding, and friction stir welding method A cylinder sleeve for being inserted in a cylinder bore defined in a block body of a cylinder block for an internal combustion engine. The cylinder bore includes a first annular recess and a second annular recess, and projecting walls. The cylinder sleeve comprises ... | 07/01/2008 |
| 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 |
| 7367293 | Four-stroke engine A four-stroke engine includes a cylinder block, a cylinder head mounted on the cylinder block, multiple cooling fins formed on the cylinder block and the cylinder head, a combustion chamber and an intake port and exhaust port formed in the cylinder head and in commu... | 05/06/2008 |
| 7331374 | Method and apparatus for assisting removal of sand moldings from castings Disclosed is a method for dislodging a mold from a casting formed within the mold. The mold may be removed from the casting by scoring the mold and applying a force sufficient to cause the mold to fracture and break into pieces. Additionally, the mold may be fractur... | 02/19/2008 |
| 7318396 | Cooling system for a marine propulsion engine A cooling system for a marine engine incorporates first and second thermally responsive valves which are responsive to increases in temperature above first and second temperature thresholds, respectively. The two thermally responsive valves are configured in serial ... | 01/15/2008 |
| 7318404 | Piston engine A piston engine has a crank assembly, a piston assembly, a crank case assembly and a cylinder head assembly. The crank assembly has a central axle, two counterweight blocks and a crank axle. The central axle has two connecting segments and two flanges. The flanges a... | 01/15/2008 |
| 7293538 | Overhead camshaft drive assembly A variable timing camshaft drive assembly for an internal combustion engine utilizes a single cam phaser, driven by an engine crankshaft, capable of operating multiple camshafts carried on multiple banks of an engine. The cam phaser is carried on a hub extending fro... | 11/13/2007 |
| 7287493 | Internal combustion engine with hybrid cooling system An internal combustion engine that includes individually-cooled cylinder assemblies. Direct raw-water cooling is provided for the engine's intercooler, oil cooler, and heat exchanger, which is used for the purpose of cooling a fresh water coolant circulating individ... | 10/30/2007 |
| 7278381 | Cooling structure of cylinder block A cooling structure for uniformly cooling a bore wall of a cylinder block using a cooling medium, the bore wall surrounding plural bore regions, includes a water jacket portion which is provided so as to surround an entire outer periphery of the bore wall, and which... | 10/09/2007 |
| 7278380 | Cooling structure of cylinder block A cooling structure for uniformly cooling a bore wall of a cylinder block using a cooling medium, the bore wall surrounding plural bore regions, includes a water jacket portion which is provided so as to surround an entire outer periphery of the bore wall, and which... | 10/09/2007 |
| 7249556 | Compressor with fortified piston channel A compressor is disclosed generally comprising a cylinder head mounted to a cylinder block having a cooling chamber and a piston channel via a bolt. A piston is disposed in the piston channel and has a contact portion that contacts the channel wall, which is integra... | 07/31/2007 |
| 7249578 | Cylinder head gasket for use in an internal combustion engine and internal combustion engine equipped therewith A combustion engine includes a cylinder head and a cylinder crankcase having a cylinder bore and a coolant duct formed therein. The coolant duct is disposed adjacent the cylinder bore and is a cooling system component. A cylinder head gasket is provided between the ... | 07/31/2007 |
| 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 |
| 7237542 | Internal combustion engine The invention concerns a combustion engine comprising a cylinder and a piston which is displaceably guided in the cylinder, the piston having a piston head facing a combustion chamber and being coupled to a crankshaft via a connecting rod, wherein a second piston wh... | 07/03/2007 |
| 7234422 | Engine cooling method and apparatus The present invention provides an engine cooling method and apparatus. The engine cooling apparatus includes a cylinder block having a cylinder head mounted thereto. The cylinder block defines an inlet passage and a block jacket in fluid communication with the inlet... | 06/26/2007 |
| 7225766 | Engine cylinder cooling jacket A coolant jacket for an engine cylinder bank having longitudinally aligned cylinders includes upper, lower and side walls defining two inlet flow galleries extending along the intake and exhaust sides of the cylinder bank and communicating with the upper ends of the... | 06/05/2007 |
| 7216612 | Internal combustion engine having cylinder formed with water jacket and vehicle provided with the same An internal combustion engine includes a cylinder head, a cylinder having an opposed surface opposed to the cylinder head and including a water jacket, which is concave in an axial direction of the cylinder, and a piston provided in the cylinder. An oil ring is prov... | 05/15/2007 |
| 7216611 | Cooling structure of cylinder block A cooling structure of a cylinder block includes a water jacket portion which is provided so as to surround an entire outer periphery of the bore wall; a water jacket spacer which is inserted in the water jacket portion; and a gasket which is provided in an upper po... | 05/15/2007 |
| 7171928 | Cylinder block for internal combustion engine A cylinder block for an internal combustion engine is formed with a knock sensor mounting boss formed on a block side wall, and designed to support an engine knock sensor. The cylinder block further includes a tubular rib projecting from the block side wall, extendi... | 02/06/2007 |
| 7162991 | Lightweight four-stroke engine A lightweight, four stroke engine includes a crankcase enclosure and at least one piston assembly disposed within the crankcase enclosure. The piston assembly cooperates with the crankcase enclosure to provide an internal pressure to the crankcase enclosure which va... | 01/16/2007 |
| 7137363 | Cooling structure of cylinder block A cooling structure of a cylinder block includes a water jacket portion which is provided so as to surround an entire outer periphery of the bore wall; a water jacket spacer which is inserted in the water jacket portion; and a gasket which is provided in an upper po... | 11/21/2006 |
| 7114469 | Cooling system for a marine propulsion engine A cooling system for a marine engine divides a flow of cooling water into first and second streams downstream of a pump. The first stream flows through a first cooling system which is controlled by a pressure sensitive valve. The second stream flows through a second... | 10/03/2006 |
| 7107954 | Internal combustion engine having thermal storage device An engine is arranged in such a way that while the engine is running, cooling fluid flows along a flow path that goes into a cylinder block (12) from an inlet (12b) at one end side of the engine main body (10), goes around the first cylin... | 09/19/2006 |
| 7086355 | Cylinder head structure of engine Head cooling passages are formed around intake ports and exhaust ports provided in a cylinder head, and a flow control member which controls the volume of cooling medium flowing toward the intake ports to be larger than the volume of cooling medium flowing toward th... | 08/08/2006 |
| 7086356 | Engine cooling structure To simplify a coolant piping around an engine in an engine cooling structure, which has a pump mounted on a crankcase for circulating a coolant between cylinder and head jackets. A crankcase has coolant supply passages for guiding a coolant from a pump and coolant r... | 08/08/2006 |
| 7082908 | Cooling structure of cylinder block A cooling structure of a cylinder block includes a water jacket portion which is provided so as to surround an entire outer periphery of a bore wall; and a water jacket spacer which is inserted in the water jacket portion. A foreign matter collecting mechanism which... | 08/01/2006 |
| 7080612 | Cylinder block for internal combustion engine A cylinder block for an internal combustion engine has a water jacket formed between cylindrically configured cylinder walls and a jacket sidewall. The cylinder walls is arranged to slideably retain pistons therein. The jacket sidewall is disposed around an external... | 07/25/2006 |
| 7077079 | Cylinder block of internal combustion engine A reinforcing structure is integrally formed on a front wall of a cylinder block of shallow water jacket type. The reinforcing structure comprises mutually crossing vertical and lateral ribs. The vertical rib extends vertically between upper and lower deck portions ... | 07/18/2006 |
| 7069882 | Water-cooled engine In a water-cooled multi-cylinder vertical engine for an outboard engine system, cooling water having passed through an exhaust-manifold cooling water jacket for cooling an exhaust passage within an engine room is supplied to a cylinder-block cooling water jacket pro... | 07/04/2006 |
| 7069898 | Liquid-cooled engine To simplify the connection of a cylinder barrel and a cylinder head to, a crankcase and to reduce the weight of an engine. A liquid-cooled engine is provided with the crankcase wherein a cylinder barrel having a water jacket on the cylinder side for cooling is conne... | 07/04/2006 |
| 7055485 | Monoblock internal combustion engine An internal combustion engine includes a cylinder block journaling a crankshaft driven to rotate by a reciprocal piston, and a cylinder head having intake and exhaust passages for delivering a combustible fuel-air mixture to drive the piston and for exhausting the c... | 06/06/2006 |
| 7056170 | Water-cooled vertical engine and outboard motor equipped therewith A water-cooled vertical engine includes a cylinder block cooling water jacket formed in a cylinder block and a cylinder head cooling water jacket formed in a cylinder head, the jackets being substantially independent. Cooling water from a cooling water pump is suppl... | 06/06/2006 |
| 7047915 | Engine cooling device In a cooling unit for an engine comprising a cylinder block 1 having a water jacket 4 which opens into the surface of the cylinder block 1 and which circulates a cooling water in surrounding relationship with a cylinder bore, and a gasket 11 | 05/23/2006 |
| 7044088 | Multi-cylinder engine and a method for alternatively producing multi-cylinder engines A multi-cylinder engine comprises a cylinder block (1) provided with a side water passage (3) oriented in a front and rear direction and passing by each of cylinder walls 12 so as to introduce cooling water from a radiator into a cylinder jacket... | 05/16/2006 |
| 6990943 | Cylinder block of an engine A cylinder block for constituting an engine such as a diesel engine, comprises a cylinder portion (31) housing a piston (33); a curved skirt portion (32) covering a crankshaft (25); and ribs (61,62) formed on the inside of the skir... | 01/31/2006 |
| 6976466 | Cylinder block and crankcase for a liquid-cooled internal-combustion engine A cylinder block and crankcase for a liquid-cooled internal-combustion engine is to be constructed by composite casting, a magnesium case being cast around an aluminum power unit block. The cylinder block and crankcase is conceived such that the aluminum power unit ... | 12/20/2005 |
| 6973907 | Cylinder block for internal-combustion engine In a cylinder block for an internal-combustion engine, a cap-mounting bulk portion is connected with both first and second side walls of a crankcase formed below a lower deck. Each of first and second bulk connection portions connecting the first and second side wal... | 12/13/2005 |
| 6962131 | Water cooling device of vertical multi-cylinder engine A water cooling device of a vertical multi-cylinder engine includes a cylinder block (1) one side wall of which is provided with a side water passage (3) running along a longitudinal direction of the cylinder block (1). The cylinder block (1 | 11/08/2005 |
