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| Number | Title | Issue Date |
| 7798108 | Water-jacket structure for water-cooled internal combustion engine A water-jacket structure, for a water-cooled internal combustion engine, forms a cylinder block water jacket in a cylinder block so as to surround cylinder bores formed in the cylinder block to make cooling water flow through the cylinder block water jacket into a c... | 09/21/2010 |
| 7644687 | Cooling circuit of internal combustion engine An two-stroke internal combustion engine includes a cooling circuit having at least one passageway on the exhaust side of the engine for cooling the exhaust side of the engine and at least one passageway on the intake side of the engine for cooling at least a portio... | 01/12/2010 |
| 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 |
| 7360512 | Low-thermal-inertia intake ports for port-injected, spark ignition engines and an associated manufacturing method The present invention provides an intake port design that provides a low thermal inertia characteristic, thereby decoupling the surface temperature of the intake port walls from that of the coolant through use of an air gap formed between the intake port and the cyl... | 04/22/2008 |
| 7322320 | Engine cylinder block A cylinder block including a block with two parts, a cylinder liner portion defining an inner wall of a water jacket and a cylinder block body defining an outer wall of the water jacket. The water jacket, which extends around the cylinders, is defined between the cy... | 01/29/2008 |
| 7290506 | Fluid-cooled cylinder liner Particular embodiments of the present invention provide novel fluid-cooled cylinder liners. Preferred liners are annular cylinders containing a plurality of passages, arranged generally parallel to the axis of the cylinders, and integrated between the inner and oute... | 11/06/2007 |
| 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 |
| 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 |
| 7273029 | Cylinder liner and cylinder block A cast iron cylinder liner of the present invention includes a plurality of grooves formed on an outer surface of the cylinder liner. Each of the grooves extends in a circumferential direction of the cylinder liner in a ring or spiral shape, and the grooves divide t... | 09/25/2007 |
| 7255940 | Thermal barrier coatings with high fracture toughness underlayer for improved impact resistance A reduced thermal conductivity thermal barrier coating having improved impact resistance for an underlying substrate of articles that operate at, or are exposed to, high temperatures. This coating comprises an inner high fracture toughness layer nearest to the under... | 08/14/2007 |
| 7255069 | Cylinder sleeve support for an internal combustion engine The disclosed multi-cylinder, poppet-valved engine, has replacement cylinder sleeves larger than the original sleeves, and laterally supported near their upper ends by an aluminum alloy plate having a continuous flange or boss projecting into the cylinder block. The... | 08/14/2007 |
| 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 |
| 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 |
| 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 |
| 7191770 | Insulated cylinder liner for a marine engine An engine is made by providing a layer of material between the outer surface of a cylinder liner and the inner surface of the cylinder opening within an engine block. The material can be a polymer or a ceramic. Polyether ether ketone or polyethylene terephthalate ca... | 03/20/2007 |
| 7156056 | Two-cycle, opposed-piston internal combustion engine In a two-cycle, opposed-piston internal combustion engine with optimized cooling and no engine block, the opposed pistons are coupled to a pair of crankshafts by connecting rods that are subject to substantially tensile forces acting between the pistons and the cran... | 01/02/2007 |
| 7104226 | Cylinder liner cooling structure This invention relates to a cooling structure for cooling a cylinder liner by circulating coolant in a water jacket formed along an outer periphery of the cylinder liner. This cooling structure includes an annular first water reservoir for temporarily storing coolan... | 09/12/2006 |
| 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 |
| 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 |
| 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 |
| 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 |
| 7018727 | Transparent protective layer for a body The invention relates to a transparent protective layer, in particular a scratchproof layer for glass and glass-ceramic, which is able to withstand high temperatures, has a smooth and dense surface, an attractive surface design and is preferably used for coating coo... | 03/28/2006 |
| 7000584 | Thermally insulated cylinder liner An engine is provided with a plurality of cylinders and cylinder liners that are shaped to define a plurality of spaces between the liners and the engine block. These spaces provided an insulative barrier that at least partially restricts the flow of heat from the l... | 02/21/2006 |
| 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 |
| 6947522 | Rotating notched transmission x-ray for multiple focal spots An x-ray source with an x-ray source target are provided. The x-ray source includes an electron source. The x-ray source also includes an x-ray transmission window. The x-ray source also includes an x-ray source target located between the electron source and the win... | 09/20/2005 |
| 6932045 | Cylinder block for an internal combustion engine In a cylinder-block for an internal combustion engine with a plurality of cylinders having longitudinal profiled sections in the form of lateral hollow reinforcement structures and vertical sections in the form of profiled reinforcement structures, in the region of ... | 08/23/2005 |
| 6924040 | Thermal barrier coating systems and materials A ceramic material has particular utility as a thermal insulating or thermal barrier coating on metallic substrates. The ceramic material includes gadolinia and hafnia, preferably forming gadolinia-hafnia. This material exhibits chemical stability, thermal stability... | 08/02/2005 |
| 6920917 | Double-pipe heat exchanger It is an object of the invention to provide an inexpensive double-pipe heat exchanger having high performance and comprising an inner pipe and an outer pipe which constitute a double pipe without adding a heat-transfer facilitating material such as an inner fin. In ... | 07/26/2005 |
| 6920859 | Cylinder liner A cylinder liner that can be accurately positioned and can securely maintain a stable state relative to a base metal of a cylinder block to thereby minimize deformation of the cylinder bore, limit abrasion of a piston and a piston ring, reduce consumption of oil and... | 07/26/2005 |
| 6901891 | Fluid passage structure of internal combustion engine In a fluid passage structure of an internal combustion engine wherein oil flows from an in-block flow passage formed in a cylinder block to an in-head flow passage formed in a cylinder head, a groove that is generally rectangular in cross section is so formed in a t... | 06/07/2005 |
| 6886504 | Engine of reciprocating piston type An engine of reciprocating piston type includes a cylinder block (4) with one or more cylinders (2), each of which receives a respective piston (10) and is defined by a respective cylinder barrel (8), which is integral with the reminder o... | 05/03/2005 |
| 6874451 | Cooling apparatus of an internal combustion engine A cooling apparatus of an internal combustion engine includes an insert that is deformable, and a surface of the insert opposing a cylinder bore wall is close to the cylinder bore wall after the insert is inserted into a water jacket. A cooling apparatus of an inter... | 04/05/2005 |
| 6834625 | Cooling apparatus of an internal combustion engine A cooling apparatus of an internal combustion engine includes a closed deck-type cylinder block and an insert. The cylinder block includes a water jacket and an upper deck including a water hole formed therein. The insert is disposed in the water jacket and inserted... | 12/28/2004 |
| 6729272 | Cylinder head cooling construction for an internal combustion engine Deflecting ribs are provided within a coolant jacket formed in a cylinder head in such a manner as to protrude upwardly from bottom walls for directing the flow of coolant toward exhaust-valve-port side port wall portions The deflecting ribs for deflecting part of t... | 05/04/2004 |
| 6675750 | Cylinder liner The subject invention is a cooling system of an internal combustion engine having a wet-sleeve cylinder liner that improves heat reduction efficiency as compared with traditional cylinder liners. The improved liner has an outer surface with a plurality of... | 01/13/2004 |
| 6575124 | Cylinder block of multi-cylinder engine and process of molding same A cylinder block for multi-cylinder engine includes a cooling water passage provided at a head-side portion of a cast metal inter-bore wall. The cooling water passage includes a plurality of vertically adjoining transverse water passages provided in verti... | 06/10/2003 |
| 6481392 | Internal combustion engine The invention relates to an internal combustion engine comprising a cylinder block with at least one cylinder and at least one intake and exhaust valve per cylinder. A cooling system includes an inlet opening that is formed in the cylinder block and leads... | 11/19/2002 |
| 6470839 | Engine block having improved cooling system An engine block having a cooling system includes a body, a plurality of cylinder bores formed on the body, cylinder liners each coaxially fitted in a corresponding cylinder bore, and at least one coolant channel formed between the cylinder bores, wherein ... | 10/29/2002 |
| 6418886 | Liquid-cooled internal combustion engine with cylinder banks, which tilt toward one another, in particular a V engine A liquid-cooled internal combustion engine has cylinder banks that tilt toward one another, to for a V engine. A coolant, which is fed to the exhaust gas-sided cooling jackets in the cylinder banks, is fed over cylinder heads with cross flow to cooling ja... | 07/16/2002 |
| 6408803 | Liquid cooling system and retrofit for horizontally opposed air cooled piston aircraft engines A cooling system for conversion of air cooled aircraft engines to liquid cooling, including replacement cylinders, light weight, flex tolerant coolant manifolds and cooling system instrumentation for monitoring coolant temperature and pressure. The replac... | 06/25/2002 |
