Class / Patent application number | Description | Number of patent applications / Date published |
123410740 | Multiple cylinder | 27 |
20080245320 | Water-Cooled Engine and Cylinder Block Thereof - A cylinder block has a cylinder bore and a water jacket provided about the cylinder bore. The cylinder block is divided at the water jacket into a cylinder liner portion and a cylinder outer wall portion. The cylinder liner portion has a wall defining the cylinder bore. The cylinder outer wall portion surrounds the wall of the cylinder liner portion, thereby defining the water jacket between the cylinder outer wall portion and the wall of the cylinder liner portion. The cylinder liner portion includes an upper deck portion integrally formed with the cylinder liner portion. The upper deck portion contacts the cylinder head assembled to the cylinder block. The cylinder outer wall portion has a top surface that functions as a receiving surface that contacts and supports the upper deck portion. | 10-09-2008 |
20090007858 | INTERNAL COMBUSTION ENGINE COOLING SYSTEM - An internal combustion engine has a crankcase, a crankshaft, a cylinder block, at least one piston, a cylinder head assembly, and a cooling system for cooling at least a portion of the engine. The cooling system has a first cooling jacket for cooling a first side of the cylinder block, a second cooling jacket for cooling a second side of the cylinder block, and a cylinder head cooling jacket for cooling the cylinder head assembly. A coolant inlet and a coolant outlet fluidly communicate with the first and second cooling jackets respectively. Coolant flowing in the cooling system flows from the coolant inlet to the first cooling jacket, then to the cylinder head cooling jacket, then to the second cooling jacket, and finally to the coolant outlet. A cylinder block, an engine cooling system, and a method of cooling an engine are also disclosed. | 01-08-2009 |
20090194046 | PARTITION MEMBER FOR COOLING PASSAGE OF INTERNAL COMBUSTION ENGINE, COOLING MECHANISM OF INTERNAL COMBUSTION ENGINE, AND METHOD FOR FORMING THE COOLING MECHANISM - 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 member. The separating wall divides the cooling passage into an inner passage and an outer passage. The inner passage is located close to the cylinder bores, and the outer passage is located outside of the inner passage. The lip member extends from the separating wall toward the opening of the cooling passage in such a manner that, when the partition member is arranged in the cooling passage, the lip member contacts one of the inner surfaces of the cylinder block forming the cooling passage. When the partition member is arranged in the cooling passage, the distal edge portion of the flexible lip member contacts the inner surface due to force produced through flexible shape restoration of the lip member. | 08-06-2009 |
20100089343 | MULTIPLE CYLINDER ENGINE COOLING APPARATUS - A multiple cylinder engine cooling apparatus includes a bottom wall of a cylinder head, a lower end of a spark plug inserting cylindrical wall, a lower end of an inlet port, an exhaust port, and a water jacket. A plurality of combustion chamber forming recesses are formed in the cylinder head to line up in a longitudinal direction parallel to an axial direction of a crank shaft. The spark plug inserting cylindrical wall extends from each recess upward in a direction opposite to a combustion chamber. The inlet port extends from each recess laterally in one direction perpendicular to the longitudinal direction. The exhaust port extends from each recess laterally in the other direction. The water jacket is formed in the cylinder head to cool the bottom wall of the cylinder head, the lower end of the spark plug inserting cylindrical wall, the lower end of the inlet port, and the exhaust port. The water jacket includes a first water jacket portion and a second water jacket portion. Cooling water flows in the first water jacket portion in the lateral direction for each cylinder. The second water jacket portion is connected to the first water jacket portion through a narrow channel and guides the cooling water from an interior of the first water jacket portion upward along the exhaust port. | 04-15-2010 |
20100170456 | SADDLE-RIDE VEHICLE - A saddle-ride vehicle includes an engine with a front cylinder extended forward and diagonally upward from a crankcase. The engine is mounted between a front wheel and a rear wheel. A space gradually vertically extended forward is provided between a fuel tank arranged on the upside of the front cylinder and a front head cover provided to an upper part of the front cylinder. A radiator upstream water passage extended backward from an upper part of a radiator is provided in front of the front cylinder and is arranged in the space. The radiator upstream water passage is covered with a front overhead cover attached to the front cylinder. With this configuration, vehicle body components are not exposed, thereby protecting the vehicle body components. In addition, the appearance of the vehicle is efficiently enhanced. | 07-08-2010 |
20100326379 | Narrow profile horizontally-opposed engine - An internal combustion engine of boxer design that is capable of running on different types of fuel, including but not limited to gasoline, diesel fuel or ethanol, with the fuel being provided to the engine by an interchangeable cylinder cover is disclosed, and with cylinders that are arranged so as to make the engine narrow-profile and thus smaller and more light-weight than other internal combustion engines. | 12-30-2010 |
20110114043 | COOLING STRUCTURE FOR INTERNAL COMBUSTION ENGINE - A height of a spacer which is arranged inside a water jacket formed to surround peripheries of cylinder bores of a cylinder block of an internal combustion engine is made to be lower by a step in an intermediate portion thereof in a cylinder row line direction. Consequently, among end-portion cylinder bores having a lower temperature and being situated at opposite end portions in the cylinder row line direction and intermediate cylinder bores being other than the end-portion cylinder bores and having a higher temperature, a cooling performance of the intermediate cylinder bores is higher than that of the end-portion cylinder bores. Therefore, all the temperatures of the respective cylinder bores can be made uniform. A similar operation effect can be obtained alternatively by making a thickness of the spacer thinner in portions facing the intermediate cylinder bores and thicker in portions facing the end-portion cylinder bores. | 05-19-2011 |
20110132295 | COOLING STRUCTURE FOR INTERNAL COMBUSTION ENGINE - A spacer arranged inside a water jacket which is formed to surround peripheries of cylinder bores in a cylinder block of an internal combustion engine includes support legs extending in an up-and-down direction from a spacer main body part which partitions the water jacket into an upper and lower cooling water passages. The support legs are disposed in opposite end portions in a cylinder row line direction, where the temperatures of the cylinder bores tend to be lower. Accordingly, even if the flow of cooling water is more or less inhibited by the support legs and the cooling effect deteriorates, it is possible to prevent the temperatures of the respective cylinder bores from becoming different by suppressing the influence to a minimum. | 06-09-2011 |
20110214630 | ENGINE BLOCK ASSEMBLY FOR INTERNAL COMBUSTION ENGINE - An engine block assembly for an internal combustion engine comprises a cylinder portion having a plurality of cylinder walls disposed therein. A water jacket, having opposed side walls, extends about the plurality of cylinder walls to define a coolant flow path. A coolant inlet in fluid communication with the water jacket delivers coolant thereto and a coolant outlet in fluid communication with the water jacket removes coolant therefrom. Opposed sealing shoulders extend into the coolant flow path from the water jacket side walls and a longitudinally extending coolant baffle is disposed in the water jacket adjacent to the sealing shoulders. The coolant baffle includes a baffle sealing face configured to engage the opposed sealing shoulders to direct the coolant entering the water jacket in a single direction around the cylinder walls of the cylinder portion. | 09-08-2011 |
20110308486 | INLINE ENGINE HAVING SIDE-MOUNTED HEAT EXCHANGERS - An engine is disclosed. The engine may have an engine block with a front end, a back end opposite the front end in a length direction, a first side, a second side opposite the first side, a top, and a bottom opposite the top. The engine may also have at least one cylinder head connected to the top of the engine block, and a first heat exchanger mounted at the first side of the engine block and configured to receive a flow of raw coolant and a flow of fresh coolant. The engine may further have a second heat exchanger mounted at the first side of the engine block, between the first heat exchanger and the top. The second heat exchanger may be configured to receive a flow of fresh coolant from the first heat exchanger and a flow of combustion air. | 12-22-2011 |
20110315098 | COOLING DEVICE OF WATER-COOLED ENGINE AND METHOD OF MANUFACTURING THE SAME - An intake-side space around intake ports and an exhaust-side lower space around exhaust ports are provided in a main cooling jacket portion. These spaces are connected to each other. In a sub cooling jacket portion, an exhaust-side upper space is provided at a level above the exhaust-side lower space. The main cooling jacket portion and the sub cooling jacket portion are connected to each other via a cylindrical-hole connecting passage extending vertically and separate from each other vertically via a wall portion in another area than the connecting passage. Accordingly, a cooling device of an engine which can restrain the exhaust gas from being cooled too much improperly is provided. | 12-29-2011 |
20120012073 | ENGINE WITH CYLINDER HEAD COOLING - 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. | 01-19-2012 |
20130239915 | Engine Assembly - An engine cylinder head is provided. The engine cylinder head includes a portion of a first combustion chamber, an upper coolant core and a lower coolant core directing heat from the first combustion chamber and including a first coolant passage and a second coolant passage, the first coolant passage and the second coolant passage laying along a lateral axis, at least a portion of the first coolant passage separated from the second coolant passage via first and second walls. | 09-19-2013 |
20140331947 | SYSTEM FOR COOLING AN ENGINE BLOCK CYLINDER BORE BRIDGE - An engine is provided with an open deck cylinder block having an open water jacket that surrounds a plurality of cylinders that are joined together in a Siamese design by a cylinder bore bridge. The engine also includes a cylinder head gasket, and a cylinder head. For the purpose of removing excess heat from the cylinder bore bridge, cooling channels are provided that allow coolant to flow from the engine block water jacket, across the cylinder bore bridge, and into a cylinder head coolant passageway. In addition, coolant is prevented from flowing from the water jacket on one side of the cylinders, across the bore bridge, and into the water jacket on the other side of the cylinders. | 11-13-2014 |
20140345549 | MOTORCYCLE - A motorcycle includes a cylinder body, a cylinder head disposed above the cylinder body, and a plurality of dowel pins configured to position the cylinder body and the cylinder head. The cylinder body includes a plurality of cylinders and a plurality of bolt insertion holes. The cylinder head includes first and second passages configured to flow oil or air therethrough. The cylinder body includes a first communication port in communication with the first passage and a second communication port in communication with the second passage. The first communication port is disposed in a front left region, and the second communication port is disposed in a rear right region. The plurality of dowel pins consist of a first dowel pin fitted into the first communication port and the first passage and a second dowel pin fitted into the second communication port and the second passage. | 11-27-2014 |
20150053155 | HEAD GASKET HAVING VARIABLE AREA COOLANT OPENINGS - An engine assembly is provided herein. The engine assembly includes a head gasket interposing a cylinder block and a cylinder head, the head gasket comprising a first layer in face sharing contact with a portion of a cylinder head attachment surface included in the cylinder block and having a first-layer coolant opening adjacent to two neighboring cylinders and a second layer having a second-layer coolant opening having a smaller cross-sectional area than the first-layer coolant opening. | 02-26-2015 |
20150090203 | ENGINE ASSEMBLY - An engine cylinder head is provided. The engine cylinder head includes a portion of a first combustion chamber, an upper coolant core and a lower coolant core directing heat from the first combustion chamber and including a first coolant passage and a second coolant passage, the first coolant passage and the second coolant passage laying along a lateral axis, at least a portion of the first coolant passage separated from the second coolant passage via first and second walls. | 04-02-2015 |
20150300236 | BORE BRIDGE AND CYLINDER COOLING - An internal combustion engine includes a head gasket positioned between a cylinder block and a cylinder head. The cylinder block has first and second cylinders separated by a block bore bridge, and a block cooling jacket with a first passage and a second passage intersecting a block deck face. The cylinder head has first and second chambers separated by a head bore bridge, and a head cooling jacket with a third passage and a fourth passage intersecting a head deck face. The gasket forms a slot positioned adjacent to at least one of the block bore bridge and the head bore bridge to fluidly connect the first and fourth passages to cool the at least one of the block bore bridge and head bore bridge. | 10-22-2015 |
20150369167 | BORE BRIDGE AND CYLINDER COOLING - An engine has a cylinder head with a deck face defining first and second chambers adjacent to one another and separated by a bore bridge. The body defines a first cooling jacket and a second cooling jacket configured to operate at a lower pressure than the first cooling jacket. The first cooling jacket is positioned substantially between the deck face and the second cooling jacket. The first cooling jacket has a series of passages intersecting the deck face and configured to receive coolant from a cylinder block cooling jacket. The second cooling jacket has an inlet passage intersecting the deck face adjacent to the bore bridge and configured to receive coolant from the cylinder block cooling jacket to cool the bore bridge. | 12-24-2015 |
20160025033 | INTERNAL COMBUSTION ENGINE - An internal combustion engine includes a plurality of cylinders, each of which two intake valves and two exhaust valves, respectively arranged in a valve mount of a cylinder head of the internal combustion engine as well as a coolant distributing chamber and a coolant accumulating chamber being associated to. For each cylinder two coolant ducts are formed in the cylinder head and each is fluidly connected to the corresponding coolant distributing chamber and the corresponding coolant accumulating chamber. A first one of the coolant ducts on a first side extends about a first one of the intake valves and on a second side opposite the first side about a first one of the exhaust valves, and a second one of the coolant ducts extends on the first side about a second one of the intake valves and on the second side about a second one of the exhaust valves. | 01-28-2016 |
20160032814 | BORE BRIDGE AND CYLINDER COOLING - An engine includes a cylinder block having first and second passages intersecting a block face on opposed sides of a bore bridge defining a bore bridge cooling passage. A cylinder head has third and fourth passages intersecting a head face. The first and fourth passages are opposed from one another. A gasket is placed between the block and the head. The gasket adapted to fluidly connect the first and fourth passages via the bore bridge cooling passage, and cover the second passage. | 02-04-2016 |
20160069248 | BORE BRIDGE AND CYLINDER COOLING - An engine includes a cylinder block with first and second saw cuts intersecting a block face on opposed sides of a block bore bridge. A cylinder head has third and fourth saw cuts intersecting a head face on opposed sides of a head bore bridge. A gasket is placed between the block and the head. The gasket defines a cooling passage adapted to fluidly connect the first, second, third and fourth saw cuts and cool the interbore region of the engine. The cooling passage has an inlet and a pair of outlets. | 03-10-2016 |
20160084194 | ENGINE COOLING SYSTEM - A cooling jacket is formed at least in part within the cylinder head mounted on an engine block defining one or more piston cylinders and one or more intake and exhaust ports in communication with each piston cylinder. The cooling jacket includes a first passageway, a second passageway and a turbulence chamber. The first passageway extends from a first flow passage and intersects the turbulence chamber at a first angular position, and the second passageway extends from a second flow passage and intersects the turbulence chamber at a second angular position different from the first angular position. A swirling action is imparted to fluid media passing through the turbulence chamber. | 03-24-2016 |
20160115854 | ENGINE BLOCK ASSEMBLY - An engine block assembly includes an engine block casting including a plurality of cylinder bores disposed in series, each cylinder having a cylinder wall. Outer engine block walls are peripheral to the cylinder walls. A channel is formed between outer peripheral surfaces of the cylinder walls and the outer engine block walls. A coolant passage fluidly connects through the outer block walls to the channel. A water jacket insert includes an upper flange, a strut portion and a lower flange. A plurality of orifices are formed in the strut portion. A compressible seal attached to the lower flange of the water jacket insert, which is assembled into the channel and conforms to a bottom portion of the channel. | 04-28-2016 |
20160123216 | ENGINE COOLING SYSTEM - An engine cooling system for cooling a cylinder head and a cylinder block separately may include a cylinder block having cylinders arranged from a front side to a rear side of an engine with a block water jacket formed therein around the cylinders, a cylinder head fastened to a top side of the cylinder block with a head water jacket formed therein from the front side to the rear side of the engine, a water pump mounted to a front side of the cylinder block for pumping coolant to a front of the block water jacket, and a coolant control valve arranged in a rear side of the cylinder block and the cylinder head to have a first end connected to a rear end of the block water jacket and a second end connected to a rear end of the head water jacket for having the coolant supplied thereto. | 05-05-2016 |
20160186641 | COOLING STRUCTURE OF INTERNAL COMBUSTION ENGINE - A cooling structure of an internal combustion engine includes a cylinder block, an inner-block coolant passage, a cylinder head, and an inner-head coolant passage. In the cylinder block, cylinders are provided in a row in a cylinder row direction. The inner-head coolant passage is provided in the cylinder head and includes a main coolant passage, an upper exhaust side coolant passage, and a lower exhaust side coolant passage. The main coolant passage is provided above combustion chambers and extends in the cylinder row direction so that a coolant flows into the main coolant passage from the inner-block coolant passage at a first end side of the cylinder head in the cylinder row direction and so that the coolant flows out from the main coolant passage at a second end side of the cylinder head opposite to the first end side in the cylinder row direction. | 06-30-2016 |
20160195000 | ENGINE COOLING SYSTEM | 07-07-2016 |