Abstract: A combination cooling/filtration device is for cooling and filtering lubricant in an outboard motor. The device includes a body; a lubricant cooler configured to cool the lubricant, the lubricant cooler having an inlet port that receives cooling fluid and an outlet port that discharges the cooling fluid; a filter configured to filter the lubricant; and a lubricant passage extending through the body. The lubricant passage is configured to convey the lubricant from upstream to downstream, and in particular to the lubricant cooler, then to the filter, and then to an engine of the outboard motor. The body is axially elongated from top to bottom, the filter is mounted on the top of the body, and the lubricant cooler is located in the body below the filter.

Abstract: A method, computer system, and computer program product for accessing archived data in a data processing system. The data processing system includes a transactional engine maintaining a first data table and an analytical engine. The method includes first archiving at the analytical engine the first data table, resulting in a first archived data table. Changes applicable to the first archived data table may be archived, wherein the second archiving includes: in case the changes induce a change in the structure of the first archived data table or modify the values of the first data table a second archived data table is created. In case the changes include data having a structure different from the structure of the first archived data table part of the changes that is storable according to the structure of the first archived data table may be inserted in the first archived data table.

Abstract: A method, computer system, and computer program product for accessing archived data in a data processing system. The data processing system includes a transactional engine maintaining a first data table and an analytical engine. The method includes first archiving at the analytical engine the first data table, resulting in a first archived data table. Changes applicable to the first archived data table may be archived, wherein the second archiving includes: in case the changes induce a change in the structure of the first archived data table or modify the values of the first data table a second archived data table is created. In case the changes include data having a structure different from the structure of the first archived data table part of the changes that is storable according to the structure of the first archived data table may be inserted in the first archived data table.

Abstract: A twin cylinder engine, includes a pair of cylinder members mounted to mounting surfaces of a crankcase, and cylinder heads mounted to the cylinder members. The cylinder members are modular components, which may be pre-assembled with components of the valve train as packaged units before the cylinder members are attached to the crankcase. Each cylinder member rotatably supports a cam gear which extends into the crankcase for driving engagement with the crankshaft. The cylinder members may be configured for either side valve-type (“L-head”), or overhead valve-type (“OHV”) engines, and the cylinder members may also be used in single cylinder engines.

Abstract: A twin cylinder engine, includes a pair of cylinder members mounted to mounting surfaces of a crankcase, and cylinder heads mounted to the cylinder members. The cylinder members are modular components, which may be pre-assembled with components of the valve train as packaged units before the cylinder members are attached to the crankcase. Each cylinder member rotatably supports a cam gear which extends into the crankcase for driving engagement with the crankshaft. The cylinder members may be configured for either side valve-type (“L-head”), or overhead valve-type (“OHV”) engines, and the cylinder members may also be used in single cylinder engines.

Abstract: A line of small internal combustion engines, including twin cylinder engines and single cylinder engines. The engines each include a crankcase, and one or more cylinder members attached to the crankcase, the cylinder members being separate components from the crankcase. A number of different crankcases are provided for various types of single and two cylinder engines, the crankcases having common mounting structure to which the cylinder members may be attached. Thus, the manner in which the cylinder members are attached to the crankcases is the same for each of the different types of crankcases. Two different types of cylinder members are provided, one having a side valve or “L-head” valve train, and the other having an overhead cam (“OHV”) valve train. The cylinder members are therefore modular components which may be selectively used in a variety of different types of engines.

Abstract: A line of small internal combustion engines, including twin cylinder engines and single cylinder engines. The engines each include a crankcase, and one or more cylinder members attached to the crankcase, the cylinder members being separate components from the crankcase. A number of different crankcases are provided for various types of single and two cylinder engines, the crankcases having common mounting structure to which the cylinder members may be attached. Thus, the manner in which the cylinder members are attached to the crankcases is the same for each of the different types of crankcases. Two different types of cylinder members are provided, one having a side valve or “L-head” valve train, and the other having an overhead cam (“OHV”) valve train. The cylinder members are therefore modular components which may be selectively used in a variety of different types of engines.

Abstract: A twin cylinder engine, includes a pair of cylinder members mounted to mounting surfaces of a crankcase, and cylinder heads mounted to the cylinder members. The cylinder members are modular components, which may be pre-assembled with components of the valve train as packaged units before the cylinder members are attached to the crankcase. Each cylinder member rotatably supports a cam gear which extends into the crankcase for driving engagement with the crankshaft. The cylinder members may be configured for either side valve-type (“L-head”), or overhead valve-type (“OHV”) engines, and the cylinder members may also be used in single cylinder engines.

Abstract: A drive train for an overhead valve engine, including a cam gear driven by the crankshaft, the cam gear supported for rotation in the cylinder block externally of the cylinder head and having a cam lobe mounted thereon for actuating a pair of rocker arms mounted for rotation in the cylinder head, which in turn actuates intake and exhaust valves in the cylinder head. A first lubrication passageway is provided in the crankcase of the engine to communicate oil, pumped from the oil sump by a combination oil pump and governor assembly driven from the crankshaft, to the upper crankshaft bearing. A second lubrication passageway is provided in the crankshaft and communicates oil from the upper crankshaft bearing to the coupling between the crankshaft and the connecting rod.

Abstract: An open center recoil starter in a small internal combustion engine having a blower housing, a flywheel, and a crankshaft. The open center recoil starter generally includes an annular cover mounted to the blower housing and defining an airway into the blower housing and the engine. The open center recoil starter also includes an annular mechanism for engaging the flywheel, thereby rotating both the flywheel and the crankshaft to start the engine.

Abstract: A drive train for an overhead valve engine, including a cam gear driven by the crankshaft, the cam gear supported for rotation in the cylinder block externally of the cylinder head and having a cam lobe mounted thereon for actuating a pair of rocker arms mounted for rotation in the cylinder head, which in turn actuates intake and exhaust valves in the cylinder head. A first lubrication passageway is provided in the crankcase of the engine to communicate oil, pumped from the oil sump by a combination oil pump and governor assembly driven from the crankshaft, to the upper crankshaft bearing. A second lubrication passageway is provided in the crankshaft and communicates oil from the upper crankshaft bearing to the coupling between the crankshaft and the connecting rod.

Abstract: A centerless recoil starter in a small internal combustion engine having a blower housing, a flywheel, and a crankshaft. The centerless recoil starter generally includes an annular cover mounted to the blower housing and defining an airway into the blower housing and the engine. The centerless recoil starter also includes an annular mechanism for engaging the flywheel, thereby rotating both the flywheel and the crankshaft to start the engine.

Abstract: A drive train for an overhead valve engine, including a cam gear driven by the crankshaft, the cam gear supported for rotation in the cylinder block externally of the cylinder head and having a cam lobe mounted thereon for actuating a pair of rocker arms mounted for rotation in the cylinder head, which in turn actuates intake and exhaust valves in the cylinder head. A first lubrication passageway is provided in the crankcase of the engine to communicate oil, pumped from the oil sump by a combination oil pump and governor assembly driven from the crankshaft, to the upper crankshaft bearing. A second lubrication passageway is provided in the crankshaft and communicates oil from the upper crankshaft bearing to the coupling between the crankshaft and the connecting rod.

Abstract: A drive train for a four stroke, overhead cam engine is provided, comprising a crankshaft, connecting rod, and piston assembly for reciprocating the piston within the cylinder bore of a cylinder block. An internally profiled cam gear is driven around an axis perpendicular to the axis of the cylinder block. A pair of follower arms extend from a pair of rocker arms and engage the cam profile to actuate intake and exhaust valves in the cylinder block. An intermediate gear is driven by the crankshaft at half speed to drive the cam gear, and may also be used to drive an additional device, such as a combination oil pump and governor. The cam follower arms may be disposed in an overlapping crosswise arrangement generally parallel to the cam gear, or may be disposed perpendicular to the cam gear.

Abstract: An overhead cam engine with a drive train including a crankshaft, connecting rod, and piston assembly for reciprocating the piston within the cylinder bore of a cylinder block. A cam ring rotates on the same axis as that along which the piston reciprocates, and has lobes on its upper surface for periodically actuating a pair of rocker arms which open and close intake and exhaust valves located within the cylinder head. The cam ring is driven at half speed by the crankshaft through a gear train arrangement including a timing shaft disposed on an axis parallel to the piston axis with gears at both ends for connecting the crankshaft with the cam ring.

Abstract: An overhead camshaft internal combustion engine having a plastic camshaft which extends through an opening on the cylinder head, the plastic camshaft having a seal ring disposed around the outer surface of the molded plastic camshaft to provide an interface surface for contacting a seal assembly disposed between the engine casing and the molded plastic camshaft. The seal assembly and the seal ring provide a fluid tight seal to prevent leakage of fluid through the cylinder head opening. The seal ring provides a smooth contact surface for the molded plastic camshaft to prevent wear and damage to the seal assembly from the abrasive surface of the molded plastic camshaft. The seal ring also provides a heat sink for dissipating the frictional heat generated by the rotation of the camshaft. In another form, the plastic camshaft includes a powder metal surface formed thereon. The powder metal surface provides the same benefits as the seal ring, namely protection from wear and dissipation of heat.

Abstract: An overhead cam internal combustion engine having a slanted head design which permits the camshaft assembly comprising a camshaft, rocker arms and valve assemblies to be pre-assembled to the head and valve lash to be set off of the main engine assembly line. The slanted head design allows the chain sprocket and timing chain for driving the camshaft to be installed thereon after the head has been assembled to the engine block, accommodating the easy installation of the timing chain. L-shaped rocker arms, mounted on a single shaft, follow a single lobe overhead camshaft. Each rocker arm actuates a valve located on the side of the camshaft opposite that which it follows.