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| Number | Title | Issue Date |
| 7367328 | Four-cycle engine and motorcycle comprising four-cycle engine A four-cycle engine including an engine case configured to accommodate a crankshaft; a pump configured to suction air from an inner space of the engine case; and an air suction passage through which the inner space inner space of the engine case and the pump communi... | 05/06/2008 |
| 7198021 | Powertrain assembly including modular transmission A powertrain assembly having an improved engine configuration includes an engine and a transmission incorporated in a crankcase of the engine. The engine also comprises an oil pump and a water pump. The transmission is a cartridge-type shift drum transmission, which... | 04/03/2007 |
| 7100544 | Pneumatic cone clutch fan drive having threaded attachment method for drive shaft of clutch to hub mounting An on/off clutch assembly is disclosed having a simplified method for attaching the drive shaft to the hub portion of the drive pulley. The rotating shaft is formed with an integral external threaded portion that is designed to mate with a corresponding internal thr... | 09/05/2006 |
| 6945213 | Cylinder block for multicylinder engine A cylinder block of a multicylinder engine, having a cylinder main body in which multiple cylinder bores are provided in parallel in an axial direction of a crankshaft, and a crankcase having plural journal walls. The crankcase is integrally provided with the cylind... | 09/20/2005 |
| 5800902 | Metal die cast article with reinforcing insert A stamped, steel insert for use in metal die cast articles. The insert includes first and second interconnected stamped steel insert halves spaced from one another at certain locations to define a void. Openings communicating with the void extend through ... | 09/01/1998 |
| 5704770 | Air passage insert for oil fill spout An air passage insert for an oil fill spout disposed on a side of an oil crankcase which includes an air communication passageway having a first end thereof disposed within an interior portion of such oil crankcase at a position above an oil full level an... | 01/06/1998 |
| 4465030 | Transmission having a vacuum ventilation control A transmission includes a housing having the interior thereof connected for fluid communication with a vacuum source, such as an engine manifold. A check valve and regulator valve are disposed between the transmission housing and the vacuum source. The ch... | 08/14/1984 |
| 4289456 | Underwater pump An underwater pump which comprises an engine received in liquidtightness in a capsule, and wherein the suction pipe and exhaust pipe of the engine are each open at one end on the surface of the wafer. The exhaust pipe is cooled by the surrounding water. A... | 09/15/1981 |
| 4162662 | Two-stroke internal combustion engines The cylinders of a supercharged two-stroke internal combustion engine have valves, intake and exhaust pipes and a cylinder head constructed for air to be directed from the intake pipe toward the piston along the wall of the cylinders upon opening of the v... | 07/31/1979 |
| 4041924 | Reciprocating internal combustion engine An internal combustion engine comprises a cylinder having a horizontal axis, one end of the cylinder being formed as a combustion chamber and the other end opening into a crankcase receiving a lubricating atmosphere. A piston slidable in the cylinder has ... | 08/16/1977 |
