Internal combustion engine for small-sized vehicle

An internal combustion engine for a small-sized vehicle, in which a tension sprocket at one end of a tensioner arm is engaged with a cam chain of a timing and power transmitting mechanism mounted between a crankshaft and a camshaft and in which a gear transmission mechanism having a main shaft and a...

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Bibliographische Detailangaben
Hauptverfasser:	KONO NAOKI, MIZUTANI FUMINORI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CYCLES ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INSTRUMENTATION OR DASHBOARDS FOR VEHICLES INTERNAL-COMBUSTION PISTON ENGINES LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS POWERED PROPULSION OF SLEDGES OR RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES THERMAL INSULATION IN GENERAL TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	An internal combustion engine for a small-sized vehicle, in which a tension sprocket at one end of a tensioner arm is engaged with a cam chain of a timing and power transmitting mechanism mounted between a crankshaft and a camshaft and in which a gear transmission mechanism having a main shaft and a countershaft which are parallel to the crankshaft is housed in a crankcase. When viewed in the direction of the axis of the crankshaft (53), the countershaft (72) is located rearward of the crankshaft (53), the axis of the main shaft (71) is located at a position which is between the crankshaft (53) and the countershaft (72) and above a line interconnecting the crankshaft (53) and the countershaft (72), and a support shaft (96) for pivotably supporting the tensioner arm (95) is located betweenthe axes of the crankshaft (53) and the main shaft (71). The construction reduces the length in the front-rear direction of the internal combustion engine.