摘要:
A power unit includes an engine having a crankshaft, and a continuously variable transmission having a drive pulley operatively connected with the crankshaft, a driven pulley, and a belt extended between and wrapped around the drive pulley and the driven pulley. The power unit further includes a transmission input clutch, which allows or interrupts the transmission of a rotational drive force of the crankshaft to the drive pulley, mounted on a drive pulley shaft; and a starter clutch, which allows or interrupts the transmission of a rotational drive force of the driven pulley to the drive wheel, mounted on a driven pulley shaft. The transmission input clutch and the starter clutch are arranged such that a continuously variable transmission is sandwiched therebetween.
摘要:
A power unit includes an engine having a crankshaft, and a continuously variable transmission having a drive pulley operatively connected with the crankshaft, a driven pulley, and a belt extended between and wrapped around the drive pulley and the driven pulley. The power unit further includes a transmission input clutch, which allows or interrupts the transmission of a rotational drive force of the crankshaft to the drive pulley, mounted on a drive pulley shaft; and a starter clutch, which allows or interrupts the transmission of a rotational drive force of the driven pulley to the drive wheel, mounted on a driven pulley shaft. The transmission input clutch and the starter clutch are arranged such that a continuously variable transmission is sandwiched therebetween.
摘要:
A motorcycle is provided with a compact, lightweight power unit that allows for increased maneuverability and increased bank angles while turning. The power unit includes an engine and transmission integrated into a single unit. Often, the balance and maneuverability of a motorcycle are influenced by the heaviest components of the vehicle, such as the engine or power unit. The present advantage is accomplished by providing the power unit with a water pump, oil pump and transmission which are balanced on the motorcycle, limiting the weight variations and protrusions from the motorcycle. This results in allowing the motorcycle to achieve greater bank angles for better turning speeds and maneuverability. It desirable to keep the vehicle center of gravity as low as possible in a motorcycle which is likely to lean steeply around corners. The present arrangement provides the vehicle with a lower center of gravity thereby increasing maneuverability.
摘要:
A motorcycle is provided with a compact, lightweight power unit that allows for increased maneuverability and increased bank angles while turning. The power unit includes an engine and transmission integrated into a single unit. Often, the balance and maneuverability of a motorcycle are influenced by the heaviest components of the vehicle, such as the engine or power unit. The present advantage is accomplished by providing the power unit with a water pump, oil pump and transmission which are balanced on the motorcycle, limiting the weight variations and protrusions from the motorcycle. This results in allowing the motorcycle to achieve greater bank angles for better turning speeds and maneuverability. It desirable to keep the vehicle center of gravity as low as possible in a motorcycle which is likely to lean steeply around corners. The present arrangement provides the vehicle with a lower center of gravity thereby increasing maneuverability.
摘要:
A power unit including an internal combustion engine with a crankshaft and a power transmission system. The power transmission system being equipped with a belt-type continuously variable transmission having a drive shaft and a driven shaft. The belt-type continuously variable transmission being disposed below the axis of the crankshaft wherein the torque from the crankshaft is transmitted to the drive shaft for rotating the crankshaft and the drive shaft rotate in opposite directions. An output shaft, linked and interlocked with the driven shaft via a gear transmission system, is disposed above the continuously variable transmission. A gear transmission mechanism includes a single idle shaft, which has an axis parallel to the crankshaft, and being arranged between the driven shaft and the output shaft for rotating the driven shaft and the output shaft in the same direction.
摘要:
A power unit including an internal combustion engine with a crankshaft and a power transmission system. The power transmission system being equipped with a belt-type continuously variable transmission having a drive shaft and a driven shaft. The belt-type continuously variable transmission being disposed below the axis of the crankshaft wherein the torque from the crankshaft is transmitted to the drive shaft for rotating the crankshaft and the drive shaft rotate in opposite directions. An output shaft, linked and interlocked with the driven shaft via a gear transmission system, is disposed above the continuously variable transmission. A gear transmission mechanism includes a single idle shaft, which has an axis parallel to the crankshaft, and being arranged between the driven shaft and the output shaft for rotating the driven shaft and the output shaft in the same direction.
摘要:
A motorcycle including a power transmission device including a continuously variable transmission having a belt wound around a drive pulley and around a driven pulley and a hydraulically-operated clutch provided on at least one of a drive pulley shaft and a driven pulley shaft and an internal combustion engine wherein a supply of working oil to the clutch and of lubricating oil to a continuously variable transmission is enabled while avoiding a complication of an oil passage configuration and an increase in the diameter of the pulley shaft. A clutch control oil passage directs working oil to a clutch and a lubricating oil passage directs lubricating oil to a continuously variable transmission are provided in the particular pulley shaft on which the clutch is provided, so as to be coaxial with each other and be axially isolated from each other.
摘要:
In a power unit for a vehicle, which is a unit composed of an internal combustion engine with a crankshaft and of a power transmission system equipped with a continuously variable transmission and configured to transmit the torque from the crankshaft to the drive-wheel side while reducing the speed of the torque, to provide a power unit for a vehicle, equipped with two oil pumps and formed, with fewer component parts, into a compact structure. A first oil pump for ejecting lubricant oil and a second oil pump for ejecting oil for at least one of the controlling of the speed change in, and the lubricating of, the continuously variable transmission share a common pump shaft, and are arranged adjacent to each other in the axial direction.
摘要:
A power transmission device for transmitting power of an internal combustion engine of a saddle-ride type vehicle such as a motorcycle to an output side by way of a transmission includes a start clutch for connecting power transmitted from the transmission to an output side when the saddle-ride-type vehicle starts and disconnects the power when the saddle-ride-type vehicle stops, wherein the transmission device can reduce a load applied to the internal combustion engine at the time of starting the saddle-ride-type vehicle and can suppress the increase of a lateral width of the internal combustion engine. The power transmission device includes, in addition to a start clutch, a transmission input clutch for disconnecting power transmitted from an internal combustion engine to a transmission when the internal combustion engine starts. The transmission input clutch is arranged on a drive pulley shaft of a continuously variable transmission.
摘要:
A twin clutch device wherein a second clutch is arranged coaxially and radially inside of a first clutch outer which forms an annular plate portion. One clutch inners of both clutches is arranged between a clutch member which constitutes a portion of the outer of the first and second clutches and an annular plate portion. Lifter pins have axes arranged parallel to a rotary axis of first and second clutches and axially movably penetrate both clutch inners to bring one ends thereof into contact with pressure plates. First and second drive control members are capable of applying control forces to disconnect the first and second clutches against spring forces of first and second clutch springs. A second clutch outer is rotated together with the first clutch outer and is arranged coaxially with the first clutch. A pair of clutch outers are connected in a relatively non-rotatable manner with each other.