摘要:
A power unit for a motorcycle includes an internal combustion engine provided with a crankcase rotatably supporting a crankshaft with an axial line extending in a vehicle-width direction. An oil pump is mounted on the crankcase with a balancer rotatably supported by the crankcase. Rotational power from the crankshaft is transmitted to a pump driven member provided on a pump shall of the oil pump and to a balancer driven member coaxially interlinked with and connected to the balancer so as to transmit power to the balancer. The power unit is downsized by bringing a balancer and an oil pump into a close arrangement. The pump driven member and the balancer driven member are offset from each other in a vehicle-width direction and are located at such a position so as to at least partially overlap each other as viewed from the side of the vehicle-width direction.
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:
This twin-clutch apparatus for use in a transmission of an engine, including: a hydraulic first disk clutch and second disk clutch that exert a predetermined engagement force by pressure members displaced in an axial direction by the pressure of a supply oil from outside, the first disk clutch and the second disk clutch being coaxially arranged adjacent to each other, in which: clutch plates of the first disk clutch and clutch plates of the second disk clutch are different in thickness from each other.
摘要:
A shift control device for a vehicle transmission is provided in which drive means for making a shift drum pivot is connected to the shift drum, wherein the drive means (112) includes a power source (113) disposed on at one end, in the axial direction, of the shift drum (104), and a transmission shaft (117) to which power from the power source (113) is transmitted at the one end, in the axial direction, of the shift drum (104), power from the transmission shaft (117) being transmitted to the other end, in the axial direction, of the shift drum (104). This enables an internal combustion engine to be made compact while avoiding a concentrated disposition of the drive means on one side, in the axial direction, of the shift drum.
摘要:
A twin clutch type transmission connected to an engine of a vehicle and the like in which an end portion of the main shaft is held in the secure and compact manner to contribute to efficient operation of the transmission. In the twin clutch type transmission, the first and second hydraulic disk clutches are coaxially provided to be adjacent with each other, and the inner and outer shafts of the main shaft as a coaxial dual structure are connected to the respective disk clutches coaxially. The ball bearing fixed to the transmission case with the holder plate pierces the left end portion of the inner shaft so as to be supported, and further to be tightened and fixed to the ball bearing with the locknut screwed with the leading end of the left end portion.