A canister structure for a saddle riding vehicle, including a canister connected with a fuel tank using a connection line, the canister adsorbing fuel vapor generated in the fuel tank, and a purge valve disposed in a path through which the fuel vapor is returned from the canister to an air intake system of an engine, includes an annular canister rubber that fits over an outer cylinder of the canister; a canister stay disposed on a vehicle body side; and an engagement portion disposed on the purge valve. In the canister structure, the canister rubber has, formed on an outer periphery thereof, an anterior-side mounting portion and a posterior-side mounting portion each having an insertion hole in which the canister stay is inserted and a purge valve mounting portion having an engagement portion insertion hole in which the engagement portion of the purge valve is inserted.

A negative pressure air suction type fluid-driven power machine comprises a fluid pressure accumulation bin, a necking port, a flow inlet, a flow guiding cover, a fluid-inlet flow guiding cover, turbine driving blades, a turbine housing, a turbine shaft, a turbine bracket, nozzles surrounding peripheries of the turbine driving blades, a turbine fluid outlet, a fluid negative-pressure flow guiding cover, a fluid negative-pressure outlet, an external driving fluid inlet, an external driving fluid flow guiding cover, and nozzles. The negative pressure air suction type fluid-driven power machine is formed using a gravity acceleration fluid generated by a fluid flowing to a direction opposite to operation of an object as a main driving power source and using a fluid air suction phenomenon as an auxiliary power source, and can replace some effects of steam engines, internal combustion engines, motors and the like.

In an engine, a cylinder block and a cylinder head are connected with a crankcase in a forwardly inclined posture. A dual clutch connects or disconnects a transmission path of power of the engine to a transmission. An actuator chamber houses an actuator that controls a hydraulic pressure of the dual clutch. The actuator chamber is disposed on an upper surface of the cylinder block at a position posterior to the cylinder head and anterior to the crankcase in a vehicle longitudinal direction.

A lubrication system of a power assembly of an electric scooter includes a case duct and a bearing seat duct formed in a case of the power assembly, and a driven gear shaft duct formed in a driven gear shaft of a driven gear. Lubricant flows to the case duct, the driven gear shaft duct, a driven gear bearing seat in the case, the bearing seat duct, a driving bearing seat in the case in sequence. The lubrication system has a short flowing distance of the lubricant to enhance the effects of lubrication and reducing temperature.

An integrated power module of an electric scooter includes a motor unit and a transmission unit. The motor unit includes a motor case, in which a stator, a rotor and a shaft are provided. A board is fixed to an end of the motor case, and a holder is fixed to the board. The transmission unit has a lid connected to the board to form a lubricant chamber. The motor shaft passes through the holder to the lubricant chamber. The transmission unit further includes a transmission shaft, which is connected to the motor shaft through a pair of meshed gears. The motor shaft is provided with a spiral slot to force lubricant in the holder flowing to the lubricant room instead of flowing to the motor unit when the motor shaft is rotating.

Vehicles having the versatility to be used as farm vehicles while also being able to be used as a transportation method, such as a motorcycle, are provided. The vehicles can generally include a three-wheel configuration in which first and second drive wheels are substantially vertically aligned, and the third wheel is offset from the vertically aligned drive wheels. The third wheel can be aligned with the second wheel, or it can be disposed at a location that is between the first and second wheels while still being offset from the vertical alignment. A tool for performing farming actions is also provided. In some instances the tool can be laterally offset from the vertically aligned wheels, located between the drive wheels, while in other instances the tool can be disposed distal of the rear wheel. Many vehicle and tool configurations are disclosed, as are methods for operating the same.

A two-wheeled motor vehicle includes: a vehicle body frame; a rear wheel unit swingably supported on the vehicle body frame; a fuel cell unit supported on the vehicle body frame; a fuel tank extending rearwardly from the fuel cell unit over the rear wheel unit; and a secondary cell that is charged with electric power from the fuel cell unit and disposed below the fuel cell unit and the fuel tank.

A two-wheeled motor vehicle includes: a vehicle body frame; a rear wheel unit swingably supported on the vehicle body frame; a fuel cell unit supported on the vehicle body frame; a fuel tank extending rearwardly from the fuel cell unit over the rear wheel unit; and a secondary cell that is charged with electric power from the fuel cell unit and disposed below the fuel cell unit and the fuel tank.

An engine unit of a motorcycle has a crankcase and an overlying cylinder block. The crankcase has a magnet cover positioned outward of the cylinder block in the vehicle width direction as seen in the front-rear direction. The clutch actuator motor serving as a driving power source for a switching operation of the clutch is disposed inward of the side surface of the magnet cover in the vehicle width direction as seen in the front-rear direction. A part of the clutch actuator motor is positioned over the magnet cover.

An engine unit of a motorcycle has a crankcase and an overlying cylinder block. The crankcase has a magnet cover positioned outward of the cylinder block in the vehicle width direction as seen in the front-rear direction. The clutch actuator motor serving as a driving power source for a switching operation of the clutch is disposed inward of the side surface of the magnet cover in the vehicle width direction as seen in the front-rear direction. A part of the clutch actuator motor is positioned over the magnet cover.