A technique for providing a water pumping system suitable for fighting wildfire, flood mediation, sewage transport, and the like is revealed. The system includes an internal combustion engine, a CVT with an input shaft and an output shaft, and a pump with an axial flow impeller. In one variation, multiple impeller stages are used and/or several systems are daisy-chained to provide for suitable delivery of water from its source. In another form, the system is carried by an all-terrain vehicle, side-by-side, or the like, to reach remote areas that need to move water to address a hazardous condition.

A snowmobile has a two-stroke engine having an electronic reverse function so that a crankshaft can be selectively rotated in forward and reverse rotation directions. A gearbox has a first shaft coupled to a countershaft, a second shaft extending parallel to the first shaft, first transmission gears mounted to the first shaft and second transmission gears mounted to the second shaft. The first transmission gears are in constant mesh with the second transmission gears to form high and low gear pairings. A shifter is operable for selectively operating the gearbox in one of a high gear, a low gear and a neutral gear. The engine is selectively operable in the forward and reverse rotation directions while the gearbox is operated in at least one of the high gear, the low gear and the neutral gear.

A snowmobile has a two-stroke engine having an electronic reverse function so that a crankshaft can be selectively rotated in forward and reverse rotation directions. A gearbox has a first shaft coupled to a countershaft, a second shaft extending parallel to the first shaft, first transmission gears mounted to the first shaft and second transmission gears mounted to the second shaft. The first transmission gears are in constant mesh with the second transmission gears to form high and low gear pairings. A shifter is operable for selectively operating the gearbox in one of a high gear, a low gear and a neutral gear. The engine is selectively operable in the forward and reverse rotation directions while the gearbox is operated in at least one of the high gear, the low gear and the neutral gear.

A power transmission device includes a variator, a first oil passage, an electric oil pump provided in the first oil passage, a second oil passage, a switching valve provided at a branch point of the first oil passage and the second oil passage, and a third oil passage. The switching valve switches between two positions, i.e. a first position that causes at least the first oil passage to be in a communicating state, and a second position that causes the second oil passage and the first oil passage on a SEC pulley oil chamber side to be in a state of communicating with each other and causes the third oil passage and the first oil passage on a PRI pulley oil chamber side to be in a state of communicating with each other.

A power transmission device for a vehicle includes a first power transmission path that is provided between an engine and a driving wheel, a second power transmission path that is provided in parallel with the first power transmission path, and an electronic control unit. The electronic control unit changes over a secondary clutch to a one-way mode while releasing a first clutch, when a request is made to change over a power transmission path between the engine and the driving wheel from the first power transmission path to the second power transmission path at a time of a predetermined state. The electronic control unit is configured to engage a second clutch when the secondary clutch is changed over to the one-way mode.

A drive train for a hybrid motor vehicle is disclosed. The drive train includes a drive shaft for introducing a torque produced in an internal combustion engine, a transmission input shaft, which can be coupled to the drive shaft by a first clutch, and a steplessly adjustable variator coupled to the transmission input shaft for converting and transmitting the torque to an output shaft. The drive train also includes an electric machine for introducing an electrically produced torque, wherein the electric machine has a rotor, which can be made to interact with a stator, and the rotor can be coupled to the transmission input shaft by a second clutch. A direct drive stage is provided, which can be coupled to the rotor of the electric machine by a third clutch, for transmitting the torque produced in the electric machine past the variator to the output shaft. The first clutch, the second clutch and the third clutch are arranged radially on the inside in relation to the rotor.

A drive train for a hybrid motor vehicle is disclosed. The drive train includes a drive shaft for introducing a torque produced in an internal combustion engine, a transmission input shaft, which can be coupled to the drive shaft by a first clutch, and a steplessly adjustable variator coupled to the transmission input shaft for converting and transmitting the torque to an output shaft. The drive train also includes an electric machine for introducing an electrically produced torque, wherein the electric machine has a rotor, which can be made to interact with a stator, and the rotor can be coupled to the transmission input shaft by a second clutch. A direct drive stage is provided, which can be coupled to the rotor of the electric machine by a third clutch, for transmitting the torque produced in the electric machine past the variator to the output shaft. The first clutch, the second clutch and the third clutch are arranged radially on the inside in relation to the rotor.

A drive train for a hybrid motor vehicle is disclosed. The drive train includes a drive shaft for introducing a torque produced in an internal combustion engine, a transmission input shaft, which can be coupled to the drive shaft by a first clutch, and a steplessly adjustable variator coupled to the transmission input shaft for converting and transmitting the torque to an output shaft. The drive train also includes an electric machine for introducing an electrically produced torque, wherein the electric machine has a rotor, which can be made to interact with a stator, and the rotor can be coupled to the transmission input shaft by a second clutch. A direct drive stage is provided, which can be coupled to the rotor of the electric machine by a third clutch, for transmitting the torque produced in the electric machine past the variator to the output shaft. The first clutch, the second clutch and the third clutch are arranged radially on the inside in relation to the rotor.

A drive train for a hybrid motor vehicle is disclosed. The drive train includes a drive shaft for introducing a torque produced in an internal combustion engine, a transmission input shaft, which can be coupled to the drive shaft by a first clutch, and a steplessly adjustable variator coupled to the transmission input shaft for converting and transmitting the torque to an output shaft. The drive train also includes an electric machine for introducing an electrically produced torque, wherein the electric machine has a rotor, which can be made to interact with a stator, and the rotor can be coupled to the transmission input shaft by a second clutch. A direct drive stage is provided, which can be coupled to the rotor of the electric machine by a third clutch, for transmitting the torque produced in the electric machine past the variator to the output shaft. The first clutch, the second clutch and the third clutch are arranged radially on the inside in relation to the rotor.

A technique for providing a water pumping system suitable for fighting wildfire, flood mediation, sewage transport, and the like is revealed. The system includes an internal combustion engine, a CVT with an input shaft and an output shaft, and a pump with an axial flow impeller. In one variation, multiple impeller stages are used and/or several systems are daisy-chained to provide for suitable delivery of water from its source. In another form, the system is carried by an all-terrain vehicle, side-by-side, or the like, to reach remote areas that need to move water to address a hazardous condition.