A tractor includes: a vehicle body; an engine bonnet that forms an engine compartment; a first exhaust-gas cleaning device disposed above the engine in the engine compartment and purifies exhaust gas from the engine; and a second exhaust-gas cleaning device disposed behind the engine and purifies the exhaust gas from the engine, the engine compartment including: a back engine compartment portion in which the second exhaust-gas cleaning device is disposed, and a front engine compartment portion disposed further toward a vehicle-body front side than the back engine compartment portion, the engine bonnet including: a back bonnet that covers the back engine compartment portion, and a front bonnet that is configured as a separate body from the back bonnet and covers the front engine compartment portion, and the front bonnet being swingably supported to open and close.

A hybrid vehicle includes an engine that drives first wheel, and a motor that drives second wheel. The hybrid vehicle includes (1) a minute speed launch support mode where the hybrid vehicle is driven only by the motor as a drive source, (2) a sudden launch support mode where the hybrid vehicle is driven by the engine and motor as the drive source, and (3) a smooth launch support mode where the hybrid vehicle is driven only by the motor as the drive source in an early stage, is driven by the engine and motor in a middle stage, and is driven only by the engine in a late stage, and if an operation amount of an acceleration instruction unit is not 0 or is substantially not 0, any one of the support modes is executed according to an operation status of the acceleration instruction unit.

A hydromechanical continuously variable speed transmission is provided. The hydromechanical continuously variable speed transmission can include: the HST 10 in which the planetary gear mechanism 11 is housed in the planetary gear support case 71 mounted on a face of the center section 35 to form the HMT unit 100, the face being on the side opposite to the side on which the HST case 23 is mounted, and the HMT unit 100 is further provided with the housing mounting face 35d for fixing the HMT unit 100 to the housing 91 of the traveling power transmission mechanism 89, the housing mounting face 35d being provided on the center section 35 so as to surround the outer circumference of the mounting face 71a on which the planetary gear support case 71 is mounted.

A hydromechanical continuously variable speed transmission is provided. The hydromechanical continuously variable speed transmission can include: the HST 10 in which the planetary gear mechanism 11 is housed in the planetary gear support case 71 mounted on a face of the center section 35 to form the HMT unit 100, the face being on the side opposite to the side on which the HST case 23 is mounted, and the HMT unit 100 is further provided with the housing mounting face 35d for fixing the HMT unit 100 to the housing 91 of the traveling power transmission mechanism 89, the housing mounting face 35d being provided on the center section 35 so as to surround the outer circumference of the mounting face 71a on which the planetary gear support case 71 is mounted.

A vehicle is operable in a first mode in which vehicle actions are controlled in response to inputs received by an input device carried by the vehicle from an operator while being boarded on the vehicle and in a second mode in which vehicle actions are controlled in response to inputs received from the operator while the operator is proximate the vehicle, but no longer boarded on the vehicle. The vehicle carries a sensor configured to output a sensed input, as sensed by the sensor, from the operator proximate the vehicle, but not boarded on the vehicle. The sensed input is recognized and associated with a vehicle action and control signals are output to the vehicle based on the sensed input to cause the vehicle to carry out the vehicle action.

There is provided a work vehicle including an oil outlet port and a partition part. The oil outlet port opens to a bottom portion in one end side of a transmission case in a vehicle body front-back direction and a vehicle body left-right direction. The oil outlet port takes out a lubricating oil from an interior of the transmission case. The partition part divided an internal space of the transmission case into a first space zone along a sidewall portion of the transmission case, and a second space zone other than the first space zone. The partition part brings the first space zone into a sealed state.

There is provided a work vehicle including a partition wall to keep partition between a first space zone as part of an internal space of the transmission case in which a differential mechanism is located and a second space zone as part of the internal space which is adjacent to the first space zone. An upper space is disposed above the partition wall and configured to allow lubricating oil scooped up from the first space zone by a ring gear to flow in the second space zone. A flow-out path is disposed below the upper space and configured to allow the lubricating oil to flow out of the second space zone to the first space zone.

Systems and apparatuses include a power shift transmission including a plurality of clutch valves, each clutch valve actuatable between an open position providing flow to a corresponding clutch pack and a closed position inhibiting flow to the corresponding clutch pack; and a hydraulic damping rail including a primary rail wall defining a primary rail volume, a rail inlet structured to provide communication of hydraulic fluid between a hydraulic pump and the primary rail volume, and a plurality of rail outlets, each rail outlet corresponding to one of the plurality of clutch valves and structured to provide communication between the primary rail volume and the corresponding one of the plurality of clutch valves.

A work machine includes an exhaust pipe and an outside air mixing cylinder including a guiding cylinder section and an expanding cylinder section, the guiding cylinder section including an exhaust gas guide path to guide exhaust gas from a downstream end of the exhaust pipe in a discharge direction of the exhaust pipe, the expanding cylinder section including a structure with a cross-sectional area of a flow path thereof that becomes larger in diameter to cause a Coanda effect on the exhaust gas so that the exhaust gas follows an inner surface of the expanding cylinder section.

A roof assembly for a work vehicle includes a roof panel having a vertical peak positioned longitudinally between a forward end and a rearward end of the roof panel. In addition, the roof panel includes a forward surface extending from the vertical peak to the forward end of the roof panel, and the roof panel includes a rearward surface extending from the vertical peak to the rearward end of the roof panel. The roof panel also includes a ridge extending around a periphery of the roof panel. The ridge has a first gap positioned at the rearward end of the roof panel, a second gap positioned at the forward end of the roof panel, and a third gap positioned at a first lateral end of the roof panel. In addition, the roof panel does not include a channel extending along the roof panel.