TRANSMISSION OF FIRE FIGHTING VEHICLE Russian patent published in 2020 - IPC B60K17/34 B60K17/36 

FIELD: transport machine building.

SUBSTANCE: invention relates to automotive industry, namely, to arrangement of vehicle transmission units and units, and can be used in transmission schemes of all-wheel airfield fire-rescue vehicle. Technical problem of the proposed invention consists in creating a transmission scheme which enables the pumping unit (with supply of water foam components) to operate from the engine on the fly, including during maneuvering with low speed and at parking, obtain required acceleration characteristics and high speed of movement, increase in amount of exported quenching agents and intensity of supply of water-foam components. Gearbox is an automatic gearbox (AG) and is integrated with the transfer gearbox by a single body arranged in the middle part of the vehicle. Secondary shaft of transfer gearbox is connected with reduction gears of front and rear axles by means of cardan shafts. Assembly of transmission elements is made with possibility to place engine in rear part of car frame behind second rear axle, wherein said engine further comprises a hydraulic transformer mounted on the crank case, transmitting torque from the engine through the output shaft through the cardan gear to the primary shaft of AG, as well as a power take-off box for transmitting power to consumer pump equipment. Engine, hydraulic converter and power take-off box form integral power unit.

EFFECT: technical result consists in solving said problem and achieved in transmission of fire-rescue vehicle, comprising gearbox, transfer box, cardan gear, cardan shafts, front and two rear axles.

1 cl, 2 dwg