1. The hydraulic system of the working device adopts the fixed differential overflow technology. In this way, when the working device reversing valve is in the process of small opening throttle speed regulation, the excess oil supplied by the oil pump can be returned to the fuel tank without the safety valve, but directly overflows from the differential pressure valve back to the fuel tank, so that the system pressure during the speed regulation process is only higher than the working pressure. High a certain value △P, so as to reduce hydraulic power loss and reduce oil temperature.
2. The hydraulic system and transmission system of the crawler bulldozer engine and working device adopt full power matching technology. The engine can automatically adjust the power output to the transmission system and the hydraulic system of the working device according to the actual working conditions, so as to maximize the use of the engine power to achieve the purpose of energy saving.
3. Hydrostatic transmission technology. The transmission adopts hydrostatic transmission. The whole machine reduces transmission components such as gearbox, torque converter (main clutch), steering clutch, etc., thereby greatly reducing mechanical power loss, and it is easy to achieve full power matching with the engine to achieve energy saving purposes.
