Future construction machinery power source——Mechanical-hydraulic dual power system

A type of confined piston internal combustion mechanical-hydraulic dual power system was put forward. The system integrates the technologies of internal combustion engine and plunger pump, carries out the transition from thermal energy to hydraulic energy, can output mechanical-hydraulic dual power, or only one of them. The system is more suitable for construction machinery with multi jobs, the vehicle whose load rate is very irrational and the waste of braking energy is serious, and so on. The power transmission system based on it has higher efficiency, less volume, lower production and running cost than the traditional.