What is the principle and purpose of the rotary joint of the truck crane center?
Through the tubing will be with the kinetic energy of the hydraulic oil delivered to the work of the motor, with the motor will be with the kinetic energy of hydraulic oil into mechanical energy to promote its working parts work!
Is the rapid flow of water through the propeller will be converted into mechanical energy to promote its high-speed operation of the generator power generation
There is no hydraulic principle, is a simple principle of mechanical work!
The mechanical energy of the engine is converted to kinetic energy through the oil pump to the hydraulic oil!
