Technical performance characteristics
The aircraft based on a conventional machine model, and its four-bar mechanism has been technologically innovative. Using a special curve type beam a flexible connecting structure adopted between the beam and the beam to form a “variable parameter four-bar mechanism” that changes the length of the rear beam of the beam and the length of the connecting rod with the change of the crank angle. The change law of the torque factor improves the balance of the pumping unit and realizes energy saving.
