Principle and structure of hydraulic couplings

The structure of a 1# hwfpeace variable-speed hydraulic coupling can be roughly divided into: the impeller, turbine, working chamber, scoop tube, main oil pump, oil tank, oil inlet chamber, and oil return chamber. 1> The impeller and turbine are bowl-shaped structures with radial blades; they fit together, and the space between them is called the working chamber. 2> The working chamber is connected to the spaces inside the impeller and turbine through gaps around the turbine’s circumference. 3> The oil inlet chamber is connected to these spaces via small holes at the bottom of the impeller. 4> The impeller is connected to the motor, while the turbine is connected to the fan (or water pump). 5> The main oil pump operates through gear drive connected to the main shaft; it pressurizes the oil in the oil tank and divides it into two streams. One stream enters the oil inlet chamber and then passes through the small holes at the bottom of the impeller into the space between the impeller and turbine, while the other stream goes to the various bearings for lubrication. If an auxiliary oil pump is available, it handles the lubrication of the bearings. As the motor rotates, it drives the impeller to spin, and centrifugal force along with the action of the blades creates a rotational torque that causes the turbine blades to rotate as well, thus completing the transmission process. When it is necessary to adjust the output of the fan, the oil pressure in the working chamber can be controlled by adjusting the distance between the opening of the scoop tube and the circumference of the working chamber (since the spaces between the working chamber and the impeller/turbine are identical). Due to centrifugal force, the oil pressure increases as one moves closer to the circumference, resulting in more oil being discharged through the scoop tube. This makes it easy to control the oil pressure in the working chamber; the higher the oil pressure, the greater the torque transmitted from the impeller to the turbine, which in turn means the fan spins faster and produces more power. The oil that is discharged through the scoop tube enters the oil return chamber via openings at its tail, from where it returns to the oil tank, completing one cycle