The enter shaft is linked to the motor and pump wheel, and the output shaft is related to 
the operating device and the turbine.
fluid coupling
Hydraulic coupling character is equal to a combination of the two, centrifugal pump and turbine elements nominal moment type coupler include pump wheel and turbine, enter and output shaft, shell and 
auxiliary space, protection overload protection system (fusible plug, integrate particular explosion-evidence explosion-evidence plug), and a lot of other people.
Short clarification for the pump wheel is hydraulic coupling in electrical vitality is transformed to mechanical energy (enter) liquid kinetic energy of the aspects, the turbine is the coupling of the fluid kinetic energy is reworked to mechanical vitality output areas.
What is a cou
pler pump wheel and what is a coupler turbine?
What is the large variation in in between pump wheel and turbine in a hydraulic coupler?
Below is a financial institution of info on the subject china fluid coupling.