Hydrodynamic coupling KSL

pumpfor diesel enginesmachines

HYDRAULIC COUPLING FOR ELECTRIC ENGINES – SPEED VARIATOR – STARTER Transfluid has designed their KSL series variable fill fluid coupling to overcome problems experienced at “start-up” and “speed variation” operation for medium and high power machines driven by electric motors and internal combustion engines. HYDRAULIC COUPLING: WORKING OPERATION Extremely efficient performance is achieved operating the fluid coupling KSL’s very simple and effective principle. Oil, which is the power medium, is pumped from a sump to the hydrodynamic coupling circuit, where it is finally “drained off” through a series of orifice plugs, back into the sump. The “START-UP” principle: By controlling the coupling’s feed pump oil flow to the working circuit by a small A.C. frequency converter, changes occur inside the coupling working circuit that alter the coupling slip characteristics, which softens the “start-up” dramatically. The “VARIABLE SPEED” principle: The same principle used to control the start-up permits the KSL to operate as a variable speed drive, varying the speed between input and output. Its “TORQUE LIMITING” function: Another KSL feature is its ability to limit the torque transmitted, slipping for a time and then dumping its circuit oil, disconnecting the driven machinery. The quick disconnection is possible by the installation of a quick release valve. The key “KSL” features are: soft start variable speed torque limiting