Hydraulic coupling introduce

A hydraulic coupling is disclosed which has a primary bladed wheel and a secondary bladed wheel confining a torus-shaped operating space. A blade-free ram space is provided inside the blading of the primary wheel. A delay chamber rotating with the primary wheel is connected by channels respectively to the ram space and to the operating space. In each of the channels, a switchable valve is provided which operates depending on the primary speed. A scoop tube is fixed to the secondary wheel. The scoop tube has inlet opening of the tube in the radially outermost region of the inner space of the coupling. The scoop tube directs operating fluid into the radially inner region of the coupling, from where the fluid can reach the delay chamber through the valve assigned to the channel.

The high performance are handy and posses high tolerance to temperature. The reliable and robust construction of the couplings offer greater efficiency and make them easy to use. And they are mainly used to mount the engine to pump. In a hydraulic coupling, a pair of forces of equal magnitude are exerted in parallel but opposite directions and cause rotation. The working technology of the hydraulic couplings ensures a long working life with lower operating cost and long lasting leak-tightness.