Water Pump 4. The water pump is a simple centrifugal pump driven by belt. The pump circulates the engine coolant when it is driven by the engine. The water pump uses centrifugal force to send fluid to the outside while it spins, causing fluid to be drawn from the center continuously. The inlet to the pump is located near the center so that fluid returning from the radiator hits the pump vanes. The pump vanes filling the fluid to the outside of the pump, where it can enter the engine. The fluid leaving the pump flows first through the engine block and cylinder head, then into the radiator and finally back to the pump. Water pump flow characteristics: • PUMP SPEED (RPM) WATER FLOW RATE (LPM) 1000 25 6000 95 ENGINE 1.2L BSVI PHASE-2 82
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