.
1 Motor Pump
Introduction:
widely used in automobile engines centrifugal pump. Basic structure of the pump housing lands or belt, and the water pump shaft bearing or shaft bearing, and the pump impeller seal means components constitution.
Principle:
It is then driven by the engine water pump bearings and rotating impeller, the coolant water pump is driven with the rotation of the impeller, the centrifugal force thrown towards the the edge of the water pump housing, while certain pressure, and then flows out from water or a waterway. At the center of the impeller of the cooling liquid is thrown off and the pressure reduced, the cooling liquid in the tank by the pressure differential and the center of the impeller of the pump inlet is sucked into the impeller through the pipes, Reciprocating circulating cooling fluid. Of
The water pump shaft support bearing lubricated with grease, thus to prevent leakage of the coolant due to grease the grease emulsification, but also to prevent leakage of grease. Sealing measures to prevent leakage of water pump water seal and seal. Dynamic seal and the shaft seal ring by an interference fit over the object between the impeller and the bearing, a static sealing seat seal tightly press-fitted in the pump housing, so as to seal the cooling fluid.
is connected to the pump housing via a gasket to the engine, and supports the bearings and other moving parts. The water pump housing also scuppers, between the seal and the bearing. Once coolant lose a water seal, can escape from the scupper, the cooling fluid is prevented from entering the bearing cavity, the bearing lubrication and damage corrosion member. If there is still leakage of coolant after the engine stops, it indicates that the seal has been damaged.
Pump drive:
by a generally V-belt driven by the engine crankshaft. Belt looped between the crankshaft pulley and the water pump pulley, one revolution of the crank shaft will follow the operation of the water pump, the water pump drive shaft and the impeller is rotated, thereby achieving the mechanical energy into hydraulic energy.
The impeller is the core of the operation of the pump,Movement of the impeller itself is very simple, but the shaft rotate together. However, due to the action of the blades, the impeller motion of the liquid is very complicated; implicated as the one hand with the rotational motion of the impeller, on the one hand continuously thrown from the rotating impeller driven at driving the blade, i.e., the relative movement of the impeller. Thus the size of the outer diameter of the impeller, the impeller height and the angle of the blade, and the gap between the pump housing, directly affects the performance of the pump.