The water pump ride type motorcycle water pump housing is installed at the front of the left axle cover, and the seat of the water pump housing of the motorcycle is actually installed at the front of the right axle cover. When the impeller on the water pump shaft rotates, a vacuum is formed at the center of the impeller. The coolant from the lower radiator of the radiator just enters the central part of the impeller and enters the pump. The impeller rotates with the coolant and the coolant is thrown off due to the centrifugal effect. It is thrown into the outer edge of the impeller and has a certain pressure. It is delivered to the water jacket of the cylinder under the guidance of the centrifugal diversion groove at the outer edge of the impeller of the housing. When the coolant temperature is higher than, the thermostat housing is heated to melt the yellow wax in its inner cavity into a liquid state, the yellow wax volume expands, and the squeeze rubber sleeve shrinks toward the center, so that the thrust force at the lower end of the thrust rod is generated. The upper end is fixed, so that the lower end of the anti-push rod produces a reverse thrust force on the rubber sleeve and the housing, thereby compressing the spring to open the valve. At this time, the high-temperature cold circulation valve in the engine closes the large circulation valve and opens the cover rubber sleeve yellow wax. . The thermostat thermostat housing is generally mounted at the upper water jacket outlet of the cylinder head, the top of which leads to the right side of the radiator or the upper water tank, and is a switch or valve for circulation of the cooling liquid in the cooling system. The upper bracket seat and the lower bracket are riveted together. Radiator cover fluid is passed through the fully open thermostat valve, from the top of the housing to the radiator through the heat sink to cool, all the cooling liquid circulating between the radiator and the engine water jacket. When the temperature of the coolant is lower, the yellow wax in the thermostat gradually becomes solid, the volume is reduced, and the valve is seated and closed again under the action of the spring force. Radiator radiator consists of left and right (or up and down) water tank and radiator core three parts. Radiator cooling fluid flows from the right tank through the radiator core and then to the left pressure valve to open the tank called a crossflow radiator. This radiator is widely used by modern motorcycles, especially multi-cylinder engines.
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