Automobile water pump

Abstract

The invention provides an automobile water pump which comprises a water pump body and an impeller. The water pump body is provided with a water inlet and a water outlet, and the water inlet and the water outlet both communicate with an inner cavity of the water pump body; and the impeller is arranged on the water pump body, the impeller is matched with the water pump body in a sealed mode to forma totally-closed impeller, and a hub of the impeller is arranged to be in an R shape. According to the automobile water pump, the semi-closed impeller and a pump shell are installed in a matched modeto form the fully-closed impeller, so that gap leakage of the whole water pump is small, the flow and the lift of the water pump are high, and the efficiency of the water pump is high; and the hub ofthe impeller is designed to be in the R shape, so that the water flow direction cannot be changed by the hub of the impeller due to a rotation angle after the water pump absorbs water, impact and friction are reduced, and the shaft power is reduced.

Description

Technical field [0001] The invention relates to the field of automobile water pumps, in particular to an automobile water pump. Background technique [0002] The automobile water pump is in the cylinder block of the automobile engine. There are multiple water channels for the circulation of cooling water, which are connected with the radiator placed in the front of the automobile through water pipes to form a large water circulation system. The upper water outlet of the engine is equipped with A water pump, driven by the fan belt, pumps out the hot water in the engine block waterway and pumps in the cold water. There is also a thermostat next to the water pump. When the car is first started, it is not turned on, so that the cooling water does not pass through the water tank, but only circulates in the engine. When the temperature of the engine reaches 95 degrees or more, it turns on. The hot water in the engine It is pumped into the water tank, and the cold wind blows through th...

AI Technical Summary

Problems solved by technology

[0003] As the power source of the car cooling cycle system, the water pump takes away the heat of the car engine through circulating coolant to ensure the normal operation of the engine, so the water pump plays a vital role in the car, but people find in the process of driving, When the water pump is working, the water pump has an impeller hub with an interference connection with the pump shaft, and an integrated impeller cover plate is formed on the end face of the impeller hub, and the blades are evenly distributed on the impeller cover plate. The line outlet is back-curved. The water pump formed by the impeller of this structure has small flow rate, low head, low efficiency, and serious cavitation of the blades, which affects the cooling requirements of the increased engine power. The engine is easy to boil, resulting in damage to parts.

And the outlet pipe of the water pump is connected to the water inlet pipe with a water pipe. Now the commonly used connection method is to directly socket the two. the inconvenience

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