Automobile engine cooling water pump

Abstract

The invention relates to an automobile engine cooling water pump. The water pump comprises a pump body, a pump cover fixedly arranged on the pump body, an input shaft, a rotating frame, at least two blades and an adjusting rod. The at least two blades are uniformly hinged to the rotating frame in a radial shape, a connecting groove is formed at the end, close to the center of the rotating frame, of each blade, and the blades can be driven to rotate by rotating the rotating frame, so that the water pump pumps water; and the adjusting rod is arranged on the rotating frame in a sliding manner, a plurality of control blocks are arranged at the positions, corresponding to the connecting grooves of the blades, of the adjusting rod, the control blocks are arranged in the connecting grooves of the blades in a one-to-one correspondence manner, and the inclination angles of the blades can be controlled by controlling the position of the adjusting rod. The water pump has the advantages that the distance between the adjusting rod and the rotating frame is controlled through extension and retraction of an electric pole, so that the adjusting rod can adjust the angles of the blades, the pumped-out flow is changed, and the phenomenon that an engine is too hot or too cold is avoided.

Description

technical field [0001] The invention relates to the technical field of water pumps, in particular to an automobile engine cooling water pump. Background technique [0002] Generally, the engine uses a conventional mechanical water pump, that is, the water pump impeller is driven to rotate under the drive of the water pump pulley to realize the pumping function of the water pump. Improve and improve. The maximum pumping water volume of the mechanical water pump is designed according to the cooling demand of the engine under full load conditions, but in the cold start, warm up and light load conditions of the engine, the pumping water volume of the mechanical water pump is greater than the cooling demand of the engine, which will prolong the engine warm up time , It will also cause adverse consequences such as insufficient combustion, carbon deposition in combustion, and excessive emissions during the warm-up process. The coolant flow required by the engine under different o...

AI Technical Summary

Problems solved by technology

The cooling system controlled by the thermal management module is often structurally arranged, takes up a lot of complex space, and the control of the coolant circulation control mechanism is complicated, which will greatly increase the number of engine parts, resulting in increased engine weight and cost.

In addition, under heating conditions such as warm-up and cold start, the thermal management module controls zero water supply or a small amount of water supply, but the water pump is still pumping water to do work, which causes the pressure near the pump water port to increase and the coolant bubbles to increase, seriously The leakage of coolant increases, and the parts in the water pump are damaged by cavitation corrosion, etc.

Moreover, under heating conditions such as zero water supply or a small amount of water supply, the water pump is still doing work under the normal pump water volume, resulting in the consumption of engine power

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