Energy-saving water pump for automobile engine

Abstract

The invention relates to an energy-saving water pump for an automobile engine. The energy-saving water pump comprises a pump body with an inlet and an outlet. The energy-saving water pump for the automobile engine further comprises an impeller assembly. The impeller assembly comprises a rotating shaft, a rotating table, a sliding shaft, a connecting piece and blades. The energy-saving water pump has the advantages that the height and length of the portions, extending out of the rotating table, of the blades can be controlled through an electric pole, and therefore the displacement of the waterpump can be changed; when the blades completely retract, the blades are in a completely-non-working state, and therefore when the engine is in cold start or warm-up, an impeller can stop working, thetemperature of the engine can be rapidly increased, the fuel economy of the engine is improved, energy consumption and emission of the engine can be improved, and the power performance and fuel economy of an automobile can be improved.

Description

technical field [0001] The invention belongs to the technical field of automobile water pumps, and in particular relates to an energy-saving 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 ...

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.

[0004] 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 internal parts of the water pump are damaged by cavitation and other consequences.

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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