Water-sealing-type composite impeller for cooling water pump of automobile engine

Abstract

The invention relates to a water-sealing-type composite impeller for a cooling water pump of an automobile engine. The impeller is provided with a static ring base, corrugated rubber hoses, springs, static rings and an impeller body. The outer wall of the static ring base is provided with a seal ring, an inner annular groove of the static ring base is fixedly provided with the corrugated rubber hoses, and the corrugated rubber hoses are provided with the springs and the static rings. The water-sealing-type composite impeller is characterized in that the impeller body is made from high-strengthengineering plastic and is provided with a spoke, rotating rings, blades, an inner hole and balance holes, the rotating rings are made of a silicon carbide material and are embedded in the portions,corresponding to the static rings, of the spoke of the impeller body, and the spoke is a smooth umbrella cover and is provided with the evenly-distributed blades. When the water pump is assembled, thestatic ring base is fixedly installed on the water sealing portion of a water pump housing, and the impeller body is fixedly installed on the shaft neck of a bearing, so that the springs fit the fitting surfaces of the static rings and the rotating rings when the springs are compressed to achieve the water sealing function. According to the water-sealing-type composite impeller, the material is saved, the surface of the impeller body does not need to be treated, and the impeller has the advantages of being simple in structure, environmentally friendly, resistant to corrosion and good in waterabsorption capability.

Description

technical field [0001] The invention relates to an improved design of an impeller of a cooling water pump for an automobile engine, and relates to a water-sealing composite impeller for the cooling water pump of an automobile engine. Background technique [0002] In order to prevent circulating hot water from entering the bearing, the existing automobile cooling water pump adopts a special water seal. This water seal is mainly composed of a static ring, a static ring seat, a spring, a corrugated rubber tube and a moving ring. The static ring, spring and corrugated The rubber tube is installed on the static ring seat, and the static ring seat is fixedly installed on the pump body. The moving ring is installed on the moving ring seat and fixed on the journal of the bearing. Both the static ring seat and the moving ring seat are made of stainless steel. It is formed by stamping. The impeller is formed by stamping steel plate and surface anti-rust treatment. This structure is co...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of existing automotive engine cooling water pump water seals and impellers with complex structures, waste of materials, environmental pollution and poor water absorption performance of water pump impellers, etc. impeller

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