Water Pump Impeller Shaft Support Structure
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Solution Overview
Problem
Conventional water pumps with impeller supporting structures have high manufacturing costs and exhibit excessive noise and vibration due to complex bearing systems.
Innovation Solution
A water pump design featuring a shaft with a core and magnetic material, supported by a pump housing with upper and lower housings and supporting members, including bearings and spherical or flat surfaces for reduced friction and noise, and utilizing a simplified structure with lubrication to minimize vibration and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a plurality of bearings are used to support the shaft, then the shaft support reliability is improved, but the manufacturing cost increases and noise and vibration increase
Solution Approach 1:
The patent extracts and eliminates the complex bearing system from the shaft support structure. Instead of using multiple bearings, the invention uses a simplified support structure where the shaft is directly supported by the pump housing with a bearing hole, removing unnecessary components while maintaining support functionality.
Solution Approach 2:
The patent merges the shaft support function into the pump housing structure itself. The bearing hole is integrated directly into the pump housing, combining the support function with the housing structure, thereby eliminating separate bearing components and reducing overall system complexity.
2Reliability
If a plurality of bearings are used to support the shaft, then the shaft support reliability is improved, but the manufacturing cost increases
Solution Approach 1:
The patent removes the expensive bearing components from the design. By extracting the bearing system and replacing it with a direct support structure in the pump housing, the manufacturing cost is significantly reduced while maintaining adequate shaft support.
Solution Approach 2:
The support function is merged into the pump housing manufacturing process itself. The bearing hole is formed as part of the housing structure, eliminating the need for separate bearing components and reducing assembly steps, thereby lowering manufacturing costs.
3Reliability
If a plurality of bearings are used to support the shaft, then the shaft support reliability is improved, but noise and vibration increase
Solution Approach 1:
The patent extracts and removes the bearing system that generates noise and vibration. By eliminating these components and using a direct support structure, the harmful noise and vibration are removed from the system while adequate support is maintained.
Solution Approach 2:
The support function is integrated into the pump housing structure, eliminating separate bearing components that generate noise and vibration. The direct integration reduces the number of moving parts and interfaces that could generate harmful vibrations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design achieves reduced noise and vibration characteristics while lowering manufacturing costs through a more efficient and simplified supporting structure for the impeller and shaft, enhancing pumping efficiency.
Implementation Method 1
a magnetic material formed on an outer circumference of the core and forming a magnetic field rotating the shaft connected to the core and the impeller
Implementation Method 2
a bearing provided between the supporting structure and an outer circumference of an end of the shaft
Data Source
AI summary
Provided is a water pump including a supporting structure for an impeller having a lower manufacturing cost and having reduced noise and vibration characteristics compared to a conventional water pump including a supporting structure for an impeller. The water pump including a supporting structure for an impeller includes: a shaft; an impeller having the shaft inserted into a center of the impeller and rotating together with the shaft to discharge an introduced fluid; a core formed on an outer circumference of the shaft; a magnetic material formed on an outer circumference of the core and forming a magnetic field rotating the shaft connected to the core and the impeller; a pump housing the shaft, impeller and core; and a supporting member installed between an end of the shaft and the pump housing to support the shaft.