Tapered Pressure Bushing for Compact Pump Flow Efficiency
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Solution Overview
Problem
Existing fluid pumps, particularly in domestic appliances like dishwashers, face challenges in efficiency and space constraints, necessitating smaller components with enhanced hydraulic efficiency.
Innovation Solution
The design of a pressure bushing with a tapered inner circumference, a pressure ring, and a pressure wall with specific geometric features, along with an impeller having optimized blade configurations, enhances fluid dynamics and heating efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the pump size is reduced to meet space constraints, then the pump can be installed in smaller spaces, but the hydraulic efficiency and flow rate may deteriorate
Solution Approach 1:
The pressure bushing features a tapered inner circumference surface specifically in the fluid flow path area, creating localized flow optimization. This tapering geometry concentrates flow guidance where it is most needed while keeping other parts of the pump compact, thus improving hydraulic efficiency without increasing overall pump volume.
Solution Approach 2:
The invention changes the geometric parameters of the pressure bushing by introducing a tapered inner circumference surface with specific angle ranges. This parameter modification optimizes fluid flow characteristics and reduces turbulence, enabling compact pump design to maintain or improve flow rate and hydraulic efficiency.
2Volume of moving object
If the pump size is reduced to meet space constraints, then the pump can be installed in smaller spaces, but the hydraulic efficiency may deteriorate
Solution Approach 1:
The tapered inner circumference surface is applied specifically to the pressure bushing's fluid flow path, creating localized flow optimization. This targeted geometric modification reduces flow separation and turbulence in critical areas, improving hydraulic efficiency without requiring an increase in overall pump size.
Solution Approach 2:
The invention employs curved tapered surfaces instead of sharp edges or flat surfaces in the pressure bushing. This curvature design promotes smooth fluid flow transitions, reduces turbulence and energy loss, and maintains hydraulic efficiency in a compact pump configuration.
3Ease of manufacture
If conventional pressure bushing design is used, then manufacturing is simpler, but fluid flow dynamics and heating efficiency are suboptimal
Solution Approach 1:
The pressure bushing incorporates a tapered inner circumference surface specifically in the fluid flow path region, creating localized flow optimization. This targeted geometric feature enhances fluid dynamics and heating efficiency while maintaining a relatively simple overall structure that can be manufactured using conventional processes.
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
Improves hydraulic efficiency and fluid flow dynamics, reducing turbulence and enhancing the heating process in fluid pumps.
Implementation Method 1
fluid dynamics of fluid flow can be enhanced
Implementation Method 2
it is possible to generate fluid flows which are directed towards the heating unit
Data Source
AI summary
A pressure bushing for a centrifugal pump for fluid, the pressure bushing having a substantially cylindrical shape, and comprising at least: a bottom portion, an outer side portion, and an inner side portion opposing the outer side portion and having an inner circumference surface, wherein the inner circumference surface of the inner side portion tapers at least partially towards the bottom portion of the pressure bushing.