Multistage Pump Manifold Welded Body Design
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Solution Overview
Problem
Multistage pump manifolds with multiple pumping chambers in parallel are costly due to the need for multiple polymeric elements assembled with sealing gaskets and fixing means, which increases production time and expense.
Innovation Solution
A manifold design where the body is subdivided into two portions that can be made separately by injection molding and joined by welding, eliminating the need for sealing gaskets and simplifying the assembly process, allowing the entire duct to be formed from just two elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the manifold is made from multiple polymeric elements assembled with sealing gaskets and fixing means, then the manifold can be manufactured using injection molding, but the production cost and assembly time increase
Solution Approach 1:
The patent merges multiple separate polymeric elements into a single monolithic manifold body that is manufactured as one piece using injection molding. This eliminates the need for assembly of multiple elements, removing sealing gaskets and fixing means, thereby reducing assembly time and production cost while maintaining injection molding manufacturing capability.
2Ease of manufacture
If the manifold is made from multiple polymeric elements with sealing gaskets, then the duct can be formed in segments, but the production cost increases due to gaskets and fixing means
Solution Approach 1:
The patent combines multiple segmented duct elements into a single integrated manifold body. The monolithic structure eliminates the need for separate sealing gaskets and fixing means that would be required for assembled segments, thereby reducing production cost while still allowing the duct to be formed within the single molded body.
3Adaptability or versatility
If the manifold body is made from polymeric material in multiple elements, then the manifold can be assembled, but the overall cost including gaskets and fixing means becomes high
Solution Approach 1:
The patent merges multiple polymeric elements into a single monolithic manifold body manufactured by injection molding. This eliminates the need for separate sealing gaskets and fixing means, reducing overall cost while maintaining the adaptability and versatility of the manifold through its integrated design and connection interfaces.
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
This design reduces manufacturing costs and time, making the manifold both cost-effective and lightweight, while maintaining functionality and ease of connection to a drive shaft.
Implementation Method 1
the first portion and the second portion can be made separately by injection molding and joined by welding
Data Source
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AI summary
A manifold (70, 150) for a multistage pump (10) provided with a plurality of pumping chambers (15), wherein the manifold (70, 150) comprises a body (75, 155) which is so shaped as to define a duct (80, 160) extending along a path (P) and exhibiting an access mouth (125, 240) and a plurality of connection mouths (85, 165), wherein each connection mouth (85, 165) is adapted to be connected to a corresponding pumping chamber (15) of the pump (10), wherein the body (75, 155) is subdivided into at least a first portion (75a, 155a) and a second portion (75b, 155b), said manifold (70, 150) being characterized in that the first portion (75a, 155a) and the second portion (75b, 155b) are substantially subdivided at a secant plane (A, B) parallel to a plane whereon the path (P) is lying.