Undulating Rotor Collar Pump Housing for Compact Assembly
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Solution Overview
Problem
Conventional sinusoidal pumps require significant installation space and are complex to assemble and disassemble, especially for maintenance and cleaning, due to their design involving metal rotors and plastic stators.
Innovation Solution
A pump design featuring a rotor hub and undulating rotor collar within a three-part metal pump housing, eliminating the need for plastic stators and allowing for a simpler, cost-effective assembly and disassembly process, with a blocking device to manage fluid flow and reduce installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If plastic stators are used to form the pump duct, then the pump can be assembled with conventional components, but the assembly and disassembly become complicated and cleaning becomes difficult
Solution Approach 1:
The pump duct is merged with the pump housing structure itself. The housing components (first axial housing component, central annular housing component, and second axial housing component) directly form the pump duct pathways, eliminating the need for separate plastic stator components. This integration simplifies the overall structure, making assembly and disassembly easier while maintaining the pump's functional integrity.
2Ease of manufacture
If a conventional pump duct design is used, then the pump can maintain standard geometry, but the installation space required increases
Solution Approach 1:
The pump duct is reconfigured to extend primarily in the axial direction rather than occupying significant radial space. The first and second axial housing components are positioned at opposite axial ends, with the central annular housing component connecting them, creating a compact axial layout that reduces the overall installation footprint while maintaining functional pump geometry.
3Ease of manufacture
If the pump housing is made as a single piece, then manufacturing is simpler, but the geometry becomes complex and production costs increase
Solution Approach 1:
The pump housing is segmented into three distinct axial components: a first axial housing component, a central annular housing component, and a second axial housing component. Each component has a simpler, more manufacturable geometry with standard features like flanges and mounting surfaces. These segments are assembled together to form the complete pump housing, reducing individual part complexity while achieving the required overall geometry.
Data Source
AI summary
A pump includes a rotor and a pump housing. The rotor is rotatable about a rotation axis and comprises a rotor hub and a rotor collar. The rotor collar extends from the rotor hub in the radial direction and encircles the rotor hub in an undulating manner. The pump housing comprises a first axial housing component, a central annular housing component, and a second axial housing component. A pump duct is formed (i) in the axial direction by the first and second housing components and (ii) in the radial direction by the central annular housing component and the rotor.