Integrated Pump Rotor-Stator Layout for Compact Electric Pumping
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Solution Overview
Problem
Existing pump systems in the aerospace industry face challenges in integrating electric motors efficiently, particularly in terms of weight, cost, and space considerations, as conventional electrically driven pumps are heavy and inefficient.
Innovation Solution
A pump design that integrates an electric motor by configuring the housing as both a pump housing and a stator, with a cylinder acting as both an impeller and a rotor, utilizing magnetic fields and split impeller portions to induce radial vortex passes, allowing for simultaneous operation of the pump and motor, and incorporating bearings to reduce friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If an electric motor is integrated into the pump, then pump performance is improved, but weight increases
Solution Approach 1:
The patent merges the pump and motor into a single integrated unit where the motor housing serves as the pump housing and the motor rotor serves as the pump impeller. This consolidation eliminates separate components and reduces overall weight while maintaining both pumping and motor functions.
Solution Approach 2:
The housing performs dual functions as both the motor stator and pump housing, while the rotating cylinder serves as both the motor rotor and pump impeller. This multi-functionality reduces the number of separate components needed, thereby reducing weight while achieving both motor drive and fluid pumping capabilities.
2Power
If an electric motor is integrated into the pump, then pump performance is improved, but space requirements increase
Solution Approach 1:
The motor and pump are merged into a single compact unit where components serve dual purposes. The motor housing contains both motor and pump functions, and the rotor contains both rotor and impeller functions, significantly reducing the overall volume compared to separate motor and pump assemblies.
Solution Approach 2:
Each component is designed to perform multiple functions: the housing acts as both stator and pump housing, while the rotating cylinder acts as both rotor and impeller. This multi-functionality maximizes space utilization and minimizes the total volume required for the system.
3Power
If conventional electrically driven pumps are used, then pump function is achieved, but weight and cost increase
Solution Approach 1:
The patent combines the electric motor and pump into a single integrated assembly, eliminating the need for separate motor and pump components. This merging reduces weight, cost, and space while maintaining full pumping functionality through the dual-purpose design of housing and rotating elements.
Solution Approach 2:
The housing and rotating cylinder are designed to perform both motor and pump functions simultaneously. This multi-functionality eliminates redundant components, reducing both weight and cost while achieving complete pump operation through the integrated design.
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 achieves a significant reduction in weight, cost, and space requirements while maintaining pump performance, enabling efficient fluid pressure increase through radial vortex passes, and providing a regenerative pumping action.
Implementation Method 1
the first housing portion can include one or more field windings configured to generate a magnetic field to drive rotation of the cylinder
Implementation Method 2
the second cylinder portion can include one or more blades configured to induce turbulence in a fluid passing from the one or more fluid inlets to the one or more fluid outlets
Implementation Method 3
The impeller portions can be configured to induce one or more radial vortex passes in a fluid passing though the one or more circumferential passes to increase a pressure of the fluid at the fluid outlet
Implementation Method 4
the fluid passing though the housing and the clearance can be configured to act as coolant for the motor
Data Source
AI summary
In accordance with at least one aspect of this disclosure, a pump includes a housing having one or more fluid inlets and one or more fluid outlets. The housing is configured to act as a pump housing for passing a fluid from the one or more fluid inlets to the one or more fluid outlets and configured to act as a stator for a motor. The pump also includes a cylinder encased within the housing and mounted on a shaft for rotation within the housing. The cylinder is configured to act as an impeller to drive fluid from the one or more fluid inlets through the housing to the one or more fluid outlets and configured to act as a rotor for the motor.