Rotating Housing Fluid Pump Eliminates Cavitation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing centrifugal fluid pumps face limitations in energy efficiency and are prone to cavitation and recirculation, especially at higher RPMs, which leads to high energy loss and reduced performance.
Innovation Solution
The development of an energy-conserving fluid pump design where the pump and housing rotate together, incorporating a convergent housing, fluid diffuser, and fluid densifier. This design eliminates cavitation by constantly building pressure and allows for increased RPMs without load, achieving low energy conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the pump operates at higher RPMs, then productivity increases, but cavitation occurs in typical centrifugal pumps
Solution Approach 1:
The patent merges the impeller and housing into a single rotating assembly, eliminating the stationary housing that causes cavitation in traditional pumps. This unified structure allows the entire pump to rotate with the impeller, preventing fluid stagnation and cavitation while enabling operation at higher RPMs up to 100,000 RPM
Solution Approach 2:
The patent transitions from a static housing to a dynamic rotating housing that moves with the impeller. This dynamic configuration allows the pump to operate at variable high speeds without the cavitation limitations of static housings, as the rotating housing continuously refreshes the fluid path and prevents vapor pocket formation
2Productivity
If the pump operates at higher RPMs, then productivity increases, but energy loss increases due to recirculation and churning
Solution Approach 1:
By merging the housing with the rotating assembly, the patent eliminates dead zones and recirculation paths that cause energy loss. The unified structure ensures all fluid moves through the impeller efficiently without sloshing or recirculation, reducing energy waste while maintaining high productivity
Solution Approach 2:
The rotating housing design ensures continuous fluid movement through the pump without interruption or recirculation. Fluid is continuously accelerated by the impeller and discharged without stagnation, maintaining efficient energy transfer from motor to fluid across the full RPM range
3Ease of manufacture
If the pump housing is stationary, then manufacturing is simpler, but cavitation and recirculation occur
Solution Approach 1:
The patent combines the housing and impeller into a single integrated component that rotates as one unit. This merger simplifies manufacturing by reducing the number of separate parts and assembly steps, while simultaneously eliminating cavitation by ensuring all components move together without relative motion that would cause fluid stagnation
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 pump achieves energy conservation, prevents cavitation and recirculation, and maintains high-pressure output even at high RPMs, making it suitable for applications like water desalination and propulsion.
Implementation Method 1
The flowing fluid is constantly building pressure as the fluid moves through the energy-conserving fluid pump, eliminating the possibility of cavitation within the convergent housing
Implementation Method 2
Once the fluid leaves the fluid diffuser, the flowing fluid is immediately sheared by the stationary fluid densifier
Implementation Method 3
the flowing fluid is immediately sheared by the stationary fluid densifier, sent downward to the center of rotation of the convergent housing
Implementation Method 4
The present invention can run in a range of 1000 to 100,000 RPMs with no cavitation. The faster the present invention rotates, the higher the Gallons Per Minute (GPM) produced as well as a higher flow pressure
Data Source
AI summary
An energy-conserving fluid pump is an apparatus used to transport low viscosity fluids like water and fuel without experiencing cavitation, recirculation, nor motor locking while also conserving energy. The apparatus includes a fluid diffuser, a fluid densifier, a convergent housing, and a strut assembly. The fluid diffuser improves the efficiency of the apparatus by expanding the fluid inflow and maintaining a fluid pressure buildup. The fluid densifier shears the incoming fluid flow from the fluid diffuser and increases the fluid outflow pressure. The convergent housing encloses the fluid diffuser and the fluid densifier while facilitating the outflow of the pressurized fluid without the loss of fluid pressure nor cavitation. In addition, the convergent housing facilitates the transfer of torque to the fluid diffuser for the operation of the apparatus. The strut assembly keeps the fluid densifier stationary while enabling the rotation of the convergent housing and/or the fluid diffuser.