Showerhead Engine Rotating Spray via Paddle Wheel
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Solution Overview
Problem
Showerhead engines face issues with increased shower duration due to water inlet restriction, small water droplets losing thermal energy, and mechanical complexity leading to higher costs and potential failures.
Innovation Solution
A showerhead engine design featuring a first and second plate forming a cavity with angled holes and a paddle wheel mechanism that creates a swirling water flow, reducing mechanical complexity while maintaining effective water distribution and thermal energy retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If water inlet is restricted to minimize water consumption, then water consumption is reduced, but shower duration increases and user convenience deteriorates
Solution Approach 1:
The showerhead engine creates a dynamic rotating spray pattern that continuously changes the direction and distribution of water flow. The paddle wheel rotation causes water to be distributed across different areas dynamically, enhancing wetting efficiency without requiring increased water consumption or duration.
Solution Approach 2:
The invention utilizes hydraulic principles by creating a swirling water flow pattern through the angled hole configuration. The water flow itself generates rotational motion that drives the paddle wheel, converting linear water flow into rotational kinetic energy to achieve dynamic spray distribution.
2Loss of substance
If water outlet is restricted to minimize water consumption, then water consumption is reduced, but water droplets become very small and thermal energy is lost
Solution Approach 1:
The dynamic rotation of the paddle wheel creates varying droplet sizes and trajectories throughout the spray pattern. This dynamic distribution ensures that water maintains larger effective droplet sizes that retain thermal energy better, while still achieving comprehensive coverage through the rotating motion.
Solution Approach 2:
The rotating spray pattern creates periodic action where different areas are wetted in sequence. This periodic distribution allows water to maintain its thermal properties longer by reducing continuous exposure to air, thereby minimizing thermal energy loss while still providing effective rinsing coverage.
3Adaptability or versatility
If multiple small parts are used to create spray patterns, then spray pattern versatility is improved, but mechanical complexity increases and reliability decreases
Solution Approach 1:
The invention merges multiple functions into a single integrated mechanism. The paddle wheel with its angled paddles combines the functions of water distribution, rotation generation, and spray pattern creation into one component, eliminating the need for multiple separate parts and reducing mechanical complexity.
Solution Approach 2:
The paddle wheel serves multiple functions simultaneously: it acts as a water distributor, a rotation generator through its interaction with angled water flow, and a spray pattern creator through its rotating motion. This multi-functionality reduces the number of components needed while maintaining spray pattern versatility.
4Adaptability or versatility
If multiple small parts are used to create spray patterns, then spray pattern versatility is improved, but reliability decreases due to scale build-up and mechanical failure
Solution Approach 1:
By combining multiple functions into fewer integrated components, the invention reduces the number of potential failure points. The merged structure is easier to clean and maintain, improving reliability by minimizing areas where scale build-up can occur while still providing spray pattern versatility.
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 design restricts water flow while providing a comparable shower experience to higher flow rate showerheads, reducing shower duration and mechanical complexity, and enhancing user satisfaction by maintaining thermal energy and efficient water distribution.
Implementation Method 1
When water is passed through the at least one hole in the first plate, it enters the cavity in a swirling motion caused by the angle of the at least one hole
Implementation Method 2
The notched cutout includes an angled surface configured to deflect the exiting water and change a direction of the water flow
Data Source
AI summary
A showerhead engine includes a first plate joined to a second plate with a cavity therebetween. Water enters the cavity through an angled hole in the first plate and flows in a swirling motion about the central axis. A paddle wheel is spun within the cavity by the swirling water. A notched cutout in the paddle wheel forms an exit passage through a through hole in the second plate allowing the water to exit when the notched cutout lines up with slots in the second plate. The revolving paddle wheel continues to revolve thereby revolving the notched cutout and producing a revolving spray pattern.