Flow Diverter Valve Piston Switching High Pressure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing flow diverter valves in commercial and residential settings are prone to leaks and mechanical failure due to glued or threaded connections, which are not suitable for high-pressure applications and can become loose or break under external forces.
Innovation Solution
A flow diverter valve design featuring a cylindrical valve body with a piston assembly and nut system that allows for watertight switching between two flow channels, one for reduced pressure and another for higher pressure, using a piston assembly with O-rings and a piston lock for secure alignment and operation, and an aerator unit for stream shaping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If glued or threaded connections are used to attach side passage to valve body, then the valve can be assembled with separate components, but the connections are prone to leaks and mechanical failure under high pressure
Solution Approach 1:
The side passage is integrated directly into the valve body as a unified component, eliminating separate attachment connections. The side passage and valve body form a single molded piece, removing the glued or threaded joints that were prone to leakage and failure under high pressure conditions.
2Ease of manufacture
If threaded side passage is screwed into valve body, then the components can be independently manufactured and assembled, but the threaded connection can become loose or break off under external forces
Solution Approach 1:
The side passage and valve body are combined into a single integrated component, eliminating the threaded connection entirely. This integration removes the weak point where threads could become loose or break under external forces, while the entire assembly can still be manufactured as a single molded part.
3Adaptability or versatility
If piston assembly is used to switch between flow channels, then water flow can be redirected between pressure modes, but the moving parts must maintain watertight seals under high pressure
Solution Approach 1:
An elastomeric piston is used as a flexible sealing element that can deflect under pressure while maintaining watertight seals. The elastomeric material provides inherent flexibility and sealing capability, allowing the piston to redirect flow between channels while preventing leakage under high pressure conditions.
Solution Approach 2:
The piston position is changed to redirect flow between different channels. By moving the piston to different positions, the system switches between flow paths while the elastomeric sealing surfaces maintain contact to prevent leakage, adapting the flow parameters without compromising seal integrity.
4Ease of operation
If aerator unit is removably attached to bottom chamber, then the aerator can be easily installed and removed, but the connection must remain secure under high pressure flow
Solution Approach 1:
The aerator unit is designed as a separate, removable component that can be independently installed and removed from the bottom chamber. This segmentation allows for easy maintenance and operation while the connection interface is designed to maintain security under high pressure flow conditions.
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 provides a reliable, leak-proof, and easy-to-use flow diverter valve that can handle high pressures, ensuring consistent water flow and improved durability by maintaining secure connections and efficient operation between different pressure modes.
Implementation Method 1
the piston assembly in an extended position defines a flow channel (Channel 'B') for the fluid to flow therethrough under restricted or reduced pressure, and the piston assembly in a retracted position defines the flow channel (Channel 'C') for the fluid to flow therethrough under an unrestricted higher pressure
Implementation Method 2
A flow diverter valve design featuring a cylindrical valve body with a piston assembly and nut system that allows for watertight switching between two flow channels
Implementation Method 3
a bottom chamber with a second opening, wherein the bottom chamber is adapted to removably receive an aerator unit for aeration or stream shaping of fluid flowing therethrough
Data Source
AI summary
Disclosed is a flow diverter valve. The valve includes a cylindrical valve body having a top chamber with a first opening, a bottom chamber with a second opening, wherein the bottom chamber is adapted to removably receive an aerator or similar unit for aeration and/or fluid stream shaping of fluid flowing therethrough, and an intermediate channel defining a continuous passageway between the top chamber and the bottom chambers and extending to an outlet configured adjacent to the bottom chamber forming a part of a flow channel (Channel "C"), a nut adapted for connecting the cylindrical valve body to a water outlet, and a piston assembly slidably housed within the intermediate chamber, wherein the piston assembly in an extended position defines a flow channel (Channel "B") for the fluid to flow therethrough under reduced or restricted pressure or common faucet water flow pressure, and the piston assembly in a retracted position defines the flow channel (Channel "C") for the fluid to flow therethrough under relatively higher pressure or greater intensity.