Toilet Flush Engine Valve Control for Low Water Pressure
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Solution Overview
Problem
Existing in-line pressure flush engines for toilets require high in-line water pressure to operate effectively, leading to poor performance and inadequate waste removal when water pressure is insufficient, which is common in many buildings.
Innovation Solution
The implementation of gate valves and flush assemblies that utilize a hydraulic cylinder and solenoid valves to manage water flow and pressure, allowing for reliable flushing even at lower in-line water pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If in-line pressure flush engines are used, then flushing capability is improved, but water pressure requirement increases
Solution Approach 1:
The system segments the water flow into multiple controlled paths using separate solenoid valves for different outlets (bowl outlet, rim outlet, sump outlet). This segmentation allows precise control of water distribution to different areas, enabling effective flushing at lower overall pressure by directing water flow strategically rather than relying on high pressure distributed uniformly.
Solution Approach 2:
The control system acts as an intermediary between the water supply and the flushing outlets. By using solenoid valves and a control circuit, the system mediates water flow to optimize pressure distribution across different outlets, allowing the flush engine to operate reliably at lower in-line pressure while maintaining effective waste removal and bowl rinsing.
2Productivity
If high water pressure is used, then waste removal efficiency is improved, but energy consumption increases
Solution Approach 1:
The system dynamically controls water flow to different outlets based on the flushing cycle requirements. The solenoid valves are activated in sequence or combination according to control logic, allowing the system to adapt water pressure and flow distribution dynamically. This dynamic control maintains waste removal efficiency by directing adequate pressure to critical outlets while reducing overall energy consumption through intelligent flow management.
Solution Approach 2:
The flush engine operates through periodic cycles with controlled activation of different outlets. The control system implements periodic action by sequentially or selectively activating solenoid valves during the flushing cycle, ensuring that waste removal and bowl rinsing receive appropriate water pressure at the right times, thereby maintaining productivity while optimizing energy usage.
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 solution enables efficient and reliable flushing of toilets under lower water pressure conditions, ensuring effective waste removal and bowl rinsing without the need for high-pressure water supplies.
Implementation Method 1
a gate valve (340) configured to selectively block a flow of water from the water supply to the rim outlet (350) and the jet outlet (360)
Implementation Method 2
The flush engine (300) includes a first valve (320) configured to selectively provide a flow of water from the water supply (310) to the gate valve (340) and to the rim outlet (350)
Data Source
AI summary
Provided is a system for flushing a toilet including a flow controller having a housing including an inlet configured to receive a first flow of water, a first outlet, and a second outlet. The flow controller may further include a hydraulic turbine disposed in the housing in fluid communication with the inlet and configured to generate power as the first flow of water travels therethrough, a rim valve disposed in the housing in fluid communication with the inlet and configured to control a second flow of water provided to the first outlet, and a sump jet valve disposed in the housing in fluid communication with the inlet and configured to control a third flow of water provided to the second outlet.