Reversible Pump Flush Toilet Rim Jet Spout Control
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Solution Overview
Problem
Conventional flush toilets require large valve apparatuses for efficient flushing, leading to increased size and cost, and struggle with stable water spouting at low fluid pressures, especially from rim spout ports.
Innovation Solution
A flush toilet design incorporating a reversible rotation centrifugal pump with a control device that manages water flow between rim and jet spout ports, allowing for efficient spouting at low pressures without additional equipment, reducing overall size and cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a valve apparatus is installed along the discharge pipe to control water flow to rim spout and jet spout, then spouting control is achieved, but the valve apparatus size must be widened to secure sufficient spout water quantity, increasing overall device size and cost
Solution Approach 1:
The patent merges the functions of multiple valves into a single multi-way valve apparatus. The valve apparatus includes a common passage that receives water from the pump and distributes it to both the rim spout and jet spout simultaneously, eliminating the need for separate valves for each spout and reducing overall valve size while maintaining adequate water flow to both outlets
Solution Approach 2:
The valve apparatus is designed as a multi-functional component that performs multiple functions: it controls water distribution to the rim spout, controls water distribution to the jet spout, and can operate in different modes (rim spout only, jet spout only, or both simultaneously) all through a single valve mechanism, thereby reducing the need for multiple specialized valves
2Reliability
If a pump is used to pressurize storage tank water for jet spout, then jet spouting is achieved, but rim spout cannot be activated alone or simultaneously with jet spout due to low water pressure
Solution Approach 1:
The valve apparatus merges the water supply lines for both rim spout and jet spout into a common distribution system. The common passage receives pressurized water from the pump and can distribute it to either the rim spout, the jet spout, or both simultaneously based on valve actuation, enabling flexible operation modes while maintaining adequate pressure
Solution Approach 2:
The valve apparatus incorporates movable valve members that can dynamically redirect water flow between different outlets. The valve mechanism allows dynamic switching between different spouting modes (rim only, jet only, or both) by changing the flow path configuration in real-time based on operational requirements
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
Enables stable water spouting from both rim and jet spout ports even at low fluid pressures, reducing the need for larger valve apparatuses and minimizing the flush toilet's size and installation costs.
Implementation Method 1
a pressurizing pump including a suction portion connected to the storage tank, a rim-side discharge portion connected to the rim spout portion, and a jet-side discharge portion connected to a jet spout portion; wherein the pressurizing pump is a reversible rotation pump including a reversible rotary impeller
Implementation Method 2
when the impeller is rotating in one direction, flush water in the storage tank is spouted to the rim-side discharge portion, and when the impeller is rotating in the other direction, flush water in the storage tank is spouted to the jet-side discharge portion
Data Source
AI summary
A flush toilet includes a valve apparatus for spouting and stopping water to a storage tank or a toilet main unit supplied from a water supply source, and includes a pressurizing pump, being a reversely rotatable pump including a suctioning portion connected to the storage tank, a rim-side discharge portion connected to the toilet main unit rim spouting portion, a jet-side discharge portion connected to the toilet main unit jet spouting portion, and an impeller; and when the impeller is rotating in one direction, the pressurizing pump spouts flush water in the storage tank to the rim-side discharge portion, whereas when the impeller rotates in the other direction, the pressurizing pump spouts flush water in the storage tank to the jet-side discharge portion, or spouts flush water in the storage tank to both the rim-side discharge portion and the jet-side discharge portion.