Water-Saving Siphon Toilet With Isolated Eject Channel

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Traditional siphon toilets waste water due to inefficient flushing mechanisms, where water has to expel air from channels, leading to slower siphonic effects and unnecessary overflow, and the potential energy for flushing is lower than the original water level.

Innovation Solution

A water-saving siphon toilet design that isolates the eject water channel from outside air, using a check valve to separate it from the brushing water channel, allowing reserved water to store energy for enhanced flushing and reducing air resistance, thus improving the siphonic effect and minimizing water waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the eject water channel is communicated with outside air, then the brushing water channel can effectively brush the toilet body surface, but the water flow has to expel air from the channel, causing slow siphonic effect and water waste

Engineering Contradiction:

Improvebrushing functionVSAvoidflushing speed

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The patent divides the water delivery system into two separate channels: a brushing water channel (14) that communicates with outside air for effective brushing, and an eject water channel (12) that is isolated from outside air to enable rapid siphonic flushing. This segmentation allows each channel to optimize its function without interference from air entrapment issues.

Inventive Principle:

Principle #1Segmentation

2Loss of time

If the drain valve is opened before the eject water channel is filled, then the flushing process can start immediately, but the water level of the water tank drops, reducing potential energy for flushing

Engineering Contradiction:

Improveflushing delayVSAvoidpotential energy

Core Design Contradiction:

Loss of timeVSUse of energy by moving object

Solution Approach 1:

The eject water channel (12) is pre-filled with water before the draining process begins. This preliminary action ensures that when the drain valve (22) opens, the full potential energy of the water tank is available for flushing, and no time is lost waiting for the channel to fill. The channel remains filled through the water seal mechanism.

Inventive Principle:

Principle #10Preliminary action

3Productivity

If water is stored in the channel part above the water seal line, then the eject water channel can be filled quickly, but water overflows from the highest point of the S bend, causing water waste

Engineering Contradiction:

Improvefilling speedVSAvoidwater waste

Core Design Contradiction:

ProductivityVSLoss of substance

Solution Approach 1:

The water seal line (11) acts as an intermediary mechanism that allows the eject water channel (12) to be filled with water up to the optimal level without causing overflow. The unique S-bend design with the water seal creates a controlled interface that prevents air entrapment while avoiding water loss through overflow.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Loss of substance

If the eject water channel is isolated from outside air, then water can be stored efficiently for flushing, but the system becomes more complex with additional isolation mechanisms

Engineering Contradiction:

Improvewater wasteVSAvoidchannel isolation structure

Core Design Contradiction:

Loss of substanceVSDevice complexity

Solution Approach 1:

The eject water channel (12) uses a self-service isolation mechanism where the water itself creates the seal through the S-bend configuration. The water seal line (11) automatically prevents air from entering the channel while allowing water to be stored and released. This eliminates the need for additional mechanical isolation devices, reducing system complexity.

Inventive Principle:

Principle #25Self-service

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 enhances flushing efficiency by maintaining a vacuum in the eject water channel, reducing energy costs and water waste, and ensures better flushing performance with faster water flow and improved siphonic action.

Implementation Method 1

helping the siphon channel 30′ generate the siphonic effect

Methodology Applied

Scientific EffectSiphonic effect: Syphon

Implementation Method 2

The design enhances flushing efficiency by maintaining a vacuum in the eject water channel

Methodology Applied

Scientific EffectVacuum: Vacuum

Implementation Method 3

water flow passing through the eject water channel 12′ has to expel the air in the channel part 12.2′

Methodology Applied

Scientific EffectPressure gradient: Pressure Gradient

Data Source

PatentUS9605421B2Water-saving siphon toilet

Publication Date: 2017.03.28 XIAMEN AXENT

AI summary

A water-saving siphon toilet has a toilet body and a water tank, a eject water channel used for flushing the bottom of the toilet body and a brushing water channel used for brushing the washable surface of the toilet body are arranged between the toilet body and the water tank, and a siphon channel used for pollution is arranged at the bottom of the toilet body, and a first drain valve and a overflow pipe are arranged in the water tank, the eject water channel is isolated from the outside air, and reserved water is stored in the eject water channel for assisting flush the bottom of the toilet body next time. The eject water channel of the toilet body contacts outside air only at the water seal out of the eject hole when the toilet is at non-working states.