Conical Water Trap Vortex Flushing for Tankless Toilets

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Solution Overview

Problem

Traditional toilets require a bulky water tank due to insufficient water flow from typical household pipes, making them inefficient and space-consuming, as they struggle to effectively flush the water trap without a tank.

Innovation Solution

A toilet design featuring a conical water trap with a narrow inlet and a wider outlet, utilizing tangentially generated water jets to create a vortex that efficiently moves particles from the inlet to the outlet, reducing the need for a water tank by using the household water supply directly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If a water tank is used to store flush water, then sufficient water flow for flushing is achieved, but the toilet becomes bulky and space-consuming

Engineering Contradiction:
Improvewater flow quantityVSAvoidtoilet volume
Core Design Contradiction:
Quantity of substanceVSVolume of moving object

Solution Approach 1:

The patent changes the geometric parameters of the water trap by implementing a conical shape with increasing diameter from inlet to outlet. This parameter change optimizes the flow dynamics, allowing efficient flushing with lower water quantities, thereby eliminating the need for a large water tank and reducing overall toilet volume.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies curved surfaces by designing the water trap as a conical structure with smooth curved transitions. This curvature optimizes water flow patterns, creates effective vortex motion, and improves particle transport efficiency, enabling tankless operation with reduced water consumption.

Inventive Principle:
Principle #14Spheroidality (Curvature)

2Productivity

If traditional water trap design is used, then结构简单 is maintained, but efficient emptying of particles cannot be achieved with low water flow

Engineering Contradiction:
Improveflushing efficiencyVSAvoidwater flow quantity
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The patent implements parameter changes by transitioning from a traditional cylindrical water trap to a conical design with increasing diameter. This geometric parameter change enhances the vortex effect and centrifugal forces, significantly improving particle separation and transport efficiency with reduced water flow quantities.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent utilizes hydraulic principles by designing the conical water trap to optimize water flow dynamics. The increasing diameter creates controlled vortex flow and centrifugal forces that efficiently separate and transport particles, achieving high flushing efficiency with minimal water consumption.

Inventive Principle:
Principle #29Pneumatics and hydraulics

3Productivity

If the conical part has increasing diameter towards outlet, then particle emptying efficiency is improved, but manufacturing complexity increases

Engineering Contradiction:
Improveparticle emptying efficiencyVSAvoidmanufacturing ease
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent applies parameter changes by defining the conical shape with specific diameter variations along the length. This geometric optimization improves particle emptying efficiency while maintaining manufacturability through standard conical forming processes, balancing performance enhancement with manufacturing feasibility.

Inventive Principle:
Principle #35Parameter changes

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 design allows for effective flushing with reduced water flow, minimizing material usage, space requirements, and maintenance, while ensuring efficient emptying of the water trap, even at typical household water flow rates.

Implementation Method 1

The water trap has the form of a cone which is tapered towards the inlet. The vortex is generated in a narrow inlet portion of the cone and is spreading towards a wide outlet portion.

Methodology Applied
Scientific EffectVortex: Vortex Ring

Implementation Method 2

Due to the increasing diameter toward the outlet of the cone, the shape and the centrifugal force contributes to having particles and water moving faster towards the wide end of the cone.

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentEP3047076B1A toilet including a water trap having a conical part
Publication Date: 2020.10.28 CDUP
  • EP3047076B1 patent drawingFigure 1~6
  • EP3047076B1 patent drawingFigure 7~8

AI summary

The present invention relates to a toilet comprising a bowl (1), a water trap (2) including a conical part (2) in the form of a curved cone with an inlet (3) connected to the bowl and an outlet (4), and a flushing system (6) comprising at least one nozzle (7a) adapted to flush clean the water trap by generating a vortex of water in the conical part. The conical part is designed with increasing diameter in a direction towards the outlet, wherein the diameter of the outlet of the conical part is larger than the diameter of the inlet of the conical part.