Jet Discharge Channel Suction Chamber for Liquid Cutting Systems

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing liquid cutting systems face issues with contamination and ineffective extraction of cutting jet components, leading to unwanted particle settlement and moisture penetration, especially when cutting food, which affects product quality and cleanliness.

Innovation Solution

A collecting and discharging device with a jet discharge channel that exits into a suction chamber, creating a suction function using flow dynamics to redirect and collect the cutting jet, preventing contamination and enhancing the extraction of cutting media and particles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional collection and discharge device is used, then the cutting jet can be collected, but turbulence occurs causing contamination of the workpiece and environment

Engineering Contradiction:

Improvecollection reliabilityVSAvoidcontamination

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

A suction channel acts as an intermediary element between the jet discharge channel and the discharge line. This suction channel extends into the suction region below the workpiece support to capture turbulent cutting jet components and particles before they can contaminate the workpiece or environment, thereby resolving the contradiction between reliable collection and preventing contamination

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention utilizes fluid dynamics principles where the high-speed cutting jet creates a suction effect in the suction region. The suction channel harnesses this hydraulic/pneumatic suction to passively draw in cutting jet components and particles, eliminating the need for active vacuum sources while effectively preventing contamination

Inventive Principle:

Principle #29Pneumatics and hydraulics

2Productivity

If additional vacuum sources are used to extract cutting jet components, then extraction effectiveness improves, but energy consumption increases

Engineering Contradiction:

Improveextraction effectivenessVSAvoidenergy consumption

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The system uses the cutting jet's own flow dynamics to create the suction effect needed for extraction. The high-speed jet passing through the jet discharge channel generates a suction region that passively draws in cutting jet components and particles through the suction channel, eliminating the need for external vacuum sources and reducing energy consumption while maintaining effective extraction

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The invention converts the harmful turbulence and kinetic energy of the cutting jet into a beneficial suction effect. The high-speed jet flow creates a low-pressure region that naturally draws in cutting jet components and particles for extraction, turning what would be wasted kinetic energy into a useful extraction mechanism

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Device complexity

If the cutting jet is discharged directly, then device complexity is reduced, but particles settle on the workpiece and contamination occurs

Engineering Contradiction:

Improvedevice structureVSAvoidparticle settlement

Core Design Contradiction:

Device complexityVSObject-generated harmful factors

Solution Approach 1:

The suction channel is nested within the collection and discharge device structure, extending from the jet discharge channel into the suction region. This nested configuration allows the system to capture particles and cutting jet components through a simple extension rather than adding a completely separate extraction system, maintaining relative simplicity while preventing particle settlement

Inventive Principle:

Principle #7Nested doll (Nesting)

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 solution enables reliable and efficient discharge of the cutting jet, preventing contamination and allowing for effective separation and reconditioning of cutting media, reducing the need for additional vacuum sources and minimizing energy consumption.

Implementation Method 1

creating a suction function using flow dynamics to redirect and collect the cutting jet

Methodology Applied

Scientific EffectFlow dynamics:

Implementation Method 2

the jet discharge channel exits into a suction chamber arranged below the outlet region... forming a suction function to a suction opening

Methodology Applied

Scientific EffectSuction: Suction

Data Source

PatentUS11518058B2Collecting and discharging device for the cutting jet of a liquid cutting system

Publication Date: 2022.12.06 NIENSTEDT GMBH

AI summary

A collecting and discharge device for the cutting jet of a fluid jet cutting system, comprises a cutting jet collector and a discharge for the cutting medium flow collected the cutting jet collector. The cutting jet collector has a jet discharge channel with an inlet region for introducing the cutting jet. The cutting jet is in flow connection with an outlet region via an discharge line. The jet discharge channel leads into a suction chamber disposed underneath the outlet region, said suction chamber having an enlarged cross section in the outlet region compared with the cross section of the jet discharge channel. The suction chamber additionally connects the jet discharge channel with the discharge line and with a suction channel as well as being otherwise closed. The suction channel provides suction at a suction opening forming a suction mouth in a suction region surrounding the inlet region of the jet discharge channel.