Jet Nozzle Airflow for Closed-Container Powder Cleaning

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Solution Overview

Problem

Conventional methods for cleaning food product powder from handling apparatuses are labor-intensive and susceptible to contamination due to the need for manual removal and opening the container.

Innovation Solution

A jet nozzle system is used to direct air towards different interior surfaces of a sealable container to remove residual powder, with the air and powder being drawn out, allowing for efficient and sanitary cleaning without opening the container.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual cleaning using compressed air is used to remove powder from the container interior, then the cleaning process can be performed, but the process becomes labor-intensive and requires opening the container which causes contamination risk

Engineering Contradiction:
Improvecleaning operationVSAvoidcontainer contamination
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system enables self-contained cleaning where the container cleans itself through integrated jet nozzles and vacuum sources, eliminating the need for manual intervention and opening the container. The cleaning apparatus remains closed throughout the process, with air jets and vacuum working together to remove powder automatically.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention uses pneumatic systems with jet nozzles that direct high-velocity air streams toward the container interior surfaces to dislodge and remove powder. The system integrates pneumatic cleaning with vacuum extraction, both operating through sealed connections to maintain container closure and prevent contamination.

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Ease of operation

If the container is opened for cleaning to access the interior surface, then cleaning can be performed, but the container interior becomes susceptible to contamination

Engineering Contradiction:
Improveaccess to interior surfaceVSAvoidcontamination
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The container performs self-cleaning through integrated jet nozzles and vacuum sources that access the interior through sealed connections. The system eliminates the need to open the container by using pneumatic jets that penetrate through closed seals to deliver cleaning air and extract powder automatically.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention introduces sealed air passages and jet nozzle assemblies as intermediaries that transmit cleaning air into the container interior without requiring opening the container. These intermediary components maintain the sealed barrier while enabling the cleaning function to proceed.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If multiple jet nozzles are added to direct air towards different interior surfaces, then complete powder removal is ensured, but the device complexity increases

Engineering Contradiction:
Improvepowder removal completenessVSAvoidjet nozzle arrangement
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The cleaning system is segmented into multiple jet nozzles, each positioned to target specific interior surfaces of the container. This segmentation allows comprehensive coverage of all surfaces including ceiling, walls, and corners, with each nozzle handling a specific zone to ensure complete powder removal.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The jet nozzle system serves multiple functions: cleaning different surfaces (ceiling, walls, corners), working in coordination with vacuum sources, and operating through sealed connections. The same pneumatic infrastructure supports both air jet delivery and vacuum extraction functions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 system enables efficient and sanitary cleaning of food product powder from handling apparatuses by ensuring complete removal of powder while maintaining the container's integrity, reducing manual labor and preventing contamination.

Implementation Method 1

feeding air into the sealable container using a jet nozzle that is attached to the sealable container, with the air being directed by the jet nozzle towards the interior surface to remove product powder from the interior surface

Methodology Applied
Scientific EffectPneumatics:

Implementation Method 2

a vacuum source that is arranged to draw air out from the sealable container, such that air and the removed product powder may flow out of the sealable container via the powder outlet

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentEP4019153B1Jet nozzle for powder handling apparatus
Publication Date: 2025.08.27 TETRA LAVAL HOLDINGS & FINANCE SA
  • EP4019153B1 patent drawingFigure 1
  • EP4019153B1 patent drawingFigure 2~3
  • EP4019153B1 patent drawingFigure 4~5

AI summary

An apparatus for handling a food product powder includes a sealable container having an interior surface defining a volume in which the food product powder is handled, and a powder outlet. The apparatus includes a jet nozzle (6) that is attached to the container and configured to feed air into the container and direct the air towards the interior surface to remove product powder from the interior surface, such that the air and the removed product powder may flow out of the container via the powder outlet. The jet nozzle (6) includes a ceiling spray opening (33) formed on a first side (28) of the jet nozzle (6) and directed towards a ceiling of the interior surface, and a side wall spray opening formed on a second side (30) of the jet nozzle (6) opposite the first side (28) and directed towards a side wall of the interior surface.