Liquid Aspirator Separation Chamber for Compact Air-Liquid Separation

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Solution Overview

Problem

Existing liquid vacuuming devices face issues with water drainage during rotation and require bulky temporary storage for separating liquids from air, leading to inefficiencies in structural volume and cost-effectiveness.

Innovation Solution

A liquid vacuuming device design where the intake channel empties directly into a combined separation and tank space, utilizing a flow labyrinth and a rotating or stationary separating device to divert the liquid and air mixture, ensuring effective separation and prevention of water entry into the exhaust air channel, thus optimizing structural efficiency and cost-effectiveness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate tank and separation chamber are used, then liquid separation is effective, but the device occupies larger structural volume

Engineering Contradiction:
Improveliquid separation effectivenessVSAvoiddevice structural volume
Core Design Contradiction:
ReliabilityVSVolume of stationary object

Solution Approach 1:

The patent combines the separation chamber and tank into a single integrated hollow chamber. The intake channel empties directly into this combined chamber, and the separating device is arranged within it to divert liquid flow into the tank region. This merging eliminates the need for separate components while maintaining effective liquid-air separation functionality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The hollow chamber serves multiple functions simultaneously: it acts as both the separation chamber where liquid and air are separated, and as the tank for collecting the separated liquid. The exhaust air channel also serves dual purposes by allowing air to exit while the flow labyrinth protects against water spray. This multi-functionality reduces the overall device volume.

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

2Reliability

If temporary storage is provided for liquid collection, then liquid separation is improved, but manufacturing cost increases

Engineering Contradiction:
Improveliquid separation performanceVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent merges the temporary storage function with the separation chamber into a single hollow chamber structure. The tank region is integrated within the same chamber where separation occurs, eliminating the need for separate temporary storage components. This reduces manufacturing complexity and cost while maintaining effective liquid collection capability.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If the device is designed for overhead or rotated use, then operational versatility is improved, but water drainage control becomes difficult

Engineering Contradiction:
Improveoperational position flexibilityVSAvoidwater drainage control
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent designs the hollow chamber as a closed, sealed structure that maintains its functional integrity regardless of orientation. The integrated separation and storage system ensures that liquid collected in the tank region cannot drain back into the exhaust air channel through gravity alone, as the chambers are sealed off from each other. This allows the device to be used in any position (upright, overhead, or rotated) without compromising water drainage control.

Inventive Principle:
Principle #12Equipotentiality

4Reliability

If a flow labyrinth is added to protect against water spray, then exhaust air channel protection is improved, but device complexity increases

Engineering Contradiction:
Improveexhaust air channel protectionVSAvoiddevice structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies the flow labyrinth specifically at the critical location where the exhaust air channel enters the hollow chamber. This localized protection measure is implemented only where water spray could potentially contaminate the exhaust air channel, rather than throughout the entire device. This targeted approach provides effective protection while minimizing the increase in overall device complexity.

Inventive Principle:
Principle #3Local quality

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 device effectively separates liquids from air upon intake and exit, eliminating the need for bulky storage, maintaining low energy consumption, and ensuring water does not drain back into the exhaust air channel, even when the device is rotated or used overhead.

Implementation Method 1

a flow labyrinth is provided to protect against water spray in front of the entrance to the exhaust air channel

Methodology Applied
Scientific EffectFlow labyrinth:

Implementation Method 2

a separating device arranged in the separation space, which diverts the incoming air and liquid flow in order to separate the liquid from the air

Methodology Applied
Scientific EffectFlow diversion:

Implementation Method 3

an exhaust air valve subjected to a partial vacuum for removing the air from the separation space

Methodology Applied
Scientific EffectPartial vacuum: Vacuum

Implementation Method 4

a vacuuming device which is able to vacuum a flow of air and liquid mixed with the liquid being vacuumed up along a flow pathway from the vacuuming month through an intake channel into a separation space

Methodology Applied
Scientific EffectVacuum suction: Suction

Data Source

PatentUS9021654B2Liquid aspirator for drawing off and sucking up liquids
Publication Date: 2015.05.05 LEIFHEIT
  • US9021654B2 patent drawing
  • US9021654B2 patent drawing
  • US9021654B2 patent drawing

AI summary

Liquid aspirator for drawing off and sucking up liquids, having a drawing-off lip, having a suction device for sucking up the liquid into a separating space in the housing of the liquid aspirator, having an exhaust-air channel, which is subjected to a negative suction pressure and is intended for leading the air out of the separating space, having a separating device, which is arranged in the separating space and separates the liquid from the water, and having a tank for accommodating the liquid. Complex guidance of the liquid/air stream is avoided in that the housing has a hollow chamber which forms the separating space and the tank, and into which the intake channel opens and from which the exhaust-air channel is guided out of the housing; wherein the hollow chamber contains a motor-driven rotor with a rotating impact surface, and the intake channel is designed such that the air/liquid stream is directed for radial direction reversal and acceleration onto the impact surface.