Motor Oil Dispensing with Hydrostatic Seal and Clean Dosing

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Solution Overview

Problem

Current motor oil dispensing systems are not resilient enough for garage environments, lead to cross-contamination, do not allow complete emptying of the package, and result in inventory inaccuracies due to inaccurate fluid measurement.

Innovation Solution

A fully recyclable fluid dispensing system comprising a container with a dosing mechanism and a fluid receptacle, featuring a hydrostatic seal and coding features to prevent cross-contamination, allowing for accurate and complete dispensing of motor oil with ergonomic design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional dispensing systems are used, then the system structure is simple, but the system is not resilient enough for garage environments and leads to cross-contamination

Engineering Contradiction:
Improvesystem resilienceVSAvoidsystem structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system is divided into separate functional components: a container with pierceable membrane, a dosing mechanism with cup feature, and a fluid receptacle. This segmentation allows each component to perform its specific function optimally while maintaining overall system reliability and preventing cross-contamination between different fluids.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The dosing mechanism acts as an intermediary between the container and fluid receptacle. It includes a cup feature that receives fluid from the container and transfers it to the receptacle, ensuring controlled dosing and preventing direct contact between different fluid sources, thereby preventing cross-contamination.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of substance

If traditional dispensing systems are used, then the device is simple to operate, but the system does not allow complete emptying of the package and leads to inventory inaccuracies

Engineering Contradiction:
Improvefluid remaining in packageVSAvoidoperational simplicity
Core Design Contradiction:
Loss of substanceVSEase of operation

Solution Approach 1:

Instead of trying to extract fluid from a closed container, the system inverts the approach by having the container with its open end face downward, allowing fluid to flow naturally into the dosing mechanism's cup feature when actuated. This inversion enables complete emptying while maintaining ease of operation through simple actuation.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The hydrostatic seal in the cup feature automatically prevents air ingress and fluid leakage without requiring active control mechanisms. The system self-regulates fluid flow based on gravity and pressure differential, enabling complete emptying while maintaining operational simplicity.

Inventive Principle:
Principle #25Self-service

3Measurement precision

If traditional dispensing systems are used, then the system structure is simple, but the system does not provide accurate fluid measurement

Engineering Contradiction:
Improvefluid measurement accuracyVSAvoiddosing mechanism structure
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system uses visual indicators (such as color-coded coding features or visual measurement markings) to indicate fluid levels and dosing amounts. This provides accurate measurement information to the user without requiring complex electronic sensors or measurement devices.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The dosing mechanism's cup feature serves as a precise intermediary that controls and measures fluid transfer. Its fixed volume design ensures accurate dosing, while the hydrostatic seal maintains measurement precision by preventing air ingress that would disrupt fluid level readings.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Reliability

If the open end of the container is submerged in fluid to form a hydrostatic seal, then the seal prevents air ingress and fluid leakage, but the structure becomes more complex

Engineering Contradiction:
Improveseal integrityVSAvoiddosing mechanism structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system uses hydraulic principles by submerging the container's open end in the fluid within the cup feature to create a hydrostatic seal. The fluid pressure itself provides the sealing force, eliminating the need for mechanical seals or gaskets and maintaining reliability without excessive complexity.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The hydrostatic seal is a self-regulating system where the fluid pressure automatically adjusts to maintain the seal. When the container is removed or fluid level changes, the seal self-adjusts based on the new pressure differential, providing reliable sealing without requiring active control or complex mechanisms.

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 system ensures complete emptying of the container, prevents cross-contamination, and provides accurate fluid measurement, making it ergonomically friendly and environmentally sustainable.

Implementation Method 1

the open end of the container is positionable submerged in the volume of fluid in the first region of the cup feature to form a hydrostatic seal

Methodology Applied
Scientific EffectHydrostatic seal: Hydraulic Press

Data Source

PatentEP3475189B1Fluid distribution and dispensing system
Publication Date: 2023.08.02 CASTROL LTD
  • EP3475189B1 patent drawingFigure 1A~1B
  • EP3475189B1 patent drawingFigure 1C
  • EP3475189B1 patent drawingFigure 2A~2B

AI summary

A fluid storage and dispensing system that safely and efficiently stores all grades of motor oil is provided. The system is configured to accurately dispense motor oil into vehicles. The system may also be used for the storage of and dispensing of other fluids.