Replaceable Fluid Container Docking Mechanism

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Solution Overview

Problem

Conventional methods for replacing engine lubricating oil in vehicles are complex and expensive, requiring access to the engine sump and the use of tools, which is not efficient for periodic maintenance.

Innovation Solution

A replaceable fluid container system with a dock that allows for easy insertion, coupling, and decoupling without tools, featuring a fastening and guiding mechanism that enables non-destructive replacement and refilling of the container, maintaining fluid communication with the engine's circulation system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional methods are used to replace engine lubricating oil, then the oil can be drained from the engine sump, but the process becomes complex and expensive requiring access to the engine sump and use of tools

Engineering Contradiction:
Improveease of fluid replacementVSAvoidcomplexity of replacement process
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The invention divides the fluid storage system into a permanent reservoir integrated with the engine and a removable container that can be easily replaced. This segmentation allows the fluid replacement process to be simplified by removing and replacing the container without needing to access the engine sump or use tools, directly resolving the contradiction between ease of operation and device complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention extracts the fluid storage function from the engine itself by providing a separate removable container that can be docked with the engine. This extraction allows the container to be replaced independently without complex engine disassembly, improving ease of operation while reducing the complexity of the replacement process

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of manufacture

If conventional methods are used to replace engine lubricating oil, then the oil can be drained from the engine sump, but hand tools and collection methods are required making the process expensive

Engineering Contradiction:
Improvecost-effectiveness of maintenanceVSAvoidsimplicity of maintenance procedure
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The removable container is designed to be self-contained with its own fluid storage and delivery mechanisms. The container can be easily removed and replaced by the vehicle operator without requiring professional service, hand tools, or special collection methods, making maintenance cost-effective and simple

Inventive Principle:
Principle #25Self-service

3Ease of operation

If a replaceable container system is implemented, then easy insertion and decoupling is achieved, but the container must maintain fluid communication with the engine's circulation system

Engineering Contradiction:
Improveease of container replacementVSAvoidfluid communication reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The container includes pre-configured fluid communication pathways and connection interfaces that are prepared in advance. The inlet and outlet ports are positioned and configured to automatically align with the engine's circulation system when the container is docked, ensuring reliable fluid communication from the moment of insertion without requiring additional setup or adjustment

Inventive Principle:
Principle #10Preliminary action

4Productivity

If the container is designed for periodic replacement, then maintenance can be performed efficiently, but seals and other disposable elements must not be damaged during replacement

Engineering Contradiction:
Improveefficiency of periodic maintenanceVSAvoidintegrity of seals and components
Core Design Contradiction:
ProductivityVSStrength

Solution Approach 1:

Instead of forcing the container onto the engine, the engine's docking structure actively receives and secures the container. The docking interfaces are designed with guiding features and positioning elements that automatically align the container correctly, preventing misalignment damage to seals and components while enabling efficient periodic maintenance

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

Data Source

PatentEP3353393B1Fluid system
Publication Date: 2020.07.01 CASTROL LTD
  • EP3353393B1 patent drawingFigure 1A~1B
  • EP3353393B1 patent drawingFigure 2A~2B
  • EP3353393B1 patent drawingFigure 3A~3C

AI summary

A replaceable fluid container for an engine or a vehicle, comprising: a fluid reservoir, at least one fluid port adapted to couple with a fluid circulation system; and an actuator, configured to be operated between a first condition and a second condition, wherein the actuator is configured, in the first condition, to enable the fluid container to be inserted into and/or held in a dock, in a seated but undocked condition, and inhibit docking of the fluid container to the dock; and wherein the actuator is further configured, when operated from the first condition to the second condition with the fluid container being in the seated but undocked condition, to enable the fluid container to dock in an engaged condition with the dock, associated docks and associated methods of supplying a fluid to a vehicle or an engine and of decoupling a fluid container from a fluid circulation system of a vehicle or an engine.