Vapor Coupler Arm Mechanism for Automatic Leak-Safe Coupling
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Solution Overview
Problem
Existing vapor couplers require independent operation of handles for secure coupling, often leading to improper connections and potential vapor leaks during refueling operations.
Innovation Solution
A vapor coupler with a biased valve and arm mechanism that automatically secures the connection when the coupler is coupled to an adapter, eliminating the need for manual handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing vapor couplers use opposed handles that must be independently operated, then the coupler can be secured, but the operation becomes complex and prone to user error leading to improper couplings
Solution Approach 1:
The patent combines two separate handle operations into a single integrated arm mechanism. The arm includes first and second arm portions that are moved simultaneously as one unit, eliminating the need for independent operation of opposed handles. This merging reduces operational complexity while maintaining secure coupling through the coordinated action of both arm portions engaging the groove.
Solution Approach 2:
The coupler design enables automatic self-coupling through the biased arm mechanism. When the coupler is inserted into the adapter, the biased arm portions automatically move into the groove without requiring manual manipulation or holding the coupler in place. The system serves itself by using the insertion motion to trigger the coupling action, eliminating user error potential.
2Reliability
If existing couplers require the coupler to be held in place during handle securing, then secure coupling can be achieved, but the operation time increases and productivity decreases
Solution Approach 1:
The arm is pre-biased in a retracted position ready to engage the groove. When the coupler is inserted into the adapter, the biased arm portions are already positioned to automatically move into the groove without requiring the operator to hold the coupler in place or perform additional securing actions. This preliminary positioning enables immediate secure coupling upon insertion.
Solution Approach 2:
The coupling action is automated through the biased arm mechanism that self-actuates during insertion. The system performs the securing function automatically as the coupler is inserted, eliminating the need for the operator to manually hold or secure the coupler, thereby reducing operation time and increasing refueling productivity.
3Reliability
If existing vapor couplers use complex handle mechanisms, then secure coupling can be achieved, but the device complexity increases
Solution Approach 1:
The patent merges multiple handle mechanisms into a single integrated arm structure. Instead of using separate opposed handles with independent operation mechanisms, the design employs one arm with first and second arm portions that function together as a unified component. This reduces the number of parts and simplifies the overall device structure while maintaining secure coupling capability.
Solution Approach 2:
The design extracts and eliminates the complex handle securing mechanisms from the coupler structure. By removing the need for opposed handles and their associated operating mechanisms, the patent simplifies the device to essentially a body with a biased arm that automatically engages, significantly reducing structural complexity while preserving reliable coupling through the groove engagement mechanism.
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
Provides a simple, intuitive, and reliable connection that ensures secure coupling without manual operation, preventing vapor leaks.
Implementation Method 1
The arm is configured to be moved to an energized position wherein the first and second arm portions are both biased radially inwardly
Data Source
AI summary
A system including an coupler configured to be coupled to an adapter, the coupler including a body defining a fluid path through which vapor is configured to flow, and a valve positioned in the fluid path. The valve is biased to a closed position and configured to be moved to an open position when the coupler is coupled to an adapter. The coupler further includes an arm coupled to the body, wherein the arm includes a first arm portion located on a first side of the body and a second arm portion located on a second, opposite side of the body. The arm is configured to be moved to an energized position wherein the first and second arm portions are both biased radially inwardly. The arm is thereby configured such that when the coupler receives the adapter, having a groove, in the coupler at a sufficient depth the first and second arm portions each move radially inwardly into the groove to thereby couple the coupler and the adapter.