Urea Solution Emptying Device with Spring-Loaded Sealing
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Solution Overview
Problem
Existing devices for emptying urea solution containers into motor vehicle tanks with filler necks are complex and require separate components for each container, making them difficult to reuse across different containers.
Innovation Solution
A device with an emptying pipe, inner pipe, outer pipe, union nut, and sealing plug arrangement that allows for a detachable, liquid-tight connection to different urea solution containers, utilizing a spiral spring for opening and closing to ensure safe and complete transfer of the urea solution without leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate vent pipe is added to the emptying device, then ventilation function is improved, but device complexity increases
Solution Approach 1:
The patent combines the vent pipe and drain pipe into a single integrated emptying device structure. The vent pipe is positioned alongside the drain pipe within the same device housing, allowing both ventilation and draining functions to be performed simultaneously without requiring separate assembly operations or multiple complex components.
Solution Approach 2:
The emptying device is designed as a multi-functional unit that simultaneously provides both ventilation (through the vent pipe) and liquid drainage (through the drain pipe) capabilities. This universal design allows a single device to perform multiple functions that would otherwise require separate components, reducing overall complexity.
2Adaptability or versatility
If the device is designed for detachable connection to different containers, then adaptability is improved, but connection reliability may worsen
Solution Approach 1:
The emptying device is divided into separable components including the union nut, drain pipe assembly, and sealing elements. This segmentation allows the device to be detached from one container and reattached to another, providing adaptability while maintaining connection reliability through standardized threading and sealing surfaces designed for repeated mating and separation.
Solution Approach 2:
The device incorporates a dynamic sealing system where the sealing plug can move between positions to maintain liquid-tight connections during both connected and detached states. The spring-loaded sealing mechanism adapts to slight variations in container threading while ensuring reliable sealing when connected, and allows easy detachment when needed.
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
Enables the reuse of the device across various urea solution containers, ensuring safe and complete emptying without the need for custom connections on each container, and allows for adjustable flow rates and ventilation for complete emptying.
Implementation Method 1
an outer pipe which is movably mounted on the inner pipe under the action of spring force
Implementation Method 2
The outer tube together with the sealing plug closes the device in a liquid-tight manner in a closed position
Data Source
Figure 1
Figure 2
Figure 3~5b
AI summary
The invention relates to a device for emptying a urea solution container into a tank having a filling nozzle, comprising: a) a draining pipe (2) having a vent pipe (1), b) an inner pipe (3) in which the draining pipe (2) is received, c) an outer pipe (4) which is spring-loaded and slidably mounted on the inner pipe (3), d) a union nut (5) which bears against a first contact surface (6) of the inner pipe (3) and serves to connect the device to the urea solution container, and e) a sealing plug (7) which is arranged on the draining pipe (2) at the end of the device opposite the union nut (5), wherein in a closed position the outer pipe (4) together with the sealing plug (7) seals the device in a liquid-tight manner.while, after the outer tube (4) is moved on the inner tube (3) against the spring force, an open position of the device can be assumed, allowing a liquid passage.