Multi-Start Fluid Coupling Threads for Fast Jam-Resistant Connection
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Solution Overview
Problem
Existing coupling connections for fluid transport, such as those used in tank trucks, are cumbersome and time-consuming to establish due to the need for multiple revolutions to create a stable screw connection, and they are prone to jamming, which can lead to damage.
Innovation Solution
The use of multi-start threads on both coupling parts allows for a secure and stable screw connection to be formed with only a few revolutions, significantly reducing the risk of jamming and enabling quick and reliable fluid transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional single-start thread is used for the screw connection, then the connection is stable and reliable, but the connection process is time-consuming and requires multiple revolutions
Solution Approach 1:
The patent changes the thread geometry parameter from single-start to multi-start configuration. This modification allows the screw connection to be formed in fewer revolutions (one-third of a revolution according to the description), significantly improving connection speed while maintaining stability through the multi-start thread design
2Reliability
If multiple revolutions are required to create a stable screw connection, then the connection is secure, but the thread and mating thread easily jam and are prone to damage
Solution Approach 1:
The patent modifies the thread configuration from single-start to multi-start, which changes the engagement characteristics. This parameter change reduces the number of revolutions needed for connection, thereby minimizing the time the threads are under load and reducing the risk of jamming and damage while maintaining connection stability
Data Source
AI summary
An arrangement having a coupling connection comprising two coupling parts. The coupling parts can be connected by means of a screw connection and form a fluid channel. On the first coupling part there is a multi-start thread as a connection means as part of the screw connection. On the second coupling part there is a multi-start mating thread as a connection means as a further part of the screw connection.