Nozzle System Snap Ring Connection High Pressure Sealing
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Solution Overview
Problem
Existing nozzle systems are not suitable for high-pressure applications due to wear and tear issues and leakage problems, requiring frequent seal replacement and complex nozzle installation processes.
Innovation Solution
A nozzle system featuring a rotationally symmetrical nozzle with a form-fitting connection to a union nut via a snap ring, allowing for precise alignment and easy handling, along with a conical sealing surface and radial relief bores for enhanced sealing and leak detection, ensuring secure attachment and efficient operation at high pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the nozzle is firmly connected to the union nut by pressing into a corresponding opening, then the connection strength is improved, but the ease of manufacture deteriorates due to complex assembly requirements
Solution Approach 1:
The nozzle and union nut are merged into a single integrated component with a unified body structure. The nozzle bore is directly formed in the union nut body, eliminating the need for separate assembly steps and complex pressing operations, thereby maintaining strong connection while simplifying manufacturing.
Solution Approach 2:
The union nut serves multiple functions simultaneously: it provides the threaded connection interface for the fluid line, incorporates the nozzle bore for fluid delivery, and integrates the sealing surface. This multi-functionality reduces manufacturing complexity while ensuring robust connection.
2Reliability
If the nozzle is inserted more than half of its length into the insertion opening, then the sealing properties are improved, but the ease of operation deteriorates due to difficult handling and centering
Solution Approach 1:
The nozzle is nested within the union nut body, with the nozzle bore formed inside the union nut. This nested structure provides inherent alignment and centering, ensuring proper sealing without requiring deep insertion or complex centering operations during assembly.
Solution Approach 2:
The integrated design creates an equipotential alignment between the nozzle bore and union nut threaded bore, ensuring automatic centering and proper fluid flow alignment without requiring precise manual positioning or deep insertion.
3Adaptability or versatility
If the nozzle is made as a separate component and subsequently joined together, then the adaptability is improved for replacement, but the reliability deteriorates due to leakage risks at connection points
Solution Approach 1:
The nozzle and union nut are merged into a single monolithic component with no separation interface. This eliminates all potential leakage paths at connection points while maintaining the ability to replace the entire assembled unit as needed, thus preserving reliability without sacrificing adaptability.
Data Source
Figure 1~3
Figure 2
AI summary
A nozzle system for a device for delivering a fluid jet under pressure, comprising: a nozzle (1) with an inlet side and an outlet side and with at least one nozzle opening (2) for at least one fluid, and a union nut (3) for attaching the nozzle (1) to the end of a fluid line (4). According to the invention, the nozzle (1) is connected to the union nut (3), in particular via a positive-locking and non-removable connection by means of a snap ring.