Fuel Supply Nozzle Sealing Structure for Rapid Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional fuel supply nozzle installation methods require additional fastening structures and processes, increasing manufacturing costs and time due to the need for extra components to securely attach nozzles to the combustor's rear end.
Innovation Solution
A fuel supply nozzle unit with a threaded structure on the nozzle's rear end and corresponding threaded holes in the combustor, along with sealing members and a washer with protrusions, allowing for quick assembly and disassembly without additional components, enhancing sealing and fixing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional fastening structures are used to fix nozzles to the combustor, then the connection reliability is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the fastening function and sealing function into a single integrated nozzle structure. The threaded portion on the nozzle rear end serves both to secure the nozzle to the combustor and to provide a sealing interface, eliminating the need for separate fastening components and reducing overall device complexity while maintaining connection reliability
Solution Approach 2:
The nozzle rear end is designed with multi-functionality: the threaded portion provides both mechanical fastening and sealing capabilities. This universal design allows a single component to fulfill multiple functions that would traditionally require separate parts, thereby reducing device complexity without compromising reliability
2Strength
If additional fastening structures and processes are used, then the connection strength is improved, but the productivity decreases due to longer assembly time
Solution Approach 1:
By merging the fastening and sealing functions into the nozzle's threaded portion, the patent reduces the number of assembly steps. The nozzle can be directly threaded into the combustor mounting hole, eliminating the need for separate fastening operations and thereby improving productivity while maintaining connection strength
Solution Approach 2:
The threaded portion and sealing surface are pre-integrated into the nozzle manufacturing process. This preliminary action ensures that the nozzle is ready for immediate installation with built-in fastening and sealing capabilities, reducing on-site assembly time and improving productivity without compromising connection strength
3Reliability
If additional components are used for fastening, then the sealing effect is improved, but the ease of manufacture deteriorates
Solution Approach 1:
The patent merges the sealing function into the nozzle's threaded portion by providing a sealing surface on the threaded structure. This integration eliminates the need for separate sealing components, simplifying the manufacturing process and improving ease of manufacture while maintaining effective sealing
Solution Approach 2:
The threaded portion is designed to serve multiple functions simultaneously: mechanical fastening and sealing. This universal design reduces the total number of components that need to be manufactured and assembled, thereby improving ease of manufacture while ensuring reliable sealing effect
Data Source
AI summary
A fuel supply nozzle unit includes a fuel supply nozzle, a rear end and an end plate. The fuel supply nozzle includes a front end that has a plurality of fuel supply holes. The rear end extends from the front end and is formed with a threaded portion on its outer surface. The end plate is connected to the rear end and is formed with a plurality of threaded holes.