Banjo Fitting Seal Assembly With Orientation Straps for Leak Prevention
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Solution Overview
Problem
Existing sealing devices, such as washers, often fail to provide sufficient sealing at high-pressure hydraulic and pneumatic connections, particularly with banjo fittings, leading to fluid leaks.
Innovation Solution
A sealing device comprising a sealing ring and gasket joined by one or more straps, where the straps include an orientation indicator and optionally an RFID tag, facilitating correct installation and identification of the sealing device on fluid connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a washer is used for sealing at hydraulic connections, then the device complexity is low, but the sealing reliability is insufficient especially with banjo fittings
Solution Approach 1:
The patent combines multiple sealing functions into a single integrated sealing device. The sealing ring, gasket, and straps are merged into one assembly that works together to provide reliable sealing at banjo fittings, eliminating the need for separate sealing components while ensuring proper sealing under high pressure conditions
Solution Approach 2:
The sealing device is segmented into distinct functional components: a sealing ring for the primary sealing surface, a gasket for additional sealing, and straps for secure attachment. This segmentation allows each component to perform its specific function optimally while maintaining overall reliability without excessive complexity
2Ease of operation
If no orientation indicator is provided on the sealing device, then the manufacturing process is simpler, but the ease of operation during installation is reduced due to potential incorrect assembly
Solution Approach 1:
The patent uses visual indicators (arrows or markings) on the sealing device to indicate the correct installation orientation. These visual cues allow installers to quickly identify the proper orientation without complex instructions or tools, ensuring correct assembly while adding minimal complexity to the device structure
Solution Approach 2:
The orientation indicator is pre-marked on the sealing device during manufacturing, providing preliminary guidance before installation. This preliminary action prevents incorrect assembly by clearly indicating the correct orientation in advance, eliminating the need for complex installation procedures or tools
3Loss of information
If an RFID tag is added to the sealing device for identification, then the ability to track and identify connections is improved, but the manufacturing complexity and cost increase
Solution Approach 1:
The RFID tag acts as an intermediary between the sealing device and the tracking system. It stores and transmits identification information without requiring complex manufacturing processes for the sealing device itself, allowing easy identification and tracking while maintaining relatively simple manufacturing for the primary sealing components
Data Source
AI summary
A sealing device for banjo fittings including a sealing ring, a gasket and one or more straps attaching the sealing ring to the gasket.