Injection Fitting Flow Cylinder for Viscous Sealant Delivery
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Solution Overview
Problem
Existing injection fittings for introducing lubricant-sealants into flow control valves are not designed for modified sealants with increased viscosity and particulates, leading to premature clogging and failure to enter the equipment effectively.
Innovation Solution
The injection fitting includes a main body with a fluid passageway, a flow cylinder, a sealing element, and a biasing element, allowing for selective sealing and fluid flow enhancement features such as flats and windows to accommodate the modified sealants, ensuring seamless operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing injection fittings are used to introduce modified sealants with increased viscosity and particulates, then the sealants should provide better sealing performance, but the fittings experience premature clogging that prevents the sealants from entering the flow control equipment
Solution Approach 1:
The injection fitting is modified with changed geometric parameters including enlarged passageways, altered angles, and reconfigured internal dimensions to accommodate the modified sealant properties (increased viscosity and particulate content), enabling reliable delivery without clogging
Solution Approach 2:
The injection fitting is divided into multiple functional segments including a body portion, a sealant delivery portion with separate passageways for different sealant types, and a needle assembly, allowing each segment to be optimized for its specific function in handling modified sealants
2Productivity
If the injection fitting is designed to accommodate modified sealants with greater viscosity and particulates, then clogging is prevented, but the device complexity increases with additional components like flow enhancement features and multiple passageways
Solution Approach 1:
The injection fitting is designed as a multi-functional device that can deliver different types of sealants (liquid and paste-based) through a single unified structure with integrated passageways, reducing the need for multiple specialized fittings while maintaining productivity
3Reliability
If a sealing element is added to selectively seal off the fluid passageway, then sealing reliability is improved, but the device complexity increases with additional sealing mechanisms
Solution Approach 1:
The sealing element is designed to be automatically actuated by the injection process itself, where the flow of sealant or the injection pressure triggers the sealing action, eliminating the need for external control mechanisms and reducing overall device complexity while maintaining sealing reliability
Data Source
AI summary
An injection fitting includes a main body, a flow cylinder, a sealing element, and biasing element. The main body has a fluid passageway therethrough. The flow cylinder is configured to be selectively secured at least partially within the fluid passageway in the main body. The flow cylinder has a fluid passageway therethrough and one or more flow enhancement features. The sealing element is configured to selectively seal off the fluid passageway in the main body and is movable between a sealing position and an open position. The biasing element is configured to bias the sealing element towards the sealing position