Valve Injector With Nested Checks for Fluid Integrity
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Solution Overview
Problem
Existing valve injectors disrupt the fluid integrity of valves due to their design, which can lead to leakage and inefficiency in sealing and lubrication processes.
Innovation Solution
A valve injector with a body containing three internal movable checks and seats, each biased by a respective spring, allowing fluid flow when pressure is applied and returning to block flow when pressure ceases, along with a threaded connection between two body sections for adjustable operation and enhanced leak-tightness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional injector design is used, then the injector can be fitted to the valve, but the fluid integrity of the valve is disrupted
Solution Approach 1:
The injector body is divided into an outer body and an inner body that are nested within each other. The inner body is positioned inside the outer body, creating a nested structure that allows the injector to maintain fluid integrity while being fitted to the valve. This nested design enables the checks to function properly without disrupting the valve's fluid integrity.
Solution Approach 2:
The injector is segmented into multiple functional components including an outer body, an inner body, three checks, and three seats. This segmentation allows each component to perform its specific function independently, with the checks and seats working together to maintain fluid integrity while the injector remains fitted to the valve.
2Reliability
If multiple checks and seats are incorporated, then leak-tightness is improved, but device complexity increases
Solution Approach 1:
The nested structure of the inner body within the outer body allows three checks and three seats to be compactly arranged in sequence along the fluid flow path. This nesting approach enables multiple sealing points to be incorporated without proportionally increasing the overall size or complexity of the injector, as the components are space-efficiently organized within the nested configuration.
3Ease of operation
If the needle back seats when fully unscrewed, then the Y-shaped branch fits and removes properly, but space requirements increase
Solution Approach 1:
Instead of the needle back-seating when fully unscrewed as in conventional designs, this injector is designed so that the checks back-seat against the seats when the inner body is fully screwed into the outer body. This inverted operation sequence allows for more compact dimensions while maintaining proper fitting and removal functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The injector provides improved leak-tightness and fluid integrity by ensuring that fluid can pass through only when pressure is applied, and sealing when pressure is removed, reducing the risk of leakage and enhancing the operational efficiency of the valve.
Implementation Method 1
Each check is biased against a respective first, second and third seat located in the fluid conduit by a respective first, second and third biasing member
Implementation Method 2
A bias force of each of the first, second and third biasing member is such that it can be overcome by the application of a predetermined pressure in a first direction against the bias force... on the respective first, second and third check whereby said check is moved away from its seat
Data Source
Figure 1
Figure 2~4
AI summary
A valve injector (10) comprising: a body (12) defining a fluid conduit (14), the fluid conduit (14) accommodating first, second and third checks (16, 18, 20), the first check (16) being disposed within the fluid conduit (14) towards a first end (10a) of the injector (10), the second check (18) being disposed towards a second end (10b) of the injector (10), distally from the first end (10a), and the third check (20) being located between said first and second check (16, 18).