Universal Pneumatic Probe for Fluid Level Detection
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Solution Overview
Problem
Traditional probing systems for checking fluid levels in vehicular reservoirs are limited by the need for dedicated probes for specific reservoirs and fluids, which can lead to cross-contamination and are not adaptable to different reservoir shapes and volumes.
Innovation Solution
A pneumatic probe-based system with a port adaptor and pneumatic core that is universal across different reservoirs and fluids, using a reconfigurable insertion head and movable backstop to make a contactless pneumatic connection with the headspace through the port, preventing cross-contamination and accommodating various reservoir designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional probing systems use dedicated probes for specific reservoirs or fluids, then measurement precision and reliability are improved, but device complexity and cross-contamination risks increase
Solution Approach 1:
The probing system employs a universal probe design that can interface with multiple different reservoir types and fluids through a single device. The probe includes adaptable components such as a port adaptor with reconfigurable insertion head that can accommodate various port configurations, eliminating the need for dedicated probes for each reservoir type while maintaining measurement capability across diverse applications.
Solution Approach 2:
The probe incorporates dynamic, reconfigurable elements including an insertion head that can change configuration to match different port types. The backstop mechanism allows the probe to adapt its insertion depth and positioning dynamically based on the specific reservoir being measured, enabling a single probe to serve multiple functions across different fluid levels and reservoir geometries.
2Ease of operation
If traditional probing systems use contact-based probes, then measurement capability is improved, but cross-contamination between different fluids occurs
Solution Approach 1:
The system replaces direct mechanical contact between the probe and fluid with a pneumatic field-based measurement approach. The probe introduces pneumatic pressure or flow through the port to sense fluid level without the probe elements physically touching the fluid, thereby eliminating cross-contamination risks while maintaining accurate level detection capability.
Solution Approach 2:
The port adaptor serves as an intermediary component that interfaces between the probe and the reservoir port. It provides a sealing connection and transmission pathway for pneumatic signals while preventing direct contact between the probe and fluid, acting as a barrier that enables measurement without contamination.
3Adaptability or versatility
If a universal probe design is used, then adaptability across different reservoirs is improved, but manufacturing precision and reliability may worsen
Solution Approach 1:
The probe design incorporates locally optimized features including a reconfigurable insertion head with specific geometries tailored for different port types, and a backstop mechanism with adjustable positioning. These localized adaptations allow the universal probe to achieve consistent, reliable measurements across different reservoir configurations by optimizing the interface characteristics for each specific application.
Solution Approach 2:
The probe system enables parameter adjustments such as insertion depth, port adaptor configuration, and pneumatic pressure levels to be changed based on the specific reservoir being measured. These parameter modifications allow the universal probe to maintain measurement reliability and consistency across different fluid types and reservoir geometries by adapting its operating conditions to match each application.
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
Enables accurate and non-invasive fluid level determination across different reservoirs and fluids without the need for dedicated probes, ensuring compatibility and preventing cross-contamination, thus improving quality assurance in vehicle manufacturing.
Implementation Method 1
a pneumatic core for making a pneumatic connection with the headspace through the port
Data Source
AI summary
A pneumatic probe includes a port adaptor and a pneumatic core. The port adaptor includes an insertion head that includes a hook, and a backstop alongside the insertion head behind, and in spaced opposition with, the hook. The insertion head is reconfigurable between an expanded configuration and a contracted configuration. The backstop is movable, along the insertion head, between an extended position and a retracted position, in which the backstop is respectively advanced toward the hook and backed away from the hook. The pneumatic core includes a downtube extending through the insertion head, and a blocker on the downtube interfaced with the insertion head. The downtube is movable, through the insertion head, between a blocking position and an unblocking position with respect to the insertion head.