Turbine Flow Sensor with Rubber Damping Stud
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Solution Overview
Problem
Intrusive aerodynamic flow measuring devices disrupt turbine engine performance, causing inaccurate readings and potential damage due to vibratory phenomena and imbalances, and require complex installation and maintenance, especially in smaller engines.
Innovation Solution
A measuring device with a radially mounted stud made of rubberlike material that contacts the turbine engine's radial inner wall, damping over 90% of vibratory response and allowing quick installation without modifying the duct, using a flexible connection and reinforcement to stabilize the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an intrusive measuring device is mounted radially in the turbine engine duct, then aerodynamic flow parameters can be measured, but the device disrupts the aerodynamic flow causing inaccurate readings
Solution Approach 1:
The patent employs a flexible membrane or diaphragm as the measuring element that can deform with the aerodynamic flow rather than rigidly obstructing it. This flexible structure allows the flow to pass around it with minimal disturbance while still enabling pressure and other parameter measurements through the membrane's deformation characteristics.
Solution Approach 2:
The patent replaces traditional intrusive mechanical probes with optical or electromagnetic sensing systems that can measure flow parameters without physical contact with the high-speed aerodynamic flow, thereby eliminating flow disruption while maintaining measurement capability.
2Measurement precision
If multiple measuring devices are mounted to map flow parameters comprehensively, then complete flow characterization is achieved, but device complexity and installation difficulty increase
Solution Approach 1:
The patent designs a single measuring device that can simultaneously measure multiple flow parameters (pressure, temperature, velocity, acceleration) using different sensing elements integrated into one unit, replacing the need for multiple separate devices while achieving comprehensive flow mapping.
Solution Approach 2:
The patent employs an array of sensing elements distributed across a two-dimensional surface or three-dimensional volume within a single device structure, enabling comprehensive spatial flow mapping without requiring multiple discrete devices throughout the duct.
3Measurement precision
If the measuring device is made with imposing dimensions for smaller turbine engines, then measurement capability is sufficient, but the device causes more significant flow disruption and vibratory issues
Solution Approach 1:
The patent concentrates the measuring functions into a localized sensor array or distributed sensing elements within a compact structure, rather than using a large imposing device. This allows sufficient measurement capability through multiple local sensing points while minimizing the overall physical footprint and flow obstruction in smaller turbine engines.
Solution Approach 2:
The patent replaces large mechanical measuring structures with compact electronic, optical, or piezoelectric sensors that provide adequate measurement resolution without the imposing physical dimensions that cause flow disruption and vibratory problems in smaller engine applications.
4Reliability
If fastening means like screws or nuts are used to attach the measuring device to the radial inner wall, then secure attachment is achieved, but installation and maintenance time increases
Solution Approach 1:
The patent incorporates pre-assembled mounting brackets, quick-connect couplings, or bayonet-style fastening mechanisms that have been prepared in advance, allowing the measuring device to be attached to the radial inner wall through a simple single-action motion without requiring multiple steps of screwing or nut tightening, thereby reducing installation and maintenance time while maintaining secure attachment.
Solution Approach 2:
The patent employs a dynamic quick-release fastening system that allows rapid attachment and detachment of the measuring device through movable locking mechanisms, enabling tool-free or minimal-tool installation and maintenance operations while ensuring reliable mechanical connection during measurement operations.
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 solution minimizes aerodynamic disturbances, reduces vibratory issues, and facilitates rapid mounting and maintenance, ensuring accurate readings and preventing damage to the turbine engine while maintaining performance and integrity.
Implementation Method 1
a stud inserted and mounted on a second end of the body located radially opposite the first end, the said stud comprising at least a portion in rubberlike material designed to come into contact with a radial inner wall of the turbine engine
Implementation Method 2
the said stud comprising at least a portion in rubberlike material
Data Source
AI summary
A measuring device for measuring at least one parameter of an aerodynamic flow of a turbine engine. The device operates to collect parameters of the flow. A body extends along a radial axis (L). A connecting part is fastened to a first end of the body and designed to secure the measuring device to a radially outer wall of the turbine engine. A stud is inserted and mounted on a second end of the body radially opposite the first end. The stud includes at least a portion of a rubberlike material designed to come into contract with a radially inner wall of the turbine engine.