Probe-Based Circumferential Traversing for 360-Degree Flow Mapping
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Solution Overview
Problem
Existing traversing systems for turbomachines are limited in circumferential sweep, requiring multiple probes and setups to measure a 360-degree area, and do not provide full area mapping mechanisms.
Innovation Solution
A traverse mechanism with a rotating member that rotates 360 degrees about the turbomachine's axis, incorporating a probe that extends radially into the fluid flow path and rotates with the member to enable 360-degree circumferential mapping of flow characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a single probe is used with limited circumferential rotation, then the device complexity is reduced, but the measurement area coverage is insufficient (cannot achieve 360-degree mapping)
Solution Approach 1:
The patent transitions from limited circumferential rotation to full 360-degree rotation by adding a rotational dimension to the probe's movement capability. The probe is mounted on a rotating member that can rotate completely around the turbomachine component, enabling measurement across the entire circumferential area rather than being constrained to a limited arc.
2Area of stationary object
If multiple probes are used to achieve 360-degree coverage, then the measurement area coverage is improved, but the device complexity and setup requirements increase
Solution Approach 1:
The patent combines multiple measurement capabilities into a single rotating probe assembly. Instead of using multiple stationary probes positioned at different locations, one probe is integrated with a rotating member that brings it to different circumferential positions, merging the function of multiple probes into a single moving probe system.
Solution Approach 2:
The patent transforms the measurement system from static multiple probes to a dynamic single probe that moves through rotation. The probe's position is changed dynamically by rotating the rotating member, allowing one probe to occupy multiple spatial positions sequentially rather than requiring multiple probes simultaneously.
3Area of stationary object
If a rotating member is added to enable 360-degree probe rotation, then the measurement area coverage is improved, but friction and wear increase
Solution Approach 1:
The patent introduces a bearing as an intermediary element between the rotating member and the stationary structure. The bearing facilitates smooth rotation while supporting the rotating member's weight and radial loads, reducing direct friction between contacting surfaces and minimizing wear on both the rotating member and its mounting structure.
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 single-probe, 360-degree mapping of flow characteristics such as total pressure, static pressure, temperature, and velocity components, using a sealing and anti-friction system to maintain integrity and reduce wear.
Implementation Method 1
a bearing disposed between the rotating member and the stationary member to facilitate rotation
Data Source
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AI summary
A traverse mechanism for measuring flow characteristics in a fluid flow path is provided. The traverse mechanism includes a rotating member configured to rotate 360 degrees about an axis in a circumferential direction. The traverse mechanism also includes a probe coupled to the rotating member. The probe extends in a radial direction relative to the axis through a portion the rotating member into the fluid flow path. Rotation of the rotating member enables the probe to map or measure one or more flow characteristic in the fluid flow path 360 degrees about the axis in the circumferential direction.