Borescope Plug Tool With Guiding Sleeve for Blind Engine Access
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Solution Overview
Problem
The inconvenient location of borescope plugs within gas turbine engines makes their installation and removal difficult, often resulting in lost plugs, which can lead to increased maintenance time and potential engine damage due to blind operations.
Innovation Solution
A guiding sleeve and borescope plug tool system that provides secure alignment and access to borescope plugs, using twist-lock engagement and a spring-loaded mechanism to facilitate safe installation and removal, preventing accidental drop and ensuring visual and haptic feedback during operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If borescope plugs are installed in multiple locations within the engine to permit borescope access, then inspection capability is improved, but the location becomes inconvenient for technicians and increases the risk of lost plugs
Solution Approach 1:
A guiding sleeve is introduced as an intermediary component between the borescope plug port and the borescope plug. The guiding sleeve provides a physical channel that directs the plug during installation and removal, making the operation easier and more precise even when the plug location is not directly visible to the technician.
2Ease of manufacture
If technicians perform blind operations to remove or install borescope plugs, then plug installation is achieved, but the risk of accidentally dropping and losing the plug increases
Solution Approach 1:
The guiding sleeve acts as a protective intermediary that confines the borescope plug within its internal passage during installation and removal. This prevents the plug from accidentally dropping into the engine's air stream ducts or housing, significantly reducing the risk of loss during blind operations.
Solution Approach 2:
The guiding sleeve provides a pre-established safe pathway that cushions and protects the borescope plug before any potential drop can occur. By having this protective structure in place beforehand, the system prevents the harmful effect of plug loss rather than reacting to it afterward.
3Adaptability or versatility
If borescope plugs are located in hard-to-reach positions, then engine design flexibility is improved, but maintenance time and operational time increase
Solution Approach 1:
The guiding sleeve serves as a mediator that extends the technician's reach into hard-to-access areas. By providing a physical guide that can be inserted into the engine structure, the system enables plug installation and removal in locations that would otherwise be inaccessible or difficult to reach, maintaining engine design flexibility while reducing maintenance time.
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 system significantly reduces the risk of lost borescope plugs, enhances maintenance efficiency, and prevents engine damage by providing a secure and guided method for plug installation and removal, allowing technicians to operate with greater precision and safety.
Implementation Method 1
using twist-lock engagement and a spring-loaded mechanism to facilitate safe installation and removal
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A borescope plug system includes a housing (102), a driver (404), and a spring (106). The housing (102) includes a first housing end (102E1) and a second housing end (102E2). The housing (102) further includes a longitudinally extending centerline (102CL) extending between the first housing end (102E1) and the second housing end (102E2). The driver (404) is disposed at least partially within the housing (102) along the longitudinally extending centerline (102CL) and includes a first driver end (404E1) and a second driver end (404E2). The spring (106) is disposed within the housing (102) and couples the housing (102) to the driver (404). The driver (404) is configured to move within the housing (102), along the longitudinally extending centerline (102CL), to engage the first driver end (404E1) with a borescope plug (302) of a borescope plug port (300), and to install or remove the borescope plug (302) from the borescope plug port (300) based on a rotation of the driver (404) about the longitudinally extending centerline (102CL).