Turbine Engine Case Mount Single Pin Connection
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Solution Overview
Problem
Conventional engine mounting configurations for turbofan gas turbine engines on aircraft pylons are cumbersome and inefficient, with multiple components required to manage various loads, leading to space constraints and increased time for attachment and detachment.
Innovation Solution
A simplified mounting system using a single pin connection between a mount bracket attached to the turbine exhaust case and the pylon, which reacts to vertical, side, torque, and thrust loads, eliminating the need for multiple links and brackets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple links and brackets are used in conventional mounting systems, then load management is achieved, but device complexity and attachment time increase
Solution Approach 1:
The patent combines multiple separate mounting components (links and brackets) into a single integrated mount bracket that attaches to the turbine exhaust case. This single bracket handles vertical loads, side loads, torque, and thrust loads that were previously managed by multiple separate components, thereby reducing device complexity while maintaining load management capability
Solution Approach 2:
The single pin connection design makes the mount bracket a multi-functional component that simultaneously manages multiple types of loads (vertical, lateral, torque, and thrust) and accommodates thermal expansion. This universal component replaces several specialized components, reducing overall system complexity while maintaining comprehensive load management
2Reliability
If multiple links and brackets are used in conventional mounting systems, then load management is achieved, but attachment and detachment time increase
Solution Approach 1:
By merging multiple mounting operations into a single attachment action, the patent reduces the time required for engine mounting and detachment. The single pin connection allows the entire mount bracket assembly to be attached or detached in one operation, whereas conventional systems required multiple separate attachment steps for each link and bracket
Solution Approach 2:
The patent segments the mounting system into two main parts: a single integrated mount bracket attached to the turbine exhaust case, and a single pin connection to the pylon. This segmentation simplifies the attachment process by reducing the number of components that need to be individually handled, thereby reducing attachment and detachment time
3Reliability
If multiple links and brackets are used in conventional mounting systems, then load management is achieved, but system weight increases
Solution Approach 1:
The patent merges multiple separate mounting components into a single integrated mount bracket, eliminating the weight of redundant components. By consolidating the functions of multiple links and brackets into one component, the overall weight of the mounting system is reduced while maintaining the capability to manage all necessary loads
Data Source
AI summary
A method for mounting a gas turbine engine having a compressor section, a combustor section, a turbine section, a pylon and a rear mount bracket, includes positioning the mounting bracket between the gas turbine engine and the pylon. The mounting bracket is connected to the turbine case reacting a least a vertical load, a side load, a thrust load, and a torque load from the gas turbine engine through the mounting bracket. The mounting bracket is attached to the pylon reacting the same loads from the gas turbine engine.