Bifurcation Electrical Routing for Hybrid Aircraft EMI Isolation
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Solution Overview
Problem
Existing aircraft propulsion systems lack an efficient and integrated electrical system that effectively manages high and low power components, leading to potential electromagnetic interference and inefficient power distribution.
Innovation Solution
A bifurcated electrical system is implemented, with high power components routed along one direction and low power components along another, separated by a non-conductive barrier, and integrated with fluid lines, to minimize electromagnetic interference and optimize power distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If high power and low power electrical components are integrated in the same electrical system, then the system structure is simplified, but electromagnetic interference occurs between high power and low power components
Solution Approach 1:
The electrical system is segmented into two separate systems: an inner electrical system for high power components and an outer electrical system for low power components. This segmentation physically separates the components to eliminate electromagnetic interference while maintaining overall system functionality.
Solution Approach 2:
Electrical lines serve as intermediaries to connect the inner and outer electrical systems. These lines transmit power and signals between the separated high power and low power components, enabling communication and power transfer without direct contact between the conflicting systems.
2Productivity
If electrical lines are routed through the bifurcation, then power distribution is improved, but the routing path becomes more complex
Solution Approach 1:
The electrical lines utilize the radial dimension by extending through the bifurcation structure. This dimensional approach allows efficient power distribution from the engine core to both inner and outer electrical systems while organizing the routing path in a structured manner.
3Object-affected harmful factors
If high power components are separated from low power components, then electromagnetic interference is reduced, but the system configuration becomes more complex
Solution Approach 1:
The inner electrical system is nested within the overall propulsion system architecture, with the outer electrical system surrounding it. This nested configuration allows clear separation of high power and low power components while maintaining an integrated overall system structure.
Data Source
AI summary
A system for an aircraft includes a fan rotor, an engine core, a fan case, a core case, a bifurcation, an inner electrical system, an outer electrical system and multiple electrical lines electrically coupling the inner electrical system to the outer electrical system. The engine core is configured to drive rotation of the fan rotor about an axis. The fan case houses the fan rotor. The core case houses the engine core. The bifurcation radially crosses a bypass flowpath. The bypass flowpath is downstream of the fan rotor and located radially between the fan case and the core case. The inner electrical system is arranged with the engine core. The outer electrical system is mounted to the fan case. The electrical lines extend between and electrically couple the inner electrical system to the outer electrical system. The electrical lines run in parallel along one another radially through the bifurcation.