Linear Actuator Vacuum Pressure System for Aircraft Gyroscopes
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Solution Overview
Problem
Existing vacuum pressure systems, particularly in aircraft applications, face challenges in efficiently creating and managing vacuum pressure for gyroscopes and gas extraction from fluids, often requiring complex electrical connections and limited control over fluid and gas handling.
Innovation Solution
A vacuum pressure system utilizing a permanent magnet linear actuator with an inner and outer ferromagnetic core, which exhibits relative motion responsive to electrical current, forming vacuum pressure and facilitating the drawing and expulsion of fluids and gases through a gas permeable conduit and valve assembly, reducing the need for flexible electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional vacuum pumps are used in aircraft, then vacuum pressure can be provided for gyroscopes, but the system requires complex electrical connections and has limited control over fluid and gas handling
Solution Approach 1:
The patent extracts the essential vacuum-generating function from complex traditional vacuum pump systems and implements it through a simpler linear actuator mechanism with ferromagnetic cores and coil, eliminating the need for complex electrical connections while maintaining reliable vacuum pressure provision for gyroscopes
Solution Approach 2:
The patent replaces traditional mechanical vacuum pump systems with an electromechanical linear actuator system that uses magnetic fields (permanent magnets and coils) to create linear motion, substituting complex mechanical linkages with a more streamlined electromagnetic actuation mechanism
2Reliability
If traditional vacuum systems are used, then vacuum pressure is generated, but control over fluid and gas handling is limited
Solution Approach 1:
The patent employs a dynamically controllable linear actuator with adjustable coil activation patterns that can adapt to different fluid and gas handling requirements, enabling versatile control over vacuum pressure generation and fluid extraction operations through electrical signal modulation
Solution Approach 2:
The linear actuator system is designed to perform multiple functions including vacuum generation for gyroscopes, gas extraction from fuels, and fluid handling control, making it a universal component that replaces multiple specialized devices while enhancing adaptability
3Reliability
If complex electrical connections are used in vacuum systems, then vacuum pressure can be maintained, but operational efficiency and reliability are reduced
Solution Approach 1:
The patent removes unnecessary complex electrical connection components from traditional vacuum systems, retaining only the essential coil-electromagnet interaction needed for linear actuator operation, thereby simplifying the electrical system while maintaining vacuum pressure and improving operational efficiency
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 effectively creates and controls vacuum pressure, enabling efficient fluid and gas handling, including gas extraction from fuels, while simplifying electrical connections and enhancing cooling through direct heat transfer, thus improving operational efficiency and reliability.
Implementation Method 1
the linear actuator being operative to exhibit relative motion between the permanent magnet and the coil responsive to an electrical current being applied to the coil
Implementation Method 2
a fuel conduit having a gas permeable portion; the linear actuator being operative to exhibit relative motion between the permanent magnet and the coil responsive to an electrical current being applied to the coil such that the linear actuator forms vacuum pressure, draws gas from the conduit via the gas permeable portion
Data Source
AI summary
Vacuum pressure systems are provided. In this regard, a representative vacuum pressure system includes: an inlet; and a linear actuator having a permanent magnet, a coil, an inner ferromagnetic core and an outer ferromagnetic core, the outer ferromagnetic core surrounding at least a portion of each of the permanent magnet, the coil, and the inner ferromagnetic core; the linear actuator being operative to exhibit relative motion between the permanent magnet and the coil responsive to an electrical current being applied to the coil such that the linear actuator forms vacuum pressure and draws fluid into the inlet.