Magnetic Scraper Propulsion for Leak-Safe Fluid Spraying
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Solution Overview
Problem
Fluid projection installations face risks of leakage due to actuators passing through casings, which can lead to wear, impact, or overpressure, compromising the integrity of the system while also risking contamination of fluids when switching between different fluids.
Innovation Solution
A fluid projection installation with a scraper that uses magnetic forces to move between a storage volume and a conduit, eliminating the need for an external actuator to pass through the casing, thereby reducing leakage risks and maintaining low contamination risk by using a magnetically driven scraper system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an actuator is used to push the scraper from storage to the conduit, then the scraper can be moved reliably, but the casing must have an opening for the actuator which creates leakage risk
Solution Approach 1:
The patent replaces the mechanical actuator system with a magnetic field-based propulsion system. Magnets embedded in the scraper interact with magnets in the enclosure walls to propel the scraper without mechanical contact through the casing, eliminating the opening and associated leakage risks while maintaining reliable scraper movement.
Solution Approach 2:
The magnetic field serves as an intermediary between the enclosure system and the scraper. Instead of direct mechanical contact through an opening, the magnetic field transmits force across the enclosure wall, enabling scraper movement without compromising the casing integrity.
2Ease of operation
If the casing has an opening for actuator passage, then the scraper can be propelled, but the opening creates vulnerability to wear, impact, and overpressure
Solution Approach 1:
The patent eliminates the need for a physical opening in the casing by substituting mechanical propulsion with magnetic propulsion. The scraper is propelled through magnetic interaction with the enclosure walls, maintaining full casing integrity and eliminating vulnerability points from openings.
3Volume of stationary object
If a rigid enclosure is used for scraper storage, then the storage volume is well-defined, but the actuator opening compromises the enclosure integrity
Solution Approach 1:
The patent maintains the rigid enclosure structure for well-defined storage volume while eliminating the compromising opening by using magnetic fields for scraper propulsion. The magnets are integrated into the enclosure walls without creating openings, preserving both volume definition and structural integrity.
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 magnetic scraper system effectively moves the scraper without external actuators, reducing leakage risks and maintaining low contamination levels between fluid changes, enhancing the reliability and efficiency of fluid projection installations.
Implementation Method 1
the enclosure including a second magnet suitable for exerting on the first magnet a first force tending to move the scraper from the storage volume to the conduit
Data Source
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AI summary
The invention relates to an apparatus for spraying a fluid, comprising a pipe (15), a scraper (20) capable of moving in the pipe (15) and a casing (24) defining a storage volume (60) for accommodating the scraper (20) in a position for storing the scraper (20), the scraper (20) being configured to push fluid in front of it which is present in the pipe (15) when the scraper (20) moves in the pipe, the storage volume (60) being in fluid communication with the pipe (15) and being configured to allow the scraper (20) to move between the storage volume (60) and the pipe (15). The scraper (20) comprises a first magnet (50) and the casing (24) comprises a second magnet (70) capable of exerting a first force on the first magnet (50) to move the scraper (20) from the storage volume (60) to the pipe (15).