Magnetic filter that does not clog the lubrication system of aircraft jet engine gearboxes.
◆High-speed rotating jet engines operate in harsh environments. The important gearbox that assists the jet engine in functioning properly. Lubricating oil must always be supplied to each mechanism and circulate smoothly. The challenge was how to efficiently remove submicron-level hard metal particles suspended in the lubricating oil. ◆Introduction Story The development project for a magnetic filter for the lubrication line of the gearbox, which is essential for jet engines, started upon receiving a development request from Rolls-Royce. After more than 10 years of extensive research and testing, it finally received certification as official equipment. And it was eventually adopted for the Trent 500 turbofan jet engine for the Airbus A340. The magnetic filter, Magnum, contributes to the safety of air travel.
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**Structure** The accumulation zone is sandwiched between plates made of yoket iron, generating a strong magnetic flux. Additionally, the accumulation zone and the flow path are completely independent, so even if contaminants accumulate, they do not block the flow path. Moreover, not blocking means that contaminants are not exposed to the flow, preventing any re-release. This structure captures submicron contaminants that can cause significant damage to equipment while avoiding clogging or re-release, which could lead to new equipment troubles.
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[Applications] ■ Hydraulic systems ■ Large transmissions ■ Automobiles and motorcycles ■ Water cooling and heating systems ■ Processing machines and machine tools
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