LEAN BURN INJECTOR WITH SUPPLY LINE SWITCHING
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United States of America Patent
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Issued Date -
Jan 19, 2023
app pub date -
Jul 1, 2022
filing date -
Jul 1, 2022
priority date (Note) -
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Abstract
A lean burn fuel spray nozzle comprises: a lean burn fuel spray nozzle head comprising a pilot fuel injector with a pilot fuel injector outlet and a main fuel injector with a main fuel injector outlet; a feed arm adapted to feed pilot fuel from pilots pipework to the pilot fuel injector through a pilot fuel circuit and feed main fuel from mains pipework to the main fuel injector through a main fuel circuit; and a switching device comprising a switching valve adapted to switch between a Main On position, wherein the main fuel injector is in fluid communication with the mains pipework such that main fuel is sprayed through the main fuel injector outlet, and a Main Off position, wherein the main fuel injector outlet is not in fluid communication with the mains pipework such that main fuel is prevented to flow through the main fuel injector.
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