Swirler for mixing fuel with air in a combustion engine
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United States of America Patent
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Dec 29, 2020
Grant Date -
Mar 21, 2019
app pub date -
Apr 21, 2017
filing date -
Apr 22, 2016
priority date (Note) -
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Abstract
A swirler for mixing fuel with air in a combustion engine includes a central axis, a swirler base with an upper surface, a central portion, a number of main swirler elements and a number of obstruction elements. The main swirler elements and the obstruction elements are located at the upper surface of the swirler base and are arranged around the central portion. The main swirler elements form a number of swirler slots configured for directing a fluid towards the central portion. Each swirler slot has a slot inlet and a slot outlet, wherein the slot outlet is located at a smaller radial distance from the central axis than the swirler inlet. Each obstruction element is located at a slot inlet and configured for forming a plurality of flow channels into the swirler slot.
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