Swirler having vanes provided with at least two lobes in opposite transverse directions with reference to a vane central plane
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United States of America Patent
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May 24, 2016
Grant Date -
Nov 15, 2012
app pub date -
May 11, 2012
filing date -
May 11, 2011
priority date (Note) -
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Abstract
A swirler including an annular housing with limiting walls. At least two vanes are arranged in the annular housing including the sidewalls of the swirler. The leading edge area of each vane has a profile, which is oriented parallel to a main flow direction prevailing at the leading edge position, wherein the profiles of the vanes turn from the main flow direction prevailing at the leading edge position to impose a swirl on the flow, and wherein, with reference to a central plane of the vanes the trailing edges are provided with at least two lobes in opposite transverse directions. A burner for a combustion chamber of a gas turbine including such a swirler and at least one nozzle having its outlet orifice at or in a trailing edge of the vane and to a method of operation of such a burner.
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