Blade of a turbomachine with enlarged peripheral profile depth
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United States of America Patent
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Feb 26, 2013
Grant Date -
Jul 27, 2006
app pub date -
Nov 28, 2005
filing date -
Nov 12, 2004
priority date (Note) -
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Abstract
A blade for an axial-flow turbomachine with a gap-side blade area I which transits into a free blade end and with a hub-side or casing-side blade area II, respectively. Blade 3 forms a flow line profile section with leading edge VK and trailing edge HK which establish forward end point V and rearward end point H, respectively, by a tangent normal to and intersecting with the profile chord, with the distance between these end points being profile depth L. Blade 3 includes an enlargement of profile depth L at a tip of the free blade end which is at least +10 percent and decreases to zero in the blade central section, with the values being non-negative throughout, with the profile enlargement at trailing edge HK being larger than zero at the tip in the gap-side peripheral section.
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