Cross-sectional profile for the struts or the fairing of struts and service lines of a turbofan engine
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United States of America Patent
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Sep 3, 2013
Grant Date -
Jan 27, 2011
app pub date -
Jul 14, 2010
filing date -
Jul 23, 2009
priority date (Note) -
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Abstract
The aerodynamically shaped, symmetrical cross-sectional profile for the struts or the fairing (7) of struts and service lines in the bypass duct and the core-flow duct of a turbofan engine is defined by a course of the local thickness (T) and a position of maximum thickness (PMT) on both sides over the central chord (C) extending from the leading edge (LE) to the trailing edge (TE) of the strut or fairing (7). In order to avoid flow separations the course of the local thickness (T) between the position of maximum thickness (PMT) and a trailing-edge position (PTE), which is at 95 percent of the chord length, has a first turning point (WP1) with a trailing-edge thickness (TET) and a subsequent second turning point (WP2).
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