Method of positioning turbine stage arrays, particularly for aircraft engines
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United States of America Patent
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-
Mar 4, 2003
Grant Date -
Apr 25, 2002
app pub date -
Jul 19, 2001
filing date -
Oct 23, 2000
priority date (Note) -
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Abstract
A method of positioning arrays of stages of a turbine, particularly for aircraft engines; the turbine having an axis and a first, a second and a third array of blades arranged consecutively, and of which the first and third array have a relative velocity about the axis with respect to the second array; the method including the steps of determining the paths of wakes moving inside gaps defined by the blades in the second array and towards the third array; distinguishing, for each wake, a first and at least one second zone differing from each other; selecting one of the first and second zone; and regulating the position of the third array with respect to the first array by aligning the leading edges of the blades in the third array with the paths of the selected wake zones.
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