Propeller blade configuration
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United States of America Patent
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-
Jul 13, 1993
Grant Date -
N/A
app pub date -
Jun 11, 1991
filing date -
Jul 9, 1990
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A propeller type runner is described in which the leading edge of each blade 'leans' forward from the root in the direction of rotation to reduce cavitation and increase efficiency. The 'lean' provided to each blade of a five blade design is such that the leading edge of each blade obscures a large portion of the trailing edge of the preceding blade.
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