PNEUMATIC TOOL MOTOR ROTOR WITH THRUST AUGMENTATION EFFECT
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United States of America Patent
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Issued Date -
Nov 19, 2015
app pub date -
May 19, 2014
filing date -
May 19, 2014
priority date (Note) -
Abandoned
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Abstract
A pneumatic tool motor rotor with thrust augmentation effect has a rotor body in the shape of a three-dimensional cylinder having a circular wall and two end faces, and the circular wall is circularly arranged with multiple concave grooves with preset intervals. Motive blades are configured on the concave grooves, flexible on the radial direction. A power outputting shaft protrudes from the rotor body. Augmenting concave parts are formed nearby the concave grooves on the circular wall of the rotor body and include a wind guiding surface and a pushed augmenting surface, with the facing direction of the pushed augmenting surface being the same as or close to that of the motive blades. Between the pushed augmenting surface and the nearby concave groove, a separating rib is formed, and the wind guiding surface extends outside from the inner end of the pushed augmenting surface and connects with the circular wall.
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