Screw fluid machine, including male and female rotors
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United States of America Patent
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May 23, 2017
Issued Date -
N/A
app pub date -
Sep 17, 2013
filing date -
Sep 26, 2012
priority date (Note) -
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Abstract
The objective of the present invention is to reduce a meshing seal line length and further reduce a blowhole area. A compression side blowhole B2 is generated in a region surrounded by a male rotor side blowhole contour R1, a female rotor side blowhole contour R2, and a lower cusp line k2. By configuring a female rotor side blowhole contour R3 with a curve including at least two arcs C1 and C2, an area of the compression side blowhole B2 may be reduced. At a connection point between arcs, by making tangents of the arcs on both sides across the connection point to be the same gradient, the arcs may be smoothly connected.
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