Rotary pump having a casing being formed with a communicating hole communicating a space that is between the side plate and the wall surface of the driving machine
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United States of America Patent
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Jul 18, 2017
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N/A
app pub date -
Jan 11, 2016
filing date -
Mar 31, 2010
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Abstract
It is intended to provide a vacuum pump so that without upsizing the vacuum pump, noise and vibration are reduced, heat dissipation property is secured, and the casing is downsized. Therefore, at least one turning part is provided in an exhausting path formed in a casing body. The casing body is formed of a material whose thermal conductivity is higher than that of a rotor and vanes, and a cylinder part where the vanes slide is press fitted in the casing body.
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