Roots-type blower rotor alignment method
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United States of America Patent
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Oct 28, 2014
Issued Date -
N/A
app pub date -
Jun 21, 2013
filing date -
Nov 3, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A method of aligning the rotors of a Roots-type blower includes the steps of immobilizing an idler gear with reference to a housing of a Roots-type blower. A drive rotor is fixedly disposed on a drive shaft inside the housing with an idler rotor engaged with the drive rotor and fixedly disposed on an idler shaft. A drive gear is rotatably disposed on the drive shaft and the idler gear is engaged with the drive gear and fixedly disposed on the idler shaft. The drive shaft is rotated in opposite directions to first and second extents of travel. Each extent of travel is defined by contact of the drive rotor against the idler rotor. The drive shaft is positioned at a determined rotational angle between the first and second extents of travel and the drive gear is then fixed to the drive shaft.
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