ROTOR DEVICE FOR A VACUUM PUMP, AND VACUUM PUMP
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United States of America Patent
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Issued Date -
Oct 6, 2016
app pub date -
Nov 5, 2014
filing date -
Nov 12, 2013
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Abstract
A rotor device for a vacuum pump comprises a rotor shaft and at least one rotor element on the rotor shaft. The rotor element contains aluminum, titanium and/or CFRP, while the rotor shaft contains a chromium-nickel steel. This makes it in particular possible to join the at least one rotor element to the rotor shaft at room temperature using a pressing process.
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