Impeller for a rotor of a turbomachine, and rotor and turbomachine having an impeller of said type
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United States of America Patent
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Feb 27, 2018
Issued Date -
N/A
app pub date -
Feb 25, 2013
filing date -
Mar 7, 2012
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An impeller for a rotor of a turbomachine includes: a wheel disc mounted on the rotor, the wheel disc having plural grooves arranged along a circumference of the wheel disc and extending in the thickness direction of the wheel disc. A toothed profile is formed on two sides of each groove. A plurality of impeller blades each have one root with two sides on each of which one toothed profile is formed. Each blade is inserted into a groove so as to form a blade-groove combination with the toothed profiles of the root and of the groove in engagement. Each combination having a fixing device that fixes the blade in the groove in the thickness direction and in the radial direction of the wheel disc. Each fixing device has a recess movably received in the groove base.
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