Fastening rotor blades in a turbomachine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Sep 6, 2001
app pub date -
Feb 28, 2001
filing date -
Mar 1, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The rotor blades of a turbomachine are fastened to the rotor (3) of the machine by means of blade roots (1) by the blade roots (1) being anchored in peripheral grooves (2). According to the invention, the blade roots (1) have at least one recess or opening (4), which extends in the peripheral direction and in each of which a connecting piece (5) is arranged. This connecting piece (5) connects at least two blade roots (1) to form a blade pack. By means of the connection, the blade roots (1) are secured against twisting and falling out of the peripheral groove (2). The connecting piece (5) consists of a shaped piece, which is laid with little clearance into the recess or opening (4), a displacement of a blade root (1) and of the connecting piece (5) relative to one another still being possible. The blade root of the last blade of a blade row which is assembled in a peripheral groove is locked to the adjacent blade roots by a final connecting piece.
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