Turbomachine actuation system and method
AssigneeNuovo Pignone S.p.A.
InventorsFranco Sarri, Giuseppe Iurisci, Marco Pelella
Life of this patent
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Abstract
An actuation system includes a driving ring configured to rotate and having a groove on an internal face facing a central point of the driving ring; at least a linkage attached with a first end to an inside of the groove; and at least a lever arm attached to a second end of the at least a linkage. At least a portion of the at least a linkage stays inside the groove when the driving ring rotates.
Claims15
A turbomachine comprising:
- a casing;
- a guide vane carrier attached to the casing, the guide vane carrier having a hole configured to accommodate a shaft;
- a driving ring facing the guide vane carrier and configured to rotate relative to the guide vane carrier, the driving ring having a groove on a face facing the shaft;
- at least one linkage attached with a first end to an inside of the groove and wherein the first end is moveable within the driving ring in a direction substantiality concentric to the driving ring;
- at least one lever arm attached to a second end of the at least one linkage;
- and
- at least one vane supported by the guide vane carrier and attached to the at least one lever arm, the at least one vane configured to rotate relative to the guide vane carrier when the driving ring rotates,
- wherein at least a portion of the at least one linkage stays inside the groove when the driving ring rotates.
An actuation system for a turbomachine for adjusting guide vanes, the actuation system comprising:
- a driving ring configured, to rotate and having a groove on an internal face facing a central point of the driving ring;
- at least one linkage attached with a first end to an inside of the groove and wherein the first end is moveable within the driving ring in a direction substantially concentric to the driving ring;
- and
- at least one lever arm attached to a second end of the at least one linkage,
- wherein at least a portion of the at least one linkage stays inside the groove when the driving ring rotates.
A method for assembling an actuation system for a turbomachine for adjusting guide vanes, the method comprising:
- attaching a first end of at least one linkage to an inside of a groove formed in a driving ring wherein the first end is configured to be moveable within the driving ring in a direction substantially concentric to the driving ring, the groove being on an internal face facing a central point of the driving ring;
- and
- connecting at least one lever arm to a second end of the at least one linkage,
- wherein at least a portion of the at least one linkage is inside the groove when the driving ring rotates.
Dependencies are inferred from the claim text.