Drive device for pivoting adjustable blades of a turbomachine
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Accused Products
Abstract
A drive device for pivoting adjustable blades of a turbomachine is provided. The drive device includes an annular flow channel section surrounded by a blade carrier, the section extending along the center line of the blade carrier and blades being provided in the section in a ray-like manner, forming a ring, wherein each of the blades can be pivoted about the longitudinal axis thereof and each has a pin which extends at least into the blade carrier and is coupled to at least one adjustment ring which encloses the blade carrier and may be driven by means of at least one motor. In order to provide a particularly low-wear and reliable drive, the drive shaft of the motor or motors is coupled to the adjustment ring or adjustment rings by means of a pinion gear.
45 Citations
20 Claims
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1-10. -10. (canceled)
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11. A drive device for the pivoting of adjustable vanes of a turbomachine, comprising:
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an annular flow passage section which is encompassed by a vane carrier, extends along the center axis of the vane carrier and in which provision is made for a plurality of vanes in a radial manner, forming a ring, wherein for the adjustment, the plurality of vanes are pivotable in each case around their longitudinal axis and have in each case a pivot pin which extends at least into the vane carrier and is coupled to an adjustment ring which is rotatable in the circumferential direction and are driven via a motor, wherein a drive shaft of the motor is coupled to the adjustment ring via a pinion gear, wherein provision is made for a plurality of motors, the respective drive shaft of which comprises in each case one of the pivot pins or is rigidly connected to one of the pivot pins, wherein the respective pinion gear is arranged in each case on the pivot pin of the vane which is thus directly driven, and wherein the remaining vanes are driven via the adjustment ring. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification