CENTRIFUGAL COMPRESSOR HAVING ADJUSTABLE INLET GUIDE VANES
First Claim
1. An apparatus for adjustment of inlet guide vanes of a compressor comprising:
- a ring having a plurality of slots spaced around a circumference thereof;
a plurality of lever arm assemblies each comprising a pin having a body with a first end and a second end and a lever arm extending perpendicularly from the second end of the body of the pin, the pin of each of the lever arm assemblies configured to be positioned within each of the plurality of slots, such that the first end of the pin extends into the slot;
a plurality of vanes each coupled to an end of one of the plurality of lever arms by a shaft; and
a rack and pinion drive mechanism comprising;
a pinion coupled to the shaft of one of the plurality of vanes, thereby creating a drive vane; and
a driven rack operationally coupled to the pinion,wherein the drive vane is configured to rotate the ring via the rack and pinion drive mechanism, thereby adjusting an angular position of the plurality of vanes.
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Accused Products
Abstract
An apparatus for adjustment of inlet guide vanes of a compressor includes a ring having a plurality of slots spaced around a circumference thereof; a plurality of lever arm assemblies each having a pin that includes a body with a first end and a second end and a lever arm extending perpendicularly from the second end of the body of the pin; a plurality of vanes each coupled to an end of one of the plurality of lever arms by a shaft; and a rack and pinion drive mechanism. The pin of each of the lever arm assemblies is configured to be positioned within each of the plurality of slots such that the first end of the pin extends into the slot. The rack and pinion drive mechanism includes a pinion coupled to the shaft of one of the plurality of vanes, thereby creating a drive vane; and a driven rack operationally coupled to the pinion. The drive vane is configured to rotate the ring via the rack and pinion drive mechanism, thereby adjusting an angular position of the plurality of vanes.
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Citations
20 Claims
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1. An apparatus for adjustment of inlet guide vanes of a compressor comprising:
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a ring having a plurality of slots spaced around a circumference thereof; a plurality of lever arm assemblies each comprising a pin having a body with a first end and a second end and a lever arm extending perpendicularly from the second end of the body of the pin, the pin of each of the lever arm assemblies configured to be positioned within each of the plurality of slots, such that the first end of the pin extends into the slot; a plurality of vanes each coupled to an end of one of the plurality of lever arms by a shaft; and a rack and pinion drive mechanism comprising; a pinion coupled to the shaft of one of the plurality of vanes, thereby creating a drive vane; and a driven rack operationally coupled to the pinion, wherein the drive vane is configured to rotate the ring via the rack and pinion drive mechanism, thereby adjusting an angular position of the plurality of vanes. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A compressor comprising:
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a casing; a rotor comprising a shaft and an impeller positioned within the casing; and a vane adjustment mechanism positioned within the casing and surrounding the rotor, the vane adjustment mechanism comprising; a ring having a plurality of slots spaced around a circumference thereof; a plurality of lever arm assemblies each comprising a pin having a body with a first end and a second end and a lever arm extending perpendicularly from the second end of the body of the pin, the pin of each of the lever arm assemblies configured to be positioned within each of the plurality of slots, such that the first end of the pin extends into the slot; a plurality of vanes each coupled to an end of one of the plurality of lever arms by a shaft; and a rack and pinion drive mechanism comprising; a pinion coupled to the shaft of one of the plurality of vanes, thereby creating a drive vane; and a driven rack operationally coupled to the pinion, wherein the drive vane is configured to rotate the ring via the rack and pinion drive mechanism, thereby adjusting an angular position of the plurality of vanes. - View Dependent Claims (9, 10, 11, 12, 13, 14, 20)
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15. A vane adjustment mechanism for a compressor comprising:
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a ring; and a plurality of vanes pivotally attached around a circumference of the ring, wherein one of the plurality of vanes is a drive vane configured to rotate the ring via a rack and pinion drive mechanism, thereby adjusting an angular position of the plurality of vanes. - View Dependent Claims (16, 17, 18, 19)
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Specification