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US 7,682,128 B2Granted
Axial fan having adjustable blades and method of mounting the blades
AssigneeTLT-Turbo GmbH
InventorFrank Kinzer
Life of this patent
Estimating the term…
Abstract
An axial fan comprising an impeller provided with a supporting ring on which is disposed an adapter. Spindles are rotatably mounted in the supporting ring, and adjustable blades are connected to the spindles. A support is provided for each spindle and is comprised of a roller bearing that rests against an inner side of the supporting ring, and of a bushing that rests against an inner side of the adapter. A tubular nut is threaded onto the outer end of the spindle to fix it in the supporting ring.
Claims4
An axial fan, comprising:
- an impeller that is provided with a supporting ring;
- an adapter disposed on said supporting ring;
- spindles that are rotatably mounted in said supporting ring;
- adjustable blades that are connected to said spindles;
- means for suporting each spindle comprised of a roller bearing that rests against an inner side of said supporting ring, and of a bushing that rests against an inner side of said adapter;
- and
- a tubular nut that is adapted to be threaded onto an outer end of said spindle for fixing said spindle in said supporting ring, wherein a base of each blade is secured directly to said tubular nut.
4 more elements
An axial fan, comprising:
- an impeller that is provided with a supporting ring;
- an adapter disposed on said supporting ring;
- spindles that are rotatably mounted in said supporting ring;
- adjustable blades that are connected to said spindles;
- means for supporting each spindle in said supporting ring and comprised of a roller bearing and a bushing, wherein said roller bearing rests against an inner side of said supporting ring, and wherein said bushing rests against an inner side of said adapter;
- and
- a tubular nut that is adapted to be threaded onto an outer end of said spindle for fixing said spindle in said supporting ring, wherein said outer end of said spindle projects out of said adapter and is provided with a thread for receiving said tubular nut.
4 more elements
Dependencies are inferred from the claim text.