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US 6,655,921 B2Granted
Rotor blade
AssigneeDeutsches Zentrum fuer Luft- und Raumfahrt e.V.
InventorFrank Kocian
Life of this patent
Estimating the term…
Abstract
In order to create a rotor blade of hybrid design comprising a vane and a blade root, the vane having a first vane portion made of a metallic material and a second vane portion made of a lightweight material, provision is made for a rear edge of the rotor blade to be formed on the second vane portion, and for the second vane portion to be joined to the first vane portion in a single-section-type manner.
Claims41
Rotor blade of hybrid design comprising:
- a vane and a blade root,
- said vane having a first vane portion made of a metallic material and a second vane portion made of a lightweight material, wherein:
- a rear edge of said rotor blade is formed on said second vane portion, and said second vane portion is joined to said first vane portion in a single-section-type manner,
- said second vane portion and said first vane portion are joined together in a joint surface formed at an area of said first vane portion and at an area of said second vane portion;
- and
- a curve formed by the section of said joint surface with a profile section is in one-to-one correspondence with the median line of said profile section.
3 more elements
Dependencies are inferred from the claim text.