Back to results
US 4,377,272 AGranted
Airfoil stagnation point mold
AssigneeThe Boeing Company
InventorThomas A. Waldeck
Life of this patent
Estimating the term…
Abstract
A two part airfoil stagnation point mold which when the airfoil is formed therein and the two molds are separated, the residue or seam formed along the leading edge of the airfoil is positioned in a less sensitive stagnation area of the airfoil and the efficiency of the airfoil is thereby improved.
Claims4
A two part airfoil mold for forming an airfoil part therein, the mold comprising:
- a first half mold, a portion of the first half mold having a cavity therein for forming one half of the airfoil part, the front sides of the mold at one end of the cavity having a continuous contoured shape forming an uninterrupted leading edge of the airfoil part, the rear sides of the mold at the other end of the cavity forming a portion of the trailing edge of the airfoil part;
- and
- a second half mold, the second half mold indexed with the first half mold with a portion of the second half mold having a cavity therein for forming the other half of the airfoil part, the front sides of the mold at one end of the cavity formed in an area of the typical stagnation point of the airfoil, the rear sides of the mold at one end of the cavity forming the remaining portion of the trailing edge of the airfoil part.
A two part airfoil mold for forming an airfoil part therein, the mold comprising:
- an upper half mold, the lower portion of the upper half mold having a cavity therein for forming the upper half of the airfoil part, the front sides of the mold at one end of the cavity having a continuous contoured shape forming an uninterrupted leading edge of the airfoil part, the rear sides of the mold at the other end of the cavity forming a portion of the trailing edge of the airfoil part;
- and
- a lower half mold, the lower half mold indexed with the upper half mold for forming the airfoil part therein, the upper portion of the lower half mold having a cavity therein for forming the lower half of the airfoil part, the front sides of the mold at one end of the cavity formed in an area of the typical stagnation point of the airfoil part, the rear sides of the lower half mold at the other end of the cavity forming the remaining portion of the trailing edge of the airfoil part.
Dependencies are inferred from the claim text.