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US 2019/0247786 A1Published application
Centrifugal air separator coil manufacturing methods
AssigneeThe Boeing Company
InventorsPaul F. Thieben, JR., Robert French, John Suarez
Life of this patent
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Abstract
Methods for forming thin wall tubing into a tightly-coiled helical duct comprise selecting a thin wall tube with an outside tube diameter and a wall thickness that is less than 15% of the outside tube diameter; and bending the thin wall tube to form the tightly-coiled helical duct so that an outside duct diameter of the tightly-coiled helical duct is less than four times the outside tube diameter.
Claims22
A method for forming thin wall tubing into a tightly-coiled helical duct, the method comprising:
- selecting a thin wall tube with an outside tube diameter and a wall thickness that is less than 15% of the outside tube diameter;
- and
- bending the thin wall tube to form the tightly-coiled helical duct so that an outside duct diameter of the tightly-coiled helical duct is less than four times the outside tube diameter.
Dependencies are inferred from the claim text.