Patent ID: 11858648
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. An aircraft system comprising:
a fuel tank;
an air separation module (ASM) of a nitrogen generation system (NGS), the ASM in fluid communication with the fuel tank and disposed within an installation envelope in the aircraft; and
the ASM comprising an ASM canister having opposing ends, wherein the ASM canister fits within constraints of an installation envelope for the ASM in the NGS, and the ASM canister having installed therein an air separating membrane,
wherein:
the ASM canister, between the opposing ends, has an arcuate shape, the arcuate shape being a helix shape;
the ASM canister has a circumference C, a diameter D and a height H, and the helix shape of the ASM canister has a helix diameter DH;
a rectified length of the ASM canister is a square root of the sum of the height H squared and the circumference squared, and the circumference of the ASM canister is the diameter of the helix DH times π; and
the rectified length of the ASM canister is greater than a length L of a linear canister sized to fit within the constraints of the installation envelope if the height H of the ASM canister is equal to the length L of the linear canister.