US 12,358,640 B2
Aircraft with a multi-walled fuel tank and a method of manufacturing
Ronald Tatsuji Kawai, Rancho Palos Verdes, CA (US); and Blaine Knight Rawdon, Long Beach, CA (US)
Assigned to JETZERO, INC., Long Beach, CA (US)
Filed by JETZERO, INC., Long Beach, CA (US)
Filed on May 23, 2023, as Appl. No. 18/200,668.
Application 18/200,668 is a continuation in part of application No. 17/731,772, filed on Apr. 28, 2022, granted, now 11,697,507.
Prior Publication US 2023/0348091 A1, Nov. 2, 2023
Int. Cl. F17C 1/12 (2006.01); B64C 39/10 (2006.01); B64D 37/30 (2006.01)
CPC B64D 37/30 (2013.01) [B64C 39/10 (2013.01); B64C 2039/105 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An aircraft with at least a multi-walled fuel
tank, the aircraft comprising: a blended wing body; and
the at least a multi-walled fuel tank attached to the blended wing body and configured to store liquified gas fuel, wherein the at least a fuel tank further comprises:
an inner wall;
an outer wall; and
an interstitial volume between the inner wall and the outer wall comprising of at least a reflective film layer and at least a structural insulation layer, wherein the at least a structural layer is divided into blocks, wherein the interstitial volume comprises a gap located between the blocks of the at least a structural insulation layer; and
at least a vent fluidly connected to the interstitial volume, wherein the at least a vent is further connected to the gap, and configured to vent gas from the gap at a purge flow rate sufficient to maintain a fuel gas concentration within the interstitial volume below a threshold gas concentration.