US 12,449,093 B2
Pressure vessel
Xiankai Song, Livonia, MI (US); Sami Siddiqui, Livonia, MI (US); and Longhan Chen, Livonia, MI (US)
Assigned to WAL Fuel Systems USA Inc., Livonia, MI (US)
Filed by WAL Fuel Systems USA Inc., Livonia, MI (US)
Filed on Jul. 14, 2023, as Appl. No. 18/352,582.
Prior Publication US 2025/0020279 A1, Jan. 16, 2025
Int. Cl. F17C 1/08 (2006.01); B60K 15/03 (2006.01)
CPC F17C 1/08 (2013.01) [B60K 15/03006 (2013.01); B60K 2015/03059 (2013.01); B60K 15/03177 (2013.01); B60K 2015/03493 (2013.01); F17C 2201/0109 (2013.01); F17C 2201/0166 (2013.01); F17C 2203/012 (2013.01); F17C 2203/066 (2013.01); F17C 2209/22 (2013.01); F17C 2270/0168 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pressure vessel comprising:
a body extending between a first end and a second end, the body comprising:
a center column defining a first inner volume extending between the first end and the second end; and
a wall coupled to the center column, wherein the wall surrounds the center column and defines a second inner volume therebetween, and wherein the second inner volume is disposed annularly around, and fluidly separate from, the first inner volume, wherein the body is formed of a polymeric material and is configured to maintain structural integrity when internal pressure exceeds external pressure such that the first inner volume and the second inner volume retain each shape and are each fixed;
a first end cap coupled to the center column at the first end and configured to close off the first inner volume at the first end; and
a second end cap coupled to the center column at the second end and configured to close off the first inner volume at the second end.