US 11,926,432 B2
Fuel tank dam
Eizaburo Yamaguchi, Tokyo (JP); Tadasuke Kurita, Nagoya (JP); Hajime Tada, Tokyo (JP); Akihiko Hirota, Tokyo (JP); Akihisa Okuda, Tokyo (JP); and Kana Sakon, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 17/046,640
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
PCT Filed May 21, 2019, PCT No. PCT/JP2019/020004
§ 371(c)(1), (2) Date Oct. 9, 2020,
PCT Pub. No. WO2020/017144, PCT Pub. Date Jan. 23, 2020.
Claims priority of application No. 2018-136771 (JP), filed on Jul. 20, 2018.
Prior Publication US 2021/0107673 A1, Apr. 15, 2021
Int. Cl. B64D 37/08 (2006.01); B64C 3/34 (2006.01); B64D 37/00 (2006.01); B64D 37/32 (2006.01)
CPC B64D 37/08 (2013.01) [B64C 3/34 (2013.01); B64D 37/005 (2013.01); B64D 37/32 (2013.01); B64D 2037/325 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A fuel tank dam that closes a gap between a first structural component fixed to an inner surface of an outer plate of a fuel tank and a second structural component having a cutout portion into which the first structural component is inserted, the fuel tank dam comprising:
a first section which is formed to be fixed to the first structural component;
a second section having a surface extending in a direction intersecting with the first section, and which is formed to be fixed to the second structural component; and
a third section having bellows provided with at least one folded portion, and disposed between the first section and the second section,
wherein the first section, the second section, and the third section are integrated,
wherein a deformation rate of the bellows, which is a ratio of a deformation amount of the bellows to a deformation amount of the fuel tank dam in a longitudinal direction thereof when a constant load is applied to the surface of the second section in the longitudinal direction, is 60% or more, and
wherein T3 is equal to or more than 0.508 mm and is less than 1.524 mm, and T2 is equal to or less than 4.064 mm, where a thickness of the bellows is the T3, and a thickness of the second section is the T2.