US 12,013,084 B2
High-pressure tank unit
Yuki Kai, Nagoya (JP); and Osamu Sawai, Okazaki (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Jul. 11, 2022, as Appl. No. 17/811,705.
Claims priority of application No. 2021-115947 (JP), filed on Jul. 13, 2021.
Prior Publication US 2023/0017919 A1, Jan. 19, 2023
Int. Cl. F17C 1/06 (2006.01); F17C 1/16 (2006.01)
CPC F17C 1/06 (2013.01) [F17C 1/16 (2013.01); F17C 2201/0109 (2013.01); F17C 2201/0138 (2013.01); F17C 2203/0604 (2013.01); F17C 2205/0305 (2013.01); F17C 2223/0123 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A tank unit comprising:
a high-pressure tank including:
a liner in which a housing space for housing a fluid is formed, with an opening formed on at least one end side thereof;
a reinforcing layer formed of a fiber-reinforced resin, the reinforcing layer covering an outer peripheral surface of the liner;
a body portion having the housing space; and
a neck in which the opening is formed, the neck continuous with at least one end of the body portion; and
a connecting member having an insert portion to be inserted into the neck through the opening along an inner peripheral surface of the liner, the connecting member connected to the high-pressure tank so as to cover the opening,
wherein
the connecting member has an annular sealing member disposed between the liner and the insert portion, the annular sealing member adapted to seal the housing space,
the high-pressure tank has a tubular body disposed between the liner and the reinforcing layer, in at least a position facing the sealing member, so as to surround the outer peripheral surface of the liner, the tubular body adapted to restrict radially expanding deformation of an inner peripheral surface of the neck,
a longitudinal modulus of a material along a circumferential direction of the tubular body is higher than a longitudinal modulus of a material along a circumferential direction of the liner and is higher than a longitudinal modulus of a material along a circumferential direction of the reinforcing layer;
an end of the tubular body on a side of the body portion is positioned between the reinforcing layer and the liner,
the end radially expands away from the liner and is sharpened, and
the end is covered with a cushioning material that is softer than a material of the tubular body so that an outer peripheral surface of a portion including the end contacts the reinforcing layer via the cushioning material and an inner peripheral surface of the portion including the end contacts the liner via the cushioning material.