Samtec Incorporated

Japan Metals & Chemicals Co., Ltd.

Hideaki Nishiwaki

Yoshiki Sakaguchi

Junzo Suzuki

Shigeru Tsunokake

Yasumasa Maeda

Naoki Sakaguchi

Shogo Watanabe

Takeshi Yamamoto

Senta Tojo

Makoto Sanada

Tatsuya Fuura

A composite container is provided where FRP layers are formed by winding FRP around a metal liner so that the dome sections are reinforced while limiting an increase in the weight. The FRP layers include a hoop layer that covers the entirety of the cylindrical section in hoop winding, and dome section reinforcing layers that also cover as least the portions of the cylindrical section near the dome sections. In the dome section reinforcing layers, FRP are wound in helical form in such a manner that the orientation angle of the FRP over the cylindrical section relative to the direction of the axis of the liner continuously changes towards the center of the cylindrical section, and thus, the weight of FRP near the center of the cylindrical section is reduced.

Composite container

[Object] A safe hydrogen storage tank in a highly reliable form where it is difficult for fatigue failure to occur is provided as a hydrogen storage tank where a cartridge is filled with a hydrogen occluding substance and contained within an integrally molded liner made of a metal. [Means for Achieving Object] A cartridgeis formed of a cartridge main body portion, a fixed side axial portionand a free side axial portion, and an integrally molded linerwhich is seamless is formed of a liner torso portion, a fixed side end portionwhere a fixed side openingis created via a portion in dome formand a free side end portionwhere a free side openingfor supporting a support plugis created via a portion in dome formin order to support a free side axial portion, in such a manner that the fixed side openingfixes and supports the fixed side axial portionand is sealed by a sealing plugwhile the free side openingis sealed by the support plug, and the free side axial portionis inserted into and supported by the recesscreated in the support plugso as to be moveable forward and backward in the direction of the axial line.

Hydrogen storage tank and manufacturing method for the same

Growing community of inventors

Kashiwara, Japan

Hideaki Nishiwaki