High pressure tank
AssigneesKabushiki Kaisha Toyota Jidoshokki, Toyota Jidosha Kabushiki Kaisha
InventorsHidehito Kubo, Makoto Tsuzuki, Keiji Toh, Akiko Kumano, Daigoro Mori, Masahiko Kimbara
Life of this patent
Estimating the term…
Abstract
A high pressure tank has a cylindrical liner and a fiber reinforced plastic layer which covers the outer surface of the liner. At least one end of the liner is separable. The liner includes a cylindrical liner body and a lid. An O-ring is located between the contact surfaces of the liner body and the lid in the circumferential direction. Each contact surface has a seal surface which contacts the O-ring. One of the liner body and the lid has a deformable portion which deforms toward the seal surfaces. The structure can securely seal the separated portions of the liner when the high pressure tank is in a high pressure state.
Claims17
A high pressure tank comprising:
- a metal hollow liner for storing a gas at high pressure;
- and
- a fiber reinforced plastic layer which covers an outer surface of said liner;
- said liner including a liner body having an opening portion and a lid to be connected to said liner body in such a way as to close said opening portion;
- and
- said liner body and said lid having contact surfaces facing each other around said opening portion, with a seal member provided between the two contact surfaces and extending around said opening portion;
- wherein portions of said contact surfaces that come into contact with said seal member serve as seal surfaces, and
- one of said liner body and said lid have a deformable portion which is deformable by pressure in said liner in such a way as to direct one of said seal surfaces toward the other seal surface.
A high pressure tank comprising:
- a hollow liner for storing a gas at high pressure gas and in which an assembly is retained;
- and
- a fiber reinforced plastic layer which covers an outer surface of said liner;
- said liner including a cylindrical liner body having an opening portion in at least one axial-directional end thereof, and a lid to be connected to said liner body in such a way as to close said opening portion,
- said assembly being inserted into said liner body via said opening portion,
- said lid having a protruding portion to be fitted into said opening portion and a flange larger in diameter than said protruding portion, with a seal member provided between a peripheral surface of said protruding portion and that portion of said liner body which faces said peripheral surface,
- said liner body having an annular recess portion which surrounds said opening portion at a location corresponding to said opening portion, with an annular reinforcing portion provided in said recess portion to prevent enlarging of said opening portion.
Dependencies are inferred from the claim text.