The present disclosure generally relates to a venting system that includes a wall of a lid or a container. The lid or container defines a central longitudinal axis, and a line segment that is measured from the longitudinal axis to an outermost surface of the lid or container, and a pressure relief feature that is disposed along the lid or container. The pressure relief feature includes a thinned region of the lid or container that defines a minimum thickness that is less than 40% of a maximum thickness of the respective lid or container.

A high-pressure tank includes a liner, a fiber layer, and a protective layer. The liner has an internal space to store a fluid. The fiber layer includes fibers wound around an outer surface of the liner, and a thermosetting resin that has been cured and covers surfaces of the fibers. The protective layer includes a porous member disposed on the fibers, the porous member having a plurality of pores extending through the porous member in a thickness direction of the porous member. The thermosetting resin has entered the pores.

The present disclosure generally relates to a venting system that includes a wall of a lid or a container, the lid or container defining a central longitudinal axis, and a line segment that is measured from the longitudinal axis to an outermost surface of the lid or container, and a pressure relief feature that is disposed along the lid or container. The pressure relief feature includes a thinned region of the lid or container that defines a minimum thickness that is less than 40% of a maximum thickness of the respective lid or container. The pressure relief feature extends at least 180 degrees about the longitudinal axis, and the pressure relief feature is located at a distance from the longitudinal axis of more than 80% of the line segment.

The present disclosure generally relates to a venting system that includes a wall of a lid or a container, the lid or container defining a central longitudinal axis, and a line segment that is measured from the longitudinal axis to an outermost surface of the lid or container, and a pressure relief feature that is disposed along the lid or container. The pressure relief feature includes a thinned region of the lid or container that defines a minimum thickness that is less than 40% of a maximum thickness of the respective lid or container. The pressure relief feature extends at least 180 degrees about the longitudinal axis, and the pressure relief feature is located at a distance from the longitudinal axis of more than 80% of the line segment.

A high-pressure tank includes a liner, a fiber layer, and a protective layer. The liner has an internal space to store a fluid. The fiber layer includes fibers wound around an outer surface of the liner, and a thermosetting resin that has been cured and covers surfaces of the fibers. The protective layer includes a porous member disposed on the fibers, the porous member having a plurality of pores extending through the porous member in a thickness direction of the porous member. The thermosetting resin has entered the pores.

A hydrogen gas compression system comprises a hydrogen storage chamber placed at a predetermined water depth in water to communicate with surrounding water; a hydrogen container filled with hydrogen gas by a lower pressure than a hydraulic pressure at the predetermined water depth; a transporting portion configured to guide the hydrogen container that is filled with the hydrogen gas, from above the predetermined water depth to the hydrogen storage chamber; a gas release portion configured to cause the hydrogen gas to be released from the hydrogen container transported to the hydrogen storage chamber and to be stored in the hydrogen storage chamber; a hydrogen recovery device placed above the predetermined depth; and a tube arranged to connect inside of the hydrogen storage chamber with the hydrogen recovery device.

The present disclosure generally relates to a venting system that includes a wall of a lid or a container. The lid or container defines a central longitudinal axis, and a line segment that is measured from the longitudinal axis to an outermost surface of the lid or container, and a pressure relief feature that is disposed along the lid or container. The pressure relief feature includes a thinned region of the lid or container that defines a minimum thickness that is less than 40% of a maximum thickness of the respective lid or container.

A cap for protecting a valve of a cylinder of pressurized fluid is provided. The cap includes a rigid structure defining a protective space for the valve. The structure includes a lower end that attaches to the cylinder.

The invention relates to a method for producing a pressure accumulator (1), in particular for storing hydrogen in motor vehicles. First, a pressure accumulator liner (3) which has at least one pole cap (2, 2) is produced preferably by means of a plastic blow molding method, and the outside of the liner (3) is then provided, preferably braided, with a multi-ply reinforcing layer (9), which has reinforcing fibers (8). According to the invention, a fiber supply cap (10, 10) is applied on the pole cap (2, 2) prior to applying the reinforcing fibers (8), the outer surface of the fiber supply cap being spaced from the pole region (21, 21) of the pole cap (2, 2). The reinforcing fibers (8) are applied onto the body of the liner (3) and in the pole region (21, 21) so as to correspond to the outer surface of the fiber supply cap (10, 10) while the reinforcing layer (9) is applied such that the inner reinforcing layer (9) plies which are formed by the reinforcing fibers (8) are provided with a fiber supply (22) in the pole region (21, 21) on the basis of the distance between the outer surface of the fiber supply cap (10, 10) and the pole region (21, 21) of the pole cap (2, 2). The invention also relates to a pressure accumulator (1) produced in a corresponding manner.

The invention relates to a method for producing a pressure accumulator (1), in particular for storing hydrogen in motor vehicles. First, a pressure accumulator liner (3) which has at least one pole cap (2, 2) is produced preferably by means of a plastic blow molding method, and the outside of the liner (3) is then provided, preferably braided, with a multi-ply reinforcing layer (9), which has reinforcing fibers (8). According to the invention, a fiber supply cap (10, 10) is applied on the pole cap (2, 2) prior to applying the reinforcing fibers (8), the outer surface of the fiber supply cap being spaced from the pole region (21, 21) of the pole cap (2, 2). The reinforcing fibers (8) are applied onto the body of the liner (3) and in the pole region (21, 21) so as to correspond to the outer surface of the fiber supply cap (10, 10) while the reinforcing layer (9) is applied such that the inner reinforcing layer (9) plies which are formed by the reinforcing fibers (8) are provided with a fiber supply (22) in the pole region (21, 21) on the basis of the distance between the outer surface of the fiber supply cap (10, 10) and the pole region (21, 21) of the pole cap (2, 2). The invention also relates to a pressure accumulator (1) produced in a corresponding manner.