Composite conformable pressure vessel

(57) The pressure vessel (10) holding pressurization fluid like summary compressed natural gas ("CNG") does not need to be equipped with two end cells (12) and one or more internal cells, or does not need to be equipped with the internal cell at all. The cell which crosses mutually in respect of in which a cell (12) carries out a tangent circular, and adjoins by this according to the geometric form of this cell lessens the tendency pulled and torn to pieces. The web (14) which adhered to the surroundings of these cells is equipped with two sheets which carry out a tangent to a cell (12). The unused capacity between these cells (12) and webs has accommodated the wedge completed with foaming material or rubber. A valve (22) carries out fluid 連通 of the inside of a pressure vessel, and the pipe of pressurization fluid. The filling weight of one pressure vessel does not exceed the filling weight of the conventional gasoline tank which occupies the area same in a pressure vessel and abbreviation. This pressure vessel can be made into a form equipped with external 凹所 to which engaging of clutch of the strap of the conventional gasoline tank is carried out.