HIGH PRESSURE GAS TANK AND MANUFACTURING METHOD OF HIGH PRESSURE GAS TANK

摘要

This high pressure gas tank (1) is a tank in which a fiber-reinforced resin layer (3) is formed around an outer periphery of a tank liner (2) by fibers impregnated with thermosetting resin being wound around the outer periphery of the tank liner (2). The fiber-reinforced resin layer (3) includes an inside layer (3a) formed on the tank liner (2) side, and an outside layer (3b) formed on an outer periphery of the inside layer (3a). The inside layer (3a) is formed as a dense layer, while the outside layer (3b) is formed as a layer that is less dense than the inside layer (3a) by forming a larger number of airspaces in the outside layer (3b) than there are in the inside layer (3a).