Toyota Jidosha Kabushiki Kaisha

Jtekt Corporation

Hidetsugu Hayashi

Akira Yamashita

Masaaki Kondo

Toshihiko Shima

Hidetoshi Fujiwara

Eiji Okawachi

Toshikatsu Kubo

Shusuke Inagi

Munetoshi Kuroyanagi

Takashi Iwaguchi

A valve element of a pressure reducing valve includes a taper portion seated on an inner periphery of a valve hole that includes a first area, a second area and a third area in order from an upstream side. The first area is provided such that, when the valve element is open, the height of a passage defined between the first area and the taper portion gradually reduces toward a downstream side. The second area is provided such that the height of a passage defined between the second area and the taper portion is constant when the valve element is open and the entire second area contacts the taper portion when the valve element is closed. The third area is provided such that, when the valve element is open, the height of a passage defined between the third area and the taper portion gradually increases toward the downstream side.

Pressure reducing valve

A tank holding mechanism holds a gas tank that has a cylindrical portion and hemispherical-shaped domical portions formed on respective sides of the cylindrical portion. The tank holding mechanism includes: a tank accommodating portion that contacts a peripheral wall of the cylindrical portion of the gas tank; tank end-side members provided near respective ends of the gas tank; a tank band that pushes the gas tank against the tank accommodating portion; and band securing portions that secure end portions of the tank band to the respective tank end-side members. The tank band is routed from one of the domical portions through the cylindrical portion to the other domical portion. The tank band extends along a diagonal line of the gas tank over an outer face of the cylindrical portion, conforms to the outer face of the cylindrical portion, and conforms to hemispherical outer faces of both of the domical portions.

Tank holding mechanism for gas tank and vehicle in which gas tank is mounted using the same

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Toyota, Japan

Hidetsugu Hayashi