Toyota Jidosha Kabushiki Kaisha

Jtekt Corporation

Kabushiki Kaisha Toyota Chuo Kenkyusho

Toyo Kogyo Co., Ltd.

Chihiro Uchimura

Akira Yamashita

Masayoshi Takami

Yukihide Yokoyama

Hiroaki Suzuki

Yutaka Hotta

Nobuo Kobayashi

Kazushi Numazaki

Koji Sugiura

Takayoshi Hamano

Hirokazu Otsubo

Tsukuo Ishitoya

Shusuke Inagi

Shinichi Nomura

Nobuyuki Ogami

Kazuhiko Umemoto

Noritaka Watanabe

Kazuki Fujii

Yoshinori Imoto

Takehisa Tsubokawa

Tomoyuki Kinjo

Natsuru Miyazaki

Kumi Amano

Hiroaki Yoneyama

Akira Noumura

A tank includes a liner, a neck that has a communicating orifice, a metal cylindrical member that is inserted into a lower end portion of the communicating orifice, and a valve that is inserted into the communicating orifice, wherein a lower end portion of the valve is inserted into the metal cylindrical member. The liner includes a wrap-around portion that wraps around to inside of the communicating orifice, and to contact with an outer circumferential face of the metal cylindrical member. A first O-ring is disposed in a circumferential direction between an inner circumferential face of the wrap-around portion and the outer circumferential face of the metal cylindrical member. A second O-ring is disposed in the circumferential direction between an inner circumferential face of the metal cylindrical member and an outer circumferential face of the lower end portion of the valve.

Tank

A high-pressure tank comprising: a resin liner for a high-pressure tank including at least one opening portion; an aluminum mouth portion attached to the opening portion; and a reinforcement layer formed on an outer surface of the liner, wherein an aluminum oxide coating is formed on a surface of the aluminum mouth portion, the aluminum oxide coating includes a porous surface layer in which columns with an average height of 10 to 100 nm are arranged in a dispersed state, an average value of a percentages of the protruding portion area of the columns in randomly sampled 400 nm square visual fields of the porous surface layer is 5.0 to 26.0%, and an average value of the numbers of the columns in randomly sampled 400 nm square visual fields of the porous surface layer is 500 to 2000.

High-pressure tank

A fuel cell system includes a supply channel having first channels respectively connected with tanks, and a second channel merged with each of the first channels; first on-off valves of the first channels; a second on-off valve of the second channel; and a controller configured to control opening and closing of the first on-off valves and the second on-off valve. In a state where the second on-off valve is closed, the controller supplies first electric power used for opening the first on-off valve against a first differential pressure to at least one first on-off valve, and supplies second electric power, smaller than the first electric power and used for opening the first on-off valves against a second differential pressure smaller than the first differential pressure, to the first on-off valves other than the at least one first on-off valve.

Fuel cell system and control method of the same

A safety valve includes a cylinder having an open end and a plug for closing the open end with a hermetic seal. The interior of the cylinder communicates with a high-pressure gas passage. The cylinder is deformed as a function of gas pressure in the high-pressure gas passage to widen the open end. This allows gas in the high-pressure gas passage to escape and thus prevents the gas pressure from increasing beyond an acceptable level.

Safety valve and electromagnetic valve

A gas charging apparatus includes a gas supply source; a fuel gas charging line L connected to the gas supply source, to charge a fuel gas into gas tanks, respectively; a temperature information acquiring section which acquires temperature information in the gas tanks; a pressure information acquiring section which acquires pressure information in the gas tanks; a relation data acquiring section which acquires correspondence relation data indicating a correspondence relation between a temperature and a pressure in the corresponding gas tank; a temperature difference calculating section which calculates a temperature difference between the gas tank having the highest internal temperature and the gas tank having the lowest internal temperature among the plurality of gas tanks; and a control section which performs control so as to stop the charging of the fuel gas.

Gas charging apparatus and gas charging method

This invention provides a fuel system and a vehicle that can improve the ease of leak checking. The fuel system includes: a plurality of fuel storages; filling piping that connects the fuel storages to a filling port in parallel; and supply piping that connects the fuel storages to a fuel supply destination in parallel. An integral manifold is formed by integrating a filling manifold part disposed at a branching point of pipes of the filling piping and a supply manifold part disposed at a branching point of pipes of the supply piping with each other. The integral manifold has a leak checking port configured to allow introduction of a fluid for leak checking into the filling piping and the supply piping.

Fuel system and vehicle

Disclosed is a seal structure of a high-pressure tank capable of properly securing seal efficiency. The seal structure of the high-pressure tank includes a plurality of seal members that have mutually different seal properties and that are installed between a ferrule of the high-pressure tank and a valve body attached to the ferrule. One of the plurality of seal members has low temperature resistance, and the other has high temperature resistance. A first seal member is an O-ring formed of butyl rubber or silicone. A second seal member is an O-ring formed of EPDM. Furthermore, the two O-rings are different in gas permeability from each other. This seal structure can be applied between the ferrule and the valve body, in addition, between the ferrule and a liner, between the ferrule and a shell, and between the valve body and the shell.

Seal structure of high-pressure tank

Growing community of inventors

Toyota, Japan

Chihiro Uchimura