Toyota Boshoku Kabushiki Kaisha

Toyota Jidosha Kabushiki Kaisha

Snt. Co., Ltd.

Yasunari Arai

Nobuhiko Nakagaki

Akishi Morita

Hiroyuki Sekine

Takeshi Nomura

Junko Ohira

Minoru Honda

Kazuhiro Fukumoto

Kenichirou Suzuki

Masaaki Takemoto

Atsushi Imamura

Minoru Takahara

Koji Kume

Hiroshi Koide

Takeshi Asai

An end plate is joined to a fuel cell stack. A first piping unit and a second piping unit are attached to the end plate. The first piping unit has a first attachment base, to which a fuel gas supply pipe, a first oxidation off-gas discharge pipe, and a coolant discharge pipe are coupled. The second piping unit has a second attachment base, to which an oxidation gas supply pipe, a coolant supply pipe, and a discharge pipe are coupled. The discharge pipe is joined to a discharge cylinder coupled to the first oxidation off-gas discharge pipe. The oxidation gas supply pipe and the coolant supply pipe are integrated with each other. Also, the first oxidation off-gas discharge pipe and the coolant discharge pipe are integrated with each other.

Fuel cell system including oxidation gas supply pipe integrated with coolant supply pipe

A first rectangular pipe is connected along a path of an oxidation gas supply pipe that supplies an oxidation gas from a pump to an oxidant pole of a fuel cell. A second rectangular pipe is connected to an oxidation off-gas pipe connected to an outlet of the oxidant pole. A lower surface of the first rectangular pipe is contacted with an upper surface of the second rectangular pipe. A connecting path is provided to the contact surface, and a vapor permeable membrane is disposed at the connecting path. An upper surface of a third rectangular pipe is provided in surface contact with a lower surface of the second rectangular pipe, the third rectangular pipe being provided to a coolant out-pipe connected to a cooling jacket of the fuel cell. Generated water in the second pipe is heated and evaporated by a coolant heated in the third rectangular pipe. The water vapor then permeates the vapor permeable membrane, and is directed inside the first rectangular pipe so as to humidify the oxidation gas.

Fuel cell system with heater

A discharge port is located at a lower portion of the case of a gas-liquid separator. A discharge valve is located at the discharge port. A water retaining portion is located at the bottom of the case. The water retaining portion is located at a position lower than the discharge valve. An upward inclination surface is formed on the bottom of the water retaining portion. The upward inclination surface is inclined upward toward the discharge valve. A downward inclination surface is formed on the bottom of the water retaining portion. The downward inclination surface is inclined downward toward the upward inclination surface. A cover portion is located in an upper portion of the water retaining portion. The cover portion defines a gas passage in an upper portion of the water retaining portion. The gas passage is open at a portion closer to the inlet and connected to the discharge valve.

Gas-liquid separator for fuel cell system

Provided is a filter for removing a sulfur-containing-gas (), which removes the sulfur-containing-gas by being brought into contact with the sulfur-containing-gas in a gas flow path, the filter including a former filter () disposed on an upstream side of the gas flow path, and a latter filter () disposed on a downstream side of the gas flow path, wherein the former filter () includes a first material for removing a sulfur-containing-gas, the first material including a porous support, and iodine which is supported on the porous support, and is produced by catalytic pyrolysis of ammonium iodide at a thermal decomposition ratio of 80% or more by use of the porous support as a catalyst, and the latter filter () includes a second material for removing a sulfur-containing-gas, the second material including an activated carbon fiber, and an alkali component which is supported on the activated carbon fiber.

Filter for removing a sulfur-containing-gas and method for removing a sulfur-containing-gas using the same

An ion-removing apparatus includes a housing, a first ion-removing unit and a second ion-removing unit. The housing includes an inlet port, a liquid discharge port and a gas discharge port. The first ion-removing unit is disposed within the housing, so that the fluid that has entered the housing via the inlet port flows through the first ion-removing unit. The first ion-removing unit serves to remove a first ion, such anions, contained in the fluid. The second ion-removing unit is disposed within the housing, so that the fluid that has flown though the first ion-removing unit flows through the first ion-removing unit. The second ion-removing unit serves to remove a second ion, such as cations contained in the fluid. The liquid contained in the fluid that has flown through the second ion-removing unit is discharged from the liquid discharge port. The gas contained in the fluid that has flown through the second ion-removing unit is discharged from the gas discharge port.

Ion-removing apparatus

A gas-removing device serves to remove impurity gases from the air supplied to a fuel cell via an air supply system. The gas-removing device includes a porous material and an alternate adsorption membrane. The porous material has micropores formed therein in order to absorb impurity gas particles contained in the air. The alternate adsorption membrane is formed on the inner walls of the micropores of the porous material in order to further adsorb and retain at least one type of impurity gas particles from among the impurity gas particles absorbed by the porous material. The alternate adsorption membrane includes at least one positively charged layer and at least one negatively charged layer laid alternately to one another.

Gas-removing devices and air supply systems having the gas-removing devices

Growing community of inventors

Takahama, Japan

Yasunari Arai