Denso Corporation

Atsushi Hayasaka

Ryouichi Sanada

Yasuhiro Osada

Masahiro Shimoya

Naoki Sugimoto

Aun Ota

Mitsugu Nakamura

Takayuki Sugiura

Yuuki Mukoubara

Masahiro Omae

Takahiro Tamura

Takashi Taki

Yuki Mukobara

Yasutoshi Doi

Takashi Ojiro

A fuel cell module includes a container and a plurality of cell members radially arranged inside the container. Inside the container, a first fluid flow path through which a first fluid that exchanges heat with an inner portion of the plurality of cell members flows is formed, and a second fluid flow path through which a second fluid that exchanges heat with an outer portion of the plurality of cell members flows is formed. A first heat exchange portion that forms the first fluid flow path and exchanges heat with the cell member has a smaller heat transfer area with the cell member than a second heat exchange portion that forms the second fluid flow path and exchanges heat with the cell member. The first fluid having a larger temperature difference with the cell member than the second fluid flows in the first fluid flow path.

Fuel cell module

A fuel cell system includes a fuel cell, a fuel gas supply line, an oxidizing agent gas supply line, a fuel gas discharge line, and a reformer provided in the fuel gas supply line. A first circulating line circulates the fuel gas from the fuel gas discharge line to an upstream side of the reformer in the fuel gas supply line as a first circulating gas. The circulation device is provided in the fuel gas supply line, and suctions the first circulating gas by using the flow of the fuel gas flowing through the fuel gas supply line as a driving flow. A second circulating line circulates the fuel gas from a downstream side of the circulation device in the fuel gas supply line or the fuel gas discharge line to the upstream side of the circulation device in the fuel gas supply line as a second circulating gas.

Fuel cell system

A heat exchanger includes a plurality of flat tubes in which a fluid flows, and a plurality of fins each of which is connected to flat surfaces of adjacent tubes to increase a heat exchange area on a side of air flowing outside of the tube. The fin includes a plate portion having a plate surface, and fin protrusions protruding from the plate surface of the plate portion. The fin protrusions are provided to be spaced from the flat surface of the tube by a predetermined distance. A flow resistance portion is provided to protrude from the flat surface of the tube toward outside by a protrusion dimension that is equal to or larger than the predetermined distance.

Heat exchanger

A heat exchanger that can prevent damage to joints of tubes and side plates at core plates and is easy to produce which has side plates enabling stable brazing of the tubes and fins with the side plates, that is, a heat exchanger provided with a plurality of tubes through a heat exchange medium passes, a plurality of fins alternately stacked with the tubes and increasing the heat transfer of the heat exchange medium, core plates to which the two ends of the tubes are connected, and side plates arranged at the outsides in the stacking direction from the end fins arranged at the outermost sides in the stacking direction of the fins and connected to the core plates, wherein at least one of the side plates has a plurality of bridge portions at intermediate locations in the longitudinal direction, and at least one location of the bridge portions has a slit provided by cutting after the brazing of the tubes and the fins.

Heat exchanger with side plate having pipe near bridge portion

A radiatorfor electric parts use, which cools an inverter and others relating to the control of an electric motor, and a condenserfor condensing refrigerant are arranged in parallel with each other with respect to the direction of an air flow on an upstream side of the air flow of a radiatorfor engine use. Due to the above arrangement, as the air temperatures at the inlets of the radiatorfor electric parts use and the condenserare low, a temperature difference between air and cooling water and a temperature difference between air and refrigerant are increased, and it becomes possible to enhance the performance of the radiatorfor electric parts use and the condenser

Cooling system used for hybrid-powered automobile

Even in the case where an additional heat exchanger must be arranged at the downstream side in the air flow direction of a multiple heat exchanger, a high flow-rate of air can be supplied to the additional heat exchanger arranged at the downstream side. In a state in which a reinforcement plateof an outdoor heat exchangerand a reinforcement plateof a first radiatorcome next to and overlap each other in series in the cooling air flow direction, both the reinforcement platesandare joined with a bolt. Due to this, a distance h between a first heat exchange coreand a second heat exchange coreis reduced. Therefore, air for cooling can be supplied, at a high flow-rate, to a second radiatorarranged at the downstream side.

Growing community of inventors

Kariya, Japan

Atsushi Hayasaka