Sanyo Electric Co., Ltd.

Takashi Kawanabe

Masahiro Kobayashi

Akira Hamada

Takaaki Matsubayashi

Yasunori Yoshimoto

Mitsuo Karakane

Yoshitaka Hara

Masayuki Motegi

Hideaki Mukaida

Atuyumi Ishikawa

Masanori Akutsu

Yoshinori Tohya

Masanori Gotoh

Atsuyumi Ishikawa

An objective of this invention is to provide a separator for a fuel cell whereby a fuel, air or cooling water can be evenly and efficiently fed. In a separator for a fuel cell comprising fuel channelsin one side and cooling water channelsin the other side, the regions where the fuel channelsand the cooling water channelsare formed rectangular. The fuel gas is fed from a first fuel-feeding manifoldand discharged from a first fuel-discharging manifoldto the outside of the cell. The cooling water is fed from a first cooling-water-feeding manifoldand discharged from a first cooling-water-discharging manifoldto the outside of the cell.

Separator for fuel cell and fuel cell therewith

A heat exchanger used for a refrigerating cycle has a plurality of grooves formed in the inner surface of a pipe thereof in the flowing direction of a refrigerant. At least two types of grooves which differ in width are used. The pipe also has fins which are coated with a hydrophilic paint that is black in color. This design enables the heat exchanger to provide improved performance.

Heat exchanger for refrigerating cycle

In a heat exchanger comprising a number of multilayered fins, and a refrigerant pipe arranged in the meandering form in the fins, and an air conditioner having the heat exchanger, each of the fins has a corrugated portion formed in an air-flow direction thereon, which has at least two wavelike portions for producing a turbulent flow of air having such strength that a temperature boundary layer of the air is broken, but resistance against to the air flow is not excessively high. Each wavelike portion may be designed to have a triangular section or a trapezoidal section, and a flat portion may be disposed between the wavelike portions.

Heat exchanger having corrugated fins and air conditioner having the same

Growing community of inventors

Gunma, Japan

Takashi Kawanabe