Denso Corporation

Aisin Seiki Kabushiki Kaisha

Toyo Tanso Co., Ltd.

Ntn Corporation

Takashi Ito

Kazuhiro Takeuchi

Masaru Kamiya

Masashi Matsukawa

Takeshi Miyamoto

Isao Kondoh

Toshikatsu Kondou

Youhei Kamiya

Chikara Ohki

Kazuhiro Yagita

Yoshiaki Hirose

Toshihisa Terazawa

Hiroshi Morishita

Takao Matsui

Chikage Akai

A blower fan includes a plurality of blades radially extending from a boss provided at a rotary center and spaced apart from each other in the rotational direction, and a ring portion connecting outer peripheral ends of the blades in a ring shape. A radially outer end part at an end on an air-flow upstream side of the ring portion is positioned outward in a radial direction of a rotary shaft in the blower fan, as toward the air-flow upstream side. Thus, the blower can prevent the backflow air from being swirled, thereby reducing noise.

Blower

A blower fan includes a plurality of blades radially extending from a boss provided at the rotary center and spaced apart from each other in the rotational direction, and a ring portion connecting outer peripheral ends of the blades in a ring shape. An inner peripheral wall surface of an end part on an air-flow downstream side of a cylindrical portion is disposed on the outside in a radial direction of the rotary shaft in the blower fan, with respect to an end part on the air-flow downstream side of the ring portion. The end part on the air-flow downstream side of the cylindrical portion is positioned outward in the radial direction of the rotary shaft, as toward the air-flow downstream side. Thus, the blower can prevent the backflow air from being swirled, thereby reducing noise.

A method of manufacturing a fuel cell separator, includes the steps of: preparing a first sheet, which is formed with a main material containing, therein, expanded graphite material and binder, and a second sheet configured to face at least one of surfaces which are formed at an outer edge portion of the first sheet and; arranging the second sheet to contact with the at least one of surfaces which are formed at the outer edge portion of the first sheet; and forming a passage on the first sheet at the same time as pressure-bonding the first sheet and the second sheet by a pressurizing means.

Fuel cell separator and method of manufacturing the same

Growing community of inventors

Kariya, Japan

Takashi Ito