Panasonic Intellectual Property Management Co., Ltd.

Kazuhiro Muromachi

Masayuki Takada

Seiji Shirahama

Munetada Satou

An air blowing device includes a housing with a suction port and a blow-off port, and a fan placed in the housing. The fan includes a fan case with a tongue section, an impeller, and a motor. The fan case includes an inlet and an outlet, and is shaped such that a space between the impeller and an inner wall of the fan case increases along a rotary direction of the impeller up to a cross section cut along a line between the tongue section and its opposite section. An opening area of the fan case at the tongue section is kept equal or decreases up to the outlet.

Growing community of inventors

Aichi, Japan

Kazuhiro Muromachi