Matsushita Electric Industrial Co., Ltd.

Takashi Sugio

Kiyoshi Sano

Shotaro Ito

Katsuhiko Fujiwara

Makoto Obata

Hirokazu Sakai

Yoshiki Izumi

An outdoor unit of a separate type air conditioner has suction ports and a blow-out port which can be disposed freely on the same side of the unit. Also, an outdoor unit of a one-side suction and exhaust type is excellent in static pressure characteristic, sufficient in air flow rate using only one blower, and is easy to install. Suction ports (8) are disposed at both sides in the front side of an outdoor unit main body (outer case 7), and a blow-out port (6a) is disposed in the center of the front side. A heat exchanger (3), an orifice (5), and one centripetal fan (1) are sequentially disposed behind the blow-out port (6a), thereby forming a draft circuit for sucking air from the suction ports (8) at the outer circumference of blades (1a) of the centripetal fan (1). The air is blown out ahead of the blades (1a) through the orifice (5) and heat exchanger (3). Therefore, since suction space is not required, the outdoor unit can be installed close to a wall. In addition, by the use of the centripetal fan (1), a sufficient air flow rate is obtained with only one blower, and the size of the outdoor unit for producing a same capacity may be kept to a minimum.

Outdoor unit of a separate type air conditioner

An integrated air conditioner is provided which realizes an improvement in the indoor- and outdoor-side ventilating circuits, an enhancement in air quantity performance, a reduction in noise, an enhancement in heat exchanging ability, compacting, and simplification in an installing operation. The integrated air conditioner has an indoor-side ventilating circuit (4) which is constituted by an indoor-side heat exchanger (5), two indoor-side air blowers (6) with centrifugal fans, an indoor-side suction port (2), and an indoor-side blowoff port (3); an outdoor-side ventilating circuit (9) which is constituted by an outdoor-side heat exchanger (10), an outdoor-side air blower (6) with an axial-flow fan, an outdoor-side suction port (7), and an outdoor-side blowoff port (8); ducts for leading the indoor-side suction port (2) and the indoor-side blowoff port (3) to an indoor side; and a compressor (12). The indoor-side ventilating circuit (4), the outdoor-side ventilating circuit (9), and the compressor (12) are provided outdoors.

Integrated air conditioner

An impeller for a cross-flow fan, including a plurality of impeller sections. Each impeller sections includes a pair of plate members and a number of blades extending between and circumferentially of the plate members such that the blades are circumferentially spaced at random pitch angles without periodicity.

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Kusatsu, Japan

Takashi Sugio