Sanyo Electric Co., Ltd.

Other

Kiyoshi Koyama

Shigeya Ishigaki

Haruhisa Yamasaki

Satoshi Imai

Hiroshi Mukaiyama

Tomohito Koizumi

Michihiro Kurokawa

Osamu Kuwabara

Hirokazu Izaki

Kazuaki Shikichi

Masao Koseki

Yoshinori Toya

Tomohito Takada

Noriyuki Nabeshima

Yoshiyuki Kitamura

Michio Kurakami

Yasutomo Akutu

Kensuke Matsumoto

Masanobu Saitoh

Yoshinori Touya

Sadahiro Takizawa

A heat pump type hot water supply apparatus ( ) for heating water by refrigerant heat and stocking the hot water thus achieved including: a heat pump unit ( ) having a refrigerant circuit using natural refrigerant, the refrigerant circuit including a compressor ( ) for compressing refrigerant, a heat-pump heat exchanger ( ) and a refrigerant-water heat exchanger ( ) for performing the heat exchange between refrigerant and water to achieve hot water; a hot water supply unit ( ) including a hot water supply tank ( ) for stocking the hot water achieved by the refrigerant-water heat exchanger ( ) of the heat pump unit ( ) and supplying the hot water thus stocked; and a water pipe ( ) through which the refrigerant-water heat exchanger ( ) of the heat pump unit ( ) and the hot water supply tank ( ) of the hot water supply unit ( ) are connected to each other to circulate hot-water/water between the refrigerant-water heat exchanger ( ) and said hot water supply tank ( ).

Heat pump type hot water supply apparatus

A number of vanes 12 are disposed in a peripheral direction of a plurality of supporting disks disposed along a rotary shaft 14 at given intervals. Each vane 12 is disposed at an angular interval as determined by a logistic representation. Thereby the intensity and variations of noise levels at around 8N on the low-frequency side, as well as the noise level caused by rotary first-order sounds, can be reduced.

Cross-flow fan and an air-conditioner using it

In an air conditioner having an air filter comprising a frame body and a mesh which are integrally formed, a specific portion 140 of the frame body 132 is wider than the other portions of the frame body, and a support post 130 which is engageable with a latch slot 131 on the main body is disposed at the widened portion, so that even when the joint between the frame body and the mesh is formed away from the support post, the mechanical strength of the post can be maintained. In addition, the width of the joint at the widened portion is substantially equal to that of the other portions of the joint, so that the mesh is uniformly fixed to the frame body.

Air conditioner having air filter

Growing community of inventors

Isesaki, Japan

Kiyoshi Koyama