Kabushiki Kaisha Toshiba

Toshiba Carrier Corporation

Masahiko Sasaki

Hiroyuki Sugiyama

Yasunori Ichikawa

Kenji Gajina

Katsuaki Yamagishi

Yukio Kiguchi

Hidetoshi Fukunaga

Yasutoshi Tsuchiya

Teturo Ozawa

Seiji Ookoshi

Kunio Sakai

Akira Konagai

Daisuke Saito

Hiroshi Sunahara

Yukio Yokomizo

A heat source unit includes a compressor, a heat-source-side heat exchanger, an outdoor blower, and a controller for electric devices. A hydrothermal exchange unit accommodates water heat exchangers, water pipes, pumps and a controller, and is connected to the heat source unit via refrigerating pipes and electric wiring. A tank unit has tanks for storing hot water obtained as a result of heat exchange by the water heat exchangers. The hydrothermal exchange unit has a housing. The front, rear, upper, left and right sides of the housing are covered with panels. A bottom plate for the housing is disposed a predetermined distance above the lower end of the housing. The housing accommodates the hydrothermal exchange unit, and a space below the bottom plate of the housing accommodates connectors for the water pipes and refrigerant pipes. This completely prevents freezing of the water pipes, makes use-side units compact, and improves operation efficiency.

Heat-pump-type water heater

An indoor unit of an air-conditioner having a unit body, provided on a rear of a ceiling, having an lower surface portion exposed indoor and an indoor heat exchanger and a blower in its exterior, a decorative panel, structured as the lower surface portion for the unit body, having an inlet port for guiding air in a room to the indoor heat exchanger, a filter fixing portion, structured as a part of the decorative panel, having a filter attached to a position opposite to the inlet port to be detachable, a support portion for supporting the filter fixing portion to be freely rotatable to the decorative panel, and an open/close driving mechanism for driving the filter fixing portion to be freely opened and closed against the decorative panel in a state that the support portion is used as a fulcrum, the mechanism for hanging the filter fixing portion from a ceiling surface when being opened to be moved.

Indoor unit of air-conditioner

An air conditioning apparatus comprising an indoor unit. The unit has a first indoor heat exchanger for cooling or heating indoor air and a second indoor heat exchanger for cooling or heating indoor air. A first indoor fan is located near the first indoor heat exchanger, for drawing the indoor air and supplying it through the first indoor heat exchanger to the zone of a room. A second indoor fan is located near the second indoor heat exchanger, for drawing the indoor air and supplying it through the second indoor heat exchanger to the zone of a room. The apparatus further comprises two temperature sensors for detecting the temperatures of the indoor heat exchangers, respectively. The higher or lower of the temperatures detected by the sensors is selected, in accordance with the cooling or heating mode in which the apparatus is operating. In accordance with the temperature selected, the air-supplying rates of the indoor fans are controlled.

Air conditioning apparatus capable of operating in cooling mode and

A rotary compressor comprises a rotary shaft for compression action, a bearing which supports the rotary shaft and includes a discharge valve to discharge compressed gas and a sound suppression cover which covers the discharge valve, so that an annular discharge chamber is formed between the sound suppression cover and the bearing. At least one tubular cavity section with a bottom is provided to open into the discharge chamber at a location adjacent the discharge valve. The tubular cavity section has a length approximately one-fourth of the average circumference length of the discharge chamber.

Rotary compressor with sound suppression tubular cavity section

Growing community of inventors

Fuji, Japan

Masahiko Sasaki