Patent application number | Description | Published |
20130126127 | HEAT EXCHANGER AND REFRIGERATION AND AIR-CONDITIONING APPARATUS - A heat exchanger includes a first flat pipe including plural through-holes through which a high-temperature fluid flows, a second flat pipe including plural through-holes through which a low-temperature fluid flows, a first tubular shape inlet header connected to one end of the first flat pipe, a first tubular shape outlet header connected to another end of the first flat pipe, a second tubular shape inlet header connected to one end of the second flat pipe, and a second tubular shape outlet header connected to another end of the second flat pipe. The first and second flat pipes are stacked with contacting flat surfaces. The low-temperature fluid flowing into the through-holes in the second flat pipe from the second inlet header is a fluid in a two-phase gas-liquid state, and flows into those through-holes in a substantially horizontal direction or in an upward direction relative to the substantially horizontal direction. | 05-23-2013 |
20140007607 | AIR-CONDITIONING APPARATUS - An air-conditioning apparatus in which a primary-side refrigerant in a two-phase gas-liquid state that has flowed into each of intermediate heat exchangers absorbs heat from a secondary-side refrigerant flowing in counterflow to the primary-side refrigerant, and evaporates and turns into a low-temperature, low-pressure gas state. The air-conditioning apparatus ensures high heat exchange efficiency even when a direction of a heat source-side refrigerant (secondary-side refrigerant) flowing through an intermediate heat exchanger changes, and enables an appropriate operation in any operation mode. | 01-09-2014 |
20140076526 | HEAT EXCHANGER AND REFRIGERATION CYCLE APPARATUS INCLUDING SAME - A heat exchanger in which inner wall surfaces of refrigerant passages through which a first refrigerant and a second refrigerant flow are constituted by a different metal and in which a heat exchange performance is improved. Second-refrigerant heat-transfer tubes that are formed with a metal different from a heat transfer block are each inserted through a corresponding second-refrigerant heat-transfer-tube insertion hole. The second-refrigerant heat-transfer tubes are formed with a metal with a different material from that of the heat transfer block. | 03-20-2014 |
20140144611 | HEAT EXCHANGER AND REFRIGERATION CYCLE APPARATUS EQUIPPED WITH THE SAME - A compact, readily-manufacturable heat exchanger and a refrigeration cycle apparatus equipped with the same are provided. One of opposite ends of a main body in a refrigerant flowing direction is provided with a first inlet communication hole that extends in a direction of arrangement of first refrigerant channels and that communicates with all of the first refrigerant channels. The other end is provided with a first outlet communication hole that extends in the direction of arrangement of the first refrigerant channels and that communicates with all of the first refrigerant channels. | 05-29-2014 |
20150013376 | OUTDOOR UNIT FOR AIR-CONDITIONING APPARATUS - An outdoor unit for an air-conditioning apparatus includes a heat exchanger, at least one fan, a compressor, and a box-shaped casing that houses the foregoing elements and has an air inlet and an air outlet. The compressor is provided at a position outside an air passage in which air taken in from the air inlet flows through the heat exchanger and the fan toward the air outlet. The heat exchanger includes a plurality of heat exchanger segments. The heat exchanger segments are arranged zigzag. | 01-15-2015 |
20150135756 | MULTI-ROOM AIR-CONDITIONING APPARATUS - A multi-room air-conditioning apparatus includes an outdoor unit, a relay unit connected to an outdoor unit by first and second connection pipes, and a plurality of indoor units connected to the relay unit. The outdoor unit includes a second gas-liquid separating device provided on the suction side of the compressor. The suction side of the compressor and the second gas-liquid separating device are connected to each other by a gas-side outlet pipe and a liquid-side outlet pipe. | 05-21-2015 |