Abstract: Cross flow fan, and air conditioner fitted with the same, the cross flow fan including a plurality of annular rims arranged at regular intervals along a horizontal direction, and a plurality of blades on a side surface of the rim vertical thereto, and along a circumference direction of the rim, wherein pitch angles between two adjacent blades are not regular, the pitch angle taking a center of the rim as an apex, and a number of blades are 32 or 35. The pitch angles of the blades are designed by a computer optimization method taking a number of the blades and the like as parameters.

Abstract: Multi-type air conditioner including a plurality of distributors each including a gas-liquid separator for separating refrigerant from the outdoor unit into gas refrigerant and liquid refrigerant, and distributor pipelines for guiding the gas or liquid refrigerant separated at the gas-liquid separator to the indoor units, and guiding the refrigerant passed through the indoor unit to the outdoor unit again, and an equalizing pipeline part for connecting the distributors for equal supply of refrigerant, thereby installing the indoor unit easily, and improving an air conditioning efficiency by supplying the refrigerant, equally.

Abstract: Disclosed is a multi-air conditioner including: an outdoor unit having a compressor, an outdoor heat exchanger, and an outdoor fan for ventilating the outdoor heat exchanger; a plurality of indoor units each having an electronic expansion valve and an indoor heat exchanger; a distributor for selectively guiding a refrigerant of the outdoor unit into the plurality of indoor units according to an operation condition; a four-way valve for selectively switching a flow direction of the refrigerant flowing through the outdoor heat exchanger; a selective expansion unit for selectively expanding the refrigerant according to the flow direction of the refrigerant; a gas-liquid separator for separating a vapor-phase refrigerant and a liquid-phase refrigerant, from the refrigerant flowing from the outdoor heat exchanger; and a connection tube part having a first connection tube for connecting the four-way valve with a distributor, a second connection tube for connecting an upper portion of the gas-liquid separator with t

Abstract: Disclosed is a multi-air conditioner in which heating and cooling operations are performed at the same time, the number of connection pipes connecting outdoor unit and distributor is simplified to three to flow a specific pressure and phase refrigerant through each connection pipe regardless of operation condition.

Abstract: Disclosed is a multi-air conditioner comprising: an outdoor unit installed at an outdoor location and exchanging heat with an outdoor air, a plurality of indoor units installed at respective indoor rooms and provided therein with an indoor heat exchanger and an electronic expansion valve, and a distributor provided between the outdoor unit and the indoor units, for selectively guiding the refrigerant according to the operation mode. The outdoor unit is comprised of a compressor, a refrigerant flow control part for controlling a flow path of a compressed refrigerant according to an operation mode, an outdoor heat exchanger exchanging heat with the outdoor air, and a pipe part connecting the elements of the outdoor unit and guiding the refrigerant to the distributor. The distributor guides the refrigerant selectively to the outdoor unit and the indoor units according to the operation mode.

Abstract: Multi-type air conditioner including an outdoor unit installed outside of a room having a compressor and an outdoor unit mounted therein, a plurality of indoor units each installed in a room having an electronic expansion valve and an indoor heat exchanger, a distributor for separating refrigerant from the outdoor unit at a gas-liquid separator and guiding separated refrigerant to the plurality of indoor units selectively depending on operation conditions, a first connection pipe for guiding the refrigerant from the outdoor unit to the gas-liquid separator in the distributor, a second connection pipe for guiding the refrigerant from the distributor to the outdoor unit, and a switching part in the outdoor unit having a first four way valve provided to a discharge side of the compressor for selective switching of a flow direction of the refrigerant flowing in the outdoor heat exchanger, and a second four way valve provided to be switched in conformity with switching of the first four way valve for maintaining t

Abstract: Multi-type air conditioner including a plurality of distributors each including a gas-liquid separator for separating refrigerant from the outdoor unit into gas refrigerant and liquid refrigerant, and distributor pipelines for guiding the gas or liquid refrigerant separated at the gas-liquid separator to the indoor units, and guiding the refrigerant passed through the indoor unit to the outdoor unit again, and an equalizing pipeline part for connecting the distributors for equal supply of refrigerant, thereby installing the indoor unit easily, and improving an air conditioning efficiency by supplying the refrigerant, equally.

Abstract: Cross flow fan having a plurality of unit fans assembled in succession with the unit fans twisted from each other at sides, and an air conditioner fitted with the same. The unit fan includes an annular rim, and a plurality of impellers arranged on a side of the rim vertical to, and along a circumference of the rim. The present invention provides a cross flow fan extension lines from the impellers of the unit fan have a phase difference with the extension lines from the impellers of an adjacent unit fan.

Abstract: Cross flow fan, and air conditioner fitted with the same, the cross flow fan including a plurality of annular rims arranged at regular intervals along a horizontal direction, and a plurality of blades on a side surface of the rim vertical thereto, and along a circumference direction of the rim, wherein pitch angles between two adjacent blades are not regular, the pitch angle taking a center of the rim as an apex, and a number of blades are 32 or 35. The pitch angles of the blades are designed by a computer optimization method taking a number of the blades and the like as parameters.