F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
F24F 13/22 (2006.01)
Patent
CA 2440386
One of the most bothering problems with air conditioners is the water drainage problem. When the air conditioner is used for cooling the room, considerable amounts of water can condense on the room unit and are typically moved out through a small tube out of a hole in the wall and dropped there near the external wall. Another typical problem with ordinary single- room split air conditioners is that there is no arrangement for entering fresh air into the room other than keeping the window open or partly open, which can result in considerable loss of efficiency of the air conditioner. Although a wide fresh air tunnel is sometimes used in central air conditioners that are spread over a number of rooms, such a solution does not exist for a single- room split air conditioner. The present invention solves the drainage problem by adding preferably one more pipe to the group of preferably thin pipes that go to the external condenser unit (which is typically either on an outside wall or on the roof), preferably with a pump, so that the water can go also in horizontal or upward directions. This pipe preferably reaches the external condenser, where the water is preferably poured on the radiator there, thus also cooling it down and increasing the efficiency of the air conditioner, and preferably the water evaporates there. Various solutions are shown for the fresh air problem, including for example a heat exchange between incoming air and outgoing air, and transferring also the outgoing air to the external condenser unit. Another improvement shown is increasing the efficiency of the home-unit radiator (and/or of the external unit radiator) by increasing the surface area of its contact with the air.
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