JPS5527532A - Adjustor for drain intake - Google Patents

Abstract

PURPOSE: To prevent the infiltration of air and dust into coolant by specifying the construction of drain-pan.

CONSTITUTION: At the top of the drain-pan 18, which is installed at the bottom inside of the air conditioner body 10 for the purpose of storing drain 20, filter 36 is extended to cover the pan. Shape of the pan 18 is so designed as its depth increases toward its center, having drain tube 26 connected at its center bottom (via short tube 22 provided with float-valve 30) having valve sheet pipe 24 of tapered shape. In this construction, a load is generated at the throttle 28 of the cooling coil tube 12 because of the increase of the flow speed of coolant, and is transmitted to the drain tube 26, at the same time, valve float 30 floats up by the increase of drain 20, making it sucked into the tube 26 by the generated load and the amount of coolant inside of the cooling coil tube 12 is adjusted. In addition, at the time when the drain 20 decreases, lowering of the valve float 30 intercepts the infiltration of air into the drain tube 26 leaving a small amount of drain 20 at the bottom of the drain-pan 18 by closing the bottom valve consisting of the valve body 34 and the valve sheet 24. Accordingly, infiltration of dust and air into the coolant is prevented by covering the pan with filter 36 and the function of the float valve at the bottom of the drain- pan.

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