Patent ID: 7637031

Claim:
An evaporator core drying system, comprising: a heating, ventilation and air conditioning module comprising: an evaporator core; and a blower providing a stream of blown air; a configurable barrier located between said evaporator core and said blower, wherein said configurable barrier is disposed substantially adjacent said evaporator core such that the stream of blown air blows from said blower through an opening in said configurable barrier and then, after blowing through said opening of said configurable barrier, blows through said evaporator core, said configurable barrier being configurable between a fully open configuration wherein said opening of said configurable barrier has an opening area which is substantially equal to a core area of said evaporator core such that exposure of said evaporator core to the stream of blown air is substantially unlimited by said opening, and a slotted configuration wherein said opening is a slot having a slot area much smaller than said core area which locally limits the area of exposure of said evaporator core to the stream of blown air, wherein the slot area in combination with the stream of blown air provide a high speed purge air through said slot; and an electronic circuit connected with said configurable barrier, said electronic circuit implementing a predetermined blow algorithm, said electronic circuit configuring said configurable barrier between said fully open configuration and said slotted configuration responsive to the blow algorithm, said electronic circuit moving said configurable barrier so that said slot progressively moves across substantially the entire core area responsive to the blow algorithm; wherein the high speed purge air and the progressive movement of said slot provide drying of said evaporator core responsive to the blow algorithm.