Patent ID: 7621135
Filing Date: 2009-11-24
Classification: B60N

Abstract:
1. An apparatus for delivering thermally conditioned air to a seat back of a vehicle seat, comprising: a thermal thermoelectric unit conditioning air supplied to an upper back seat zone defined by an upper portion of said seat back and a lower back seat zone defined by a lower portion of said seat back, wherein said thermoelectric unit includes a first outlet duct in hydraulic communication with said upper portion of said seat back and a second outlet duct in hydraulic communication with said lower portion of said seat back; and an air valve apparatus for apportioning conditioned air from said thermoelectric unit among said first outlet duct and said second outlet duct, wherein said air valve apparatus includes a first air control door between said first and second outlet ducts for apportioning conditioned air among said upper back seat zone and said lower back seat zone, a second air control door for selectively exhausting air from a passage coupling said thermoelectric unit to said upper back seat zone, and a third air control door for selectively exhausting air from a passage coupling said thermoelectric unit to said lower back seat zone.