Patent ID: 7727058
Filing Date: 2010-06-01
Classification: B60H,Y10T

Abstract:
1. A motor vehicle ventilation system, comprising at least an intake housing, a plenum chamber, one or more flow conduits and one or more control flaps for distributing the air to the flow conduits, and a flap ( 2 ) arranged to control the air supply to the interior of the vehicle together with a second flap ( 4 ), said flap ( 2 ) comprising a shaft ( 2 ″), on which said entire flap ( 2 ) is pivotable, a flap surface ( 2 ′) and a sealing portion ( 13 ), characterized in that at least a first portion of the flap surface ( 2 ′) is pivotable relative to the shaft ( 2 ″) and/or another portion of the flap surface on the opposite side of the shaft ( 2 ″), in that said sealing portion ( 13 ) surrounds at least a portion of the peripheral edge of said pivotable first portion of said flap surface ( 2 ′), and in that pivoting at least the first portion of the flap surface ( 2 ′) relative to the shaft ( 2 ″) and/or the other portion of the flap surface on the opposite side of the shaft ( 2 ″) generates a return spring force, causing the flap to regain its original shape on load relief and further characterized in that pivoting occurs in a portion of the flap that is relatively proximal to the shaft ( 2 ″) and/or the other portion of the flap surface on the opposite side of the shaft ( 2 ″), which is configured more flexible than the remaining portion of the flap that is relatively distal from the shaft ( 2 ″) and/or the other portion of the flap surface on the opposite side of the shaft ( 2 ″), and wherein the return spring force is formed in the portion of the flap ( 2 ) that is configured more flexible than the remaining portion of the flap ( 2 ).