VENTILATION MEANS

• US 20090253362A1
• Filed: 03/18/2009
• Published: 10/08/2009
• Est. Priority Date: 04/08/2008
• Status: Active Grant

• Current Assignee: Gentherm GmbH (Gentherm Incorporated)
• Original Assignee: Wet Automotive Systems AG (Gentherm Incorporated)
• Inventors: Krobok, Martin
• Granted Patent: US 9,085,255 B2
• Time in Patent Office: Days
• US Class Current: 454/120
• CPC Class Codes: A47C 7/74 for ventilation, heating or cooling actuated by rocking the chair A47C3/02
• CPC Class Codes: B60H 1/00285 for vehicle seats vehicle seats with heating or ventilation means independent from the HVAC system of the vehicle B60N2/56
• CPC Class Codes: B60N 2/5642 with circulation of air through a layer inside the seat
• CPC Class Codes: B61D 33/00 Seats

Abstract

This invention relates to a ventilation means, particularly for ventilating surfaces close to or in contact with persons, having at least one air-ducting means which comprises at least a barrier layer, a covering layer and, therebetween, a distribution layer, at least one barrier layer being arranged on a side of said distribution layer facing away from the user, and at least one covering layer being arranged on a side of said distribution layer facing toward a person.

Claims

1. A Ventilation means, particularly for ventilating surfaces close to or in contact with persons, having at least one air-ducting means which comprises at least a barrier layer, a covering layer and, therebetween, a distribution layer, at least one barrier layer being arranged on a side of said distribution layer facing away from the user, and at least one covering layer being arranged on a side of said distribution layer facing toward a person, characterized in that at least one covering layer is at least partially air-permeable and at least partially vapor-permeable, and that the barrier layer is configured at least partially in such manner as to inhibit the passage of air and/or vapor.

2. The Ventilation means according to claim 1, characterized in that a vapor-permeable portion of the covering layer makes up at least 10% of the covering layer'"'"'s surface area and/or of the surface to be ventilated.

3. The Ventilation means according claim 1, characterized in that the covering layer has at least one portion in which the air permeability is less than 50 l/(dm²×

min) and the vapor permeability has an s_D value smaller than 1,500 m.

4. The Ventilation means according to claim 2, characterized in that the entire surface area of the vapor-permeable portions of the covering layer is greater than the entire surface area of the air-permeable portions of the covering layer.

5. The Ventilation means according to claim 1, characterized in that the covering layer includes a non-woven fabric, preferably containing polyester microfibers and/or polyamide fibers, preferably in a percentage mixing ratio of 10 to 90:

60 to 10.

6. A Seat, characterized in that it has at least one ventilation means according to claim 1.

7. A Vehicle, characterized in that it is equipped with at least one ventilation means and/or at least one seat according to claim 1.