Magnesium-alloy vent door for vehicle HVAC system

• US 20040097185A1
• Filed: 11/15/2002
• Published: 05/20/2004
• Est. Priority Date: 11/15/2002
• Status: Abandoned Application

• Current Assignee: Air International, Inc.
• Original Assignee: Air International, Inc.
• Inventors: Golm, Norman, Hoyle, Richard
• Application Number:
  US10/295,381
• Publication Number:
  US 20040097185A1
• Time in Patent Office: Days
• US Class Current: 454/69
• CPC Class Codes: B29C 41/20 incorporating preformed parts or layers, e.g. moulding inserts or for coating articles
• CPC Class Codes: B29C 70/68 by incorporating or moulding on preformed parts, e.g. inserts or layers , e.g. foam blocks mould constructions therefor B29C33/12; joining preformed parts by moulding B29C65/70
• CPC Class Codes: B29K 2705/00 Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
• CPC Class Codes: B60H 1/00671 Damper doors moved by rotation; Grilles
• CPC Class Codes: B60H 2001/007 Manufacturing or assembling

Abstract

A door for use in a vehicle HVAC system is formed to have a portion preferably formed of a magnesium alloy. In one embodiment, the magnesium alloy forms a sub-frame, and a plastic is placed over said sub-frame. In a second embodiment, the door is formed entirely of the alloy

Claims

1. A vehicle HVAC flow system comprising:

a pair of paths, with a door being selectively pivotable to control flow within said two paths; and

said door being formed at least partially of a magnesium alloy.

2. A vehicle HVAC system as recited in claim 1, wherein said door has an underlying magnesium alloy frame, and plastic is placed over said underlying frame.

3. A vehicle HVAC system as recited in claim 2, wherein said frame includes an outer rectangular frame.

4. A vehicle HVAC system as recited in claim 3, wherein crossing ribs cross between said outer frame.

5. A vehicle HVAC system as recited in claim 4, wherein said plastic is an elastomer.

6. A vehicle HVAC system as recited in claim 2, wherein said plastic is an elastomer.

7. A vehicle HVAC system as recited in claim 2, wherein said plastic is a sheet placed about same frame.

8. A vehicle HVAC system as recited in claim 1, wherein said door is formed entirely of said magnesium alloy.

9. A vehicle HVAC system comprising:

a pair of paths, with a door being selectively pivotable to control flow within said two paths; and

said door being formed at an underlying metal frame having plastic placed over said underlying metal frame.

10. A vehicle HVAC system as recited in claim 9, wherein said frame includes an outer rectangular frame.

11. A vehicle HVAC system as recited in claim 10, wherein crossing ribs cross between said outer frame.

12. A vehicle HVAC system as recited in claim 11, wherein said plastic is an elastomer.

13. A vehicle HVAC system as recited in claim 9, wherein said plastic is formed in a sheet which is placed over said underlying metal frame.

14. A vehicle HVAC system as recited in claim 9, wherein said plastic is an elastomer.