Door with a built-in burner for a heating appliance
AssigneeGiannoni France
InventorJoseph Le Mer
Life of this patent
Estimating the term…
Abstract
A door with a gas burner on an inner surface and a system for carrying a combustible gas to the burner on the outer surface thereof. The door comprises a pair of metal sheets rigidly connected to one another at the edges thereof, each sheet having input and output openings for the gas mixture that are mutually separated in order to leave an inner space receiving a deflector plate serving as a thermal shield to be swept over on either side by the flow of the gas mixture supplying the burner. This arrangement reduces heat loss through the door; thus, keeping the outer surface cold, avoiding the risk of burns, and preheating the gas mixture. The invention can be used in heating appliances.
Claims17
A door with a built-in burner for a heating appliance comprising:
- An internal face with a gas burner and an external face with a system for feeding a combustible gas mixture to the burner, the door being adapted to engage into a frame of a wall of the heating appliance and to be removably attached to the frame,
- Wherein the door includes an outer door metal sheet firmly attached to an inner door metal sheet at their periphery, the outer door metal sheet having in a central zone with an inlet opening having an inlet dimension for the arrival of said gas mixture and the inner door metal sheet having a central zone with an outlet opening having an outlet dimension coaxial with said inlet opening,
- Wherein the burner is attached to the outlet opening,
- Wherein the inner and outer door metal sheets are spaced apart from each other at their respective central zones, making between them an interior door space,
- Wherein a deflector plate is fixedly mounted inside the interior door space,
- Wherein the deflector plate has the shape of a disc with a disc diameter that is greater than the inlet and outlet dimensions, the deflector plate being coaxial with the inlet and outlet openings,
- wherein the deflector plate includes an outer deflector metal sheet and an inner deflector metal sheet attached to each other at their periphery, the inner and outer deflector metal sheets being parallel and slightly spaced apart at their respective central portions to form an interior deflector space,
- Wherein the deflector plate is shaped and dimensioned so that the gas mixture flow penetrating into the heating appliance flows through said inlet opening, is deflected towards the periphery of the outer deflector metal sheet, circumvents the peripheral edge of the deflector plate, and then flows between the inner deflector metal sheet and the inner door metal sheet, onto the internal face of the deflector plate, and out through said outlet opening to penetrate into the burner, and
- Wherein the outer deflector metal sheet has a nipple-shaped central portion with a tip turned towards the inlet opening for promoting the radial distribution of the flow of the gas mixture penetrating through said inlet opening.
Dependencies are inferred from the claim text.