Jet plate for airflow control in an oven

Patent metadata

Field	Value
Publication number	US-9303879-B2
Application number	US-201313782265-A
Country	US
Kind code	B2
Filing date	Mar 1, 2013
Priority date	May 17, 2012
Publication date	Apr 5, 2016
Grant date	Apr 5, 2016

Abstract

A jet plate for directing a flow of air in a cooking chamber of an oven may include a body and a plurality of air delivery orifices. The body may be configured to be disposed along a sidewall of the cooking chamber proximate to a rack or pan support. The air delivery orifices may pass through the body. The air delivery orifices may be disposed to extend transversely across the body and may be distributed along a longitudinal length of the body such that a density of air delivery orifices proximate to one portion of the jet plate is higher than a density of air delivery orifices at another portion of the jet plate.

First claim

That which is claimed:

1. A jet plate for directing a flow of air in a cooking chamber of an oven, the jet plate comprising:
a body configured to be disposed along a sidewall of the cooking chamber proximate to a rack or pan support, wherein the body comprises a first end disposed proximate to a front of the cooking chamber and a second end disposed proximate to a rear of the cooking chamber, wherein the front of the cooking chamber is proximate to a cooking chamber door and the rear of the cooking chamber is distal from the cooking chamber door; and
a plurality of air delivery orifices that pass through the body, the air delivery orifices being disposed to extend transversely across the body, the air delivery orifices being distributed along a longitudinal length of the body from, the first end to the second end, such that a density of air delivery orifices proximate to the first end of the jet plate is higher than a density of air delivery orifices the second end of the jet plate.

2. The jet plate of claim 1 , wherein the air delivery orifices are disposed diagonally to extend from a lower elevation to a higher elevation as they extend transversely across the body.

3. The jet plate of claim 2 , wherein the body is a substantially rectangular shaped, flat plate disposed at the sidewall to enable air to be introduced into the cooking chamber from an air chamber.

4. The jet plate of claim 2 , wherein the jet plate lies flush with the sidewall to separate the cooking chamber from an air chamber through which air is forced by an air generator.

5. The jet plate of claim 1 , wherein a shape of the air delivery orifices is provided such that a width of the air delivery orifices is greater at one elevation than at another elevation.

6. The jet plate of claim 5 , wherein the shape of the air delivery orifices is wider at a higher elevation and less at a lower elevation.

7. The jet plate of claim 6 , wherein the air delivery orifices have a substantially teardrop shape.

8. The jet plate of claim 7 , wherein the air deliver orifices are disposed diagonally to extend from a lower elevation to a higher elevation as they extend transversely across the body.

9. The jet plate of claim 1 , wherein at least some of the air delivery orifices lie substantially parallel to each other.

10. An oven comprising:
a cooking chamber configured to receive a food product;
an air chamber configured to receive air from a fan that draws air from the cooking chamber and distribute the air along at least one sidewall of the cooking chamber; and
a jet plate for directing a flow of the air into the cooking chamber,
wherein the jet plate comprises:
a body configured to be disposed along a sidewall of the cooking chamber proximate to a rack or pan support, wherein the body comprises a first end disposed proximate to a front of the cooking chamber and a second end disposed proximate to a rear of the cooking chamber, wherein the front of the cooking chamber is proximate to a cooking chamber door and the rear of the cooking chamber is distal from the cooking chamber door; and
a plurality of air delivery orifices that pass through the body, the air delivery orifices being disposed to extend transversely across the body, the air delivery orifices being distributed along a longitudinal length of the body, from the first end to the second end, such that a density of air delivery orifices proximate to the first end of the jet plate is higher than a density of air delivery orifices at the second end of the jet plate.

11. The oven of claim 10 , wherein the air delivery orifices are disposed diagonally to extend from a lower elevation to a higher elevation as they extend transversely across the body.

12. The oven of claim 1 , wherein the body is a substantially rectangular shaped, flat plate disposed at the sidewall to enable air to be introduced into the cooking chamber from an air chamber.

13. The oven of claim 12 , wherein the jet plate lies flush with the sidewall to separate the cooking chamber from an air chamber through which air is forced by an air generator.

14. The oven of claim 10 , wherein a shape of the air delivery orifices is provided such that a width of the air delivery orifices is greater at one elevation than at another elevation.

15. The oven of claim 14 , wherein the shape of the air delivery orifices is wider at a higher elevation and less at a lower elevation.

16. The oven of claim 15 , wherein the air delivery orifices have a substantially teardrop shape.

Assignees

• Illinois Tool Works

Inventors

• Price Dale L
• Soller Eric A
• Gratz Kenneth A

Classifications

• F24C15/00 Primary

  Details · CPC title

• F24C15/16

  Shelves, racks or trays inside ovens; Supports therefor · CPC title

• F24C15/325 Primary

  electrically-heated · CPC title

• F24C9/00

  Stoves or ranges heated by a single type of energy supply not covered by groups F24C3/00 - F24C7/00 or subclass F24B (solar heat collectors for heating objects, e.g. solar cookers F24S20/30) · CPC title

• H05B6/6485

  further combined with convection heating · CPC title