COMMERCIAL COOKING OVEN WITH COMBUSTION DIVIDER
A cooking oven includes a cooking cavity with an opening for enabling food items to be moved into and out of the cooking cavity. A combustion area is located below the cooking cavity and a combustion gas flow space includes paths along left and right external sides of the cooking cavity. A burner is disposed in the combustion area and has a left burner segment disposed left of a centerline of the cooking cavity and a right burner segment disposed right of the centerline of the cooking cavity. A baffle arrangement is located in the combustion area. The baffle arrangement includes an upper baffle that has a low point substantially aligned with the centerline, and a lower baffle wall extending downward from the low point and between the left burner segment and the right burner segment.
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This application relates generally to commercial cooking ovens and, more specifically, to an oven including a combustion dividing baffle arrangement to provide even flow of combustion gases around the sides of the cooking cavity.
BACKGROUNDIn commercial kitchens (e.g., found in restaurant, cafeteria and retail environments) ovens of various types are used for cooking a large variety of food items. ovens utilizing gas-burners for heating of the oven cavity are known. In systems utilizing gas burners difficulties can arise in assuring that combustion gases traverse desired flow paths in a manner that will provide relatively even heating of the oven cavity.
Accordingly, it would be desirable to provide a cooking oven adapted to provide an even flow of combustion gases between desired paths around the cavity.
SUMMARYIn one aspect, a cooking oven includes cavity walls defining an internal cooking cavity with an opening for enabling food items to be moved into and out of the cooking cavity, and at least one door mounted for providing access to the cooking cavity. Firewalls are spaced from and disposed about the cooking cavity to define a space for flow of combustion gases around the cavity walls, including a combustion area below the cooking cavity, a left flow path externally along a left cavity wall and a right flow path externally along a right cavity wall. A burner is disposed in the combustion area and having a left burner segment disposed left of a centerline of the cooking cavity and a right burner segment disposed right of the centerline of the cooking cavity. A baffle arrangement is located in the combustion area, the baffle arrangement configured for directing combustion gases from the left burner segment along the left flow path and for directing combustion gases from the right burner segment along the right flow path.
In another aspect, a cooking oven includes cavity walls defining an internal cooking cavity with an opening for enabling food items to be moved into and out of the cooking cavity, and at least one door mounted for providing access to the cooking cavity. Firewalls are spaced from and disposed about the cooking cavity to define a space for flow of combustion gases around the cavity walls, including a combustion area below the cooking cavity, a left flow path externally along a left cavity wall and a right flow path externally along a right cavity wall. A burner disposed in the combustion area and includes a left burner segment disposed left of a centerline of the cooking cavity and a right burner segment disposed right of the centerline of the cooking cavity. A baffle arrangement is located in the combustion area, the baffle arrangement configured for directing combustion gases from the left burner segment along the left flow path and for directing combustion gases from the right flow segment along the right flow path. The baffle arrangement includes an upper baffle that has a low point substantially aligned with the centerline, and a lower baffle wall extending downward from the low point and between the left burner segment and the right burner segment.
In a further aspect, a cooking oven includes a cooking cavity with an opening for enabling food items to be moved into and out of the cooking cavity. A combustion area is located below the cooking cavity and a combustion gas flow space includes paths along left and right external sides of the cooking cavity. A burner is disposed in the combustion area and has a left burner segment disposed left of a centerline of the cooking cavity and a right burner segment disposed right of the centerline of the cooking cavity. A baffle arrangement is located in the combustion area. The baffle arrangement including a lower baffle wall having a lower portion between the left burner segment and the right burner segment and an upper portion higher than the left burner segment and the right burner segment.
The details of one or more embodiments are set forth in the accompanying drawings and the description below. Other features, objects, and advantages will be apparent from the description and drawings, and from the claims.
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The illustrated oven 10 includes two door assemblies 20, 22, each of which is mounted to the housing 12 for rotation about a respective vertical pivot axis 24, 26 via pivot assemblies 30. The pivoting action enables each of the doors to move independently between a closed position and an open position relative to the cooking cavity. In certain embodiments, the doors 20, 22 may be easily removable from the housing to facilitate cleaning as described in U.S. Patent Publication No. 2015/0211745.
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A burner nozzle 120 is connect to burner segment 64 and provides the gas feed for the entire U-shaped burner. At the front end of the baffle wall a set of lateral mount tabs 122 are provided for securing the baffle wall to a removable combustion cover plate 130, which in turn mounts (e.g., using screws) to a front firewall 132 (see
The baffle structures may, for example, all be formed of stainless steel, as can the cover plate 130.
It is to be clearly understood that the above description is intended by way of illustration and example only, is not intended to be taken by way of limitation, and that other changes and modifications are possible. For example, in certain embodiments, the upper baffle 102 with deep V-shaped segment 106 may suffice to provide even distribution of the combustion gases, eliminating the need for the vertical baffle wall, as shown in
Claims
1. A cooking oven, comprising:
- cavity walls defining an internal cooking cavity with an opening for enabling food items to be moved into and out of the cooking cavity;
- at least one door mounted for providing access to the cooking cavity;
- firewalls spaced from and disposed about the cooking cavity to define a space for flow of combustion gases around the cavity walls, including a combustion area below the cooking cavity, a left flow path externally along a left cavity wall and a right flow path externally along a right cavity wall;
- a burner disposed in the combustion area and having a left burner segment disposed left of a centerline of the cooking cavity and a right burner segment disposed right of the centerline of the cooking cavity; and
- a baffle arrangement in the combustion area, the baffle arrangement configured for directing combustion gases from the left burner segment along the left flow path and for directing combustion gases from the right burner segment along the right flow path.
2. The cooking oven of claim 1 wherein the baffle arrangement includes an upper baffle wall disposed above the burner, the upper baffle wall having a profile that includes a deep V-shaped segment substantially centered on the centerline.
3. The cooking oven of claim 2 wherein a bottom of the deep V-shaped segment is positioned between about ¼ inch and about one inch above a top of the burner.
4. The cooking oven of claim 2 wherein the deep V-shaped segment includes a left side and a right side extending upward from a bottom of the deep V-shaped segment, the left side and the right side are both offset from vertical by no more than about forty degrees.
5. The cooking oven of claim 4 wherein an upper end the left side joins with a more gradually inclined left baffle segment, an upper end of the right side joins with a more gradually inclined right baffle segment.
6. The cooking oven of claim 2 wherein the left baffle segment is offset from vertical by an angle of at least about fifty degrees, and the right baffle segment is offset from vertical by an angle of at least about fifty degrees.
7. The cooking oven of claim 2 wherein the baffle arrangement includes a lower baffle wall extending downward from a bottom of the deep V-shaped segment and between the left burner segment and the right burner segment.
8. The cooking oven of claim 7 wherein the lower baffle wall is connected to a removable cover plate at a front of the combustion area so as to be removable with the cover plate.
9. The cooking oven of claim 7 wherein the lower baffle wall is formed as part of a Y-shaped baffle structure, wherein the bottom of the deep V-shaped segment sits within the Y-shape to provide proper alignment between the lower baffle wall and the deep V-shaped segment.
10. The cooking oven of claim 1 wherein the baffle arrangement includes a baffle wall having a lower portion between the left burner segment and the right burner segment and an upper portion higher than the left burner segment and the right burner segment, the baffle wall connected to a removable cover plate at a front of the combustion area so as to be removable with the cover plate.
11. A cooking oven, comprising:
- cavity walls defining an internal cooking cavity with an opening for enabling food items to be moved into and out of the cooking cavity;
- at least one door mounted for providing access to the cooking cavity;
- firewalls spaced from and disposed about the cooking cavity to define a space for flow of combustion gases around the cavity walls, including a combustion area below the cooking cavity, a left flow path externally along a left cavity wall and a right flow path externally along a right cavity wall;
- a burner disposed in the combustion area and having a left burner segment disposed left of a centerline of the cooking cavity and a right burner segment disposed right of the centerline of the cooking cavity; and
- a baffle arrangement in the combustion area, the baffle arrangement configured for directing combustion gases from the left burner segment along the left flow path and for directing combustion gases from the right flow segment along the right flow path, the baffle arrangement including an upper baffle that has a low point substantially aligned with the centerline, and a lower baffle wall extending downward from the low point and between the left burner segment and the right burner segment.
12. The cooking oven of claim 11 wherein the lower baffle wall is connected to a removable cover plate at a front of the combustion area so as to be removable with the cover plate.
13. The cooking oven of claim 12 wherein the lower baffle wall is supported at its front side by the cover plate and toward its rear side by a downwardly extending support foot.
14. The cooking oven of claim 12 wherein a front side of the lower baffle wall includes at least first and second alignment tabs that engage respectively with first and second alignment slots in the cover plate.
15. The cooking oven of claim 11 wherein the lower baffle wall is formed as part of a Y-shaped baffle structure, wherein the low point of the upper baffle sits within the Y-shape to provide proper alignment between the lower baffle wall and the upper baffle.
16. The cooking oven of claim 11 wherein the lower baffle wall extends along between about forty percent and about eighty percent of a length of the left and right burner segments.
17. A cooking oven, comprising:
- a cooking cavity with an opening for enabling food items to be moved into and out of the cooking cavity;
- a combustion area below the cooking cavity and a combustion gas flow space along left and right external sides of the cooking cavity;
- a burner disposed in the combustion area and having a left burner segment disposed left of a centerline of the cooking cavity and a right burner segment disposed right of the centerline of the cooking cavity; and
- a baffle arrangement in the combustion area, the baffle arrangement including a baffle wall having a lower portion between the left burner segment and the right burner segment and an upper portion higher than the left burner segment and the right burner segment.
18. The cooking oven of claim 17 wherein the baffle wall is connected to a removable cover plate at a front of the combustion area so as to be removable with the cover plate to provide access to the burner.
19. The cooking oven of claim 18 wherein the baffle wall is supported at its front side by the cover plate and toward its rear side by a downwardly extending support foot and is substantially aligned with the centerline.
20. The cooking oven of claim 17 wherein the baffle arrangement includes an upper baffle that has a low point substantially aligned with the centerline, and the baffle wall is formed as part of a Y-shaped baffle structure, wherein the low point of the upper baffle sits within the Y-shape to provide proper alignment between the baffle wall and the upper baffle.
Type: Application
Filed: Aug 22, 2016
Publication Date: Feb 22, 2018
Applicant: ILLINOIS TOOL WORKS INC. (Glenview, IL)
Inventors: Randall B. Diggins (Baltimore, MD), William M. Kirlin, III (Towson, MD), Nicholas C. Stone (Bel Air, MD)
Application Number: 15/242,905