Exhaust closure system for a cooking oven

Patent metadata

Field	Value
Publication number	US-10816218-B2
Application number	US-201615579272-A
Country	US
Kind code	B2
Filing date	Jun 14, 2016
Priority date	Jul 2, 2015
Publication date	Oct 27, 2020
Grant date	Oct 27, 2020

Abstract

The present invention relates to an exhaust closure system ( 10 ) for a cooking oven. Said exhaust closure system ( 10 ) is inter-connectable or interconnected between a top wall ( 30 ) of an oven cavity ( 40 ) and an exhaust channel. The exhaust closure system ( 10 ) comprises a lower casing ( 12 ) attachable or attached on the top wall ( 30 ) of the oven cavity ( 40 ) and including at least one inlet opening ( 22 ) in its bottom side. The exhaust closure system ( 10 ) comprises an upper casing ( 14 ) connectable or connected to the exhaust channel and including at least one outlet opening ( 24 ) in its top side. The lower casing ( 12 ) and the upper casing ( 14 ) are permanently or detachably jointed and form a housing of the exhaust closure system ( 10 ). A stationary plate ( 16 ) and a sliding plate ( 18 ) are arranged inside the housing and between the inlet opening ( 22 ) and the outlet opening ( 24 ). The stationary plate ( 16 ) and the sliding plate ( 18 ) lie against each other and include at least one opening ( 26, 28 ) in each case. The sliding plate ( 18 ) is slidable relating to the stationary plate ( 16 ) between a closed state and an opened state. The at least one opening ( 26 ) of the stationary plate ( 16 ) is covered by the sliding plate ( 18 ) in the closed state, while the at least one opening ( 28 ) of the sliding plate ( 18 ) is covered by the stationary plate ( 16 ) in the closed state. The openings ( 26, 28 ) of the stationary plate ( 16 ) and the sliding plate ( 18 ) overlap at least partially in the opened state. Further, the present invention relates to a cooking oven with at least one exhaust closure system ( 10 ).

First claim

The invention claimed is:

1. An exhaust closure system for a cooking oven, wherein said exhaust closure system is interconnectable or interconnected between a top wall of an oven cavity and an exhaust channel, and wherein:
the exhaust closure system comprises a lower casing attachable or attached on the top wall of the oven cavity,
the lower casing includes at least one inlet opening in its bottom side,
the exhaust closure system comprises an upper casing connectable or connected to the exhaust channel,
the upper casing includes at least one outlet opening in its top side,
the lower casing and the upper casing are permanently or detachably jointed and form a housing of the exhaust closure system,
a stationary plate and a sliding plate are arranged inside the housing and between the inlet opening and the outlet opening,
the stationary plate and the sliding plate lie against each other,
each of the stationary plate and the sliding plate includes at least one opening,
the sliding plate is slidable relating to the stationary plate between a closed state and an opened state,
the at least one opening of the stationary plate is covered by the sliding plate in the closed state,
the at least one opening of the sliding plate is covered by the stationary plate in the closed state,
the openings of the stationary plate and the sliding plate overlap at least partially in the opened state,
the upper casing includes at least one neck in which the outlet opening is formed, and
at least one catalytic filter element is arranged between the lower casing and the stationary plate.

2. The exhaust closure system according to claim 1 , wherein the openings of the stationary plate and the sliding plate are congruent or at least substantially congruent to each other.

3. The exhaust closure system according to claim 1 , wherein the openings of the stationary plate and the sliding plate are slots extending perpendicular to a sliding direction of the sliding plate.

4. The exhaust closure system according to claim 1 , wherein the sliding plate includes a drive arm.

5. The exhaust closure system according to claim 1 , wherein the inlet opening and/or the outlet opening is/are formed as round holes.

6. The exhaust closure system according to claim 1 , wherein the inlet opening and/or the outlet opening have/has a diameter between 10 mm and 80 mm.

7. The exhaust closure system according to claim 1 , wherein the sliding plate includes at least one steam slot arranged beside the opening and/or between the openings of said sliding plate, wherein the steam slot and the opening of the stationary plate overlap in the closed state, so that a minimum passage between the inlet opening and the outlet opening is provided in the closed state.

8. The exhaust closure system according to claim 1 , wherein the sliding plate is arranged slidably above the stationary plate.

9. The exhaust closure system according to claim 1 , wherein the exhaust closure system comprises at least one heat transfer plate arranged below the catalytic filter element.

10. A cooking oven comprising an oven cavity and at least one exhaust channel, wherein the cooking oven comprises at least one exhaust closure system according to claim 1 , wherein said exhaust closure system is interconnected between a top wall of the oven cavity and the exhaust channel.

11. The cooking oven according to claim 10 , wherein the cooking oven comprises at least one actuator directly or indirectly connected to the sliding plate of the exhaust closure system, wherein said actuator is provided for moving the sliding plate between the closed state and opened state.

12. The cooking oven according to claim 10 , wherein the actuator is connected to the drive arm of the sliding plate via at least one actuator arm.

13. The cooking oven according to claim 10 , wherein the exhaust closure system and/or the actuator is/are fixed on the top wall of the oven cavity.

14. The cooking oven according to claim 10 , wherein the cooking oven comprises at least one external catalytic filter element arranged between the exhaust closure system and a cavity opening in the top wall of the oven cavity.

15. The exhaust closure system according to claim 4 , said drive arm and said sliding plate being formed as a single-piece part.

16. The exhaust closure system according to claim 6 , said diameter being between 20 mm and 40 mm.

17. An exhaust closure system for a cooking oven, comprising:
a lower casing having an inlet opening therein and an upper casing having at least one neck in which an outlet opening is formed, said lower and upper casings together forming a housing;
a sliding plate having a first opening therein and a stationary plate having a second opening therein disposed within said housing, said sliding plate being arranged adjacent to and linearly slidable upon the stationary plate between an open state and a closed state for said closure system;
said first and second openings having a maximum degree of overlap to establish a maximum degree of fluid communication from said inlet opening, through each of said first and second openings in the respective sliding and stationary plates and out said outlet opening in said open position, and said first and second openings having no overlap in said closed state;
said sliding plate being continuously slidable via an actuator so that a cross-section of a passage defined by the degree of overlap between said first and second openings is steplessly variable between the open and closed states in order to steplessly vary the degree of fluid communication up to said maximum degree;
said closure system being a modular component that can be independently installed in a cooking oven with its inlet opening in communication with an oven cavity of the cooking oven, and its outlet opening in communication with an exhaust channel of the cooking oven; and
a catalytic filter element arranged between said lower casing and said stationary plate, above said inlet opening.

18. The exhaust closure system according to claim 17 , said sliding plate further comprising a steam slot smaller than and arranged adjacent to said first opening, said steam slot being aligned such that in said closed state the steam slot overlaps with said second opening in the stationary plate.

19. The exhaust closure system according to claim 18 , further comprising a heat transfer plate arranged between said lower casing and said stationary plate, above said inlet opening.

Assignees

• Electrolux Appliances AB

Inventors

• Langhammer Klaus
• Specht Trevor
• Brenz Reiner

Classifications

• F24C15/2014

  with means for oxidation of cooking fumes · CPC title

• F24B1/1806

  Mounting of closed stoves in a fireplace · CPC title

• F24C15/20

  Removing cooking fumes (parts, details or accessories of cooking-vessels for withdrawing or condensing cooking vapours from such vessels A47J36/38) · CPC title

• F24C15/2007 Primary

  from oven cavities · CPC title

• F24C15/2021

  Arrangement or mounting of control or safety systems · CPC title