Oven with improved airflow

Patent metadata

Field	Value
Publication number	US-11564396-B2
Application number	US-201916298333-A
Country	US
Kind code	B2
Filing date	Mar 11, 2019
Priority date	Mar 11, 2019
Publication date	Jan 31, 2023
Grant date	Jan 31, 2023

Abstract

An oven may include inner oven walls defining a cavity. The oven may further include a heating element configured to heat air in the oven. The oven may further include a fan positioned between the rear of the oven and the heating element. The fan may be configured to: draw air from the front of the oven to the rear of the oven; blow the drawn air over the heating element to produce heated air; and distribute the heated air within the oven.

First claim

What is claimed is:

1. An oven, comprising:
inner oven walls defining a cavity within the oven, wherein the oven has a front and a rear;
a meal carrier positioned within the cavity of the oven, the meal carrier having a front and a rear corresponding to the front and the rear of the oven, respectively, the meal carrier including a top wall, two side walls, and a bottom wall, the front and the rear of the meal carrier being open to allow a flow of air through the meal carrier from the rear of the oven to the front of the oven, the meal carrier including a plurality of meal trays positioned generally parallel to the top wall and the bottom wall of the meal carrier;
at least one heating element configured to heat air in the oven, the at least one heating element positioned between the meal carrier and the rear of the oven; and
at least one fan positioned between the rear of the oven and the at least one heating element, the at least one fan configured to:
draw air from the front of the oven between the meal carrier and the inner oven walls to the rear of the oven;
blow the drawn air over the at least one heating element to produce heated air; and
distribute the heated air through the meal carrier between meal trays of the plurality of meal trays; and

at least two air deflectors configured to direct the air from the front of the oven between the meal carrier and the inner oven walls to the rear of the oven while preventing the heated air from the at least one fan from blowing between the meal carrier and the inner oven walls,
at least one air deflector positioned between the plurality of meal trays and the at least one heating element, each of the at least one air deflector configured to direct the heated air between two meal trays of the plurality of meal trays, wherein each of the at least one air deflector is positioned at a height between heights of two meal trays of the plurality of meal trays or at a same height as a height of one of the plurality of meal trays,
wherein each of the at least one heating element is positioned at a height between heights of two meal trays of the plurality of meal trays or at a same height as a height of one of the plurality of meal trays,
wherein the at least one fan comprises at least four fans arranged in an array of at least two columns of vertically arranged fans.

2. The oven of claim 1 , wherein the at least two air deflectors are four air deflectors, wherein one of the four air deflectors extends, at least in part, from the top wall of the meal carrier toward the rear of the oven, wherein another of the four air deflectors extends, at least in part, from the bottom wall of the meal carrier toward the rear of the oven, wherein two of the four air deflectors extend, at least in part, from the two side walls of the meal carrier toward the rear of the oven.

3. The oven of claim 1 , further comprising at least one first air deflector, the at least one first air deflector positioned between the plurality of meal trays and the at least one heating element, each of the at least one first air deflector configured to direct the heated air between two meal trays of the plurality of meal trays, the at least two air deflectors configured to direct the air from the front of the oven between the meal carrier and the inner oven walls to the rear of the oven while preventing the heated air from the at least one fan from blowing between the meal carrier and the inner oven walls.

4. The oven of claim 1 , further comprising a baffle plate positioned between the meal trays and the at least one heating element, the baffle plate including a plurality of baffles and a plurality of openings, the baffle plate configured to direct the heated air between meal trays of the plurality of meal trays.

5. The oven of claim 1 , wherein the oven is configured to evenly distribute heated air over the meal trays.

6. The oven of claim 1 , wherein at least one of the at least one fan is a radial fan.

7. The oven of claim 1 , wherein at least one of the at least one fan is an axial fan.

8. The oven of claim 1 , wherein at least one of the at least one fan is a tangential fan.

9. The oven of claim 1 , wherein the oven is an oven insert of an aircraft galley.

10. A system, comprising:
an oven, comprising:
inner oven walls defining a cavity within the oven, wherein the oven has a front and a rear;
at least one heating element configured to heat air in the oven; and
at least one fan positioned between the rear of the oven and the at least one heating element, the at least one fan configured to:
draw air from the front of the oven to the rear of the oven;
blow the drawn air over the at least one heating element to produce heated air; and
distribute the heated air within the oven; and

at least two air deflectors configured to direct the air from the front of the oven between the meal carrier and the inner oven walls to the rear of the oven while preventing the heated air from the at least one fan from blowing between the meal carrier and the inner oven walls,
at least one air deflector positioned between the plurality of meal trays and the at least one heating element, each of the at least one air deflector configured to direct the heated air between two meal trays of the plurality of meal trays, wherein each of the at least one air deflector is positioned at a height between heights of two meal trays of the plurality of meal trays or at a same height as a height of one of the plurality of meal trays,
wherein each of the at least one heating element is positioned at a height between heights of two meal trays of the plurality of meal trays or at a same height as a height of one of the plurality of meal trays,
wherein the at least one fan comprises at least four fans arranged in an array of at least two columns of vertically arranged fans.

11. The system of claim 10 , wherein the oven is implemented in an aircraft galley.

12. An aircraft galley, comprising:
an oven insert, comprising:
inner oven walls defining a cavity within the oven insert, wherein the oven insert has a front and a rear;
a meal carrier positioned within the cavity of the oven insert, the meal carrier having a front and a rear corresponding to the front and the rear of the oven insert, respectively, the meal carrier including a top wall, two side walls, and a bottom wall, the front and the rear of the meal carrier being open to allow a flow of air through the meal carrier from the rear of the oven insert to the front of the oven insert, the meal carrier including a plurality of meal trays positioned generally parallel to the top wall and the bottom wall of the meal carrier;
at least one heating element configured to heat air in the oven insert, the at least one heating element positioned between the meal carrier and the rear of the oven insert; and
at least one fan positioned between the rear of the oven insert and the at least one heating element, the at least one fan configured to:
draw air from the front of the oven insert between the meal carrier and the inner oven walls to the rear of the oven insert;
blow the drawn air over the at least one heating element to produce heated air; and
distribute the heated air through the meal carrier between meal trays of the plurality of meal trays; and

at least two air deflectors configured to direct the air from the front of the oven between the meal carrier and the inner oven walls to the rear of the oven while preventing the heated air from the at least one fan from blowing between the meal carrier and the inner oven walls,
at least one air deflector positioned between the plurality of meal trays and the at least one heating element, each of

Assignees

• Be Aerospace Inc

Inventors

• Ten Dam Martijn

Classifications

• A21B3/15

  Baking sheets; Baking boards · CPC title

• F24C15/30

  Arrangements for mounting stoves or ranges in particular locations · CPC title

• F24C15/322

  with forced circulation · CPC title

• A21B1/26 Primary

  by hot air · CPC title

• F24C15/325

  electrically-heated · CPC title