# US 10,119,706 B2 · Home cooking appliance having a rear exhaust louver

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- Number: US 10,119,706 B2
- Document ID: US10119706B2
- Status: Granted
- Kind: B2
- Application number: 14/273,852
- Filed: 2014-05-09
- Published: 2015-11-12
- Granted: 2018-11-06
- Earliest claimed: 2014-05-09
- Assignees: BSH Home Appliances Corporation; BSH Hausgeräte GmbH
- Applicants: BSH Home Appliances Corporation; BSH Bosch und Siemens Hausgeräte GmbH
- Inventors: Temple Chadwick; David Dysinger; Michael Gerdes
- Web page: https://patentgrep.com/patent/US10119706B2

## CPC

- F24C 15/006: {Arrangements for circulation of cooling air}
- F24C 15/32: Arrangements of ducts for hot gases, e.g. in or around baking ovens
- F24C 15/322: {with forced circulation}
- F24C: DOMESTIC STOVES OR RANGES (exclusively for solid fuels F24B); DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION

## Abstract

A home cooking appliance includes a housing, a cooking surface on a top of the housing, a cooking compartment in the housing, a cooling air system conveying air through the housing, and a rear exhaust louver on the housing, the rear exhaust louver in fluid communication with the cooling air system and exhausting a portion of the air from the housing in an upward direction substantially in a plane of the rear wall of the housing to increase air pressure along a kitchen wall adjacent to the rear wall of the appliance.

## Claims

### Claim 1

A home cooking appliance comprising:
a housing;
a cooking surface on a top of the housing;
a cooking compartment in the housing;
a cooling air system having a cooling fan conveying air through the housing;
a rear vent trim at a rear side of the top of the housing; and
a rear exhaust louver on the housing, the rear exhaust louver in fluid communication with the cooling air system and exhausting a portion of the air received from the cooling fan under pressure from the housing in an upward direction substantially in a plane of a rear wall of the rear vent trim to form a pressurized air wash blowing in the upward direction between a rear wall of the rear vent trim and a kitchen wall adjacent to the rear wall of the appliance.

### Claim 2 (depends on 1)

The home cooking appliance of claim 1, wherein the rear exhaust louver is disposed on an exterior surface of a rear wall of the housing, the rear exhaust louver exhausting the portion of the air under pressure from the housing to form the pressurized air wash originating along the exterior surface of the rear wall of the housing and blowing in the upward direction along the exterior surface of the rear wall of the housing and the pressurized air wash continuing upward along an exterior surface of the rear wall of the rear vent trim.

### Claim 3 (depends on 1)

The home cooking appliance of claim 1, wherein the upward direction is a vertical upward direction.

### Claim 4 (depends on 1)

The home cooking appliance of claim 1, wherein the upward direction is a direction extending at an angle other than a vertical direction and a horizontal direction.

### Claim 5 (depends on 1)

The home cooking appliance of claim 1, wherein the rear exhaust louver is disposed at a central region with respect to a width of the housing.

### Claim 6 (depends on 1)

The home cooking appliance of claim 1, wherein the rear exhaust louver is disposed at an outer region with respect to a width of the housing.

### Claim 7 (depends on 1)

The home cooking appliance of claim 1, wherein the rear exhaust louver is disposed on the rear wall of the housing and directs the air in the upward direction along an exterior surface of the rear wall of the housing.

### Claim 8 (depends on 7)

The home cooking appliance of claim 7, wherein the rear exhaust louver is disposed at a central region with respect to a width of the rear wall of the housing.

### Claim 9 (depends on 7)

The home cooking appliance of claim 7, wherein the rear exhaust louver is disposed at an outer region with respect to a width of the rear wall of the housing.

### Claim 10 (depends on 7)

The home cooking appliance of claim 7, wherein the rear exhaust louver includes a deflector that directs the air from the rear exhaust louver in the upward direction along the exterior surface of the rear wall of the housing.

### Claim 11 (depends on 7)

The home cooking appliance of claim 7, wherein the rear exhaust louver includes at least one divider that divides the air from the rear exhaust louver into a plurality of flow paths.

### Claim 12 (depends on 1)

The home cooking appliance of claim 1, wherein the rear exhaust louver comprises: a plurality of rear exhaust louvers on the housing, each of the plurality of rear exhaust louvers in fluid communication with the cooling air system and exhausting part of the portion of the air received from the cooling fan under pressure from the housing in the upward direction substantially in the plane of the rear wall of the housing.

### Claim 13 (depends on 12)

The home cooking appliance of claim 12, wherein the plurality of rear exhaust louvers are disposed on the rear wall of the housing.

### Claim 14 (depends on 13)

The home cooking appliance of claim 13, wherein the plurality of rear exhaust louvers are disposed in a central region across a width of the rear wall of the housing.

### Claim 15 (depends on 13)

The home cooking appliance of claim 13, wherein the plurality of rear exhaust louvers are arranged in a spaced manner across a width of the rear wall of the housing.

### Claim 16 (depends on 13)

The home cooking appliance of claim 13, wherein at least two of the plurality of rear exhaust louvers have one of different shapes and different sizes.

### Claim 17 (depends on 12)

The home cooking appliance of claim 12, wherein a higher concentration of the plurality of rear exhaust louvers are disposed at a central region with respect to a width of the housing.

### Claim 18 (depends on 12)

The home cooking appliance of claim 12, wherein a higher concentration of the plurality of rear exhaust louvers are disposed at an outer region with respect to a width of the housing.

### Claim 19 (depends on 12)

The home cooking appliance of claim 12, wherein the plurality of rear exhaust louvers are configured such that the pressurized air wash blowing in the upward direction has a higher pressure at a central region of the rear wall than at an outer region of the rear wall.

### Claim 20 (depends on 12)

The home cooking appliance of claim 12, wherein the plurality of rear exhaust louvers are distributed evenly across a width of the rear wall of the housing, the plurality of rear exhaust louvers configured such that the pressurized air wash blowing in the upward direction has a higher pressure at a central region of the rear wall than at an outer region of the rear wall.

### Claim 21 (depends on 12)

The home cooking appliance of claim 12, wherein the plurality of rear exhaust louvers are equally spaced across a width of the rear wall of the housing such that the pressurized air wash extends across the width of the rear wall of the housing, and
wherein at least one of a number, a size, or a shape of the rear exhaust louvers at each location across the width of the rear wall is configured such that the pressurized air wash blowing in the upward direction has a higher pressure at a central region of the rear wall than at an outer region of the rear wall.

### Claim 22 (depends on 12)

The home cooking appliance of claim 12, wherein the plurality of rear exhaust louvers includes:
a first horizontal row of louvers arranged in a spaced manner across a width of the rear wall of the housing such that the pressurized air wash extends across the width of the rear wall of the housing; and
at least a second horizontal row of louvers disposed in a central region of the rear wall and aligned in vertical rows with a group of louvers of the first horizontal row of louvers disposed in the central region of the rear wall such that the pressurized air wash has a higher pressure at the central region of the rear wall than at an outer region of the rear wall.

### Claim 23 (depends on 22)

The home cooking appliance of claim 22, wherein the first horizontal row of louvers is equally spaced across the width of the rear wall of the housing.

### Claim 24 (depends on 12)

The home cooking appliance of claim 12, wherein the plurality of rear exhaust louvers includes:
a first horizontal row of louvers arranged in a spaced manner across a width of the rear wall of the housing such that the pressurized air wash extends across the width of the rear wall of the housing; and
a plurality of second horizontal rows of louvers disposed in a central region of the rear wall and aligned in vertical rows with a group of louvers of the first horizontal row of louvers disposed in the central region of the rear wall such that the pressurized air wash has a higher pressure at the central region of the rear wall than at an outer region of the rear wall.

### Claim 25 (depends on 1)

The home cooking appliance of claim 1, wherein the cooking surface has an upper surface, and
wherein the rear vent trim has an upper surface that is substantially flush with the upper surface of the cooking surface, the rear vent trim including an opening permitting additional air to exit from the housing from the rear vent trim, and the rear vent trim directing the additional air away from a 90° angle with respect to the upper surface of the cooking surface.

### Claim 26 (depends on 25)

The home cooking appliance of claim 25, wherein the additional air includes a second portion of the air from the cooling air system.

### Claim 27 (depends on 25)

The home cooking appliance of claim 25, wherein the rear vent trim includes a deflector that directs the air away from the 90° angle with respect to the upper surface of the cooking surface and through the opening in the rear vent trim.

### Claim 28 (depends on 25)

The home cooking appliance of claim 25, wherein the opening is in the upper surface of the rear vent trim.

### Claim 29 (depends on 25)

The home cooking appliance of claim 25, wherein the opening comprises one of:
a first opening in fluid communication with a first air channel for exhausting a second portion of the air from the cooling air system from the housing; and
a second opening in fluid communication with a flue for exhausting flue gas from a cooking compartment within the housing.

### Claim 30 (depends on 1)

The home cooking appliance of claim 1, wherein the cooking surface has an upper surface, and
wherein the rear exhaust louver comprises a plurality of rear exhaust louvers on the rear wall of the housing, the plurality of rear exhaust louvers in fluid communication with the cooling air system and each exhausting a part of the portion of the air in the upward direction substantially in the plane of the rear wall of the housing; and
wherein the rear vent trim has an upper surface that is substantially flush with the upper surface of the cooking surface, the rear vent trim including a plurality of openings permitting additional air to exit from the housing from the rear vent trim, and the rear vent trim directing the additional air away from a 90° angle with respect to the upper surface of the cooking surface,
wherein the additional air includes a second portion of the air from the cooling air system.

### Claim 31 (depends on 30)

The home cooking appliance of claim 30, wherein the portion of the air exhausted from the plurality of rear exhaust louvers is greater than the second portion of the air exhausted from the plurality of openings of the rear vent trim on the top of the housing.

### Claim 32 (depends on 30)

The home cooking appliance of claim 30, wherein the portion of the air exhausted from the plurality of rear exhaust louvers is less than the second portion of the air exhausted from the plurality of openings of the rear vent trim on the top of the housing.

### Claim 33 (depends on 30)

The home cooking appliance of claim 30, wherein the portion of the air exhausted from the plurality of rear exhaust louvers is substantially equal to the second portion of the air exhausted from the plurality of openings of the rear vent trim on the top of the housing.

### Claim 34 (depends on 30)

The home cooking appliance of claim 30, wherein the plurality of openings comprise:
a first opening in fluid communication with a first air channel for exhausting the second portion of the air exhausted from the cooling air system from the housing, and
a second opening in fluid communication with a flue for exhausting flue gas from a cooking compartment within the housing,
wherein each of the first air channel and the second air channel are separate from each other such that the second portion of the air exhausted from the cooling air system and the flue gas are prevented from mixing with each other prior to exiting the plurality of openings of the rear vent trim.

### Claim 35

A home cooking appliance comprising:
a housing;
a cooking surface on a top of the housing;
a cooking compartment in the housing;
a cooling air system having a cooling fan conveying air through the housing; and
means for exhausting a portion of the air received from the cooling fan under pressure from the housing in an upward direction substantially in a plane of the rear wall of the housing and forming a pressurized air wash blowing in the upward direction along a kitchen wall adjacent to the rear wall of the appliance.

### Claim 36 (depends on 35)

The home cooking appliance of claim 35, further comprising:
second means for exhausting a second portion of the air from the cooling air system from a top of the housing.
