Ventilation system for cooking appliance
First Claim
1. A cooking appliance comprising:
- a housing having a first heating cavity defined therein, wherein a heat source is in thermal communication with the first heating cavity;
a cooling channel disposed proximate a sidewall of the housing;
a blower that selectively operates to move at least cooling air through the cooling channel and to an air outlet;
a first vent aperture extending through the sidewall between the first heating cavity and a ventilation channel, wherein the ventilation channel includes a narrowed portion proximate the first vent aperture, wherein during operation of the blower, the narrowed portion defines a low static-pressure region of the ventilation channel that draws cavity air from the first heating cavity and directs the cavity air into the ventilation channel to be combined with the cooling air;
a second heating cavity positioned within the housing and below the first heating cavity;
a second vent aperture extending through the housing between the second heating cavity and ventilation channel, wherein the ventilation channel includes a second narrowed portion proximate the second vent aperture, wherein during operation of the blower, the second narrowed portion defines a low static-pressure region of the second narrowed portion of the ventilation channel that draws secondary cavity air from the second heating cavity and directs the secondary cavity air into the ventilation channel to be combined with the cooling air, wherein the low static-pressure region of the second narrowed portion draws the secondary cavity air through the second vent aperture in an exhaust direction to define an air curtain, wherein the air curtain directs the cavity air from the first vent aperture of the first heating cavity toward the air outlet and away from the second vent aperture.
2 Assignments
0 Petitions
Accused Products
Abstract
A cooking appliance includes a housing having a heating cavity defined therein, wherein a heat source is in thermal communication with the heating cavity. A cooling channel is disposed proximate a sidewall of the housing. A blower selectively operates to move at least cooling air through the cooling channel and to an air outlet. A vent aperture extends through the sidewall between the heating cavity and a ventilation channel. The ventilation channel includes a narrowed portion proximate the vent aperture, wherein during operation of the blower, the narrowed portion defines a low static pressure region of the ventilation channel that draws cavity air from the heating cavity and directs the cavity air into the ventilation channel to be combined with the cooling air.
-
Citations
16 Claims
-
1. A cooking appliance comprising:
-
a housing having a first heating cavity defined therein, wherein a heat source is in thermal communication with the first heating cavity; a cooling channel disposed proximate a sidewall of the housing; a blower that selectively operates to move at least cooling air through the cooling channel and to an air outlet; a first vent aperture extending through the sidewall between the first heating cavity and a ventilation channel, wherein the ventilation channel includes a narrowed portion proximate the first vent aperture, wherein during operation of the blower, the narrowed portion defines a low static-pressure region of the ventilation channel that draws cavity air from the first heating cavity and directs the cavity air into the ventilation channel to be combined with the cooling air; a second heating cavity positioned within the housing and below the first heating cavity; a second vent aperture extending through the housing between the second heating cavity and ventilation channel, wherein the ventilation channel includes a second narrowed portion proximate the second vent aperture, wherein during operation of the blower, the second narrowed portion defines a low static-pressure region of the second narrowed portion of the ventilation channel that draws secondary cavity air from the second heating cavity and directs the secondary cavity air into the ventilation channel to be combined with the cooling air, wherein the low static-pressure region of the second narrowed portion draws the secondary cavity air through the second vent aperture in an exhaust direction to define an air curtain, wherein the air curtain directs the cavity air from the first vent aperture of the first heating cavity toward the air outlet and away from the second vent aperture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A ventilation system for a cooking appliance, the ventilation system comprising:
-
a housing having a sidewall and a first heating cavity defined within the housing; a second heating cavity positioned within the housing and below the first heating cavity; an outer cooling path that extends around at least a portion of the housing; a ventilation channel disposed proximate the sidewall of the housing and at least partially within the outer cooling path; a blower that selectively operates to move cavity air through the ventilation channel and to an air outlet; a first vent aperture extending through the sidewall between the first heating cavity and the ventilation channel, wherein the ventilation channel includes a first narrowed portion proximate the first vent aperture; a second vent aperture extending through the housing between the second heating cavity and the ventilation channel, wherein the ventilation channel includes a second narrowed portion proximate the second vent aperture, wherein the second narrowed portion selectively draws secondary cavity air from the second heating cavity and directs the secondary cavity air into the ventilation channel to be combined with the cooling air at a downstream location; a first low pressure space defined within the outer cooling path proximate the blower, wherein the ventilation channel extends from the first vent aperture and into the first low pressure space, wherein the blower contemporaneously draws cooling air through the outer cooling path and cavity air through the ventilation channel, and wherein the first low pressure space and the ventilation channel maintains the cavity air contained within the ventilation channel to be combined with cooling air at the downstream location; and a secondary low pressure region that draws the secondary cavity air through the second vent aperture in an exhaust direction to define an air curtain, wherein the air curtain directs cavity air from the first vent aperture of the first heating cavity toward the air outlet and away from the second vent aperture. - View Dependent Claims (10, 11, 12)
-
-
13. A cooking appliance comprising:
-
an upper housing that defines an upper heating cavity; a lower housing that defines a lower heating cavity; an outer cooling path that extends around at least a portion of the upper and lower housings to an air outlet; upper and lower blowers that operate to selectively move cooling air through the outer cooling path; a ventilation channel at least partially disposed within the outer cooling path, the ventilation channel extending from a first vent aperture defined within the upper heating cavity to a downstream location of the outer cooling path;
whereinoperation of at least the lower blower contemporaneously moves the cooling air through the outer cooling path and moves cavity air from the upper heating cavity and to the downstream location via the ventilation channel; the cooling air and the cavity air combine at the downstream location; and a second vent aperture extending through the lower housing between the lower heating cavity and the ventilation channel, wherein the ventilation channel further includes a second narrowed portion proximate the second vent aperture, wherein during operation of the lower blower, the second narrowed portion defines a low static-pressure region of the second narrowed portion of the ventilation channel that draws secondary cavity air from the lower heating cavity and directs the secondary cavity air into the ventilation channel to be combined with the cooling air, wherein the low static-pressure region of the second narrowed portion draws the secondary cavity air through the second vent aperture in an exhaust direction to define an air curtain, wherein the air curtain directs the cavity air from the first vent aperture of the upper heating cavity toward the air outlet and away from the second vent aperture. - View Dependent Claims (14, 15, 16)
-
Specification