US 12,140,315 B2
Ventilation system for cooking appliance
Zachary J. Bruin-Slot, Baroda, MI (US); Massimiliano Daniele, Cassinetta (IT); Robert Scott Donarski, St. Joseph, MI (US); Emilio Fagundes, St. Joseph, MI (US); Gregory Tadeu Gargioni, St. Joseph, MI (US); Vando Sestrem, Joinville (BR); and Yasmim Silvano, Joinville (BR)
Assigned to Whirlpool Corporation, Benton Harbor, MI (US)
Filed by WHIRLPOOL CORPORATION, Benton Harbor, MI (US)
Filed on Dec. 6, 2021, as Appl. No. 17/543,079.
Application 17/543,079 is a continuation of application No. 16/811,598, filed on Mar. 6, 2020, granted, now 11,226,106.
Application 16/811,598 is a continuation of application No. 16/018,877, filed on Jun. 26, 2018, granted, now 10,627,116, issued on Apr. 21, 2020.
Prior Publication US 2022/0090796 A1, Mar. 24, 2022
Int. Cl. F24C 15/00 (2006.01); F24C 15/20 (2006.01); F24C 15/32 (2006.01)
CPC F24C 15/006 (2013.01) [F24C 15/2007 (2013.01); F24C 15/2021 (2013.01); F24C 15/322 (2013.01)] 20 Claims
OG exemplary drawing
 
1. 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 blower that selectively operates to move cooling air through the outer cooling path and to an air outlet;
a first vent aperture extending between the first heating cavity and the outer cooling path, wherein the first vent aperture directs upper cavity air into the outer cooling path;
a second vent aperture extending between the second heating cavity and the outer cooling path, wherein the second vent aperture directs lower cavity air into the outer cooling path to be combined with the cooling air at a downstream location;
a ventilation channel defined within a portion of the outer cooling path, the ventilation channel including a first low-pressure space proximate and upstream of the blower and a second low-pressure space proximate the air outlet, wherein an upper portion of the ventilation channel extends from the first vent aperture and into the first low-pressure space, and wherein a lower portion of the ventilation channel extends from the blower to the second low-pressure space.