Oven with recirculation of combustion exhaust gases
US9372000B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2013 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Aug 2, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA21B1/28
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An oven includes a cooking chamber, a gas-fired heat exchanger external of the cooking chamber and a flow path for circulating air from the cooking chamber past the heat exchanger to pick-up heat and then back to the cooking chamber under operation of a blower. A first combustion path gas flow path runs from the heat exchanger to an exhaust system for delivering combustion path gases away from the oven, and a second combustion path gas flow path runs from the heat exchanger to the cooking chamber for delivering combustion path gases into the cooking chamber. A control arrangement is configured to selectively control the flow of combustion path gases along at least one of the first combustion gas flow path or the second combustion gas flow path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.