Fuel-fired appliance with exhaust dilution
US11209188B2 · kind B2 · utility
0Cited by
4References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 13, 2017 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Jan 6, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24H15/464
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A fuel-fired heating appliance comprises a fuel source, an air source, a chamber in which fuel and air mix, a burner downstream from the mixing chamber, an igniter proximate the burner, a heat exchanger, a blower and a flue pipe. An ambient air inlet may be defined by at least one of the outlet end of the blower and the flue pipe extending between the interior of the flue pipe and an area ambient to the flue pipe. A flow rate of combustion gas may be controlled to a level below a steady-state flow rate during appliance warm-up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.