Self-powered automatic secondary air controllers for woodstoves and small furnaces

Patent · Tue Jan 01 00:00:00 EST 1991

OSTI ID:867807

Siemer, Darryl D ^[1]

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1. Idaho Falls, ID

A controller for automatically regulating the supply of secondary combustion air to woodstoves and small furnaces. The controller includes a movable air valve for controlling the amount of secondary air admitted into the chamber. A self powered means monitors the concentration of combustible gases and vapors and actuates the movable air valve to increase the supply of secondary air in response to increasing concentrations of the combustible gases and vapors. The self-powered means can be two fluid filled sensor bulbs, one of which has a coating of a combustion catalyst. Alternatively, the self powered means can be two metallic stripes laminated together, one of which is coated with a combustion catalyst, and when heated, causes the air valve to actuate.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5014680
• OSTI ID: 867807
• Country of Publication: United States
• Language: English

Related Subjects

self-powered
automatic
secondary
air
controllers
woodstoves
furnaces
controller
automatically
regulating
supply
combustion
movable
valve
controlling
amount
admitted
chamber
powered
means
monitors
concentration
combustible
gases
vapors
actuates
increase
response
increasing
concentrations
fluid
filled
sensor
bulbs
coating
catalyst
alternatively
metallic
stripes
laminated
coated
heated
causes
actuate
combustible gases
air valve
secondary combustion
fluid filled
combustion air
combustible gas
secondary air
movable air
metallic strip
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