F - Mech Eng,Light,Heat,Weapons – 23 – L
Patent
F - Mech Eng,Light,Heat,Weapons
23
L
158/17, 122/28
F23L 15/00 (2006.01) C03B 5/235 (2006.01) F23L 5/04 (2006.01) F27B 3/22 (2006.01)
Patent
CA 1224709
Abstract of the Disclosure In a multiport combustion furnace having a plurality of firing ports in undivided communication with a common source of combustion gas or air, the invention provides a method and apparatus for selective control of combustion air flow into one or more of the ports. A small quantity of pressurized gas, e.g. air, is injected, e.g. by way of a flow control pipe in an individual port, generally along the flow path of combustion air through the port to alter the amount of combustion air flowing into the port for mixing with fuel. Combustion air is increased by injecting air cocurrent with the combustion air flow to induce additional flow into the port. Combustion air is decreased by injecting air countercurrent to the flow to impede flow through the port.
458054
Borden Ladner Gervais Llp
Ppg Industries Ohio Inc.
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