A process for increasing the heating power of combustibles in thermic machines by the use of the smoke, gases and byproducts of combustion for previously heating the admitted atmospheric air

摘要

196,628. Paiva, F. X. de. April 22, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Air supply for combustion. - The invention appears to consist in means for utilizing the heat of the waste products of combustion from stoves, &c. for heating the air supply for combustion. The air for combustion is passed through tubular apparatus exposed to the heat of the combustion products and delivered beneath the grate.