Exhaust gas feed pipe for after:burning equipment - has additional volume of air introduced in upstream part of gas pipe

摘要

After-bruning equipment as in 2533648.5 where an exhaust gas feed pipe transfers the exhaust gas to be after-burned into a ring injector from a chamber which is in heat exchange to the downstream vibration reflection wall of the combustion chamber. Secondary air is mixed with the gas at the ring injector. Specifically an additional volume of air is introduced in the upstream part of the exhaust gas feed pipe. There is an ignition element in the chamber in the mixing chamber of the ring injector between the outlet opening of the feed pipe and the transfer into the mixing chamber. This additional air volume comes into the feed pipe from a secondary air pre-heater chamber which is completely within the feed pipe and around which the exhaust gas flows.