abgaskanal

Abgaskanal is a term used to describe a passage that channels exhaust gases away from a combustion chamber to the exhaust system. In engines and turbines, it is the channel through which hot, high‑pressure combustion gases travel after leaving the combustion chamber. The term is commonly used in German-language engineering, but is understood in international contexts as exhaust channel, exhaust port, or exhaust duct.

In internal combustion engines, the abgaskanal is typically formed by the exhaust valve, the exhaust port in the cylinder head, and the exhaust manifold or turbine housing. Each cylinder commonly has its own dedicated port, and the shape, length, and cross‑sectional area of the channel influence exhaust gas flow, backpressure, and engine breathing. Design choices affect torque, power, and emissions. Modern engines may couple the abgaskanal to turbochargers or camshaft timing, and may employ variable geometry or close‑spaced runners to optimize scavenging at different RPM.

In industrial and building engineering, the term may refer to a wider exhaust duct or flue that carries combustion products or process gases to a stack. Such abgaskanäle must withstand high temperatures, resist corrosion from exhaust constituents, and be integrated with silencers, dampers, and emission controls. Materials often include cast iron, steel, or corrosion‑resistant alloys, with insulation and fire‑rated construction as required.

Maintenance issues include heat‑induced distortion, leaks at joints, soot buildup, and corrosion, which can increase backpressure or reduce efficiency. Proper design and installation, including appropriate gaskets and seals, are essential for safety and performance.