pakojärjestelmä

A pakojärjestelmä, often translated as exhaust system or exhaust manifold, is a crucial component of internal combustion engines. Its primary function is to safely channel exhaust gases produced during combustion away from the engine and its occupants. This system is comprised of several parts, including the exhaust manifold, exhaust pipes, catalytic converter, muffler, and tailpipe.

The exhaust manifold collects hot exhaust gases from each cylinder of the engine and directs them into a single pipe. From there, the gases travel through the exhaust pipes, which can vary in size and configuration depending on the vehicle. A catalytic converter is a key part of the modern pakojärjestelmä, designed to reduce harmful emissions by converting toxic gases like carbon monoxide and nitrogen oxides into less harmful substances such as carbon dioxide and water vapor.

Following the catalytic converter, the exhaust gases pass through a muffler. The muffler's role is to reduce the noise produced by the engine's combustion process by absorbing or deflecting sound waves. Finally, the gases exit the vehicle through the tailpipe. The efficiency and design of the pakojärjestelmä significantly impact engine performance, fuel economy, and environmental emissions.