![]() If you breathe them in, they damage the lung tissue, which in the worst case can lead to cancer. And then they become the so-called “ free radicals“, which oxidise everything they come into contact with. are the so-called “nitrogen oxides”, which are combined to form the NOx group.īut because nitrogen is so inert, it quickly loses the attached oxygen atoms. Unfortunately, this gas, which is in itself very inert and non-flammable, combines under the extreme conditions in the combustion chambers of an engine to form various molecules: NO, NO2, NO3 etc. A whopping 70% of the ambient air is nitrogen. Most of the air we breathe is actually nitrogen. However, nitrogen oxides are always produced when something is burnt with atmospheric oxygen. The main culprit is created incidentally during combustion in the engine: the so-called nitrogen oxides are identified as the main cause of air pollution. But it is not carbon monoxide, carbon dioxide or soot particles that cause the biggest problem. Intake manifold – Discount 24h free shipping to the shop ⇒Įxcursus: Nitrogen oxides from exhaust gases Pollutants are produced when fuels such as petrol, diesel or natural gas are burned. – Swirl dampers with control: They swirl the air additionally. There are some additional components in the intake manifold: – Heating element: This is used to preheat the intake air. Depending on the number of cylinders, four or six pipes are combined into an intake manifold. Structure of an intake manifoldĪn intake manifold consists of a solid tubular casting made of aluminium or grey cast iron. But when the complexity of the technology goes up, so does the risk of defects. Engines today are supplied with air via intake manifolds ( another term is “intake plenum”). ![]() The main reason for this increase in complexity is modern engine management with exhaust gas aftertreatment. In the case of a defective intake manifold, this can become noticeable primarily through loss of performance, heavy contamination, and oil leakage. ![]() Where once an intake pipe with air filter was sufficient, today a complex assembly with a multitude of components is used. Today, supplying an engine with air has become a real science. ![]()
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