Catalytic converters are exhaust emission control devices that convert toxic combustion by-products from internal combustion engines to less toxic substances. This is done by catalyzing chemical reactions. These reactions occur when a particular combination of catalytic ingredients, often one or two, is introduced into the engine. HETAC (High Efficiency Transifier), a catalytic device for heavy duty engines, is the most widely used. There are many parts to a catalytic device, including the housing, catalytic connector assembly, catalyst cleaning chamber, and the catalyst.
Both active and passive catalysts have their strengths and weaknesses. For active catalytic converters to activate the reaction, they need a sparkplug and an active component. This makes them more susceptible to “timesoftening”, a gradual deterioration in performance caused over time by constant triggering. Passive catalytic convertors, such those found in gasoline engines, don’t require a spark plug, and they don’t degrade over the years.
Catalytic conversions must meet emissions standards set by state and national jurisdictions. This means that you, as a car buyer, must be aware of what type of catalytic converter you are considering for your vehicle. It is a good choice to buy a converter approved by the EPA to ensure maximum protection and to choose a cost-effective one that meets all your needs. This information is important to know before you buy your converter.
Catalytic convertors are used to reduce the levels of nitrogen oxides (hydrocarbons) and carbon dioxide in your vehicle’s exhaust. These gases have the effect of inactivating catalysts, which can lead to premature dissipation. Ozone gas, for instance, is highly reactive with nitrogen oxides and quickly dissolves into the exhaust stream. Carbon dioxide is likewise highly reactive and quickly combines with oxygen in the exhaust stream to form carbon monoxide, a highly toxic gas that can be deadly without proper ventilation.
Catalytic converters are made to work with platinum, palladium outlet tubes and inlet tubes. For your catalytic converters to work properly, both platinum or palladium must be in pristine condition. Platinum and palladium are delicate metals that are very difficult to obtain in their pure form. They are also very costly and can often be difficult to recover from fabrication. Most catalytic converters are made from steel mesh, which can be used as a substitute for platinum and palladium.
You will see that catalytic converters are located under an automobile’s hood. The converter assembly is made up of a metal sleeves that connect to the engine’s exhaust manifold. The sleeve is made of steel strands wrapped around a mandrel. This forms the back of the catalytic convertor. Combine metals such as aluminum and steel to create an alloy with high mechanical and electrical properties. The final product is an outer metal sleeve that connects the back of this sleeve with the rest of the converter. This entire assembly then links together to form a complete catalytic converter.
Diesel engines commonly use catalytic convertors to reduce carbon monoxide levels in the exhaust manifold. Catalytic converters utilize a two-step process: first, the catalyst is inlet; second, the catalyst is discharge. The catalyst must be inlet as well as discharge simultaneously to be effective. The catalyst’s inlet and discharge simultaneously creates metal oxides. Most catalyst inlet ports can be found near the muffler or the engine intake port. These ports release carbon monoxide into the air when an individual uses their vehicle.
Catalytic converters offer many benefits. They produce excellent exhaust gas and lower emissions and require very little maintenance. They also significantly reduce the noise pollution generated by most gasoline-powered vehicles. Many people prefer them over other options because they produce excellent exhaust gas, produce minimal emissions, and do not require tuning, maintenance, or rebuilding. Many converters are used in both diesel-powered cars and gasoline-powered cars.
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