Valves Used In Engines

By: Paul K James


Stock valve materials have been upgraded to a long lasting alloy of aluminum and steel. An engine constructer must be able to choose wisely on which valves for maximum performance on their engines. Unless one is careful in there observation, one alloy is similar to the other with the exception of steel valve that have black nitride coating or coated titanium valves. The difference between these two is the material used for coating but not the alloy used in the making.

Exhaust valves are made of steel that have higher heat requirements and resistance. The most commonly used materials for exhaust valves are austenitic, which are made of stainless steel alloys like the 21-2N and 21-4N. Even though the austenitic stainless steel has the capability of handling high temperatures, it is still softer than the martens tic steel, hence cannot be toughened by heat-treating.

One can improve wear of the exhaust pipe by welding a hardened wafer tip to the tip of the valve stem. The only problem with such a practice is that two-piece valve does not cool compared to a single piece valve; this is because the heat movement up the stem is not fast.

Cam Followers are in five different categories: Needle Roller Cam Followers; Caged Roller Followers; RBC Rollerô Long Life Cam Followers; Material Handling Rollers and Sheaves; and Airframe Track Rollers and Needle Bearings. For example, Needle Roller Cam Followers presents high forceful and balanced load. It also has the capability of carrying, anti-friction performance, which is in a compact design. Their usage comes in diverse ways, such as track rollers, cam followers, and in linear motion systems that comes in broad varieties.

The stainless steel valve is mostly made of stainless steel. Its purpose is to control the flow of gases and liquids, just to mention a few, by controlling their movements on the passageways. The stainless steel valves come manufactured in different types, such as ball valve, check valve, plug valve, needle valve just to mention a few.

Worn out valve guides can cause a car to smoke during start up, due to leaks, which gather on the engine cylinders when the car is at rest. There is no cause of alarm, as long as the spark plugs of your car have not had an effect on them. However, continuous smoking is a bad sign, so you should take your car for to a qualified mechanic for repair.

Just as the name suggests, an intake valve is a valve that allows air and fluid to pass through and in to the intake stage during operation of an engine. An intake valve is also known as an internal combustion engine, in todayís automobile engines. It compresses air and fuel mixture into the engines cylinders in their correct amount.

If the opening and closing of valves is not appropriate, the engine generates reduced power, thus slowing down the vehicle. In addition, damage can occur to the carís engine which may cause the fuel consumption to go up.

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Paul James is a contributor author of supertechperformance, One of the best valve manufacture Company. He writes articles on black nitride and related subjects.

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