Engine valve: what is it?

When starting our carwe are generally unaware of the multiple mechanical processes that take place for the motor works. These occur through the joint work of a myriad the rooms mobiles which operate synchronously. Engine valves are an essential part of the motorbecause without them it would not be possible to obtain energy needed to start a vehicle.

Where are the valves located in the engine?

The valves are located in the cylinder head (commonly called the cylinder). Their wide part (valve head) rests on the cover and fits perfectly to ensure thesealing of the cylinder. The lower part, also called the rod, is located inside the cylinder, being limited to completing the movement opening and closing controlled by thetree at cams and the springs.

What are engine valves used for?

The valves are elements that have the simple function of closing and opening the intake and exhaust ducts of gaswho themselves ensure the combustion of the air-fuel mixture. They let in the fresh gases for combustion and expel the burnt gases to the outside.

What are engine valves made of?

They are manufactured, molded and machined in steels specials. What is sought is to resist the high temperatures reached by the gases in the operation of the valves. The differences of heat between the exhaust and the intake allow the use of alloys specials in the exhaust valves, which withstand 1000 degrees Celsius.

What are the advantages and disadvantages of valves?

In addition to being quite economical in their manufacture, the engine valves offer a small passage surface, thus presenting less friction and a suitable shape for the good flow of the exhaust gas.

The only downside to these valves is that they have little or no cooling.