Why is the intake valve bigger than the exhaust valve?


Release time:

2024-09-20

The inlet door must be larger than the exhaust valve. First of all, we must know that the intake air is sucked in by vacuum, while the exhaust is pushed out by squeezing.

The inlet door must be larger than the exhaust valve. First of all, we must know that the intake air is sucked in by vacuum, while the exhaust is pushed out by squeezing.

Secondly, in order to get more fresh air inside the engine, thereby improving the power performance of the vehicle, more intake air is naturally needed, so the intake valve undoubtedly needs to be made larger, and the exhaust valve does not have this demand.

The effect of the cylinder is to professionally introduce gas into the automobile engine and remove the organic waste gas after incineration. From the engine structure, it is divided into intake valve and exhaust valve.

The effect of the intake valve is to suck the gas into the car engine and stir and ignite it with the oil; the effect of the exhaust valve is to discharge the ignited flue gas and heat it.

The size regulations of the intake and exhaust valves are all based on the air intake and displacement of the car engine. Then, if the valve is too small, it will cause the efficiency of the car engine to be reduced to a certain extent, and even cause the cylinder to burn.

The natural gap is too large is not allowed, otherwise it will not only aggravate the damage of the parts, and the condition of the intake and exhaust pipes of the cylinder is all harmful, so everyone must adjust according to the specification information.

To put it bluntly, the valve refers to the gap between the end of the cylinder rod and the transmission equipment (or straight moving bearing and tappet) when the cylinder is completely turned off in the hot state of the diesel engine.

This is specifically due to the fact that when the car engine is running, the parts stretch due to thermal expansion. If the cylinder is not so much in the middle of the transmission equipment,

If the gap is not embedded in the hot state, the cylinder and the transmission equipment will expand and open the cylinder in the hot state, destroying the sealing between the cylinder and the cylinder seat, causing the cylinder to leak steam, and reducing the engine displacement. It is difficult to start, and even cannot work normally. Therefore, when installing an automobile engine, it is necessary to embed an appropriate gap, namely the valve, between the cylinder and the transmission equipment.

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