Six stroke engine, how does it work?

I've never heard of a six-stroke that survives a four-stroke six-cylinder.

Depend on! The six-stroke engines are out, what model is it, please tell me!

1.Intake stroke In this stroke, the intake valve is opened, the exhaust valve is closed, the cylinder communicates with the carburetor, the piston moves from the top dead center to the downward karma point, the volume above the piston increases, and a certain vacuum degree is generated in the cylinder. The combustible mixture is sucked into the cylinder.

When the piston reaches the bottom dead center, the crankshaft turns half a circle, the intake valve closes, and the intake stroke ends.

2.Compression stroke After the intake stroke is completed, the intake and exhaust valves are closed at the same time. The crankshaft continues to rotate, the piston moves from the bottom dead center to the top dead center, the volume above the piston decreases, and the mixture entering the cylinder is gradually compressed, increasing its temperature and pressure.

When the piston reaches the top dead center, the compression stroke ends.

3.Power stroke Towards the end of the compression stroke, the spark plug emits an electric spark that ignites the combustible mixture. Due to the rapid combustion and expansion of the mixture, the pressure can reach 3 5 MPa in a very short time, and the maximum temperature is about 2200 2800 K.

The high-temperature, high-pressure gas pushes the piston down rapidly, and rotates the crankshaft through the connecting rod to work externally.

4.Exhaust stroke After the mixture is burned, it becomes exhaust gas, in order to facilitate the next working cycle, these exhaust gases should be discharged from the cylinder in time, so at the end of the work stroke, the exhaust valve is opened, the piston moves up, and the exhaust gas is discharged into the atmosphere. When the piston reaches the top dead center, the exhaust valve closes and the crankshaft turns to two weeks, completing a working cycle.

The basic working principle of the engine is to convert thermal energy into kinetic energy:

1. First of all, under the action of external force (driven by the starter), the piston is driven by the crankshaft to reciprocate.

2. When the piston moves from the top dead center to the bottom dead center, the intake valve opens and begins to realize the air intake (the gasoline car enters the mixture, and the diesel engine enters the pure air).

3. When the piston moves from the bottom dead center to the top dead center, the intake and exhaust valves close the skin leakage, compress the intake air just now, and produce high temperature --- compression.

4. At the end of compression, the mixed gas of the gasoline vehicle is ignited and burned under the action of the spark plug, and the high-temperature gas of the diesel vehicle is injected under the action of the injector and burns by itself, and the gas in the cylinder expands sharply under the action of combustion, which promotes the piston to work --- downward.

5. When the piston moves from the bottom dead center to the top dead center, the exhaust valve is opened for exhaust and the next cycle is prepared.

Four-stroke Four-stroke means that the complete movement of the piston in the engine requires four processes at a time Inhalation (at this time the valve is open, if it is four valves, open two) Compression (at this time all the valves are closed, and the piston moves from bottom to top to compress the gasoline and air mixture sucked in).

Work (when the volume of the gas mixture is compressed to a minimum, the spark plug ignites, which is deflagration, and the piston at the very top is pushed to the lowest end to drive the crankshaft).

Exhaust (open the remaining valve and exhaust the exhaust gas out of the cylinder block) Note: The above processes are gasoline engines.

Two-stroke two-stroke.

Two-stroke engines and four-stroke engines complete a work cycle, and their intake, exhaust valves, or intake, exhaust, and scavenging ports are only opened and closed once, but the time period for opening and closing is different. For every revolution of the crankshaft of a two-stroke engine, there is a power stroke. Therefore, under the same conditions such as speed and air intake conditions, theoretically speaking, the power produced by a two-stroke engine should be equal to twice the power produced by a four-stroke engine with the same working volume.

However, because the exhaust exhaust of the two-stroke engine is not complete, and at the same time, because the scavenger closes before the exhaust port and produces additional exhaust, in practice, the two-stroke engine is not equal to the four-stroke engine, but doubles.