Why many cars today are designed with virtual exhaust outlets

The other is to set up valves in several sections of the extra exhaust. When the load is driven at low speeds, the exhaust is exhausted through half of the exhaust line. When driving at high loads and high speeds, the valve opens and allows the exhaust to be exhausted through all exhaust pipes for more power.

Basically, most commercially available models with a valve exhaust use this method.

The addition of intelligent valves is undoubtedly the best solution to solve the different exhaust needs under different working conditions, but the valve needs to have a controller and a control computer, and at the same time, the ECU and other parts must be calibrated accordingly, which is undoubtedly more expensive to build, and even increases the failure rate. Therefore, it can only be installed on some high-end sports models.

Conclusion: Whether the power is strong or not can be distinguished by just looking at the exhaust pipe.

Here are some tips about exhaust pipes. In fact, the layout of the exhaust pipes is determined more by the positioning of the model. For example, most family cars will use a small diameter exhaust commonly known as "small water pipes" to ensure that urban driving is easier; Some performance cars will use more exhaust to take into account the medium and high rev output; Some large-displacement models will use a very thick exhaust diameter, after all, the lung capacity is there; Some racing cars, on the other hand, only require high-revving power, and even use a full-thru exhaust with no low-revving torque.

In order to make the car more "sporty", some car brands even install some decorative glue on the exhaust pipeEven plastic trim is used directly to create this "sporty" feeling. <>

The purpose of the exhaust pipe is very simple: since the internal combustion engine needs to be burned with fuel, it naturally produces exhaust gases and non-combustible particles. These exhaust gases and particles are non-flammable, so it is necessary to drain the cylinders and then burn the fuel in the cylinders to continuously generate electricity.

The role of the exhaust pipe is to produce this waste. From the four runs of the engine, the "suction of **" comes into play, it can be known that during the exhaust stroke, the engine piston pushes the exhaust out of the exhaust valve, then closes the exhaust valve to open the intake valve, and uses the negative pressure generated when the piston falls. The pressure difference, together with the positive pressure created by the atmospheric pressure, causes fresh air to be "sucked" into the cylinder.

The most straightforward way to improve exhaust efficiency is to make the exhaust pipe thicker. This results in smoother exhaust, more efficient exhausting, and more readily available power. However, there was a problem with the thicker exhaust pipe, which resulted in a severe lack of low spin. <>

Turbochargers with variable turbine nozzle outlet sections are used in turbocharged engines of heavy-duty vehicles and are called variable-geometry turbochargers. In the turbocharger, the boost pressure is adjusted by changing the area of the outlet cross-section of the nozzle. When the engine is running at low speed, reduce the cross-sectional area of the nozzle outlet, increase the exhaust volume of the nozzle outlet, increase the turbine speed, and increase the boost pressure and volume air supply.

When the engine is running at high speeds, increase the speed. The cross-sectional area of the nozzle outlet reduces the exhaust flow at the nozzle outlet and the turbine speed is relatively reduced, so that the supercharger does not overspeed and the boost pressure is not too high. In a vane flow turbine, the outlet section of the nozzle can be changed by rotating the blades of the nozzle.

The blades of the nozzle are connected to the gear, and the gear engages with the ring gear. When the actuator moves alternately, the ring gear rotates to the left or right, causing the ring gear to engage with it and causing the blades of the nozzle to rotate with it, so that the cross-section of the nozzle spray pipe outlet has changed.

Virtual exhaust outlets reduce space and are more conducive to exhausting.

The exhaust is convenient, so it saves fuel and has strong power.

Saves space, saves fuel and facilitates exhaust.

This is better for exhaust and saves fuel.

The use of virtual exhaust vents can reduce space and make it more aesthetically pleasing.

The use of simulated exhaust ports can save fuel.

The more windpipes, the thicker the exhaust pipes, and the noisier the exhaust pipes, which means more power.

Less space and easier venting.

Doing so can improve fuel efficiency.

Whether the power is strong or not can be distinguished by just looking at the exhaust pipe.

The role of the exhaust pipe is simple, because the internal combustion engine needs to be burned using fuel, which naturally produces non-flammable exhaust gases and particles. These gases and particles are non-flammable, so they need to be discharged from the cylinder and then put into the cylinder for combustion so that they can continue to generate power. And the function of the exhaust pipe is to get this waste out.

Power from the engine four-stroke"Suction blasting row"It can be known that when the exhaust stroke, the piston will push out the exhaust valve, and then close the exhaust valve to open the intake valve, and the negative pressure generated by the atmospheric pressure will be fresh air together with the positive pressure generated by using the pressure difference between the piston and the downward pressure of the piston"Suction"Intake cylinder.

<> exhaust efficiency will affect the power output of the engine. The lower the exhaust efficiency, the more difficult it is for the exhaust gases stored in the cylinder to be discharged through the valve. The greater the uplink resistance of the piston, the slower the uplink speed, the slower the rate of increase, and the less horsepower will increase.

Even in turbocharged engines, although positive pressure can improve the charging efficiency of the engine in disguise by forced air intake, the exhaust gas needs to drive the exhaust gas turbine, and the resistance is larger, so the exhaust gas efficiency is relatively limited, which is the same as the exhaust gas efficiency of the naturally aspirated engine.

<> exhaust efficiency will affect the power output of the engine. The lower the exhaust efficiency, the more difficult it is for the exhaust gases stored in the cylinder to be discharged through the valve. The greater the upward resistance of the piston, the slower the ascent, and the slower the ascent, the less horsepower will rise.

Even in turbocharged engines, although positive pressure can improve the charging efficiency of the engine in disguise by forced air intake, the exhaust gases need to drive the exhaust gas turbine, and the resistance is large, so the efficiency of the exhaust gases is relatively limited, which is the same as in the case of naturally aspirated engines.

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Because this can make the appearance of the car look better, and at the same time, it can also allow the oil in the cylinder to be fully burned, which can exhaust all the waste, and then can also improve the efficiency of the exhaust.

Because the virtual exhaust port design will not affect the kinetic energy of the car, it looks more beautiful, and the exhaust efficiency will not be limited, so many cars will use the virtual exhaust port design.

Because in this way, the noise reduction effect can be achieved, and the internal combustion engine can be pushed to fully burn the fuel, which will give people a sense of movement, so that the exhaust gases and particles that are not burned can be discharged through the cylinder.

Because now people think that the virtual exhaust is better, much better than the average one.

Probably because the design of the virtual exhaust port can increase the aesthetics of the car.

Because the use of virtual exhaust outlets will make the car look more beautiful as a whole, giving people a very domineering feeling.

Because the design of the virtual disk import can make the car look more beautiful as a whole.

Virtual exhaust outlets reduce space and are more conducive to exhausting.

Maybe I want to show off the current high-end technology, but it doesn't really mean anything.

First of all, for the sake of aesthetics, you can flexibly match various bumper shapes to enhance the sense of class. Because the temperature of the exhaust gas in the exhaust pipe is high, it can protect the car owner from being burned by the high temperature when opening the trunk of the car or passing pedestrians too close, which is a safe design concept.

Because it will make the car look more aesthetically pleasing. And the exhaust port is more efficient.

Because such a design is very good-looking, it is a trend.

I think it might be more suitable for the car's exhaust system, which is convenient and fast.