Can replacing an engine in a car improve CO2 emissions?

The landlord should be able to improve some. However, emissions from car engines are also closely related to fuel consumption. In order to meet higher emission standards, the factory must control fuel consumption.

Nowadays, the engine displacement of the production is required to reach Europe or Europe, and the exhaust emission CO2 (carbon dioxide) is proportional to the size of fuel consumption, in order to suppress CO2 emissions, it is necessary to control fuel consumption (gasoline and diesel are the same), so measuring CO2 can also be used as an indirect method of fuel consumption measurement. Therefore, the fuel consumption of vehicles with high emission standards must be low compared with cars of the same level, otherwise they will not meet the standard. At present, the car engine generally adopts a multi-point EFI fuel supply system, and the mixture composition and fuel injection are controlled by the computer, and the engine design theory has been very mature, so from the structural point of view, the difference in fuel consumption of the same displacement engine is not large, especially the low displacement engine.

Even with a 20% difference in engine fuel consumption, the maximum mileage for 100 km will not exceed 1 liter of gasoline. So, why do you feel that some cars are particularly fuel-efficient, and some cars are particularly fuel-efficient, which leads to questions such as drivetrain matching, car shape and tires.

It doesn't work, it's all a product of combustion.

Landlord, if you just take the exhaust emissions are not up to standard, you don't need to change the engine, wash the cylinder, or check the oxygen sensor. , it doesn't cost much! The procedure for changing the engine is quite troublesome, and you have to apply for it at the DMV!

Yes, you can just prepare a case during the car inspection

It depends on the specific problem Emissions are not all engine problems.

Yes, but it must be approved by the Vehicle Management Office.

Increasing the level of lubricating oil used in automobile engines usually refers to the use of oil products that are higher than the quality level specified by automobile manufacturers or engine manufacturers, such as specifying the use of APISF grade oil, which can use SG grade oil, specifying the use of CD grade oil, and using CF-4 grade oil. If you use an oil that is one grade higher than the specified quality level, it will bring certain benefits to improve the friction and wear of the engine, improve the oxidation resistance of the oil, and reduce the sediment and sludge of the engine. Therefore, the oil change interval and engine service life of some oil products will be appropriately extended.

However, it is not economically necessary to use an oil that is much higher than the specified quality grade.

Increasing the level of lubricating oil used, under normal circumstances, has little impact on vehicle exhaust emissions. If the engine lubrication condition is not good, the use of higher quality grade oil can reduce oil burning and blow-by, and can extend the life of the catalytic converter, which is beneficial to vehicle emissions.

It can increase the service life of the engine, but not the exhaust gas.

Every 1,000 cars emit about 3,000kg of carbon monoxide per day, and there are 18 million cars in China, you can calculate how terrifying it is.

Can I connect a device to the exhaust pipe? The exhaust pipe is pinched small by manpower to increase the exhaust speed, and then the wind turbine is installed and connected to the battery.

LG air purifier can decompose formaldehyde, benzene, TVOC and other toxic and harmful gases, remove smoke odor, peculiar smell, remove suspended particulate matter that can enter the lungs, purify comprehensively and thoroughly, 30 cubic meters of air pollutants can be quickly dissolved in 2 hours at most.

There are about 54,000,000 kg of carbon monoxide and growing.

The function of the exhaust gas recirculation system is to introduce a part of the exhaust waste into the combustion chamber for recombustion under medium and high loads, which is used to reduce the emissions of nitrogen oxides and carbon monoxide and make the vehicle exhaust emissions meet the standard.

Exhaust gas recirculation has little effect on engine performance, but is beneficial to improving emission indicators.

It is more environmentally friendly, and the exhaust gas of the intake crankcase is burned again, otherwise it will be completely discharged into the atmosphere.

Some vehicle exhaust gas recirculation is to reduce exhaust pollution in order to meet emission standards.

Hello can reduce pollution and meet emission standards. Clear, thank you.

Hello, it is possible to reduce the pollution index.

Exhaust gas recirculation means that the engine is inhaling second-hand smoke! Affects lifespan.

The exhaust of the car only goes through the preliminary treatment, the most common is the three-way catalytic device, which can only achieve low emissions, can not do harmless emissions, and the exhaust gas is harmful to people and the environment, but the treated exhaust is a little less harmful.

Totally wrong! The exhaust pipe has a huge impact on engine performance, and I agree that a little bit of a race can make a championship.

1. 1. Why does inline reduce the low-speed torque of the engine?

The flow rate of the exhaust is close to the speed of sound, and the use of straight exhaust at high speed first reduces the exhaust resistance; Moreover, according to the inertia of the fluid, it will be conducive to air intake, and the design of ordinary cars should consider the comprehensiveness of high speed and low speed, only the racing car does not need to consider the low-speed state, so the racing car is all straight row;

2. Will the overall pressure inside the engine be different by the different exhaust forms? Why does a small amount of pressure in the exhaust pipe affect engine torque? According to common sense, when the engine exhaust gas is discharged, the pressure in the cylinder is close to 0 or equal to 0, if there is a trace of pressure, what parameters will affect the engine?

Yes, the pressure in the cylinder will be different in different exhaust forms, you have to remember that it is a moving part, 3. Why does the inline row increase fuel consumption? (I learned that there will be a trace of mixed fuel leakage in the in-line discharge, why does it leak?) Shouldn't the valve be completely closed when exhausting and intake? Why is it leaking? ）

There are valve advance angles and overlap angles.

2. Will the automobile engine be designed with backup power and torque according to the performance and weight of the vehicle when it leaves the factory?

The general car is not, three, the specific performance and impact of the back pressure drum?

4. What are the specific properties and effects of M and S drums?

5. Other exhaust forms?

Exhaust gas turbocharging.

We generally divide the exhaust pipe into a cold end and a hot end.

The hot end is the catalytic converter tube, which contains a carrier to catalytically convert the HC, NOX, CO and other components in the exhaust gas of the engine into H2O and CO2 to avoid excessive emissions.

In some cases, for layout or emission control reasons, the exhaust pipe will also have two catalytic converter packages, which will have a similar effect.

The cold end is the exhaust pipe in the broad sense, with the inlet connecting to the hot end in the engine compartment and the outlet at the rear of the vehicle.

The function of the cold end of the exhaust pipe is to dampen and absorb the shock, through the volume of the muffler package, the high-frequency tube, the partition, the glass fiber, and the exhaust pipe lifting lug and other structures to reduce noise and shock to avoid the exhaust noise of the engine, radiation noise to the driver, or to give the car change party who can't buy a supercar a chance to kill the neighbors, let them cut the muffler, let the exhaust pipe noise.

The length of the exhaust pipe is a factor that affects the noise and function of the entire exhaust system, but the impact may not be as great as that of a silencer.

The first is the influence of exhaust back pressure, the longer the length of the exhaust pipe, the more the exhaust is filled with the pipeline, the greater the flow loss of the pipeline, and the greater the exhaust back pressure. But no matter how big the impact is, it can't be the impact of the exhaust pipe muffler.

However, there may also be some hazards in cutting the exhaust pipe, which may affect the back pressure of the engine calibrated according to the operating conditions. Affect the normal operation of the engine.

At the same time, any change in the volume of the exhaust muffler and exhaust pipe will also have an impact on noise and back pressure.

Abnormal noises, cannon firing and other sounds will be produced with these changes.