What is the exhaust emissions of a car at least?

A car emits harmful exhaust gas every year, 3 times larger than its own weight, and the exhaust emission standard has become a hard indicator that must be met in the annual review of motor vehicles, so for the negative impact of automobile exhaust on the urban atmospheric environment, the improvement of automobile exhaust emission standards will be one of the most direct and effective means.

The domestic automobile exhaust emission standards are basically formulated with reference to European standards, and the national IV standards are implemented nationwide, which is equivalent to the European Euro V standard.

From the perspective of the development progress of European countries, the Euro VI standard has officially entered into force on December 31, 2012, while the China V standard, which is equivalent to the Euro VI standard, is still in the pilot state of some cities, and the progress of promotion is significantly behind that of Europe.

It's like asking the question of how many liters of oxygen is in the air, and it can only be said that there are many, many, many, many.

The questions you asked were not detailed enough and not very good, try to give the answers, I hope it will help you.

1. The emissions within the effective life mileage of a vehicle shall not exceed the following values according to the emission standards.

Take the car with the emission level of China 4 as an example: the emission of light-duty Minna vehicles is about the same, and the maximum value of each emission pollutant cannot exceed the following values:

co;nox：

There is no maximum limit for HC:CO2: about 185g km left wide locust shed right.

2. If 1 year is calculated by driving 10,000 kilometers per year, the emissions are as follows:

co;nox：

HC: CO2: 185g km * 15000km 100 = 27750g = low other emissions, can be considered carelessly.

The main pollutants emitted by automobile exhaust are carbon monoxide, hydrocarbons, nitrogen oxides, lead, etc.

According to statistics, every 1,000 cars emit about 3000kg of carbon monoxide, 200-400kg of hydrocarbons, and 50-150kg of nitrogen oxides per 1,000 cars per day; Car exhaust can be described as the "culprit" of air pollution.

The methods for dealing with automobile exhaust exceeding the standard are: 1. Three-way catalytic converter and oxygen sensor; If the exhaust gas of the car is not enough, the first thing that comes to mind should be the three-way catalyst and the front oxygen sensor, and if the engine mixture is not fully combusted, a large amount of carbon will be generated.

2. Clean or replace the spark plug; Spark plugs, high-pressure packs and other ignition system failures will also cause car emissions to exceed the standard, spark plugs are wearing parts, the most prone to problems, poor working conditions of spark plugs will cause emission pollution to aggravate.

3. Deep cleaning of the engine; On the premise that there is no fault in the air flow meter, temperature sensor and other sensors, it is necessary to do a major maintenance of the engine to clean the carbon deposit.

Car exhaust can be described as the "culprit" of air pollution. According to the calculation of Tongbi Duan, every 1,000 cars emit about 3000kg of carbon monoxide, 200-400kg of hydrocarbons, and 50-150kg of nitrogen oxides per day; In Los Angeles, 90% of the total air pollutants are emitted by mobile sources such as cars.

Car exhaust can be described as the "culprit" of air pollution. According to statistics, every 1,000 cars emit about 3000kg of carbon monoxide, 200-400kg of hydrocarbons, and 50-150kg of nitrogen oxides per 1,000 cars per day; In Los Angeles, 90% of the total air pollutants are emitted by mobile sources such as cars.

Cars

China's latest national standard "Terms and Definitions of Automobile and Trailer Types" has the following definition of automobiles: non-track vehicles driven by power and with 4 or more wheels, mainly used for: carrying people and goods; towing vehicles carrying people and goods; Special Purpose.

From July 1, 2018, China reduced import tariffs on complete vehicles and parts. In 1879, the first successful test of a two-stroke experimental engine was successful. In October 1883, he founded the "Benz Company and the Rheinland Gas Engine Plant".

In 1885, he built the first Benz patented motor car in Mannheim, a three-wheeled car with a two-stroke, single-cylinder gasoline engine that had some of the basic features of a modern automobile.

Such as spark ignition, water-cooled circulation, steel tube frame, leaf spring suspension, rear-wheel drive, front-wheel steering, and brake handlebars, etc. On January 29, 1886, the German engineer Karl Benz applied for a patent for his motorized scale.