-
When it comes to today's automobile market, it is called a fire, and the main reason for the fire is probably the price reduction. In the uproar of price reduction, the car dream of countless families seems to be getting closer and closer. However, there are also headaches, gasoline prices have continued to rise, oil prices have hit record highs, and the problem of fuel consumption has become one of the top considerations for consumers today.
In view of the increasingly serious fuel consumption problem in China, Professor Gong Jinke, director of the China Internal Combustion Engine Society, pointed out that China should end the history of only gasoline cars and vigorously develop diesel cars with good fuel economy.
The development of diesel cars in our country is an inevitable trend, and the development of some diesel vehicles on the basis of gasoline vehicles can fully reflect the advantages of gasoline vehicles and diesel vehicles, and at the same time, it can also make full use of the proportion of gasoline and diesel energy structure in our country. Diesel vehicles are more fuel-efficient than gasoline vehicles, which is determined by the technical characteristics of the engine. Because the compression-ignition diesel engine has a higher energy conversion than the ignition gasoline engine, the energy consumption is 45%-60% of the gasoline engine, and the diesel ** is lower than the gasoline**, the engine has less complex high-pressure ignition device than the gasoline engine, and the life is generally longer than the gasoline engine product, so the fuel economy of the diesel engine is better than that of the gasoline engine.
At the same time, diesel engines also have outstanding advantages over gasoline engines in terms of safety and environmental protection.
Diesel fuel is not volatile, has a high ignition point, and is not easy to be ignited or occur due to accidental circumstances**; The emission of carbon dioxide is also about 30%-35% lower than that of gasoline engines, and the exhaust emissions of diesel vehicles are better than those of gasoline vehicles.
In addition, the diesel engine is also very small in terms of power and gasoline engine, some performance parameters are even better than gasoline engine, for example, the low-speed torque of diesel engine is relatively large, which is reflected in the diesel car climbing ability is stronger than gasoline car, and the acceleration at low speed is faster than that of gasoline engine.
Based on the above technical characteristics of diesel vehicles, foreign countries are increasing the popularization of diesel cars, according to the data, European diesel cars have accounted for 32% of the annual production of cars, France, Spain and other countries are as high as more than 50%. Compared with the development of foreign diesel cars, the domestic car market is still dominated by gasoline vehicles.
In view of this situation, Professor Gong pointed out that the quality of diesel in China is the most important reason restricting the development of domestic diesel cars. At present, the diesel quality in most parts of the country simply cannot meet the requirements of the latest Euro III and IV emission standards for diesel engine technology, and the fuel with higher sulfur content will not only lead to the deterioration of the diesel vehicle emission system, but also shorten the engine life and increase the repair and maintenance costs.
In addition, most of the domestic consumers' awareness of modern diesel engines is still very low, and most people still stay in the 70s of the last century on the understanding that the black smoke is billowing and the noise is unbearable, and there will be great resistance to diesel cars. In response to this situation, Professor Gong pointed out that with the development of new diesel engine technology, diesel vehicles have made great progress in exhaust emissions and noise reduction.
-
Zotye flag Li Tongxia diesel cars are: Zotye T700, Zotye T600, Zotye T200, Zotye T300, Zotye T500, Zotye V10, Zotye V7, Zotye V5, Zotye S500, Zotye S350, Zotye S330, Zotye S320, Zotye S310, Zotye S300, Zotye S280, Zotye S260, Zotye S250, Zotye S230, Zotye S210, Zotye S200, Zotye S180, Zotye S150, Zotye S100, Zotye M300, Zotye M200, Zotye M100, Zotye M50, Zotye M30, Zotye M20, Zotye M10.
Traditionally, due to the different structures of gasoline engines and diesel engines, gasoline engines often belong to high-speed engines, which are faster in the long run, while diesel engines are low-rpm and high-torque engines, which are generally used for trucks, etc., but now each engine has developed greatly, so their respective advantages and disadvantages are not very obvious.
Gasoline cars are ignited by spark plugs, diesel cars are compression-ignited, gasoline cars are fast-accelerating, diesel cars are powered, in contrast, diesel cars are more fuel-efficient.
The speed characteristics of diesel engine and gasoline engine are different, and they have their own advantages and disadvantages in terms of power, diesel engine has good power and high torque at low speed, while gasoline engine has good power and high torque at high speed. >>>More
There are two ways to adjust the valve of a four-cylinder diesel car >>>More
Diesel vehicles are polluting to the environment. >>>More