Are diesel vehicles obsolete? Are you more optimistic about diesel car PK petrol?
It is widely accepted as the industry leader to protect and deter general attack from all types and conditions of intrusion. Palisade fence is constructed using a post, rail and paling system. The security level of the fence can be increased by increasing the height of the fence, adding the pale numbers of each panel or increasing the thickness of the pale. The pales are made from hot formed and cold rolled steel belt,These belt offer both strength and rigidity combined with a long life span.
Palisade Fence,Steel Palisade Fencing,Palisade Fencing Machine,Palisade Fence Panels Hebei Qianye Metal Product Co., Ltd. , https://www.qymsteelfence.com
It is said that diesel cars are good. Many people still stay in the past. In the past, when they talked about diesel cars, people would equate these words: noise, oil, black smoke, heavy and heavy... Like a tractor, the sound is loud and black, so in most In the eyes of the people, the diesel engine on the family car is a very low choice.
However, in North America and Europe, diesel is actually the first choice for environmental protection and energy saving. However, the use of diesel in China is still very large. A large part of industrial and agricultural oil is diesel, but it has not become the mainstream of the family car market.
PK for two engines:
After the mixed gas ignited gasoline <br> <br> machine, the moment of combustion, and a burst of energy, within a certain time cycle can be repeated with more work cycles to achieve high power output, small size and therefore With lighter weight, higher performance and faster response times are possible, and a wide range of speeds can also provide a better sense of control. However, the compression ratio of a gasoline engine is often only half that of a diesel engine. When a power stroke is performed, the temperature and pressure inside the cylinder are much lower than those of a diesel engine. Therefore, the thermal efficiency is relatively low, which is commonly referred to as “oil consumptionâ€. There are also high speed gasoline engine, generally up to 7000 rev / min, easy to start, low noise, but many auxiliary electrical equipment, maintenance is more complex. 
<br> <br> diesel fuel injected into the combustion takes time, so it is suitable for combustion of the fuel to bring about the low speed high torque, and in order to fight against the cylinder pressure and torque, the cylinder and the piston of the diesel engine Connecting rods and other components are stronger than gasoline engines, so they are more bulky than gasoline engines. We know that gasoline is easier to evaporate than diesel, so the ignition point of diesel is lower than that of gasoline. Using this feature, diesel engines use high-pressure injectors to directly inject diesel into the cylinder for atomization, and then they are naturally compressed after reaching the detonation point. Spark plugs. Therefore, the structure is simple, the reliability is high, the fuel consumption is low, and the fuel economy is good. Usually, gasoline engines are used in cars and cars, and large vehicles such as buses and trucks are used. Modern advanced diesel engines are more environmentally friendly, but their disadvantages are low rotational speed (4000 rpm to 5,000 rpm) and high noise (has been well resolved in small, high-speed diesel engines for cars). The use of inferior diesel or easy maintenance of black smoke . 
Why are diesel vehicles not popular in China ?
1. At present, compared to Japan and Germany, the gap between China's manufacturing of diesel engines is still very large. Although some people may say that they can introduce technology through joint ventures, they are now introducing technology into China, and domestic diesel quality is also It is not possible to meet the European diesel standard 2 and the national policy restrictions within a short time. In some places, individual passengers who buy diesel are not given the license. 3. Diesel is an important national economic material of the country. Use too much, use too much, and use more on large machines. The diesel used for passenger cars is not sufficient.
Finally, diesel vehicles are better than petrol cars or diesel vehicles because diesel engines have better thermal efficiency and economy. They ignite and burn themselves through diesel spray and air mixing, and do not require an ignition system. At the same time, diesel engines provide fuel. The system is also relatively simple and the failure rate is relatively small. In the case of the same power, the diesel engine has a large torque, and the rotational speed at the maximum power is low. Nowadays, the relatively mature technology of small-sized diesel engines has made the existing diesel engine's shortcomings better solved. Moreover, the advantages of diesel engines in terms of energy-saving and CO2 emission cannot be replaced by gasoline engines.
