Q:Why do diesel engines vibrate with noise?

We also know that in the gasoline engine, knock is fault phenomenon. To produce motion power and engine piston in the opposite direction is called detonation combustion of combustible gas, not only bad detonation engine damage, increased fuel consumption, and will have a lot of noise. In the EFI gasoline engine, with a knock sensor, through the critical point ECU ignition timing control for engine knock and knock out. And in the diesel engine, the fuel itself is by compression ignition, the gasoline engine and compression ignition detonation conditions when the same, so inevitably will produce a lot of noise.x0d in addition to the combustion of different causes more than noise. The other mechanism of diesel engine will produce more noise, such as the fuel pump of diesel engine. Unlike gasoline engine, the compression stroke when the gasoline engine is A mixture of oil and gas compression, while the diesel engine is a compression of pure air. Because, in order to make the diesel in cylinder combustion more fully, and will not cause unnecessary knock, the diesel engine is a piston in nearly reach the start vertex of the injection compression. You want to in such a high pressure environment, must choke a very large supply pressure to ensure the normal operation of the engine.

Q:Is China really a country that doesn't build an engine?

At present only made a very top engine, to reach the ideal state. But now it has touched the threshold, look at it, not a few years, will advance in this field, developed the top of the engine, and then there is no known Troll what happened, they can wash sleep.

Q:What is the way the engine is lubricated?

(3) regular lubrication: for some less important, scattered parts, the use of regular filling grease lubrication, such as engine water pump bearings, generators, starters and distributors and other components of the lubrication, that use this

Q:What is the new Toyota Reizhi 2.5v engine compression ratio?

(KW / l): 56.8 Fuel: No. 93 Gasoline (Beijing No. 92) Oil supply method: EFI cylinder head Material: Aluminum alloy Cylinder material: Aluminum alloy Bore (mm): Stroke (mm): Emission standard:

Q:Is the car's engine arranged in L or V?

In addition, as the piston crankshaft moves in the left and right, the vibration is counteracted each other, thereby achieving low noise and low fuel consumption. There are horizontally opposed 4 cylinders and 6 cylinders at present

Q:Engine arrangement...

4. lie, also called horizontal opposition. The cylinders are also divided into two groups, but are mounted on the same crankshaft at an angle of 180 degrees. The utility model has the advantages that the height of the engine cabin can be lowered, and the vibration of the machine can be effectively avoided. More common in sports cars, such as Japan's Fuji and Germany's Bao jie.

Q:What are the advantages of Audi's TFSI engine?

There is a time difference between the motivation and the greater motivation, and this time is not short.

Q:What are the power performance indicators of the engine?

3, crankshaft speed: refers to the engine crankshaft revolutions per minute, usually expressed in N, unit r/min. The main indexes of engine performance are speed, power, torque, fuel consumption and so on. These indicators are usually marked in the instructions of the car or engine. In addition, there are some relative indicators, such as power up, lift torque, lift mass, specific mass, and so on, which can be compared among different engines.

Q:Does the gasoline engine use diesel oil?

Can not. Two specific differences: 1, first of all, the compression ratio of the diesel engine gasoline engine is more than 2 times, the main parts under high temperature and high pressure, the impact is much larger than the gasoline engine, thus making some parts of different materials;

Q:The earliest engine

Now introduce a car engine: variable valve timing technology, double overhead camshaft technology, in-cylinder direct injection technology, VCM cylinder management technology, turbocharging technology, and so have been widely used;