Can the automobile engine drive the ducted fan? The so-called conduit is the passage through which the air passing through the engine flows in and out.
Turboprop engines, turbofan engines, jet engines and ramjet engines are essentially ducted engines.
They all apply a principle, that is, to accelerate the outflow speed of air flow in the duct in order to obtain greater reverse thrust.
The structure of all ducted engines can be simplified as two airflow channels, an outer duct and an inner duct.
The inner duct is the middle part (including the inner shaft) of the turbofan engine. The airflow is compressed in this duct, and then it is mixed with fuel for deflagration and backward injection, so the thrust generated by the inner duct is a kind of injection force.
The external duct is an air flow channel outside the turbofan engine, which can be inside or outside the engine casing. The airflow passes through the outer duct after being incited by the first blade, and the thrust generated by the outer duct is the direct propeller force.
In the jet engine, the size of the outer duct is 0, and all the air flows through the inner duct, which is ejected after compression and deflagration, and the thrust generated is all jet force, and the air flow ratio of the outer/inner duct is infinitely small; (ideal state)
In the turboprop engine, the size of the inner duct is 0, and all air flows are pushed backwards through the propeller of the outer duct, and the thrust generated is all propeller force, and the air flow ratio of the outer/inner duct is infinite; (ideal state)
The air flow ratio in the outer/inner duct between them can be called turbofan engine.
Why does the car engine burn out? Hello, the water temperature will be high because the generator belt burns out together and the water pump does not circulate. If you have any questions, please come to me at Baichebao.
Can I change the car engine? Generally, the vehicle management office will not approve it unless you are the "owner". Other big car modification clubs should be involved in engine modification. You can find such a club, and they all have ways to help you, provided that you join.
Can an automobile engine be replaced by a motor? First look at the power and volume of your motor and how many batteries you need, and then compare it with the power, volume and cost marked by the engine!
Can the car engine be modified? It depends on how you want to modify it, whether you want to add a turbine or replace it with a larger displacement engine. Or improve the exhaust manifold.
There are many modifications.
Modification, the most important thing is balance. To change horsepower, you have to change the suspension and brake, so that you can drive fast and brake.
Finally, quote the famous saying in F 1: Being able to drive fast is not a skill, but knowing when to stop is a real skill.
Pay attention to driving safety.
It is illegal to modify the engine within the scope of family cars.
But if you want to get off the track, that's another matter (first of all, you need a track license, technicians and strong financial support, so the track car can't go on the road)
Mitsubishi engine or Honda engine, which is more resistant to Honda engine, has good quality and is very suitable for modification. After * * *, the horsepower has improved a lot. Americans like to play with Honda's VECT engine. Life expectancy is also very good. There were many classic cars like Honda CRV in the United States in the 1980s.
Mitsubishi engine also depends on the level of home or sports car. Home use is average, much worse than Toyota Honda. But sports cars, such as Lancer evolution's practical 4-steel 2.0 straight 4 engine, can be stabilized at 300 horsepower with twin turbocharging. A street violent sports car that makes Lancer evolution out of the box. Of course, the life of Mitsubishi engines is generally shorter than that of Toyota and Honda. The horsepower setting has a lot to do with it.
In fact, the engines are all metal, and everyone's design technology will not be too bad. It's mainly about positioning.
Honda belongs to two types, and its life and horsepower are set a little higher than Toyota's.
Mitsubishi has a relatively short engine life, but it is cheap, well-known, easy to maintain and low in accessories. Many domestic cars use Mitsubishi engines, such as Southeast Yue Ling and Saab D50.
Variable valve timing technology for valve automobile engine.
First of all, the intake-exhaust ratio of the engine is different from low speed to high speed in the best state. If you are biased towards one side, the performance of the other side will be poor.
Variable valve timing can be adjusted. One valve is VVT once, one valve is CVVT many times, and the intake and exhaust are DVVT. The combination of them is D-CVVT.
The main charm of this technology lies in fuel saving, but the quality and maintenance cost have little influence (which is very different from turbocharging and direct injection in cylinder), and the power advantage is not too great.
What needs special explanation is 1.6DVVT of Chery A3. The performance of this engine is better than other 1.6L, mainly relying on variable intake manifold technology, not DVVT. However, because the car is too heavy, there is not much advantage in actual performance.
Automobile engine bottom temperature Some models have bottom guard plates, that is, engine guard plates, most of which are plastic plates, and some models are not installed. It doesn't matter whether this is installed or not;
In addition, the fender of 4S is usually thin steel plate, also known as chassis armor, and the price is above 100 yuan. It's too tiring and difficult to install it yourself. You need to lift the car before installing the fender. Go to the 4S repair shop. If they have one, buy one for them to install.