Engine VVT u200bu200btechnology has been rotten, and it is no longer a patent for high-end cars. Does your car have it?
We often see similar letters on some car engines, such as VVT, DVVT, CVVT, etc. But no matter how it changes, there are three letters VVT.
u200b
VVT is the abbreviation of Variable Valve Timing, which is a technology that can change the engine valve timing.
What is timing
When the engine is working, the valve should be opened and closed repeatedly. For example, the intake valve opens during intake and the exhaust valve closes. The intake and exhaust valves are closed during compression and work, the exhaust valve is opened during exhaust, and the intake valve is closed. Timing is simply the act of reasonably controlling the opening and closing of the intake and exhaust valves.
The crankshaft of the automobile engine drives the camshaft through a timing chain or a timing belt, and the Engine Camshaft For Mercedes Benz The cams on the shaft drive the valves in sequence according to the predetermined positions. In this way, the engine can run normally.
What is variable timing
Ordinary engine timing mechanism is hard-wired, and the valve switch at which position the crankshaft turns to is in a one-to-one correspondence, and there is no way to change it.
However, the characteristics of engine intake and exhaust at different speeds have great Therefore, ordinary timing mechanisms cannot take care of the intake and exhaust efficiency at all speeds. Therefore, the overall performance of the engine cannot make much breakthrough. The variable valve timing system can adjust the timing of valve opening and closing, can advance or delay the opening and closing of the valve within a certain range, can take into account the intake and exhaust efficiency at high and low speeds, and can improve the performance of the engine.
Variable valve timing systems of various manufacturers have different names
Currently, most of the family car engines have variable timing systems, but each manufacturer's name is different.
Most variable timing systems are It is realized by the adjuster, the outer ring of the phase adjuster is connected to the timing chain or the timing belt, and the inner ring is connected to the camshaft. There is a gap between the inner and outer rings, and the solenoid valve controls the oil to enter the corresponding gap to adjust the timing angle.
The engine without variable valve timing system, the camshaft driving wheel is ordinary Pulley. Just like the picture above.
The camshaft driving wheel of the engine with variable valve timing system is A phase adjuster, like the picture above.
The entry-level variable valve timing system has only intake or exhaust side adjustable. At present, the mainstream is that the intake and exhaust are adjustable. In the past, VVT technology was only a technology owned by individual manufacturers, and ordinary cars were rarely useful. Now this technology is very mature and many manufacturers have mastered the technology. In addition, strict emission requirements and fuel consumption indicators have also decided not to adopt it. Some technical means are difficult to meet the requirements. So almost all cars produced today have VVT u200bu200bsystems.
I want to know if my car has a variable valve timing system. The method is very simple , Open the engine compartment, and then check whether there is a VVT solenoid valve on the side of the cylinder head close to the pulley. If there is a solenoid valve, it means that the engine has a variable valve timing system. Of course, some cars are not controlled by the camshaft phase regulator, and these cars cannot find the VVT u200bu200bsolenoid valve.
If you have plenty of time, you can learn how to take care of best camshaft manufacturer. Also, invest in the right steel camshaft performance camshaft.
Quanzhou Yisheng Machinery Co.,Ltd. will make a healthy profit for its owners and provide a rewarding work environment for its employees.
There are different types of , mainly cheap camshafts for sale and automotive camshaft manufacturers.
