4 technologies commonly used on engines of Japanese cars

4 technologies commonly used on engines of Japanese cars


Japanese cars are always loved and trusted by the world because of their durability, high performance, and low failure. This is largely thanks to the advanced technology applied.

Turbocharger

Turbochargers are a familiar technology because it is used on many vehicles. Thanks to the turbocharger, the car can utilize the exhaust stream to make the rotor work, thereby compressing more air to help the car’s capacity to be increased when the car runs fast. In fact, this turbocharged engine was only popularly used by Japanese automakers a few years ago. About 5 years ago, for models that required high engine power, Japanese automakers often increased the capacity, not equipped with turbocharger technology.

Turbocharged engine of Honda Civic

Turbocharged engine of Honda Civic

However, thanks to countries that have imposed stricter emission standards and imposed a special excise tax on large-capacity vehicles, Japanese carmakers have opted for the turbo boost. pressure. Today, in Vietnam, Japanese models using turbochargers are often referred to as Honda Civic, Honda CR-V, Ford Everest …

Variable camshaft

This technology has been used since 1980 in Italy, the Japanese have made improvements to promote this technology. Variable camshaft helps optimize the opening / closing of the valve, helping the vehicle to save fuel. Normally, the time of opening / closing a coin will be set according to a specific and fixed level. However, this leads to two conditions: too long opening of the valve causes fuel, or too little opening, it is difficult to meet the operation of the engine. Thanks to the sensor shaft, these two conditions have been overcome.

Variable camshaft

Variable camshaft

The opening and closing of the pennies helps the car both save fuel and operate well. Each automaker will have its own name for variable camshaft technology. For example, Toyota VVT-I system; Honda VTEC system … Almost Honda car engine and Toyota car engine are all using this system.

SkyActiv

Mazda is the most famous car company with this technology. Mazda car engine It is not equipped with a booster system but still generates extremely large capacity thanks to SkyActiv technology that helps increase the compression ratio up to 14: 1. Car experts say that the higher the compression ratio, the more efficient the combustion of biomass will help improve performance. So the compression ratio provided by SkyActiv technology is very useful for cars.

Mazda has successfully developed SkyActiv-X

Mazda has successfully developed SkyActiv-X

The generation of SkyActiv G engines currently on sale in Vietnam has a 14: 1 compression ratio. This is achieved by improvements such as: specially designed pistons, injectors switch to beam form, engine cooling ability is optimized … These improvements help the combustion chamber from overheating, preventing The risk of vehicle explosion. Not just stopping at SkyActiv, Mazda also improved this technology to SkyActiv-X level. The new SkyActiv-X engine helps compression ratio work between 30: 1 and 40: 1. Thanks to this, the fuel – air mixture is capable of igniting itself.

Boxer

For sports car lovers, the Boxer engine is definitely a desirable machine. Today, Boxer engines are very popular with Porsche and Subaru. Boxer engines are characterized by cylinders arranged in symmetrical order, horizontal. Thanks to this design, the center of the car is lowered a bit, helping the car to turn into a stable and safer way even at high speeds.

Boxer engine

Boxer engine

The great advantage of Boxer engines is that they possess the opposite vibration force so they are able to suppress vibration very well without the aid of balancing shaft systems. Users of Boxer motor vehicles will feel the smoothness and flexibility of the vehicle. The Boxer engine also has a disadvantage, which is that it requires quite high production costs, besides the chassis of the car must also be designed to match this engine. Nissan plans to apply the Boxer engine in Infiniti QX5 – a luxury SUV in 2019, which can be seen as a future technology.

Yuan Fang

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