In recent years, traditional technologies have been replaced by innovative ones. However, they are often local. That is, they are not given much importance due to limited use. Exactly the same trend is characteristic of the production of automobile engines.
Numerous automakers have announced the production of hybrid as well as fully electronic motors. However, some went even further and introduced the world to cars that are equipped with similar engines. However, these vehicles are a kind of prototypes, which are far from mass production.
Given the current trend, manufacturers of gasoline engines are not going to give up so easily. They use various technologies that allow their products not only to stay afloat, but also to compete with modern technologies.
Despite the craze for electricity, many car owners prefer traditional fuel. The only problem is that refueling a car with traditional gasoline hits the pocket hard. It would seem that in this situation, the right way out could be to replace the engine with a more progressive one. However, do not rush to conclusions.
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Of course, gasoline engines consume a lot of fuel. But what if, in the course of their operation, the operation of some cylinders is limited? In this case, the car will continue to drive at the same speed, and the existing power will remain just a nice addition.
It is noteworthy that this technology is already widely used. True, in order to carry out the plan, the owner of the car will have to do some manipulations with the motor.
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In this case, the blocking of the cylinders must be fully balanced. Otherwise, it will not be possible to equalize the energy generated by the reciprocating movements of the motor. For example, in V12 engines, 6 cylinders can be safely disabled. Such a measure will ensure maximum balancing of the motor and eliminate characteristic vibrations.
Contrary to the opinion of many experts, the engine uses only 30% of its energy in the process of movement. That is, it is not so important how much power it has. The main thing is the economical fuel consumption while driving. So, the technology for the limited use of cylinders can make even the most powerful gasoline units extremely rational and economical.
Until quite recently, it was impossible to imagine an engine that does not have a camshaft. But progress does not stand still. The Freeville company has developed a motor in which there is neither a camshaft nor a so-called throttle valve.
Using such a system allows you to control each cylinder and valves. In other words, if the engine has 4 valves, then if necessary, the driver can only use 2. In turn, a conventional camshaft does not imply such a possibility. But the Freemale motors have a shutdown function 1, 2, 3, etc. cylinders.
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It is also noteworthy that the Freeville engine can operate in different modes. For example, at low revs, it can operate as a two-stroke. This means that the power delivery is significantly improved. 3 thousand about. in min. are perceived as 6 thousand. Moreover.
such an engine is susceptible to several types of fuel. You can even use petrol and diesel. Of course, mixing them together will not work, you will need 2 separate tanks.
By and large, Freeville engines are a true work of automotive art. After all, they allow the driver to fully control the driving process.
Variable engine compression
Many motorists are familiar with the alarming sounds that occur when starting the engine, similar to a knock. Where do these noises come from? Everything is very simple. The knocking sound is due to the high compression that occurs inside the engine. This problem is especially relevant for engines equipped with a turbocharger. It would seem that these sounds do not carry a threat.
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Nissan has done a lot in the intended direction, which has embodied advanced solutions in the Infiniti series. Engineers have equipped cars of this brand with an engine that can change the position of the crankshaft and thereby affect the compression force. Therefore, the driver has a choice – he can choose low compression for stable operation of the system or a high compression ratio, which is necessary for maximum power.
Nissan has achieved phenomenal performance. The engines released by her can carry out a compression ratio from 8 to 1 or from 14 to 1. It all depends on the position of the crankshaft. True, such motors are not yet produced. The world will see them for the first time next year.
HCCI technology is also widely used now. It provides for the ignition of a homogeneous mixture during compression. Thanks to it, gasoline engines of Mazda cars will become 30% more economical. It concerns not only motors, but also transmission, suspension, as well as the power structure of the body.