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As there is no car with the engine camshaft
Christian von Kenigsegg smiles: "A few years ago, GM engineers say that we will never see the engine without camshaft. At the moment, we're going on a machine without a cam. It turns out that he was wrong. " Welcome to the future.
According to Koenigsegg wing lives a small company called Freevalve. What they do, is simply incredible. You see, in the engines there is such a thing as a camshaft. It has cams which, during rotation of the valves is opened and closed. This element is present in the engine since its inception.
The system works without question, but valves are open or closed. There is an intermediate stage, which is not effective. However, engineers are persistently think camshaft - this is the only solution available. How is it? Why not get crazy and do not come up with some absurd idea - for example, associated with the compressed air?
8 photos, the source
Engine Freevalve rid of the camshaft and the throttle body, replacing them with pneumatic actuators on each cylinder. This concept has long been found its use. The vehicles used by the solenoid valve opening mechanism. This means that the concept has proved itself. It remains to reduce it to the size of something more mundane.
The system provides fully independent control of each cylinder and each valve. If you have a 4 valve, then the need to open only two. With conventional camshaft that can not be achieved. Freevalve can disable one cylinder, two, three, and so on.
More surprising is that the system can operate in different modes. At low revs the engine can operate as a two-stroke, which significantly improves power supply: 3000 r / min are perceived as 6000 rev / min. The engine can run on a cycle Miller (like the Mazda Xedos 9), let him and complex, but it is much more efficient. And plus the entire engine can operate on several types of fuel. Christian said that petrol and diesel will be able to get along together. Of course, we are not talking about their merger into a single mixture. Two separate tank would be a great idea.
However, the most impressive part: in relation to the current engine system provides 30% more power and torque and 50% more fuel economy. It will also reduce the size of the engine. So that was built from scratch compact engine can compete with much larger volume engines.
Christian described the work of the camshaft as "playing the piano with a broom," while Freevalve - it is a genuine "play with your fingers." You will have more control. Since all the elements operate independently of one cylinder or actuator could be damaged, and the engine will continue to run for many more years.
During a short trip on the Saab 9-5, which Freevalve used for the development of its technology, the portal Jalopnik commentator felt like a normal car. Is not that the best compliment for any innovative method? At low speeds the engine feels like a bit of a diesel, but over time his work is smoothed. The system is functioning, but the software engine is still in its infancy. The Swedes need to improve it, but they have time. Before us is the fifth generation of the system, and on the horizon looms the 6th.
8.
Christian does not believe that this technology will save the internal combustion engine from extinction, but it can significantly prolong his life. Just imagine that this idea could come to fruition 10 years ago. Where would ICE today ?!
Source:
According to Koenigsegg wing lives a small company called Freevalve. What they do, is simply incredible. You see, in the engines there is such a thing as a camshaft. It has cams which, during rotation of the valves is opened and closed. This element is present in the engine since its inception.
The system works without question, but valves are open or closed. There is an intermediate stage, which is not effective. However, engineers are persistently think camshaft - this is the only solution available. How is it? Why not get crazy and do not come up with some absurd idea - for example, associated with the compressed air?
8 photos, the source
Engine Freevalve rid of the camshaft and the throttle body, replacing them with pneumatic actuators on each cylinder. This concept has long been found its use. The vehicles used by the solenoid valve opening mechanism. This means that the concept has proved itself. It remains to reduce it to the size of something more mundane.
The system provides fully independent control of each cylinder and each valve. If you have a 4 valve, then the need to open only two. With conventional camshaft that can not be achieved. Freevalve can disable one cylinder, two, three, and so on.
More surprising is that the system can operate in different modes. At low revs the engine can operate as a two-stroke, which significantly improves power supply: 3000 r / min are perceived as 6000 rev / min. The engine can run on a cycle Miller (like the Mazda Xedos 9), let him and complex, but it is much more efficient. And plus the entire engine can operate on several types of fuel. Christian said that petrol and diesel will be able to get along together. Of course, we are not talking about their merger into a single mixture. Two separate tank would be a great idea.
However, the most impressive part: in relation to the current engine system provides 30% more power and torque and 50% more fuel economy. It will also reduce the size of the engine. So that was built from scratch compact engine can compete with much larger volume engines.
Christian described the work of the camshaft as "playing the piano with a broom," while Freevalve - it is a genuine "play with your fingers." You will have more control. Since all the elements operate independently of one cylinder or actuator could be damaged, and the engine will continue to run for many more years.
During a short trip on the Saab 9-5, which Freevalve used for the development of its technology, the portal Jalopnik commentator felt like a normal car. Is not that the best compliment for any innovative method? At low speeds the engine feels like a bit of a diesel, but over time his work is smoothed. The system is functioning, but the software engine is still in its infancy. The Swedes need to improve it, but they have time. Before us is the fifth generation of the system, and on the horizon looms the 6th.
8.
Christian does not believe that this technology will save the internal combustion engine from extinction, but it can significantly prolong his life. Just imagine that this idea could come to fruition 10 years ago. Where would ICE today ?!
Source:
