There is a perception that control the “gas” compression of the motor as well as nitro, is almost impossible. However, for a long time had already been quite successful systems for remote control of frequency of rotation of the shaft diesel. Failure, usually associated with the specificity of modes of diesel and errors in the design of standard mass carburetors of the motors. Such subtleties on the proposed material, telling about the alteration of the compression of the engine under remote control.
The most common variant of the throttle — mounted on the carburetor air flap driven by a cord system or steering of the machine. Unfortunately, management efficiency “gas” when it was unstable (it all depended on the design features and condition “diesel”).
It should be noted that the performance of this carb does not depend on the way throttling futorki: good and simple tin washer, and classic rotary drum with cross feedthrough. The main thing in this scheme is that the nozzle and the spray orifice behind air shutter, and if you change the flow futorki vacuum behind the valve increases sharply compared with the normal mode. Nitro engines this is not the case, they begin to “choke” the working rich mixture. Nominal consumption, fuel “diesel” noticeably smaller, so the compression engines are working steadily even when almost fully closed throttle, and is much enriched mixture have little influence on their work, especially at low speeds. But “diesels” like “perezaliv” has specific limitations, which, however, allow them to work in the regime of very small “gas”. By the way, this theory is not at odds with the practice in Vogue when was motors “Rhythm” in its first, best performance. Other engines such radiolaboratory practically were not fitted because of the instability of the results.
However, it is still not the brand of the engine and not its design. Of course, it is desirable that “diesel” reinvent radiolarians, was in good condition, had a dense, cylinder-piston pair and sealed “nervosi” sock Carter. However, in modern engines to achieve adjustment of the gas within wide limits can be extremely rare. And the reason for that is very common in our time, the carb with the so-called ring nozzle. Carefully examined in its design, then it will be clear what is wrong. For example, take the carb most efficient mass engine KMD-2,5. Take a look at the drawings and try to imagine what would happen if the fuel suction with closed air flap will increase several times.