Changes in Engines Energy Indicators when the Cylinders are Disconnected in the Unloaded Mode of Operation [Text] / A. Moldavian, Ye. Dubinin, O. Polyanskyi [et al.]
Language: English Edition: Центральноукраїнський науковий вісник. Технічні науки. Вип. 7(38). Ч. 1Description: С. 110-119Subject(s): Online resources: In: Центральноукраїнський науковий вісник. Технічні науки. Вип. 738. Ч. 1
Статті
Researched regimes of engine operation without load: 1 – test of the original engine; 2 – test with
disconnection of four cylinders by stopping the fuel supply; 3 – test with the disconnection of four cylinders by
simultaneously stopping the fuel supply and the absence of pumping losses of the cylinder-piston group (CPG)
of the disconnected cylinders. It was established that when the crankshaft rotation frequency increases from
1400 min-1 to 2550 min-1 when the fuel supply to half of the cylinders is turned off, the fuel economy changes
from 0 to 0.53 kg/h. When the fuel is turned off and there are no CPG pumping losses, the fuel economy changes from 1.2 kg/h to 3.88 kg/h. Recommendations have been developed that allow to increase the efficiency of wheeled vehicles by 11-26% by disconnecting a part of the cylinders.
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