Changes in Engines Energy Indicators when the Cylinders are Disconnected in the Unloaded Mode of Operation
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.]
- Центральноукраїнський науковий вісник. Технічні науки. Вип. 7(38). Ч. 1.
- 2023.
- С. 110-119.
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.
disconnecting cylinders operation without load pumping losses
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.
disconnecting cylinders operation without load pumping losses