When fuel is injected late into a diesel engine cylinder,().
A、the exhaust will be clear
B、fuel consumption will be low
C、all the fuel will be burned at top dead center
D、fuel consumption will be high
A、the exhaust will be clear
B、fuel consumption will be low
C、all the fuel will be burned at top dead center
D、fuel consumption will be high
A、quantity of fuel injected is decreased B、quantity of fuel injected will always be increased C、start of injection is advanced D、duration of injection will always be greater
A、Quantity of fuel injected tends to be decreased B、Quantity of fuel injected will always be increased C、Start of injection tends to be advanced D、Duration of injection will always greater
A、the starting air supply is cut off and fuel is injected into the cylinders B、the fuel feeding is cut off and the turning gear is put in C、the starting air supply is cut off and turning gear is taken out D、the electric blower is shut down and fuel is injected into the cylinders
A、A.The process begins after TDC B、B.The process ends before TDC C、C.When the piston is near to the TDC the fuel injection ends D、D.None of the above is true
A、ignition may be delayed B、fuel economy is not affected C、exhaust gas temperature will be unchanged D、the exhaust will be clear
A、ensure penetration and distribution of the fuel in the combustion chamber B、ensure the needle valve is flushed clean during each injection C、prevent combustion gas blowback into the open needle valve D、prevent reflected pressure waves when the needle valve closes
A、caused by retarded injection timing B、caused by a mechanical defect in one cylinder C、caused by high fuel injection pressures D、normal for these conditions
A、stored in a common fuel line B、pumped by the injection pump C、at low pressure D、already atomized