Diesel engine piston seizure can be caused by ()
A、poor cooling of cylinder walls
B、improper cooling of the piston
C、insufficient piston lubrication
D、all of the above
A、poor cooling of cylinder walls
B、improper cooling of the piston
C、insufficient piston lubrication
D、all of the above
A、chromium plating piston rings B、knurling the piston skirt C、extended maximum power operation D、applying load to a cold diesel engine
A、double-acting engine B、opposed pistons engine C、single-acting engine D、horizontal acting engine
A、starting the engine while hot B、knurling the piston skirt C、operating the engine overheated D、scuff resistant piston rings
A、prevent piston side thrust B、prevent engine friction losses C、transmit heat from the piston to the cylinder liner D、remove oil from the cylinder combustion space
A、A.starting the engine hot B、B.knurling the piston skirt C、C.operating an overheated engine D、D.using scuff resistant piston rings
A、radiated through the engine block B、transferred to water cooled cylinder walls C、conducted through the piston crown D、transferred to escaping exhaust gases
A、conducted through the engine block B、conducted to water cooled cylinder walls C、conducted through the piston crown D、loss to escaping exhaust gases
A、excessive piston to liner clearance B、excessive dirt beneath the piston crown that reduces heat transfer C、faulty nozzle spray D、all of the above