Diesel Engines Flashcards
Where are diesel engines used on Naval vessels? 4 parts
Diesel generator
Maintain engines and motor boats
Air compressors
Fire pumps
The first cylinder is normally located opposite the drive end (gearbox end) I.e. on the front of the engine known as the …
Free end
The cylinder head … off the top of the cylinders.
Closes
The cylinder head forms part of the … chamber and accommodates the injector.
Combustion
In the cylinder head are the … and … ports, as well as the valves and part of the valve operating gear
Intake
Exhaust
The cylinder head joint makes a …, …, …, and … tight seal between the cylinder block and cylinder head
Water
Oil
Gas
Air
The sump acts as a … for oil draining from the bearings, rocker gear etc
Reservoir
Draw the generic engine/ drive layout
Where does the cylinder numbering start?
Free end
Piston compression rings provide a sliding … between the outer surface of the piston and the inner surface of the cylinder
Seal
Piston rings prevent the fuel/air and exhaust gasses in the combustion chamber from leaking into the … during the compression and combustion
Sump
Oil control/scrapper rings prevent oil from the sump leaking into the combustion chamber, where it would be … and …
Burned and lost
Piston rings transfer … from the piston to the cylinder or cylinder liner.
Heat
Piston rings assist with the lubrication and the … of the piston and cylinder liner, by forming an oil wedge.
Sealing
The connecting rod connects the … to the …
Piston
Crankshaft
The bearing around the gudgein pin is known as the “…”
Small end
The bearing around the crankshaft is known as the “…”
Big end
The gudgeon pin connects the … to the … rod through the small end bearing and transmits the load from the piston to the connecting rod
Piston
Connecting rod
The Crankshafts main task is to change the … motion of the piston, to … motion to provide drive for the driven unit and auxiliaries
Reciprocating
Rotating
The flywheel is used to promote … running during the … strikes of an engine and to help the engine other the … strokes
Smooth
Non-power
Idle
The purpose of the camshaft is to … the opening and closing of both the inlet and exhaust …
Control
Valves
The camshafts are driven by and at … the speed of the crankshaft.
Half
The spur gears, … or … belts are used to drive the camshafts
Chains
Timing
The task of valves is to open the intake ports at the end of the exhaust stroke / during the induction stroke and the exhaust port at the end of the power stroke / during the exhaust stroke and to seal them off during the … / … strokes
Compression
Power