Piston Engines- Principle Of Operations Flashcards
1
Q
Difference between petrol and diesel combustion?
A
Petrol ignited via spark plug, diesel initiates combustion from the heat of compression
2
Q
4 stroke cylinder cycle?
A
Suck, squeeze, bang, blow/push. (Induction, compression, power, exhaust)
3
Q
How is valve timing achieved/controlled?
A
Camshaft operating on the rockers via push rods
4
Q
The purpose of valve timing is to achieve maximum what entering the cylinder and m maximum what exiting the cylinder?
A
Maximum charge into the cylinder and maximum waste gas leaving the cylinder
5
Q
What is the ineffective crank angle?
A
Happens at TDC and BDC of piston movement as there is the least vertical movement of the cylinder
6
Q
What controls ignition timing (piston engines)
A
Magnetos
