AGK day 1 Flashcards
What is the power torque rpm equation
Power= torque x rpm
What is torque
Force over a distance
What is the torque equation
Force x distance
What are torque and speed proportionally
Inversely proportional
The 4 stages of the piston engine energy
Chemical energy to heat energy to pressure energy to mechanical energy
What starts the ignition
A spark plug
What pushes down the piston
Hot air
What is the fully extended piston called
Top dead centre
What is a fully unextended piston
Bottom dead centre
What is the 4 stroke Otto cycle
-induction
-compression
-power
-exhaust
What happens in induction stroke
Inlet valve opens and volume and pressure increases pushing piston down
What is the compression stroke
The inlet valve closes, temp increases volume decreases
What is the power stroke
After ignition the pressure reduces volume increases leading the crankshaft getting sent back down
What is the exhaust stroke
The exhaust valve is opened and the volume reduces back
What is an ineffective crank angle
A smaller linear movement of piston
