Question

In four stroke engine there is one power stroke in _____ of crankshaft rotation.

Answer 1

Four strokes have four strokes.
Intake (down), compression (up), combustion (down), exhaust (up).
Each stroke is 180 degrees of crank rotation.
That makes 720 degrees of rotation.

Answer 2

Answer:

In a four-stroke engine, one power stroke occurs every two crankshaft rotations.

Explanation:

• One whole power cycle consists of four strokes.

• The suction stroke is at a 180-degree angle.

• The compression stroke is at an angle of 180 degrees.

• For the power stroke, turn 180 degrees.

• For the expansion stroke, turn 180 degrees.

In a 4-stroke engine, this means that one complete power cycle takes 720° or two crankshaft revolutions to complete.

The aforementioned angles for each stroke are hypothetical because the actual valve timing for all of the above processes has different angles.

#SPJ2