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FIG. EP-04 / INLINE-4 DOHC LIVE CYCLE
Animated inline-four engine cutaway A technical line drawing of a four-cylinder engine. Four pistons, connecting rods and crank throws move together while two camshafts operate the intake and exhaust valves. Intake, compression, power and exhaust stages repeat in a continuous four-stroke cycle. 01 02 03 04 INTAKE EXHAUST CRANK / 720° DOHC
PRIMARY CYLINDER / 01
Intake STROKE 01 / 04
  1. 01 Intake
  2. 02 Compression
  3. 03 Power
  4. 04 Exhaust
CYLINDER PHASE
01 Intake 02 Exhaust 03 Compress 04 Power
CRANK ANGLE 000°

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