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2026. 6. 30. 작업

증상

What are the differences between a dual mass flywheel and a standard flywheel?

처리 내용

A dual mass flywheel (or DMF) is a flywheel that is split into two halves (hence the name...), with a spring or springs between them to dampen out sudden changes in torque and rotation speed, and thus smoothen out vibrations in the drivetrain - making for a smoother drive, particularly in diesel engined vehicles, and the newer two and three cylinder engines that aren't as smooth as a properly balanced larger engine. As usual, Wikipedia provides a nice diagram (red: crankshaft side, blue:transmission side): The key disadvantage of them is that they wear out, and are very expensive to change - often meaning they get replaced with conventional solid flywheels by owners of older vehicles who are less concerned about refinement.