ENGINE FLYWHEEL

Description 1024B

1.9 JTD 16V

CONSTRUCTION SPECIFICATIONS

Twin damper flywheel (DVA) with dual ramp. This flywheel consists of two masses, one forming one piece with the crankshaft and the other with the gearbox main shaft, via the clutch plate. There is a dual ramp, torsional flexible system between these two masses created by two pairs of springs with differentiated operation depending on the torque transmitted.

The clutch engagement mechanism, located between the dual flywheel and gearbox, consists of a rigid plate (unsprung) that improves gear manoeuvrability due to its reduced inertia.

1 - Mass in one piece with the crankshaft

2 - Mass in one piece with the gearbox main shaft

3 - Flexible torsion damping system

4 - Ring gear

Twin ramp torsional flexible system intervention diagram

1.9 JTD 8V

CONSTRUCTION SPECIFICATIONS

Dual mass, DVA (dual mass vibration-damping flywheel), one mass integral with the crankshaft and the other on the gearbox mainshaft with an interposed flexible torsional damping system.

The resonance points which, on the conventional system (rigid flywheel and dampened disc) are found at between 800 and 2200 rpm, have been moved to lower rotation speeds, outside of the operation range, thereby allowing improved damping of torsional vibrations and a reduction in noise.

The clutch engagement mechanism, located between the dual flywheel and gearbox, consists of a rigid plate (unsprung) that improves gear manoeuvrability due to its reduced inertia.

1 - Crankshaft

2 - Mass in one piece with the crankshaft

3 - Mass in one piece with the gearbox main shaft

4 - Flexible torsion damping system

5 - Clutch plate

6 - Thrust spring

7 - Thrust bearing

8 - Gearbox main shaft

9 - Ring gear

2.4 JTD 20V

ENGINE FLYWHEEL

Specifications

Type

Twin damper flywheel (DVA) with dual ramp. This flywheel consists of two masses, one forming one piece with the crankshaft and the other with the gearbox main shaft, via the clutch plate. There is a dual ramp, torsional flexible system between these two masses created by two pairs of springs with differentiated operation depending on the torque transmitted.

The clutch engagement mechanism, located between the dual flywheel and gearbox, consists of a rigid plate (unsprung) that improves gear manoeuvrability due to its reduced inertia.

• 1 Mass integral with engine
• 2 Mass integral with gearbox mainshaft
• 3 Flexible torsional damping system
• 4 Ring gear