14 / 32
12
Current Valeo O.E. Long Travel Damper techno-
logy can be found in three product categories;
SX, WX and High Angular Displacement Techno-
logy (NX1…NX4). The design depends on the
maximum torque of the vehicle engine and on
the diameter of the clutch. A majority of the
KIT4P range features a WX damper. On certain
applications such as Ford Transit, an SX damper
is used. The H.A.D. technology is used only in
O.E. currently. This will enable Valeo to develop
further KIT4P versions for vehicles with higher
torques on the I.A.M.
The L.T.D. technology consists of a specific friction
plate with a high damper capacity and a damper
with very low stiffness for improved filtration
and transmission performance. This low angular
stiffness coupled with the specifically matched
flywheel inertia ensures the appropriate damping
level as well as an extended life of the clutch kit.
WX Long Travel Damper Disc combination
Multi spring pre-damper cassette
with 2 stages
Main damper springs
2 or even 3 stages
Damper hysteresis washers
Plate retaining stilts
6. KIT4P design:
Long Travel Damper (L.T.D.)