21
Inlet valve
Tolerance compensation for inlet
triple RR (roller rocker)
To ensure uniform compression
between the two cams and rollers
of the roller rockers, the spindle
shaft of the inlet roller rocker is
convex in shape in order to
compensate alignment and
component tolerances. This
prevents the roller rockers from
“tilting“.
SSP217_024
Double cam
Hydraulic valve lifter
with slide pad (hydraulic
valve tappet)
Oil duct
Spindle shaft
Inlet valve 2
14.9˚
Inlet valve 1 and 3
21.6
o
SSP217_021
Cylinder head
The three inlet valves are actuated via a triple
roller rocker.
A double cam actuates the rocker by means
of two rollers between the rocker arms.
SSP217_025
Triple roller rocker
Cams
Rollers
Spindle shaft
axis (target)
Spindle shaft
axis (actual)
Camshaft axis
For the sake of clarity, the
tolerance of the spindle shaft
relative to the camshaft has
been greatly exaggerated in
the illustration.
To Next Page
Loading...
Need help?
General
