4
XE ENGINE BRAKE
General
95
XF series
2-12
Hydraulic control of the exhaust valves
To open an exhaust valve hydraulically at the
end of a compression stroke, optimal use is
made of the valve diagram.
This means that the DEB uses an exhaust valve
rocker of one cylinder to open an exhaust valve
for another cylinder.
Cylinders 1, 2 and 3
Exhaust valve rocker of cylinder 1 hydraulically
opens the exhaust valve of cylinder 3
Exhaust valve rocker of cylinder 2 hydraulically
opens the exhaust valve of cylinder 1
Exhaust valve rocker of cylinder 3 hydraulically
opens the exhaust valve of cylinder 2
Cylinders 4, 5 and 6
Exhaust valve rocker of cylinder 4 hydraulically
opens the exhaust valve of cylinder 5
Exhaust valve rocker of cylinder 5 hydraulically
opens the exhaust valve of cylinder 6
Exhaust valve rocker of cylinder 6 hydraulically
opens the exhaust valve of cylinder 4
1
3
2
4
6
5
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7
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