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Operation Manual / 4 Product description / A130-H.. - A140-H
4 Monitoring operation / 4.1 Oil pressure, oil temperature
4
Monitoring operation
4.1
Oil pressure, oil temperature
Lubricating oil pressure, oil inlet
To limit the oil flow rate through the turbocharger to the admissible values with the engine
at full load, an oil orifice is mandatory or already fitted at the oil inlet of the bearing casing if
the oil inlet pressure is > 3 bar.
CAUTION
Assuring lubricating oil pressure
Serious damage to engine or property can result from missing or insuffi-
cient lubricating oil supply.
The lubricating oil pressure must be monitored during operation and the
u
necessary pressure assured at the oil inlet.
Status for operation
Normal operation
Engine start: Cold oil, admissible for maximal 15
minutes
Engine idling, admissible for maximal 1 hour
Pre-lubrication and post-lubrication (engine stopped)
Warning signal: (n ≥ 0.5 x n
Alarm signal: Not admissible. Stop the engine immedi-
ately.
Table 6: Lubricating oil pressure at oil inlet before turbocharger
For monitoring the lubricating oil pressure, ABB Turbo Systems recommends installing an
"M" manometer immediately before the turbocharger. If the pressure is controlled electron-
ically, the appropriate signals are to be triggered at the warning and alarm values.
*) If the drain pipe is vented, the measuring point for lubricating oil temperature can be in-
stalled at the outlet in the vent tank. Otherwise the measurement should be taken in the
drain pipe as close to the turbocharger as possible.
© Copyright 2017 ABB. All rights reserved.
)
Bmax
01 Turbocharger contact surface
02 Oil inlet
03 Oil outlet
M Oil pressure measuring point
T
Oil temperature measuring point
HZTL4030_EN
Pressure at oil inlet before tur-
bocharger [bar]
2.0 < p
≤ 4.5
oil
< 8.0
0.5 < p
≤ 2.5
oil
0.5 < p
≤ 1.0
oil
< 1.25
< 0.5
Revision D
May 2017
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