Temperatures of operating media
A1.06
M20
en / 13.07.1999 TD000036 1/1
Ĺ
Lubricating oil
- engine inlet 60 - 65 °C
- temperature rise at rated output 10 - 14 °C
Cooling water
- engine outlet 65 - 80 °C
- temperature rise at rated output 7 - 10 °C
Charge air
see also
A3.06.05.nn
- engine inlet 45 - 60 °C
Distillate fuel
40 - 50 °C *1
Fuel before injection pumps
(see diagram) *1
Permissible injection viscosity must be set on the viscothermic device to enable a kinematic viscosity of 10 - 12
mm
2
/s (cSt) to be reached before the injection pumps, corresponding to a dynamic viscosity of 9 - 11 mPas (di-
stillate fuel below 10 mm
2
/s or 9 m Pas).
The heavy fuel specifications defined by
Caterpillar / MaK
(e.g. RHM 35 (~ IF 380) give the heavy fuel tempe-
rature before engine starting.
*1However, the maximum temperature at injection pumps must not exceed 155 °C!
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