11.1 Engine data
The standard data of the X92B engine is given in Table 11-1 - General data.
Tab 11-1 General data
Item Value Unit
Cylinder bore 920 mm
Piston stroke 3468 mm
Speed range 70 to 80 rpm
Stroke / bore ratio 3.77 -
Available number of cylinders 6 to 12 -
Number of pulses for cylinder pre-lubrication 245 -
Table 11-2 - Rated power gives the data that follow:
•
Rating point
For the rating points refer to Figure 11-1.
•
Speed
This list gives the speed of the crankshaft in rpm.
•
Power
The power in kW for each cylinder refers to the ISO standard reference conditions:
○
Total barometric pressure is 1.0 bar
○
Suction air temperature is 25°C
○
Relative humidity is 30%
○
Cooling water temperature at the engine inlet is 25°C.
•
BSFC
This list gives the Brake Specific Fuel Consumption (BSFC) for fuel of lower heating value
42.7 MJ/kg (10 200 kcal/kg) and standard tuning.
•
Mean piston speed
This list gives the mean piston speed in m/s.
•
MEP
This list gives the Mean Effective Pressure (MEP) in the combustion chamber in bar.
•
Firing pressure
This list gives a guide value for the firing pressure in the combustion chamber in bar. The
firing pressure can be lower than the guide values in the table.
X92-B
AA00-0000-00AAA-030A-A
Operation Manual Engine data
Winterthur Gas & Diesel Ltd.
- 416 - Issue 002 2021-11
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