List of illustrations
1 Introduction
1-1 Side view (generic) ...................................................................................... 33
1-2 Engine numbering (generic) ........................................................................ 34
3 Design and function of the engine
3-1 Pressure - volume diagram and schematic of the two-stroke diesel cycle .. 63
3-2 Operating range .......................................................................................... 64
3-3 Tuning options ............................................................................................. 66
3-4 Schematic diagram - Relation Speed/Power (FPP) .................................... 69
4 Design and function of systems
4-1 Line codes for systems ................................................................................ 72
4-2 Cooling water system (generic and simplified) ............................................ 75
4-3 Wash-water system (generic and simplified) ............................................... 77
4-4 System oil system (generic and simplified) ................................................. 79
4-5 Starting air system (generic and simplified) ................................................ 85
4-6 Scavenge air system ................................................................................... 87
4-7 Fuel system with FLV (generic and simplified) ............................................ 94
4-8 Fuel system with ICU (generic and simplified) ............................................ 95
4-9 HP SCR system - layout .............................................................................. 97
4-10 HP SCR system - emergency bypass ......................................................... 99
4-11 HP SCR system - change from Tier III to bypass ........................................ 100
4-12 HP SCR system - purging and venting ........................................................ 101
4-13 HP SCR system - emergency bypass ......................................................... 102
4-14 HP SCR system - preparation ..................................................................... 103
4-15 HP SCR system - Tier III ............................................................................. 104
4-16 HP SCR system - principal control configuration ........................................ 105
4-17 Control box E48 ........................................................................................... 106
4-18 Control box E49 ........................................................................................... 107
4-19 Control box E50 ........................................................................................... 108
4-20 LDU-20 page - HP SCR SYSTEM STATUS (MAIN PAGE) ........................ 109
4-21 LDU-20 page - HP SCR SYSTEM OVERVIEW .......................................... 110
4-22 LDU-20 page - HP SCR INTERFACES ...................................................... 111
4-23 LDU-20 page - HP SCR MANUAL VALVE CONTROL ............................... 112
4-24 LDU-20 page - HP SCR SOFTWARE INFO ............................................... 113
4-25 LDU-20 page - HP SCR PAGE INDEX ....................................................... 114
4-26 LP SCR temperature controlled (example) ................................................. 117
4-27 LP SCR bypass rate controlled (example) .................................................. 118
4-28 LP SCR control system layout ..................................................................... 120
4-29 LP SCR system - principal control configuration ......................................... 121
4-30 Control box E70 with option SPC ................................................................ 122
4-31 Control box E71 with option SPC ................................................................ 123
4-32 Control boxes E72 and E73 ........................................................................ 124
X72-B
Operation Manual
Winterthur Gas & Diesel Ltd.
- 13 - Issue 003 2021-12
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