Medium-Speed Main Engine
AssemblyA medium-speed four-stroke diesel of around 40 cm bore through a reduction gear to a controllable-pitch propeller; twin engines give the speed and redundancy a tight ferry schedule needs. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Medium-Speed Main Engine parts and their functions
9 top-level parts · 506 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Engine Block | 1× | Engine block and bedplate |
| 2 | Crankshaft | 1× | Forged one-piece crankshaft transmitting engine power into the reduction gear. |
| 3 | Cylinder Unit 6 parts | 12× | Vee-form power cylinders |
| 4 | Turbocharger | 2× | Exhaust-gas turbochargers |
| 5 | Gearbox Housing | 1× | Reduction gear casing |
| 6 | Helical Gear Pair | 1× | Reduction gear set |
| 7 | Ball Bearing | 6× | Gear and engine bearings |
| 8 | Fuel Injection System 5 parts | 1× | Fuel injection supply |
| 9 | Lubrication System 5 parts | 1× | Lubrication system |
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Bill of materials for Medium-Speed Main Engine
9 top-level lines · 25 rows shown · 506 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Engine Block | roro-ship-engine-block | 1× | 1 | · | part |
| 2 | Crankshaft | roro-ship-crankshaft | 1× | 1 | · | part |
| 3 | Cylinder Unit 6 parts | roro-ship-cylinder-unit | 12× | 12 | 32 | assembly |
| 3.1 | Piston | roro-ship-piston | 1× | 12 | · | part |
| 3.2 | Cylinder Liner | roro-ship-cyl-liner | 1× | 12 | · | part |
| 3.3 | Cylinder Head | roro-ship-cyl-head | 1× | 12 | · | part |
| 3.4 | Fuel Injection Valve | roro-ship-fuel-injector | 1× | 12 | · | part |
| 3.5 | O-Ring Set | oring-set | 4× | 48 | · | part |
| 3.6 | Fastener Set | fastener-set | 24× | 288 | · | part |
| 4 | Turbocharger | roro-ship-turbocharger | 2× | 2 | · | part |
| 5 | Gearbox Housing | gearbox-housing | 1× | 1 | · | part |
| 6 | Helical Gear Pair | gear-pair | 1× | 1 | · | part |
| 7 | Ball Bearing | ball-bearing | 6× | 6 | · | part |
| 8 | Fuel Injection System 5 parts | roro-ship-fuel-system | 1× | 1 | 69 | assembly |
| 8.1 | Fuel Injection Pump | roro-ship-fuel-pump | 12× | 12 | · | part |
| 8.2 | Fuel Filter | roro-ship-fuel-filter | 2× | 2 | · | part |
| 8.3 | Coolant Pump | coolant-pump | 1× | 1 | · | part |
| 8.4 | Pressure Sensor | pressure-sensor | 4× | 4 | · | part |
| 8.5 | Fastener Set | fastener-set | 50× | 50 | · | part |
| 9 | Lubrication System 5 parts | roro-ship-lube-system | 1× | 1 | 41 | assembly |
| 9.1 | Lube-Oil Pump | roro-ship-lo-pump | 2× | 2 | · | part |
| 9.2 | Lube-Oil Cooler | roro-ship-lo-cooler | 1× | 1 | · | part |
| 9.3 | Lube-Oil Filter | roro-ship-lo-filter | 2× | 2 | · | part |
| 9.4 | Oil Seal | oil-seal | 6× | 6 | · | part |
| 9.5 | Fastener Set | fastener-set | 30× | 30 | · | part |
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Where the medium-speed main engine is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $500–$50k. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| weichai.com ↗ | Weifang, CN | Diesel & power engines | 50 units | 12–16 wks |
| cumminsindia.com ↗ | Pune, IN | Diesel engines | 50 units | 12–16 wks |
|
🇨🇳Yuchai
yuchai.com ↗
|
Yulin, CN | Diesel engines | 50 units | 12–16 wks |
| koel.co.in ↗ | Pune, IN | Diesel & gas engines | 50 units | 12–16 wks |
| ashokleyland.com ↗ | Chennai, IN | Engines & commercial vehicles | 50 units | 12–16 wks |