Dual-Fuel Two-Stroke Engine
AssemblyA 700 mm-bore, 5-cylinder low-speed engine (~12.4 MW at 66 rpm) injecting natural gas at 300 bar with pilot fuel oil; bedplate, frame, cylinder units, running gear and the gas-injection train make one engine a several-thousand-part machine. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Dual-Fuel Two-Stroke Engine parts and their functions
9 top-level parts · 3,768 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Cylinder Unit 9 parts | 5× | Liner, piston, exhaust valve and gas injectors per cylinder |
| 2 | Engine Bedplate | 1× | Welded bedplate with main-bearing saddles |
| 3 | Crankshaft | 1× | Semi-built forged crankshaft, ~440 t including flywheel, turning at 66 rpm. |
| 4 | Engine Tie Rod | 60× | Pretensioned tie rods clamping bedplate, frame and cylinder block |
| 5 | Main Bearing Shell | 6× | White-metal main-bearing shells |
| 6 | Turbocharger | 2× | Axial-turbine turbocharger delivering ~4 bar charge air. |
| 7 | Engine Service Pump 5 parts | 4× | Lube-oil, jacket-cooling and cylinder-lubrication pumps |
| 8 | Fuel Injection Pump | 5× | One pilot-fuel injection pump per cylinder |
| 9 | Engine Pipe Bundle 4 parts | 1× | Lube, cooling, control-air and gas-fuel tubing of the engine |
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Bill of materials for Dual-Fuel Two-Stroke Engine
9 top-level lines · 27 rows shown · 3,768 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Cylinder Unit 9 parts | lng-cylinder-unit | 5× | 5 | 13 | assembly |
| 1.1 | Cylinder Liner | lng-cylinder-liner | 1× | 5 | · | part |
| 1.2 | Piston Crown & Skirt | lng-piston-crown | 1× | 5 | · | part |
| 1.3 | Piston Ring | lng-piston-ring | 4× | 20 | · | part |
| 1.4 | Crosshead & Connecting Rod | lng-crosshead | 1× | 5 | · | part |
| 1.5 | Exhaust Valve | lng-exhaust-valve | 1× | 5 | · | part |
| 1.6 | Gas Injection Valve | lng-gas-injector | 2× | 10 | · | part |
| 1.7 | Pilot Fuel Injector | lng-pilot-injector | 1× | 5 | · | part |
| 1.8 | Cylinder Cover | lng-cylinder-cover | 1× | 5 | · | part |
| 1.9 | Fastener Set | fastener-set | 1× | 5 | · | part |
| 2 | Engine Bedplate | lng-engine-bedplate | 1× | 1 | · | part |
| 3 | Crankshaft | lng-crankshaft | 1× | 1 | · | part |
| 4 | Engine Tie Rod | lng-engine-tie-rod | 60× | 60 | · | part |
| 5 | Main Bearing Shell | lng-main-bearing | 6× | 6 | · | part |
| 6 | Turbocharger | lng-turbocharger | 2× | 2 | · | part |
| 7 | Engine Service Pump 5 parts | lng-engine-pump | 4× | 4 | 7 | assembly |
| 7.1 | Pump Casing | lng-pump-casing | 1× | 4 | · | part |
| 7.2 | Pump Impeller | lng-pump-impeller | 1× | 4 | · | part |
| 7.3 | Ball Bearing | ball-bearing | 2× | 8 | · | part |
| 7.4 | Oil Seal | oil-seal | 2× | 8 | · | part |
| 7.5 | Fastener Set | fastener-set | 1× | 4 | · | part |
| 8 | Fuel Injection Pump | lng-fuel-injection-pump | 5× | 5 | · | part |
| 9 | Engine Pipe Bundle 4 parts | lng-engine-pipe-bundle | 1× | 1 | 3,600 | assembly |
| 9.1 | Pipe Spool | lng-pipe-spool | 240× | 240 | · | part |
| 9.2 | Double-Wall Gas Pipe | lng-double-wall-gas-pipe | 60× | 60 | · | part |
| 9.3 | Flange Bolt Set Item | lng-flange-bolt | 1900× | 1,900 | · | part |
| 9.4 | Pipe Clamp | lng-pipe-clamp | 1400× | 1,400 | · | part |
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Where the dual-fuel two-stroke 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 |