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Dual-Fuel Propulsion Plant

Assembly

Twin-skeg plant: two 5-cylinder dual-fuel two-stroke engines burning boil-off gas at 300 bar, each driving a fixed-pitch propeller through a short shaftline. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Dual-Fuel Propulsion Plant parts and their functions

10 top-level parts · 12,740 parts in total · full bill of materials below
Dual-Fuel Propulsion Plant parts diagram: 1 dual-fuel two-stroke engine, 2 fixed-pitch propeller, 3 propeller shaft section, 4 high-pressure LNG pump, 5 gas valve unit, 6 gas combustion unit, 7 cryogenic valve, 8 pipe spool, 9 cryogenic pipe support, 10 flange bolt set item. 12,740 parts in 10 top-level items.
Dual-Fuel Propulsion Plant parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Dual-Fuel Two-Stroke Engine 9 parts 2× 5G70ME-GI class, ~12.4 MW each
2 Fixed-Pitch Propeller 2× Fixed-pitch, ~8.8 m diameter
3 Propeller Shaft Section 6× Intermediate and tail shafts
4 High-Pressure LNG Pump 3× 300 bar fuel-gas supply pumps
5 Gas Valve Unit 2× Gas valve trains feeding each engine
6 Gas Combustion Unit 1× Gas combustion unit for excess boil-off
7 Cryogenic Valve 340× Fuel-gas system double-walled line valves
8 Pipe Spool 650× Fuel-gas and cooling spools
9 Cryogenic Pipe Support 900× Fuel-gas and cooling pipe supports
10 Flange Bolt Set Item 3300× Fuel-gas system flange bolting

3D model

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Build & assembly graph

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Bill of materials for Dual-Fuel Propulsion Plant

10 top-level lines · 37 rows shown · 12,740 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Dual-Fuel Two-Stroke Engine 9 parts lng-main-engine 2× 2 3,768 assembly
1.1 Cylinder Unit 9 parts lng-cylinder-unit 5× 10 13 assembly
1.1.1 Cylinder Liner lng-cylinder-liner 1× 10 · part
1.1.2 Piston Crown & Skirt lng-piston-crown 1× 10 · part
1.1.3 Piston Ring lng-piston-ring 4× 40 · part
1.1.4 Crosshead & Connecting Rod lng-crosshead 1× 10 · part
1.1.5 Exhaust Valve lng-exhaust-valve 1× 10 · part
1.1.6 Gas Injection Valve lng-gas-injector 2× 20 · part
1.1.7 Pilot Fuel Injector lng-pilot-injector 1× 10 · part
1.1.8 Cylinder Cover lng-cylinder-cover 1× 10 · part
1.1.9 Fastener Set fastener-set 1× 10 · part
1.2 Engine Bedplate lng-engine-bedplate 1× 2 · part
1.3 Crankshaft lng-crankshaft 1× 2 · part
1.4 Engine Tie Rod lng-engine-tie-rod 60× 120 · part
1.5 Main Bearing Shell lng-main-bearing 6× 12 · part
1.6 Turbocharger lng-turbocharger 2× 4 · part
1.7 Engine Service Pump 5 parts lng-engine-pump 4× 8 7 assembly
1.7.1 Pump Casing lng-pump-casing 1× 8 · part
1.7.2 Pump Impeller lng-pump-impeller 1× 8 · part
1.7.3 Ball Bearing ball-bearing 2× 16 · part
1.7.4 Oil Seal oil-seal 2× 16 · part
1.7.5 Fastener Set fastener-set 1× 8 · part
1.8 Fuel Injection Pump lng-fuel-injection-pump 5× 10 · part
1.9 Engine Pipe Bundle 4 parts lng-engine-pipe-bundle 1× 2 3,600 assembly
1.9.1 Pipe Spool lng-pipe-spool 240× 480 · part
1.9.2 Double-Wall Gas Pipe lng-double-wall-gas-pipe 60× 120 · part
1.9.3 Flange Bolt Set Item lng-flange-bolt 1900× 3,800 · part
1.9.4 Pipe Clamp lng-pipe-clamp 1400× 2,800 · part
2 Fixed-Pitch Propeller lng-propeller 2× 2 · part
3 Propeller Shaft Section lng-shaft-section 6× 6 · part
4 High-Pressure LNG Pump lng-hp-pump 3× 3 · part
5 Gas Valve Unit lng-gas-valve-unit 2× 2 · part
6 Gas Combustion Unit lng-gcu 1× 1 · part
7 Cryogenic Valve lng-cryo-valve 340× 340 · part
8 Pipe Spool lng-pipe-spool 650× 650 · part
9 Cryogenic Pipe Support lng-pipe-support 900× 900 · part
10 Flange Bolt Set Item lng-flange-bolt 3300× 3,300 · part

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Where the dual-fuel propulsion plant is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

LNG Carrier

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 $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks