A 4-stroke engine in ships operates through intake, compression, power, and exhaust strokes to generate propulsion.

Key engine parts include the cylinder block, pistons, crankshaft, valves, camshaft, fuel injectors, and connecting rods.

It is efficient and widely used in marine applications for its reliability and power output.

4 Stroke Engine in Ship Key Specifications:

- Size: Typically ranges from 500 mm to 3,000 mm in bore diameter.

- Grade: Marine-grade diesel (ISO 8217) compliant.

- Viscosity: SAE 30 to SAE 50 for lubricating oil.

- Buoyancy: Not applicable (engine is fixed within the ship's hull).

- Material: Cast iron or steel for engine block; aluminum alloys for pistons.

Engine Parts and Properties:

- Cylinder Head: Cast iron or aluminum alloy.

- Piston: Aluminum alloy with chrome-plated rings.

- Crankshaft: Forged steel with high fatigue resistance.

- Connecting Rod: High-strength steel or titanium alloy.

- Valves: Stainless steel or nickel-chromium alloy.

- Camshaft: Hardened steel or alloy steel.

- Bearings: Copper-lead or tin-aluminum alloy.

- Gaskets: Multi-layer steel (MLS) or graphite-coated.

- Turbocharger: Nickel-based superalloy housing.

- Cooling System: Copper-brass or aluminum radiators.

- Fuel Injectors: High-pressure hardened steel.

- Exhaust Manifold: Cast iron or stainless steel.