Diesel engines are widely used in large marine vessels due to their reliability, fuel efficiency, and ability to operate on heavy fuels.

Marine boilers are used to generate steam, which is then utilized to drive steam turbines or provide heat for various purposes on board the vessel.

Heavy fuel oil (HFO) is a type of residual fuel commonly used in marine diesel engines due to its low cost and high energy density.

Turbochargers are used in marine diesel engines to improve engine efficiency by increasing the amount of air supplied to the cylinders, resulting in more complete combustion.

Marine gearboxes are used to transmit power from the engine to the propeller, allowing for efficient transfer of power and control of propeller speed.

Outboard motors are commonly used in small boats and recreational vessels due to their portability, ease of maintenance, and ability to provide maneuverability.

Marine condensers are used to cool engine components, such as the steam turbine, by condensing the steam back into water.

Natural gas is considered to be a more environmentally friendly fuel for marine vessels due to its lower emissions of pollutants, such as sulfur oxides and particulate matter.

Marine fuel injectors are used to inject fuel into the engine cylinders at the appropriate time and pressure, ensuring efficient combustion.

Diesel-electric propulsion systems are commonly used in large cruise ships and passenger vessels due to their flexibility, efficiency, and ability to provide redundancy.

Marine economizers are used to recover heat from exhaust gases and transfer it to the boiler feedwater, improving the overall efficiency of the power plant.

Natural gas is commonly used in gas turbine marine engines due to its high energy density, low emissions, and ability to provide quick acceleration.

Marine propellers are used to convert the rotational motion of the engine or motor into thrust, propelling the vessel through water.

Gas turbine propulsion systems are commonly used in military vessels and high-speed crafts due to their high power-to-weight ratio, quick acceleration, and ability to operate on various fuels.

Marine air compressors are used to supply compressed air for various systems on board the vessel, such as starting engines, operating pneumatic tools, and charging air tanks.