Acqua Caldaia Bassa
A hazardous boiler condition where water level falls below the minimum safe mark, risking tube overheating, boiler damage, or explosion.
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Engineering
Browse Engineering terms for maritime professionals.
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Acqua di Raffreddamento Camicia
The fresh water circulating through the engine’s cylinder jacket to absorb heat and prevent overheating during operation.
View termAlimentazione Olio Cilindri
The controlled supply of lubricating oil to the main engine cylinder liners, essential for reducing friction and wear, as specified by engine manufacturer and class.
View termAllagamento Sala Macchine
The presence or rapid ingress of water in the engine room spaces, posing a serious risk to machinery and vessel safety, requiring emergency response and reporting under SOLAS protocols.
View termAllarme Acqua di Sentina
An alert indicating the presence of excess water in the bilge spaces, often requiring automatic or manual pumping, and indicating possible leak or flooding, as per MARPOL and class regulations.
View termAllarme Apparecchio di Governo
A warning signal indicating malfunction or abnormal condition in the steering gear system, requiring immediate crew investigation to ensure safe navigation and comply with SOLAS Chapter II-1.
View termAllarme Sala Macchine
An audible and/or visual signal in the engine room, indicating an abnormal or hazardous condition in machinery, systems, or parameters that requires prompt crew attention according to the ship’s alarm management procedures.
View termArresto caldaia ausiliaria
The complete stopping of an auxiliary boiler on board, including secure isolation and safety checks, typically during port stay or upon order.
View termArresto carburante d’emergenza
A safety device or procedure for rapidly stopping fuel supply to machinery or tanks in case of fire or other emergencies.
View termArresto di Sicurezza Motore
An automatic or manual action that stops the engine to prevent damage or hazard when critical parameters exceed safe limits, as mandated by SOLAS and machinery safety systems.
View termAspirazione Sintina d'Emergenza
A designated suction line and valve in the engine room bilge system used only in emergencies to rapidly remove water from flooded compartments, as required by SOLAS regulations.
View termAvviamento Dipendente dal Carico
An automatic function of the ship’s power management system that starts or stops auxiliary engines or generators based on electrical load demand, per SOLAS and class requirements.
View termAvviamento Generatore d’Emergenza
The procedure to initiate the ship's emergency generator to supply critical electrical power during a main blackout or failure of the main power supply, as required by SOLAS and vessel emergency protocols.
View termAvviamento Motore Ausiliario
The operation to start a ship’s auxiliary engine, which provides electrical power or essential services independently of the main propulsion engine, typically performed before arrival, departure, or critical shipboard operations.
View termBypass Filtro Carburante
A mechanism allowing fuel to flow around a clogged filter element to maintain engine operation in emergencies, potentially introducing unfiltered fuel.
View termCaldaia Gas di Scarico
A heat recovery unit using main engine exhaust gases to generate steam for shipboard heating or auxiliary systems, integral to energy management under MARPOL and SOLAS.
View termCarburante Alta Pressione
Fuel oil pressurized to high levels for injection into main engine cylinders, delivered by high-pressure pumps as specified by engine manufacturer and SOLAS for efficient combustion.
View termCompressore aria avviamento
A compressor that supplies high-pressure air for starting main and auxiliary engines, essential for engine readiness and maneuvering operations.
View termContatore giri albero
A device or system that records the number of revolutions of the propulsion shaft, providing critical speed and distance data.
View termControlavaggio Automatico
A system that automatically reverses flow through filters or strainers to remove debris and maintain performance without manual intervention.
View termControllo Motore Principale
The central console or system used to monitor and operate the ship’s main propulsion engine, including remote start, stop, RPM, alarms, and critical parameter displays, typically located in the engine control room or bridge.
View termDifferenziale Intercooler
The pressure or temperature difference measured across the intercooler, used to detect fouling or blockages affecting engine performance.
View termDistributore Aria di Avviamento
A mechanical device that controls the timing and sequence of starting air supplied to engine cylinders during main engine start-up, in compliance with class and manufacturer requirements.
View termDosaggio automatico caldaia
A system that automatically injects water treatment chemicals into the boiler feedwater to control scale and corrosion, ensuring efficient and safe operation.
View termElenco Macchinari Critici
An official document or database on board identifying all essential machinery whose failure would significantly affect vessel safety, navigation, or pollution prevention, maintained as per ISM and class rules.
View termElica a passo variabile
A propeller with blades whose pitch can be adjusted while running, allowing for variable thrust and improved maneuverability without changing engine speed.
View termEsclusione Cilindro
A control action or device used to disable fuel supply to a cylinder, usually for maintenance or troubleshooting, while engine is running.
View termFiltro Aria Avviamento
A filter installed in the starting air system to remove contaminants from compressed air before it reaches engine cylinders for starting.
View termFunzionamento a Basso Carico
Operating main engines or generators at reduced output, often during harbor stay or maneuvering, requiring special monitoring to prevent issues like incomplete combustion.
View termFunzionamento del soffiante fuliggine
The process of using a soot blower system to remove accumulated soot from boiler tubes or exhaust gas economizers, ensuring efficient heat transfer and preventing fire hazards.
View termGeneratore Acqua Dolce
A shipboard device that produces potable freshwater from seawater using evaporation and condensation, essential for crew and machinery needs, and subject to MARPOL and class guidelines.
View termGeneratore di gas inerte
A shipboard unit that produces inert gas, primarily used on tankers to maintain a non-flammable atmosphere in cargo tanks, reducing the risk of explosion.
View termGestione Automatica della Potenza
A computerized system on board ships that monitors and optimizes power generation and distribution automatically, ensuring efficiency and compliance with class requirements.
View termGestione Bruciatore Caldaia
The control and monitoring of burner operations on marine boilers to ensure safe and efficient ignition, combustion, and shut-down sequences.
View termGuardia Sala Macchine
The assigned period when crew are stationed in the engine room to monitor, operate, and respond to machinery and alarms, in accordance with SOLAS and engine room management procedures.
View termGuarnizione Tubo Poppa
A sealing device at the exit point of the ship’s propeller shaft through the hull, preventing water ingress and oil leakage, and critical for propulsion integrity.
View termImpostazione Velocità Motore
The selected rotational speed at which a ship’s engine is set to operate, typically determined by bridge orders for maneuvering or voyage.
View termIndicatore Motore Principale
An instrument that displays key operational parameters of the main engine, such as load, RPM, and cylinder pressures, aiding performance monitoring.
View termInterruttore di Arresto di Emergenza
A manually operated control that immediately halts machinery or electrical equipment in emergencies to prevent damage, fire, or injury.
View termInversione motore principale
A maneuver in which the main engine’s rotation direction is reversed, allowing the ship to go astern or stop.
View termIsolamento Sala Macchine
The process or system of segregating the engine room from other compartments to contain hazards such as fire, flooding, or toxic gas.
View termLimitazione potenza dell’albero
A set operational restriction on the maximum shaft power output, typically to comply with EEXI and MARPOL Annex VI energy efficiency regulations.
View termLivello Serbatoio Deaeratore
The measured height of water within the deaerator tank, critical for ensuring proper removal of dissolved gases from boiler feedwater.
View termManutenzione Turbocompressore
Scheduled inspection, cleaning, and servicing of the engine turbocharger to ensure optimal performance and prevent breakdown, as per manufacturer’s recommendations and class rules.
View termModalità Controllo Plancia
A mode in which the propulsion and critical machinery are operated directly from the bridge, with command transferred from the engine control room for maneuvering or restricted navigation.
View termMonitor Scarico Olio
An electronic device used to measure and control oil content in discharged water, ensuring compliance with MARPOL and pollution prevention standards.
View termOlio cuscinetto principale
Lubricating oil supplied to the main engine's main bearings, essential for reducing friction and preventing overheating or seizure.
View termOlio Riduttore
Lubricating oil specifically formulated for use in reduction gearboxes, ensuring smooth power transmission and preventing gear wear or overheating.
View termOmogeneizzatore Olio Combustibile
A machine that breaks down asphaltene clusters and ensures uniform mixing of fuel oil, improving combustion quality and reducing sludge formation.
View termPannello controllo propulsione
The main interface on the bridge or in the engine room for controlling the vessel’s propulsion system, including speed, direction, and emergency stop.
View termPannello generatore di emergenza
The control interface for the ship's emergency generator, enabling monitoring, activation, and shutdown of emergency electrical power during critical situations.
View termPannello Rilevazione Gas
A monitoring system that displays real-time readings from gas detectors, providing alarms if hazardous or flammable gas is detected in any compartment.
View termPannello telemetria motore
A central control panel for monitoring, displaying, and logging engine performance parameters and alarms in real-time, often located in the engine control room.
View termPompa di Lubrificazione di Riserva
A backup pump in the engine room that automatically or manually provides lubrication oil flow if the main pump fails, ensuring critical machinery protection.
View termPompa di Raffreddamento ad Acqua di Mare
A pump supplying seawater to coolers for cooling main and auxiliary machinery, essential for temperature regulation and engine safety.
View termPompa di riserva remota
A pump located outside the machinery space, operated remotely to provide emergency or backup fluid transfer capability.
View termPompa Zavorra Automatica
An automatic mode setting on the ballast pump, enabling the pump to start and stop based on tank level sensors or a central control system.
View termPosizione Cremagliera Carburante
The precise setting of the fuel control rack that determines the amount of fuel delivered to each cylinder of a diesel engine.
View termPosizione Leva di Manovra
The selected position of the manoeuvring lever on the bridge or engine control console, determining direction and speed of the main engine during vessel maneuvers.
View termPostazione di Controllo Locale
A designated engine room console enabling manual operation and monitoring of main engine or machinery independently of the remote (bridge) controls.
View termPresa di Forza
A mechanical device that transfers engine power to auxiliary equipment such as generators or pumps, typically via a shaft coupling.
View termProcedura cambio combustibile
A documented process for safely switching the ship’s fuel supply from one grade or type to another, often to comply with sulphur regulations in emission control areas.
View termProtezione Accoppiamento Pompa
A mechanical safety cover installed over rotating pump couplings to prevent injury and contain parts in the event of failure.
View termPurificatore Olio Lubrificante
A centrifugal device used on board to remove water and contaminants from lubricating oil, ensuring optimal engine operation and longevity.
View termQuadro Elettrico Principale
The primary electrical distribution panel on board controlling power supply to all vital systems and equipment, designed and operated per class and SOLAS rules.
View termRaffreddatore Aria di Lavaggio
A heat exchanger that cools scavenge air supplied to main engine cylinders, increasing air density and engine efficiency as per engine manufacturer and class requirements.
View termRaffreddatore Olio Idraulico
A heat exchanger used to maintain the temperature of hydraulic oil within safe operating limits for reliable system performance.
View termRegistratore dati motore
A device or software system that automatically records and stores key engine parameters for performance monitoring, diagnostics, and compliance documentation.
View termRilevatore di nebbia d’olio
A fixed device that continuously monitors and detects oil mist concentrations in engine crankcases to prevent explosions and ensure safe engine operation.
View termRipartizione del Carico Motore
The process of distributing electrical or mechanical load evenly between two or more engines or generators operating in parallel to optimize performance and prevent overloading, as per engine room procedures and automation systems.
View termRiscaldatore Olio Termico
A unit designed to heat thermal oil used as a medium for transferring heat to fuel tanks, cargo systems, or other shipboard processes.
View termSensore Temperatura Scarico
A device that measures and transmits the temperature of exhaust gases, crucial for monitoring engine performance and preventing overheating or thermal damage.
View termSequenza di Recupero Blackout
A prescribed procedure to restore shipboard power and restart essential systems after total electrical blackout, ensuring safe and rapid recovery of propulsion and control.
View termSerbatoio Aria Principale
A large pressure vessel that stores compressed air for main engine starting and other critical pneumatic systems, maintained as per SOLAS and class standards.
View termSerbatoio Doppio Fondo
A compartment at the bottom of the ship, between the inner and outer hull, used for ballast water, fuel, or as a safety measure against grounding.
View termSerbatoio Fanghi Purificatore
A tank designed to collect and store sludge and contaminants removed by fuel or lube oil purifiers before final disposal.
View termSerbatoio Olio Diesel
A dedicated tank for storing diesel oil, used for main engines, auxiliary engines, or emergency generators on board ship.
View termSerbatoio Pressione Idroforo
A pressurized tank in a ship’s fresh water system that maintains constant water pressure for domestic and service use throughout the vessel.
View termSincronizzazione generatore
The process of matching the voltage, frequency, and phase of an incoming generator to the busbar before connecting it in parallel with the existing power supply.
View termSistema Acqua di Raffreddamento
The network of pipes, pumps, and heat exchangers circulating water to remove excess heat from the main engine and auxiliary systems.
View termSistema di alleggerimento carico
An automated system that disconnects non-essential electrical loads to prevent total blackout when generator capacity is insufficient.
View termSistema di Controllo Remoto
A system allowing the operation and monitoring of shipboard machinery or equipment from a location other than the equipment itself, such as from the bridge or engine control room, compliant with SOLAS and class requirements.
View termSistema di Misurazione Serbatoi
An electronic or manual system for measuring liquid levels in ship tanks, such as fuel, ballast, or fresh water, to ensure safe operations and compliance with MARPOL and class.
View termSistema Interblocco Motore
An automated safety mechanism that prevents certain engine operations unless predefined conditions are satisfied, protecting equipment and personnel from unsafe procedures.
View termSovraccarico Motore Elettrico
A condition in which an electric motor draws current above its rated limit, risking overheating and possible failure unless protected by automatic tripping devices.
View termTelegrafo Motore Ponte
A signaling system between bridge and engine room, used to transmit engine speed and direction orders during ship maneuvering.
View termTemperatura Cuscinetto dell’Albero
The measured temperature of a ship’s main propulsion shaft bearing, monitored continuously to prevent overheating and possible bearing failure.
View termTest di Carico Generatore
A controlled procedure for verifying a generator’s capability to supply rated power by gradually applying electrical loads while monitoring performance parameters.
View termTest Portata Purificatore
An operational procedure to verify the flow rate and performance efficiency of the lubricating or fuel oil centrifugal purifier under specified conditions, as per manufacturer and class requirements.
View termTest risposta regolatore
A routine operational test to verify that the engine speed governor responds correctly to load changes, ensuring engine safety and performance.
View termTest Valvola di Non Ritorno
A procedural check to verify that a non-return (check) valve allows fluid flow in only one direction, preventing backflow in piping systems.
View termTrasferimento Olio Combustibile
The process of pumping fuel oil from one tank to another or to the engine, requiring strict adherence to MARPOL, safety, and spill prevention procedures.
View termValvola di Scarico Vapore
A valve that releases excess steam from boilers or turbines to prevent overpressure, often routed to the atmosphere or condenser in emergencies.
View termValvola di sfogo esplosione carter
A safety device fitted on engine crankcases that vents pressure and flame in the event of a crankcase explosion, reducing risk of damage and crew injury.
View termValvola Pozzetto Mare
A seacock or valve fitted at the hull sea chest, controlling seawater intake for engine cooling, ballast, or firefighting.
View termValvola Regolatrice di Pressione
A valve used to maintain a set pressure in a piping system by opening or closing in response to changes in upstream or downstream pressure.
View termVentilazione Sala Macchine
The provision and regulation of air flow to the engine room to remove heat, fumes, and ensure safe working conditions, as per SOLAS and class rules.
View termVentilazione sala pompe
The process and system for providing safe airflow in the pump room to prevent accumulation of explosive vapors and maintain a safe working environment.
View termViscosità dell’olio combustibile
The measure of a fuel oil’s resistance to flow, critical for engine injection and atomization; monitored and regulated in shipboard fuel systems.
View term