Ajuste de Velocidade do Motor
The selected rotational speed at which a ship’s engine is set to operate, typically determined by bridge orders for maneuvering or voyage.
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Alarme da Sala de Máquinas
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 termAlarme de Água de Porão
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 termAlarme do Sistema de 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 termAlimentação de Óleo do Cilindro
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 termAlívio de explosão do cárter
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 termAquecedor de Óleo Térmico
A unit designed to heat thermal oil used as a medium for transferring heat to fuel tanks, cargo systems, or other shipboard processes.
View termBaixo Nível de Água da Caldeira
A hazardous boiler condition where water level falls below the minimum safe mark, risking tube overheating, boiler damage, or explosion.
View termBomba de espera remota
A pump located outside the machinery space, operated remotely to provide emergency or backup fluid transfer capability.
View termBomba de Lastro Automática
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 termBomba de Lubrificação de Reserva
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 termBomba de Resfriamento com Água do Mar
A pump supplying seawater to coolers for cooling main and auxiliary machinery, essential for temperature regulation and engine safety.
View termCaldeira de Gás de Escape
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 termCombustível de Alta Pressão
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 termCompartilhamento de Carga do Motor
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 termCompressor de ar de partida
A compressor that supplies high-pressure air for starting main and auxiliary engines, essential for engine readiness and maneuvering operations.
View termContador de rotações do eixo
A device or system that records the number of revolutions of the propulsion shaft, providing critical speed and distance data.
View termControle do Motor Principal
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 termCorte de Cilindro
A control action or device used to disable fuel supply to a cylinder, usually for maintenance or troubleshooting, while engine is running.
View termCorte de combustível de emergência
A safety device or procedure for rapidly stopping fuel supply to machinery or tanks in case of fire or other emergencies.
View termDesligamento da caldeira auxiliar
The complete stopping of an auxiliary boiler on board, including secure isolation and safety checks, typically during port stay or upon order.
View termDesligamento de Segurança do Motor
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 termDesvio do Filtro de Combustível
A mechanism allowing fuel to flow around a clogged filter element to maintain engine operation in emergencies, potentially introducing unfiltered fuel.
View termDetector de névoa de óleo
A fixed device that continuously monitors and detects oil mist concentrations in engine crankcases to prevent explosions and ensure safe engine operation.
View termDiferencial do Intercooler
The pressure or temperature difference measured across the intercooler, used to detect fouling or blockages affecting engine performance.
View termDistribuidor de Ar de Partida
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 termDosagem automática da caldeira
A system that automatically injects water treatment chemicals into the boiler feedwater to control scale and corrosion, ensuring efficient and safe operation.
View termFiltro de Ar de Partida
A filter installed in the starting air system to remove contaminants from compressed air before it reaches engine cylinders for starting.
View termGerador de gás 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 termGerador de Água Doce
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 termGerenciamento Automático de Potência
A computerized system on board ships that monitors and optimizes power generation and distribution automatically, ensuring efficiency and compliance with class requirements.
View termGestão do Queimador da Caldeira
The control and monitoring of burner operations on marine boilers to ensure safe and efficient ignition, combustion, and shut-down sequences.
View termHomogeneizador de Óleo Combustível
A machine that breaks down asphaltene clusters and ensures uniform mixing of fuel oil, improving combustion quality and reducing sludge formation.
View termHélice de passo controlável
A propeller with blades whose pitch can be adjusted while running, allowing for variable thrust and improved maneuverability without changing engine speed.
View termIndicador do Motor Principal
An instrument that displays key operational parameters of the main engine, such as load, RPM, and cylinder pressures, aiding performance monitoring.
View termInterruptor de Parada de Emergência
A manually operated control that immediately halts machinery or electrical equipment in emergencies to prevent damage, fire, or injury.
View termInundação da Sala de Máquinas
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 termIsolamento da Sala de Máquinas
The process or system of segregating the engine room from other compartments to contain hazards such as fire, flooding, or toxic gas.
View termLimitação de potência do eixo
A set operational restriction on the maximum shaft power output, typically to comply with EEXI and MARPOL Annex VI energy efficiency regulations.
View termLista de Máquinas Críticas
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 termManutenção do Turboalimentador
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 termModo de Controle na Ponte
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 de Descarga de Óleo
An electronic device used to measure and control oil content in discharged water, ensuring compliance with MARPOL and pollution prevention standards.
View termNível do Tanque Desarator
The measured height of water within the deaerator tank, critical for ensuring proper removal of dissolved gases from boiler feedwater.
View termOperação de Baixa Carga
Operating main engines or generators at reduced output, often during harbor stay or maneuvering, requiring special monitoring to prevent issues like incomplete combustion.
View termOperação do soprador de fuligem
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 termPainel de controle de propulsão
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 termPainel de Detecção de Gás
A monitoring system that displays real-time readings from gas detectors, providing alarms if hazardous or flammable gas is detected in any compartment.
View termPainel de telemetria do motor
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 termPainel do gerador de emergência
The control interface for the ship's emergency generator, enabling monitoring, activation, and shutdown of emergency electrical power during critical situations.
View termPainel Principal de Distribuição
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 termPartida Dependente da Carga
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 termPartida do Gerador de Emergência
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 termPartida do Motor Auxiliar
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 termPosição da Alavanca de Manobra
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 termPosição da Cremalheira de Combustível
The precise setting of the fuel control rack that determines the amount of fuel delivered to each cylinder of a diesel engine.
View termPosto de Controle Local
A designated engine room console enabling manual operation and monitoring of main engine or machinery independently of the remote (bridge) controls.
View termProcedimento de troca de combustível
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 termProtetor de Acoplamento da Bomba
A mechanical safety cover installed over rotating pump couplings to prevent injury and contain parts in the event of failure.
View termPurificador de Óleo Lubrificante
A centrifugal device used on board to remove water and contaminants from lubricating oil, ensuring optimal engine operation and longevity.
View termRegistrador de dados do motor
A device or software system that automatically records and stores key engine parameters for performance monitoring, diagnostics, and compliance documentation.
View termReservatório Principal de Ar
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 termResfriador de Ar de Varredura
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 termResfriador de Óleo Hidráulico
A heat exchanger used to maintain the temperature of hydraulic oil within safe operating limits for reliable system performance.
View termRetrolavagem Automática
A system that automatically reverses flow through filters or strainers to remove debris and maintain performance without manual intervention.
View termReversão do motor principal
A maneuver in which the main engine’s rotation direction is reversed, allowing the ship to go astern or stop.
View termSensor de Temperatura do Escapamento
A device that measures and transmits the temperature of exhaust gases, crucial for monitoring engine performance and preventing overheating or thermal damage.
View termSequência de Recuperação de Apagão
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 termSincronização do gerador
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 de alívio de carga
An automated system that disconnects non-essential electrical loads to prevent total blackout when generator capacity is insufficient.
View termSistema de Controle 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 de Intertravamento do Motor
An automated safety mechanism that prevents certain engine operations unless predefined conditions are satisfied, protecting equipment and personnel from unsafe procedures.
View termSistema de Medição de Tanques
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 de Água de Resfriamento
The network of pipes, pumps, and heat exchangers circulating water to remove excess heat from the main engine and auxiliary systems.
View termSobrecarga de Motor Elétrico
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 termSucção de Porão de Emergência
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 termTanque de Fundo Duplo
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 termTanque de Lodo do Purificador
A tank designed to collect and store sludge and contaminants removed by fuel or lube oil purifiers before final disposal.
View termTanque de Pressão Hidrofórico
A pressurized tank in a ship’s fresh water system that maintains constant water pressure for domestic and service use throughout the vessel.
View termTanque de Óleo Diesel
A dedicated tank for storing diesel oil, used for main engines, auxiliary engines, or emergency generators on board ship.
View termTelégrafo de Ponte para Máquinas
A signaling system between bridge and engine room, used to transmit engine speed and direction orders during ship maneuvering.
View termTemperatura Mancal do Eixo
The measured temperature of a ship’s main propulsion shaft bearing, monitored continuously to prevent overheating and possible bearing failure.
View termTeste de Carga do Gerador
A controlled procedure for verifying a generator’s capability to supply rated power by gradually applying electrical loads while monitoring performance parameters.
View termTeste de resposta do regulador
A routine operational test to verify that the engine speed governor responds correctly to load changes, ensuring engine safety and performance.
View termTeste de Vazão do Purificador
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 termTeste de Válvula de Retenção
A procedural check to verify that a non-return (check) valve allows fluid flow in only one direction, preventing backflow in piping systems.
View termTomada de Força
A mechanical device that transfers engine power to auxiliary equipment such as generators or pumps, typically via a shaft coupling.
View termTransferência de Óleo Combustível
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 termVedação do Tubo de Popa
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 termVentilação da Casa de Máquinas
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 termVentilação da sala de bombas
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 termVigia da Casa de Máquinas
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 termViscosidade do óleo combustível
The measure of a fuel oil’s resistance to flow, critical for engine injection and atomization; monitored and regulated in shipboard fuel systems.
View termVálvula de Alívio de Vapor
A valve that releases excess steam from boilers or turbines to prevent overpressure, often routed to the atmosphere or condenser in emergencies.
View termVálvula do Caixa Mar
A seacock or valve fitted at the hull sea chest, controlling seawater intake for engine cooling, ballast, or firefighting.
View termVálvula Reguladora de Pressão
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 termÁgua de Resfriamento da Camisa
The fresh water circulating through the engine’s cylinder jacket to absorb heat and prevent overheating during operation.
View termÓleo de Redutor
Lubricating oil specifically formulated for use in reduction gearboxes, ensuring smooth power transmission and preventing gear wear or overheating.
View termÓleo do mancal principal
Lubricating oil supplied to the main engine's main bearings, essential for reducing friction and preventing overheating or seizure.
View term