Abstract: The present invention relates to an arrangement in fuel cell apparatuses for processing the leakage gases of fuel cells, the fuel cell apparatus comprising at least a fuel cell unit, the fuel cells of which include an anode side and a cathode side and an electrolyte therebetween and in which fuel cell apparatus there is at least a fuel inlet into the anode side and an oxygen-containing gas inlet into the cathode side. According to the invention the fuel cell unit is surrounded by a fire-proof casing provided with a combustion space, the combustion space of the casing being combined with an inlet for introducing oxygen-containing gas into the combustion space.

Abstract: An arrangement in the fuel injection system for controlling the fuel injection, the arrangement comprising a body part with a space arranged therein, through which space the fuel to be injected flows during operation, the space further having an inlet opening and an outlet opening therein. The arrangement further comprises a piston means, arranged movably in the space and a flow path for creating a flow connection between the fuel inlet and the fuel outlet openings. The flow path comprises at least one throttling portion opening into the space of the body part, the cross-sectional flow area of the throttling portion being defined by the relative positions of the piston means and the body part.

Abstract: The present invention relates to apparatuses for detecting fuel pressure in internal combustion engines. The invention especially relates to internal combustion engine applications in which fuel reaches a high pressure. The apparatus according to the invention is a simple switch apparatus. In the apparatus the fuel pressure moves a piston causing a switching operation in the apparatus, which in turn can be detected by means of a separate detector.

Abstract: A propulsion system for a marine vessel is provided with at least one skeg in its hull and with a first propulsion device provided at the stern area of the vessel for providing propulsion power. A second propulsion device is located in connection with the skeg and comprises a system for changing the direction of its thrust effect.

Abstract: A fuel cell arrangement for transporting gases to a number of fuel cell units and for exhausting reaction products from the fuel cell unit, the flow arrangement comprising a number of fuel cell units and a fastening platform onto which each fuel cell unit is supported to. The fastening platform comprises a number of separate flow channels via which the heat exchanger apparatus is in flow connection with each fuel cell unit.

Abstract: A catalytic converter unit includes walls defining a treatment zone, first and second transfer zones and at least one through-flow zone, which zones are adjacent each other. The walls include a partition wall that divides the treatment zone into first and second segments. The first transfer zone is plugged upstream of the partition wall and the second transfer zone is plugged downstream of the partition wall. A catalytic converter element is disposed in the first segment of the treatment zone, spaced from the partition wall. The first segment of the treatment zone is in flow communication with the first transfer zone and the second segment of the treatment zone is in flow communication with the second transfer zone.

Abstract: A marine vessel includes a hull and has at least one load carrying facility defined by at least one loading space with a given height, a given width and a given length, whereby the loading space is provided on a bulkhead deck, and a propulsion arrangement, which includes at least one steerable thruster unit connected by a shaft arrangement to a drive means. In order to provide better access to the bulkhead deck for loading and unloading the marine vessel, the steerable thruster unit is arranged below the bulkhead deck and the drive means is arranged above the loading space. The shaft arrangement comprises a substantially vertical shaft section extending from the drive means above the loading space through the given height of the loading space and to the steerable thruster unit below the bulkhead deck.

Abstract: A catalytic converter unit includes walls defining a treatment zone, first and second transfer zones and at least one through-flow zone, which zones are adjacent each other. The walls include a partition wall that divides the treatment zone into first and second segments. The first transfer zone is plugged upstream of the partition wall and the second transfer zone is plugged downstream of the partition wall. A catalytic converter element is disposed in the first segment of the treatment zone, spaced from the partition wall. The first segment of the treatment zone is in flow communication with the first transfer zone and the second segment of the treatment zone is in flow communication with the second transfer zone.

Abstract: An arrangement in a fuel injection system for controlling the fuel injection includes a body part having a space, through which the fuel to be injected during operation flows, and a fuel inlet opening and an outlet opening opening into the space. A piston is arranged movably inside the space, the piston having a channel arranged therein for creating a flow connection between the fuel inlet opening and the outlet opening, whereby the piston divides the space into a first part connected with the inlet opening and a second part connected with the outlet opening. A spring creates a force acting on the piston in a direction opposite to that of the main fuel flow. The piston and the body part are formed so that when the piston is in the end adjacent the fuel inlet opening it delimits a third space, the volume of which depends on the mutual positions of the piston and the body part.

Abstract: A vibration damper comprising a body part via which the damper can be fastened to the object to be dampened, an oscillating piece movably arranged in the space of the body part and fastened by at least one spring to the body part, the oscillating piece consisting of more than one part, removably fastened to each other. The invention also relates to a method of producing a vibration damper and an arrangement of reducing the vibration in a piston engine.

Abstract: A gas supply arrangement of a marine vessel being adapted to carry liquefied gas in its cargo tank having an ullage space section and a liquid phase section, and to utilize the cargo as fuel to provide power for the vessel, the arrangement comprising a first gas supply line which connects an ullage space section of the cargo tank and a gas main supply line and which is provided with a compressor for raising the pressure of the gas to an adequate level, a second gas supply line which connects liquid phase section of the cargo tank and the gas main supply line and which is provided with at least a pump for raising the pressure of the liquid gas and for pumping it forward. The second gas supply line is provided with a gas reservoir having an ullage space section and liquid phase section, which reservoir is connected to the liquid phase section of the cargo tank by a first duct section of the second gas supply line and to the gas main supply line by a second duct section of the second gas supply line.

Abstract: A piston engine is operated by pressurizing combustion air to a pressure above ambient pressure and adding water to the combustion air, and supplying the pressurized combustion air to which water has been added to a combustion chamber. An emulsion of fuel and water is sprayed into the combustion chamber. A desired rate of supply of water to the combustion chamber is determined and, in the event that the desired rate of supply of water changes, the rate of supply of water to the combustion chamber is adjusted by regulating the addition of water to the combustion air.

Abstract: A marine vessel has at least two engines installed in separate respective engine compartments that are positioned substantially horizontally adjacent to each other and are separated from each other by a wall structure defining at least one opening provided with a floodgate arrangement. The floodgate arrangement includes a gate device that is movable between a closed position, in which the gate device blocks the opening, and an open position, in which the gate device frees the opening, and a buoyancy assisted movement actuation device for moving the gate device from its closed position to its open position under the influence of rising water level.

Abstract: A fuel injection arrangement, which comprises a fuel source and a fuel nozzle connected thereto, including a fuel chamber and a needle valve arrangement in connection with the fuel chamber for controlling the fuel injection and an arrangement for bringing about a force effect on the valve of the needle valve arrangement in the closing direction thereof; a fuel control arrangement by means of the different switching positions of which, the fuel flow connection is connectable between the fuel source and the fuel chamber of the fuel nozzle as well as between the fuel source and the arrangement for bringing about a force effect, in which the fuel control arrangement comprises a mechanical force unit for changing its switching positions.

Abstract: A barge unit includes LNG receptacle and a first power generation apparatus including a first combustion engine that is operated at least partly by LNG boil-off gas and a first generator that is driven by the first combustion engine. A tug unit includes a propulsion system and a second power generation apparatus for providing power to the propulsion system. In a first operating mode of the barge and tug units the tug unit is connected to the barge unit for propelling the barge unit and the propulsion system of the tug unit is powered at least partly by the first power generation apparatus.

Abstract: Arrangement in connection with a diesel engine comprising an air supply system for the diesel engine for supplying suction air to the engine from the environment, the air supply system comprising at least a channel arrangement, a compressor and a heat exchanger for suction air and a cooling circuit for the diesel engine, to which circuit at least one heat exchanger is connected. The heat exchanger connected to the cooling circuit, which recovers waste heat from the diesel engine, is arranged to evaporate water by the heat received from the cooling circuit. The invention also relates to a corresponding method.

Abstract: An arrangement for lubricating a piston engine comprising a source of lubrication medium, first pressure elevating means for elevating the pressure of the lubricating medium, and first ducting means for delivering the lubricating medium to lubrication targets of the engine. The arrangement comprises at least one second ducting means which is separate from the first ducting means and which is provided with a valve arrangement controllable by external control for controlling flow of lubricating medium in the second ducting means. The second ducting means is connectable in now communication with a source of lubricating medium through the valve arrangement. The invention relates also to a corresponding method.

Abstract: A marine vessel includes a rudder support structure attached to its hull and a rudder device attached to the rudder support structure in a manner allowing pivotal movement of the rudder device relative to the rudder support structure. A first drive train includes a first propeller shaft mounted in the hull and extending from the hull. A first propeller unit is attached to the first propeller shaft and is positioned forward of the rudder device. A second drive train includes a second propeller shaft that is mounted rotatably in the rudder support structure and a second propeller unit is attached to the second propeller shaft. The second propeller unit is aft of the first propeller unit and coaxially aligned therewith.

Abstract: A fuel system shut-off valve includes a valve body bounding a fuel space, the valve body having an inlet opening and an outlet opening communicating with the fuel space. A piston assembly in the fuel space includes a main piston member that is movable relative to the valve body and an auxiliary piston member that is movable relative to the main piston member. The piston assembly either allows or prevents fuel flow through the valve from the inlet opening towards the outlet opening depending on the position of the auxiliary piston member. A force member urges the piston assembly towards the inlet opening.