A watercraft has a deck; central, left and right pods connected to a bottom of the deck; and a helm assembly disposed on the deck. The central pod is laterally centered relative to the deck. The central pod has a central hull defining a central tunnel, a motor connected to and disposed at least in part in the central hull, and a jet propulsion system disposed at least in part in the tunnel and operatively connected to the motor. The left pod is disposed at a left of the central pod and is laterally spaced from the central pod. The left pod has a left hull that is narrower than the central hull. The right pod is disposed at a right of the central pod and is laterally spaced from the central pod. The right pod has a right hull that is narrower than the central hull.

The present invention relates to a curve-combined square pressure tank with which curves are combined so as to maintain internal high pressure, improve space efficiency, and reduce the weight thereof, and to a pressure tank, in which planes and curves are combined, formed by connecting flat plate members and curved members, having a plurality of aligned tension members for connecting the flat plate members facing each other, and having stress buffer parts formed at connection parts of the flat plate members and the curved members so as to enable internal pressure to be maintained.

A floating vessel for use as a hydrogen and/or ammonia floating production storage and offloading vessel comprising an inner hull wall; at least two bulkheads, wherein the at least two bulkheads are disposed within the inner hull wall, forming at least three separate storage spaces; a series of cross-members, wherein the series of cross members are disposed between the at least two bulkheads to provide support and stability to the at least two bulkheads; and a deck, wherein the deck is supported by and disposed upon the at least two bulkheads; and wherein the at least three separate storage spaces are configured to contain gasses and/or liquids.

An improved deck fill for use according to the present invention comprises a vented deck fill with a body, a fuel throat, a vent throat, and a single pressure regulating valve. Use of the single pressure regulating valve increases engine performance by reducing a pressure necessary to push the single pressure regulating valve into an open configuration. This disclosure additionally relates to a method for the installation of the vented deck fill by way of a single hole installation. This is facilitated by an elliptical circumference of the vent throat and fuel throat, thereby allowing the vent throat and fuel throat to be closer together, reducing the necessary size for the single installation hole. This disclosure relates to non-vented deck fills utilizing a floating puck assembly, and to a low-profile fuel cap for vented and non-vented deck fills utilizing a push button latch and hinge clearance scallops.

This ship includes a ship body, a fuel tank chamber, a stern-side engine room, a bow-side engine room, a main fuel line and a sub-fuel line, and a pump mechanism. The main fuel line connects a fuel tank, a stern-side power generation unit, and a bow-side power generation unit through the bow-side engine room. The sub-fuel line connects at least the fuel tank and the stern-side power generation unit, and is disposed through a section different from the bow-side engine room through which the main fuel line passes. The pump mechanism selectively feeds fuel into the main fuel line or the sub-fuel line from the fuel tank.

A dual-fuel tank houses one or more compressed natural gas (CNG) vessels and one or more diesel fuel vessels. The diesel fuel vessels are generally disposed laterally outwardly from the CNG vessels to provide a buffer that protects the CNG vessels from side impacts. The dual-fuel tank may be retrofit onto a diesel locomotive in place of the locomotive's diesel fuel tank to convert the locomotive into a dual-fuel locomotive. The dual-fuel tank may be provided in a ship.

A ship comprises an engine; a first self-heat exchanger which heat-exchanges boil-off gas discharged from a storage tank; a multi-stage compressor which compresses, in multi-stages, the boil-off gas that passed through the first self-heat exchanger after being discharged from the storage tank; a first decompressing device which expands one portion of the boil-off gas compressed by the multi-stage compressor; a second self-heat exchanger which heat-exchanges the other portion of the boil-off gas compressed by the multi-stage compressor, with the boil-off gas expanded by the first decompressing device; and a second decompressing device which expands the boil-off gas pre-cooled by the second self-heat exchanger and cooled by the first self-heat exchanger, wherein the first self-heat exchanger uses the boil-off gas discharged from the storage tank as a refrigerant for cooling the boil-off gas that passed through the second self-heat exchanger after being compressed by the multi-stage compressor.

The invention relates to a marine surface vessel (1), in particular a passenger ship, extending in a longitudinal direction between a bow (2) and a stern (3), comprising least one power providing apparatus (6) operatively connected to at least one propulsion unit (7) for propulsion of the vessel, a fuel tank arrangement (8) for storing gaseous fuel in a liquid phase, connected to the power providing apparatus (6) by means of a gas supply system for running the power providing apparatus (6), and a plurality of decks (91-98) distributed vertically, one above the other, the fuel tank arrangement (8) comprising two tank sub-arrangements (81, 82), each tank sub-arrangement comprising at least one gaseous fuel tank (811, 812, 821, 822), each fuel tank extending vertically past at least two of the decks (92-95), and at least two of the decks (92-95), past which the fuel tanks (811, 812, 821, 822) extend, each presents a passageway (941) extending between the tank sub-arrangements (81, 82).

The spilled fuel collection system is configured for use with the fuel vent of a vessel. The fuel vent is designed to release gas and fuel during an event selected from the group consisting of: a) a build-up of gas pressure within the fuel tank; and, b) overfilling the fuel tank with fuel. The spilled fuel collection system is an accessory that captures fuel and fuel vapors that escape through the fuel vent of a vessel during the fueling process. The spilled fuel collection system comprises a transportable fuel container, a hose, and a quick connect fitting. The transportable fuel container captures the fuel and vapor that escape through the fuel vent. The hose transports the escaped fuel and vapor from the fuel vent into the transportable fuel container. The quick connect fitting secures the hose to the fuel vent.

The present invention belongs to the field of technologies aimed at production units with difficulties in dispersing gases from pressure relief systems. More specifically, the present invention relates to a gas dispersion intensifier assembly for a pressure relief system, which comprises: at least one blower; and a gas dispersion pipe with a gas outlet nozzle; wherein at least one blower is arranged externally and in the vicinity of the gas outlet nozzle, and projects an air flow toward the gas flow expelled by the gas outlet nozzle.