| Hyundai Heavy Industries Co., Ltd Patent applications |
| Patent application number | Title | Published |
|---|
| 20120111258 | AIR CAVITY VESSEL HAVING LONGITUDINAL AND TRANSVERSE PARTITIONS - An air cavity vessel having longitudinal and transverse partitions is provided. The air cavity vessel, which injects air into the bottom thereof to form air layers in order to reduce resistance of the vessel, includes transverse partitions partitioning the bottom in a transverse direction, longitudinal partitions partitioning the bottom in a longitudinal direction, spatial areas defined in a grid pattern by the transverse partitions and the longitudinal partitions, an air supply unit installed in a forebody of the vessel and supplying compressed air into the spatial areas, and a compressor for supplying the compressed air to the air supply unit. Thereby, multiple air layers are formed on a bottom flat area on a small scale. | 05-10-2012 |
| 20110259302 | APPARATUS FOR PREVENTING CAVITATION DAMAGE TO A DIESEL ENGINE FUEL INJECTION PUMP - The present invention relates to an apparatus for preventing cavitation damage to a diesel engine fuel injection pump, wherein a pressure control valve for shutting a barrel port is mounted on a deflector or a barrel of the fuel injection pump to increase the fuel pressure in the barrel port during an early stage of fuel compression. This prevents fountain-type or jet-type cavitation from occurring before and after the opening of the barrel port during a late stage of fuel compression, thereby preventing corrosion damage caused by cavitation occurring mainly in a plunger and the barrel port of the fuel injection pump. The key technical features of the present invention are for an apparatus for preventing cavitation damage to a diesel engine fuel injection pump having a fuel intake valve and the barrel port for the inflow and outflow of fuel, respectively, comprising: a valve member mounted on the barrel port to shut the barrel port during an early stage of fuel compression performed by the upward movement of the plunger to increase the pressure in the barrel port; a valve housing installed in the deflector or the barrel of a pump housing to support the valve member; and a pressure control valve constituted by a spring interposed between the valve member and the valve housing to elastically support the valve member. The barrel port is shut to increase the pressure therein during the early stage of fuel compression, and thus preventing cavitation caused by the pressure difference between the barrel port and a pump chamber before and after the opening of the barrel port during the late stage of fuel compression. When the pressure of fuel in the barrel port exceeds a level higher than an open level, the barrel port opens to discharge fuel. | 10-27-2011 |
| 20090072940 | SYSTEM FOR PREVENTING RUPTURE OF TRANSFORMER TANK - Disclosed herein is a rupture prevention system, which increases a limit of the deformation of a transformer tank, thus primarily preventing a sudden rise in pressure, and which increases the number of rupture disc per unit area, thus preventing the rupture of the tank wherever the arc is generated in tank. The system includes a support part installed in the transformer tank and supporting a shielding plate so that it is not directly attached to the transformer tank. A plurality of rupture discs is mounted to pipes extending outwards from the transformer tank, and is ruptured when pressure in the transformer tank reaches a predetermined pressure level. A plurality of relief tanks is vertically installed at a position neighboring the transformer, and is coupled to the pipes. Further, an oil gauge is mounted at a lower position in each of the relief tanks, and generates a signal when the insulating oil flows into the relief tank. | 03-19-2009 |
