44results about "Submarines" patented technology

A system and method utilizing compressed gas according to which the gas is compressed at a location above ground and transported to an underwater location. The gas is stored at the underwater location and later returned from the underwater location to the above-ground location for utilization as energy.

An autonomous underwater vehicle (AUV) for recording seismic signals during a marine seismic survey. The AUV includes a body having a base and sides; a propulsion system for guiding the AUV to a final target on the ocean bottom; a pump-jet connected to an inlet and plural base outlets, wherein the plural base outlets are distributed on the base; a processor connected to the pump-jet and configured to activate the pump-jet when the base in on the ocean bottom; and a seismic sensor configured to record seismic signals. The pump-jet has a first low speed so that water jets expelled at the plural base outlets fluidize the ocean bottom underneath the base and buries the AUV.

Provided is an apparatus for recovering and launching an unmanned aerial vehicle. The apparatus for recovering and launching the unmanned aerial vehicle includes a main body that includes a storage space in which the unmanned aerial vehicle is stored, an inclined platform that forms an inclined surface which is connected between a fixed bar fixed in the main body and a moving bar moved to an opened upper portion of the main body and collides with the unmanned aerial vehicle induced to approach a side of the main body, a band member of which one end is connected to the moving bar and the other end is rolled up in a roll shape and stored in the storage space of the main body, and a driving motor that rotationally drives a rotor circumscribed with the band member in a normal direction or reverse direction, so that the moving bar is moved with respect to the fixed bar, wherein the inclined surface is formed by unfolding the inclined platform, the unmanned aerial vehicle colliding with the inclined surface is recovered to the storage space, and then the inclined platform is folded.

Method and vessel for performing marine acoustic survey of a subsurface. The vessel includes a launching module configured to deploy an autonomous underwater vehicle (AUV) underwater; a recovery module configured to recover the AUV; a homing device mounted on the recovery module and configured to guide the AUV to the recovery module; and a management module connecting the launching module to the recovery module and configured to transport the AUV.

A submersible thruster, and methods of optimizing and using same, including selecting a motor with an efficiency of greater than 75 percent when operated at 250 rpm immersed in a pressure-resistant fluid, the motor having a drive shaft with a rotor and a stator matched to the rotor, the rotor and the stator being immersed in the pressure-resistant fluid and being separated by a gap less than or equal to 1 mm. The motor is disposed in a housing to isolate the motor components from a liquid environment. A rear portion of the drive shaft extends through a low-friction shaft seal beyond the housing to drive at least one propeller within the liquid environment. Movement of the drive shaft is constrained to a radial and axial play each of less than 0.75 mm. The method further includes operating the motor at less than 50 percent of peak power, wherein said thruster operates at greater than 30 percent end-to-end thrust efficiency within the liquid environment.

An underwater towing device, including an underwater towing assembly and a fixing mechanism of the underwater towing assembly. The underwater towing assembly includes a first floating body, a second floating body, and a third floating body. The fixing mechanism includes a fairlead carrier and two supports disposed on two sides of the fairlead carrier. The first floating body, the second floating body, and the third floating body are connected together via a fixing frame. The first floating body, the second floating body, and the third floating body have streamlined and bilaterally symmetrical shapes and all are hollow to accommodate experimental equipment. The first floating body is a cylinder having a drop-shaped horizontal cross-section. The upper part of the first floating body is provided with a buoyancy reserve tank having an elliptic horizontal cross-section.

The submarine is equipped with a fluid gas pressure container, in particular for storing liquid oxygen. The liquid gas pressure container is arranged within the pressure hull of the submarine and is surrounded by an outer pressure container which is likewise stored within the pressure hull of the submarine. A device is provided which on exceeding a predefined pressure within one pressure container leads fluid from the pressure container out of the pressure hull.

The invention provides a submarine device with an escape boat. The submarine device comprises a submarine body, wherein a built-in pipeline is arranged in the submarine body; a lifting bracket is arranged at the bottom of the built-in pipeline; an outlet is formed in one end of the built-in pipeline; an automatic lifting door is arranged at the outlet; the escape boat is arranged in the built-in pipeline; a lifting button is arranged at the automatic lifting door and is electrically connected with a control unit; the control unit is electrically connected with a GPS positioning device, the automatic lifting door, an alarm device, the lifting bracket and oxygen making devices; the GPS positioning device and the alarm device are arranged in the submarine body; the oxygen making devices are arranged in the submarine body and the escape boat; the control unit is electrically connected with a remote control terminal through a wireless transmitting and receiving device. The submarine device with the escape boat is novel in design and high in safety.

The submarine is equipped with a fluid gas pressure container, in particular for storing liquid oxygen. The liquid gas pressure container is arranged within the pressure hull of the submarine and is surrounded by an outer pressure container which is likewise stored within the pressure hull of the submarine. A device is provided which on exceeding a predefined pressure within one pressure container leads fluid from the pressure container out of the pressure hull.

A system and method for optical communication between multiple UUVs, more specifically, for leader-follower formations between UUVs. The system focuses on the characterization and modeling of a 1-dimensional and / or 3-dimensional light field produced from a light source mounted on a Leader UUV, which is detected by one or more follower UUVs. Communication algorithms are used to monitor the UUV's motion and orientation utilizing simulators, look up tables, and the like. A variety of detectors arrays can be used in a variety of wavelengths depending on the desired application.

Disclosed is a system and method for static and dynamic positioning or motion control of a marine structure by using real-time monitoring of at least one of a mooring line, marine environments, 6-dof movement of a marine structure, a tank state, a ship topside, the seabed, or their combinations. The static and dynamic real-time monitoring data of the mooring line is obtained and processed for positioning the marine structure or controlling and managing a motion thereof. Here, 1) a tension of a mooring line is measured by means of real-time monitoring of the mooring line, 2) various marine environment elements such as wind direction, wind speed, air humidity, atmospheric pressure, atmosphere temperature, cloud height, visibility, ocean wave, wave height, sea current speed, sea current direction, rain or the like are measured by means of real-time monitoring of the marine environments, 3) 6-dof movement of the marine structure is measured by means of real-time monitoring of the marine structure, 4) ullage and sloshing data of various tanks in the marine structure are measured by means of real-time monitoring of tank states, 5) damage and life of pipes, facilities or the like located at a ship topside of the marine structure are measured by means of real-time monitoring of the ship topside, 6) damage and life of umbilical cables, pipes, pumps and valves located on the seabed are measured by means of real-time monitoring of the seabed, and suitable static and dynamic positioning or motion control and management may be automatically performed based thereon.

A hydrogen compression system and a hydrogen compression method of the present invention suppress costs required for hydrogen compression and storage. The hydrogen compression system comprises a hydrogen storage chamber placed at a predetermined water depth in water to communicate with surrounding water; a hydrogen container filled with hydrogen gas by a lower pressure than a hydraulic pressure atthe predetermined water depth; a transporting portion configured to guide the hydrogen container that is filled with the hydrogen gas, from above the predetermined water depth to the hydrogen storagechamber; a gas release portion configured to cause the hydrogen gas to be released from the hydrogen container transported to the hydrogen storage chamber and to be stored in the hydrogen storage chamber; a hydrogen recovery device placed above the predetermined depth; and a tube arranged to connect inside of the hydrogen storage chamber with the hydrogen recovery device.

A system for automated rendezvous, docking, and capture of autonomous underwater vehicles at the conclusion of a mission comprising of comprised of a docking rod having lighted, pulsating (in both frequency and light intensity) series of LED light strips thereon, with the LEDs at a known spacing, and the autonomous underwater vehicle specially designed to detect and capture the docking rod and then be lifted structurally by a spherical end strop about which the vehicle can be pivoted and hoisted up (e.g., onto a ship). The method of recovery allows for very routine and reliable automated recovery of an unmanned underwater asset.

An apparatus for use with a submerged compartment is presented. The apparatus includes deployable physical connection hardware provided with the submerged compartment. The deployable physical connection allows for a transfer of fluid between the submerged compartment and a region near a marine free surface when deployed. The deployable physical connection hardware comprises a hose in one aspect.

The invention discloses a modularized small-size unmanned underwater vehicle which includes a vehicle middle part, and a vehicle head part and a vehicle tail part which are detachably connected to the vehicle middle part. A plurality of system sub modules are installed in the vehicle head part. A power propelling system and a control and guiding system are installed in the vehicle middle part. A propeller for cooperatively driving the underwater vehicle to move is assembled on the vehicle tail part. In the invention, the supporting system is independently modularized, while the control and guiding system and the power propelling system are subjected to integrated independent modularization treatment. A plurality of supporting system module sections with different system sub modules built-in are designed, so that the different supporting system module sections can be connected to and combined with the control and guiding system and the power propelling system so as to complete different functions, and if another function needs to complete, only the corresponding supporting system module section needs to change, thereby reducing design and manufacturing cost.