Abstract:
A hydrogen storage tank for a hydrogen fueled aircraft. The tank has a wall made of layers of aerogel sections around a hard shell layer, sealed within a flexible outer layer, and having the air removed to form a vacuum. The periphery of each layer section abuts other sections of that layer, but only overlies the periphery of the sections of other layers at individual points. The wall is characterized by a thermal conductivity that is lower near its gravitational top than its gravitational bottom. The tank has two exit passageways, one being direct, and the other passing through a vapor shield that extends through the wall between two layers of aerogel. A control system controls the relative flow through the two passages to regulate the boil-off rate of the tank.
Abstract:
PROBLEM TO BE SOLVED: To improve ease of use of escape routes.SOLUTION: The floating body type liquefied natural gas production, storage and shipping facilities include a plant 3 for generating liquefied gas from mined natural gas; tanks 5-1 to 5-3 for storing the liquefied gas; a floating body 2 for supporting the plant 3 and the tanks 5-1 to 5-3; and the escape routes. The escape routes include a plant-side escape route 26-i close to the plant 3; and a tank-side escape route 27-i close to the tanks 5-1 to 5-3. Hereat, the plant-side escape route 26-i is disposed below an upper deck 21. The plant 3 is disposed on the upper deck 21. With the floating body type liquefied natural gas production, storage and shipping facilities 1, thanks to the upper deck 21, a crew more surely avoids fire and blast due to fire or explosion occurred in the plant 3 when the crew passes through an escape route 17-i close to the plant 3.
Abstract:
PROBLEM TO BE SOLVED: To provide a sealing structure of a pressure vessel preventing a reduction in a sealing function when a high pressure is loaded to the pressure vessel. SOLUTION: The sealing structure of the pressure vessel 1 comprises a resin liner 2 storing gas or a liquid, a fiber reinforced resin layer 3 reinforcing the outer surface of the resin liner 2, and a metal mouthpiece part 4 protruded on the outer surface of the fiber reinforced resin layer 3 to be a filling/discharging port. In the resin liner, a tubular filling/discharging part 22 with a through-hole 24, which is protruded outward from the inside of the pressure vessel, is formed. On the outer peripheral surface of the filling/discharging part, connection structures 23, 43 mutually connected with the inner peripheral surface of the mouthpiece part, are formed. In the through-hole 24 of the filling/discharging part, a tubular member 100 made by using a material with strength higher than that of the resin liner, is inserted and fitted. When a tubular valve 60 for filling/discharging the gas or liquid is inserted in a valve insertion hole 102 arranged in the tubular member through the mouthpiece part, a seal member 80 is interposed between the outer periphery 61 of the valve and the inner periphery of the valve insertion hole. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
This invention relates to a process for liquefying a gas stream rich in methane and having a pressure above about 3103 kPa (450 psia). The gas stream is expanded to a lower pressure to produce a gas phase and a liquid product having a temperature above about -112 DEG C. (-170 DEG F.) and a pressure sufficient for the liquid product to be at or below its bubble point. The gas phase and the liquid product are then phase separated in a suitable separator, and the liquid product is introduced to a storage means for storage at a temperature above about -112 DEG C. (-170 DEG F.).
Abstract:
PROBLEM TO BE SOLVED: To secure sure phase separation at various kinds of acceleration from a low acceleration in a ballistic flight phase to a high acceleration in a high acceleration phase as generated by a space navigation system, for a cryogenic fluid and for a non-cryogenic fluid in a tank. SOLUTION: A gas supply and extraction device 2 provided with a substantially cylindrical casing 25 is arranged directly on a tank shell 1 at an upper part region of a tank and directly connected with the tank shell 1. The casing 25 is provided with: a row of opening parts 3 arranged on the circumferential side of the upper part region of the casing 25 and expanding in a trumpet-like form; and at least another opening part 9 arranged in a lower part region of the casing 25 and expanding in a trumpet-like form. The casing 25 is provided with at least one take-out pipe 29 connected to at least a discharge part. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus for, even under a microgravity environment, measuring a level position and a volume of a liquid such as fuel stored in a tank in a simple and accurate manner. SOLUTION: The apparatus for measuring the liquid volume includes a vessel for receiving the liquid, a heating means provided on a wall surface of the vessel to heat the liquid received in the vessel, a temperature measuring means provided adjacent to the heating means to measure a temperature change caused by the heating by the heating means, and an arithmetic processing means for calculating a volume of the liquid received in the vessel based on the temperature change measured by the temperature measuring means. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a film material for a gas holder having high friction resistance and flexibility enough to be used as a gas holder, in addition to the strength of fiber base fabric, and having a high gas barrier property. SOLUTION: This film material 1, 2 used in the gas holder for storing or recovering gas is composed of at least four layers of a protective layer, a base fabric layer, a gas barrier layer and a protective layer. Here, at least one of the protective layers constituting the film material is preferably composed of a polyolefin resin. The base fabric layer preferably has a polyurethane resin layer at least on its one side. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a surface tension fuel tank which is used for housing and storing a storable fuel such as MMH, N 2 O 4 and hydrazine in a spacecraft, and moved with a propulsion gas used for a conveying medium so that a liquid is stably retained in a fuel path when the tank is directed horizontal, and the tank filling level is very low. SOLUTION: The fuel tank has a duct 15 having a tank outlet in a spiral manner, and connection and opening ducts, and the tank outlet is formed so that these ducts couple a collection container with an outlet pipe. In addition, the inside of the collection container of the tank outlet is formed so as to be fully filled with the liquid by the surface tension. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation:要解决的问题:提供一种表面张力燃料箱,其用于容纳和存储可存储的燃料,例如MMH,N O 4 SB>和肼 航空器,并且用于用于输送介质的推进气体移动,使得当罐被指向水平时液体被稳定地保持在燃料路径中,并且罐的填充水平非常低。 解决方案:燃料箱具有以螺旋方式具有罐出口的管道15,并且连接和打开管道以及罐出口被形成为使得这些管道将收集容器与出口管连接。 此外,罐出口的收集容器的内部形成为通过表面张力完全填充液体。 版权所有(C)2007,JPO&INPIT