Abstract:
Systems and methods for performing a stepwise depressurization of a high-pressure fluid (liquid) filled chamber are shown and described. At least two valves are controllably opened and closed in a sequence to release a predetermined amount of pressure from the high-pressure chamber. At least some of the pressurized fluid released from the high-pressure chamber is stored, at least temporarily, in a second pressure chamber. The second pressure chamber is located between the two controllable valves. A control system controls the valves in response to a signal from at least one pressure sensor coupled to the high-pressure chamber. Additional components can be included in the system such as a pressure intensifier and a high-pressure pump, both coupled to the high-pressure chamber, and at least one other pressure sensor to improve the accuracy of the measured pressure in the high-pressure chamber.
Abstract:
In a holding device and a motor vehicle including such a holding device for gas cylinders, comprising a frame formed by two longitudinal members interconnected at opposite ends by cross-members and supporting a first gas cylinder mounted to the longitudinal members by straps extending around the first gas cylinder, a profiled support rail is disposed on each of the straps and has a first profile fitting the first gas cylinder and at the opposite side a second profile for accommodating a second gas cylinder which is also mounted by straps to the support rail offset sidewardly so that the two cylinders are disposed laterally displaced to facilitate accommodation thereof adjacent an inclined rear seat back wall in the trunk of the motor vehicle.
Abstract:
A pressure vessel is configured such that a plurality of liners 1 are juxtaposed with one another. Each liner 1 includes a tubular trunk 4, and end plates 5 for closing opposite end openings of the tubular trunk 4. Two adjacent liners 1 are integrally connected together via a connection member 2 provided therebetween. The interiors of the integrally connected two adjacent liners 1 communicate with one another via a communication path 3 formed in the liners 1 and in the connection member 2. The ends of connection-member-forming projections 16 provided respectively on the two adjacent liners 1 are butt-joined together, thereby forming the connection member 2. The two adjacent liners 1 have respective through-holes 17 extending from the inner surfaces of the two adjacent liners to the ends of the connection-member-forming projections 16, and the through-holes 17 of the two adjacent liners 1 establish communication therebetween, thereby forming the communication path 3. This pressure vessel can be installed without generation of dead space, can implement a large capacity, and can be reduced in material cost and weight.
Abstract:
The invention relates to a method for producing a reservoir, in particular a cryogenic reservoir, provided with two concentric envelops (1, 3), i.e. the internal (1) and external (3), respectively, defining an interwall space (2) therebetween, wherein said internal space (2) is exposable to a reduced operational pressure and the internal envelop (1) is exposable to an internal positive process. The inventive method comprises a first step for calculating at least one minimum dimension characteristic of the internal envelop (1) for satisfying at least one first safety stress, a second step for calculating at least one minimum dimension characteristic of the external envelop (3) for satisfying at least one second safety stress, steps for producing the first and second envelops (1, 3) corresponding to the respective minimum dimensions calculated at the first and second steps, wherein said invention is characterized in that the second safety stress is the pressure resistance and burst resistance of the external envelop (3) for the process pressure specified for the internal envelop according to at least one standard or design rule.
Abstract:
A process of constructing a large diameter tank is provided. The process includes the step of providing a tank wall mandrel that has at least one drive wheel and at least one curved panel. Glass fibers are applied from a vertical winder to the curved panel in order to form a segment of a tank wall shell. Additional glass fibers are also applied to the curved panel at a location above the segment of the tank wall shell in order to form a unitary tank shell.
Abstract:
A tank for carrying cryogenic fluids and/or hydrogen peroxide and a method of forming the same is provided. A vehicle incorporating such a tank as part of the vehicle structure is also provided. The tank includes an inner wall compatible with the fluid to be carried, an outer wall, and a spacing layer sandwiched between the two walls. In an exemplary embodiment, the outer wall forms part of the structure of a flight vehicle.
Abstract:
[Object] A safe hydrogen storage tank in a highly reliable form where it is difficult for fatigue failure to occur is provided as a hydrogen storage tank where a cartridge is filled with a hydrogen occluding substance and contained within an integrally molded liner made of a metal.[Means for Achieving Object] A cartridge 10 is formed of a cartridge main body portion 11, a fixed side axial portion 13 and a free side axial portion 12, and an integrally molded liner 20 which is seamless is formed of a liner torso portion 21, a fixed side end portion 25 where a fixed side opening 25a is created via a portion in dome form 24 and a free side end portion 23 where a free side opening 23a for supporting a support plug 30 is created via a portion in dome form 22 in order to support a free side axial portion 12a, in such a manner that the fixed side opening 25a fixes and supports the fixed side axial portion 13 and is sealed by a sealing plug 40 while the free side opening 23a is sealed by the support plug 30, and the free side axial portion 12 is inserted into and supported by the recess 31 created in the support plug 30 so as to be moveable forward and backward in the direction of the axial line.
Abstract:
An integral fuel cartridge and filter apparatus includes a fuel cartridge, a filter housing coupled to the fuel cartridge, and a filter coupled to the filter housing.
Abstract:
A medical gas cylinder system is provided that includes a gas cylinder, a gas dispensing mechanism for dispensing the medical gas from the gas cylinder, a flow control valve operatively disposed in the dispensing mechanism and adapted to initiate a flow of medical gas from the gas cylinder upon actuation, and a cylinder contents gauge adapted to indicate the status of medical gas within the gas cylinder. The flow control valve includes a setting to ensure the gas contents of cylinder are evacuated prior to return shipment. The disclosed system further includes a shipping container having a configuration adapted to hold the gas cylinder and dispensing mechanism and having one or more transparent surfaces or windows such that the cylinder contents gauge or other cylinder status indication is visible when the gas cylinder and dispensing mechanism are placed in the container. The gas cylinder and container are suitable for shipment via commercial carrier.
Abstract:
A transportable device for storing and delivering oxygen includes a casing (3) containing a cryogenic tank (1) designed to contain liquid oxygen, a heating circuit connected to the tank (1) including at least one member (2, 12) for heating/vaporizing the oxygen originating from the tank (1) for the purpose of its being supplied to a user. The device includes a pedestal (4) furnished with at least one rolling member (5) for allowing the displacement by rolling of the device, the pedestal (4) and the casing (3) including conjugate coupling members (6, 16; 7, 17) displaceable between an active position of locking of the casing (3) on the pedestal (4) and an inactive position of unlatching of the casing (3) relative to the pedestal (4).