An object is to propose a fluid handling device for liquid hydrogen that prevents evaporation of liquid hydrogen, and moreover affords excellent heat insulation without liquefying oxygen in the vicinity. In a fluid handling device for liquid hydrogen, piping sections (1) have a heat insulation structure, a swivel joint section (2) is configured with helium gas sealed into a boundary relative-rotation section (6) between an outer ring section (3) and an inner ring section (4) with a bearing section (5) interposed, and moreover, between an outside-air-contacting wall section (7) that is in contact with the outside air and a liquid-hydrogen-contacting wall section (8) that is in contact with liquid hydrogen, a vacuum section (9) extends in the axial direction and moreover a heat-conducting extended path section (10) is provided with one end connected to the outside-air-contacting wall section (7) and the other end connected to the liquid-hydrogen-contacting wall section (8), extending the heat conduction distance between the outside-air-contacting wall section (7) and the liquid-hydrogen-contacting wall section (8), and reducing heat conductivity between the outside-air-contacting wall section (7) and the liquid-hydrogen-contacting wall section (8).

A transfer line that includes a process line for transporting a cryogenic fluid, to a motor vehicle, a motor vehicle having such a transfer line, and a computer-implemented method for determining the tightness of the sheath of such a transfer line. The transfer line includes a process line for transporting a cryogenic fluid, a sheath arranged to surround the process line to define an insulation space between the process line and the sheath, one or more temperature sensors arranged on an outer surface of the sheath to detect a current temperature of the sheath; and a control unit operatively connected to the one or more temperature sensors. The control unit has one or more processors and a non-transitory memory operatively coupled to the one or more processors including a set of instructions executable by the one or more processors to cause the control unit to determine, in response to receipt of a signal from the one or more temperature sensors that corresponds to the detected current temperature of the sheath, a tightness of the sheath relative to the process line.

A transfer line that includes a process line for transporting a cryogenic fluid, to a motor vehicle, a motor vehicle having such a transfer line, and a computer-implemented method for determining the tightness of the sheath of such a transfer line. The transfer line includes a process line for transporting a cryogenic fluid, a sheath arranged to surround the process line to define an insulation space between the process line and the sheath, one or more temperature sensors arranged on an outer surface of the sheath to detect a current temperature of the sheath; and a control unit operatively connected to the one or more temperature sensors. The control unit has one or more processors and a non-transitory memory operatively coupled to the one or more processors including a set of instructions executable by the one or more processors to cause the control unit to determine, in response to receipt of a signal from the one or more temperature sensors that corresponds to the detected current temperature of the sheath, a tightness of the sheath relative to the process line.

In a vacuum insulating container, an outer cylinder has a first annular wall that extends radially inward so as to be inclined with respect to an aperture plane of the outer cylinder at an open end of the outer cylinder and has a tip end part spaced apart from an outer peripheral surface of the inner cylinder; an inner cylinder has a second annular wall that extends radially outward so as to be inclined with respect to the aperture plane of the inner cylinder at an open end of the inner cylinder and faces the first annular wall; and an annular sealing member formed of an elastic body having a low thermal conductivity is compressed between the first annular wall and the second annular wall.

A vacuum insulated structure including a tube having an outer wall, a jacket surrounding the tube to enclose an annular insulating space, the jacket having an end that terminates at the outer wall of the tube, a seal formed between the end of the jacket and the tube to preserve a vacuum within the insulating space, and a fitting affixed to one of the tube and the jacket for coupling the vacuum insulated structure to an external device. A method of making a vacuum insulated structure including forming a tube and a jacket, positioning the jacket over the tube to form an annular insulating space, with an end of the jacket being positioned adjacent to an outer wall of the tube to form a vent, causing air to escape through the vent, sealing the vent, and affixing a fitting to one of the tube and the jacket.

A vacuum insulated structure including a tube having an outer wall, a jacket surrounding the tube to enclose an annular insulating space, the jacket having an end that terminates at the outer wall of the tube, a seal formed between the end of the jacket and the tube to preserve a vacuum within the insulating space, and a fitting affixed to one of the tube and the jacket for coupling the vacuum insulated structure to an external device. A method of making a vacuum insulated structure including forming a tube and a jacket, positioning the jacket over the tube to form an annular insulating space, with an end of the jacket being positioned adjacent to an outer wall of the tube to form a vent, causing air to escape through the vent, sealing the vent, and affixing a fitting to one of the tube and the jacket.

The presently disclosed subject matter generally relates to recyclable insulation material for shipping containers, groceries bags, etc., machines for making the recyclable insulation material, and methods for the making the recyclable insulation material. In one aspect, a method of forming an insulation product may include forming a continuous sheet of paper into a plurality of flexible loops defining a plurality of air channels extending in a direction that is substantially perpendicular with a machine direction of the continuous sheet of paper. The method may also include immediately attaching a first layer of paper and a second layer of paper to the plurality of flexible loops as they are formed so that the continuous sheet of paper retains the plurality of flexible loops between the first layer and the second layer and that the plurality of flexible loops remain unattached with respect to one another.

The presently disclosed subject matter generally relates to recyclable insulation material for shipping containers, groceries bags, etc., machines for making the recyclable insulation material, and methods for the making the recyclable insulation material. In one aspect, a method of forming an insulation product may include forming a continuous sheet of paper into a plurality of flexible loops defining a plurality of air channels extending in a direction that is substantially perpendicular with a machine direction of the continuous sheet of paper. The method may also include immediately attaching a first layer of paper and a second layer of paper to the plurality of flexible loops as they are formed so that the continuous sheet of paper retains the plurality of flexible loops between the first layer and the second layer and that the plurality of flexible loops remain unattached with respect to one another.

A double tube is provided, which can reliably prevent buckling and flattening of an inner tube even when bending is performed.

A double tube is provided, which can reliably prevent buckling and flattening of an inner tube even when bending is performed.