Abstract: A fluid joint having a first coupler includes a cylindrical first main body and an outer cylinder located at the outer circumferential side of the first main body, which protrudes to a distal end of the first main body, and is provided with a first engagement portion and a second engagement portion at the distal end. The second coupler includes a second main body provided with a third engagement portion that can engage with the first engagement portion and a fourth engagement portion that can engage with the second engagement portion. The phases of the first engagement portion and the third engagement portion match in the process of engagement thereof, so that the second engagement portion and the fourth engagement portion engage with each other to join the outer cylinder and the second main body together.

Abstract: Provided is a fluid joint having a first coupler that includes a cylindrical first main body and an outer cylinder located at the outer circumferential side of the first main body, which protrudes to a distal end of the first main body, and is provided with a first engagement portion and a second engagement portion at the distal end, wherein the second coupler includes a second main body provided with a third engagement portion that can engage with the first engagement portion and a fourth engagement portion that can engage with the second engagement portion; and wherein the phases of the first engagement portion and the third engagement portion match in the process of engagement thereof, so that the second engagement portion and the fourth engagement portion engage with each other to join the outer cylinder and the second main body together.

Abstract: A low-temperature-slush-fluid producing apparatus capable of achieving an increased weight solidification rate of slush fluid is provided. A low-temperature-slush-fluid producing apparatus includes a slush-fluid producing unit that includes a heat exchanger having a heat-transfer surface and disposed in a liquid-phase low-temperature fluid L stored in a container and scraping means for scraping a solid-phase low-temperature fluid formed on a surface of the heat-transfer surface; and a cryogenic-fluid generating unit for supplying into the interior of the heat-transfer surface a cryogenic fluid having a lower temperature than the liquid-phase low-temperature fluid L stored in the container.

Abstract: The invention provides a small, lightweight connector that is appropriate for the handling of fluids, a fluid supply apparatus that makes use thereof, a movable body, a fluid supply system, a connector connection method, and a connector separation method. A supply side connector provided on a fluid supply apparatus, and an inlet side connector, each have an inner cylinder which constitutes a connection part of both supply lines, and an outer cylinder which encloses the inner cylinder and which constitutes a connection part of both vent lines. A second supply valve is provided on the respective supply lines, and carries out switching between restriction and release of the flow of the fluid through the supply line by changing the position in the axial direction of the inner cylinder. A second vent valve is provided on the vent line of the inlet side connector, and carries out switching between restriction and release of the flow of the fluid through the vent line.

Abstract: The invention provides a small, lightweight connector that is appropriate for the handling of fluids, a fluid supply apparatus that makes use thereof, a movable body, a fluid supply system, a connector connection method, and a connector separation method. A supply side connector provided on a fluid supply apparatus, and an inlet side connector, each have an inner cylinder which constitutes a connection part of both supply lines, and an outer cylinder which encloses the inner cylinder and which constitutes a connection part of both vent lines. A second supply valve is provided on the respective supply lines, and carries out switching between restriction and release of the flow of the fluid through the supply line by changing the position in the axial direction of the inner cylinder. A second vent valve is provided on the vent line of the inlet side connector, and carries out switching between restriction and release of the flow of the fluid through the vent line.

Abstract: The object of this invention is to provide a structure of seal ring, and seal structure using the seal ring for flange joints of composite tanks and pipes, that prevents seal surface variations due to differences in thermal contraction between the seal ring and the tank/the flange joint, etc., that improves the resilience of the seal, and that prevents gas leakage due to poor sealing, in order to achieve the stable sealing. The seal ring fits into a ring groove formed in a sealed unit such as a tank unit or a flange joint to provide a tight seal to contain fluids. The heart-shaped seal ring has three curved surface areas that smoothly flow together, comprised of a first curved seal surface which contacts the formed surface of the ring groove, a second curved seal surface which contacts the seal surface of a second member (e.g. manhole cover), and a projecting curved surface on the opposite side.

Abstract: The object of this invention is to provide a structure of seal ring, and seal structure using the seal ring for flange joints of composite tanks and pipes, that prevents seal surface variations due to differences in thermal contraction between the seal ring and the tank/the flange joint, etc., that improves the resilience of the seal, and that prevents gas leakage due to poor sealing, in order to achieve the stable sealing. The seal ring fits into a ring groove formed in a sealed unit such as a tank unit or a flange joint to provide a tight seal to contain fluids. The heart-shaped seal ring has three curved surface areas that smoothly flow together, comprised of a first curved seal surface which contacts the formed surface of the ring groove, a second curved seal surface which contacts the seal surface of a second member (e.g. manhole cover), and a projecting curved surface on the opposite side.