Abstract: A unison ring of a gas turbine engine includes: an annular body including fiber-reinforced resin or circular-arc bodies including the fiber-reinforced resin, the fiber-reinforced resin including resin and reinforced fibers; and pin holes in which a pin is in a radial direction orthogonal to an axial direction of the unison ring. A main orientation of the reinforced fibers of the fiber-reinforced resin is directed in a circumferential direction of the unison ring.

Abstract: A unison ring of a gas turbine engine includes: an annular body including fiber-reinforced resin or circular-arc bodies including the fiber-reinforced resin, the fiber-reinforced resin including resin and reinforced fibers; and pin holes in which a pin is in a radial direction orthogonal to an axial direction of the unison ring. A main orientation of the reinforced fibers of the fiber-reinforced resin is directed in a circumferential direction of the unison ring.

Abstract: A double-shell tank includes: an inner shell storing liquefied gas; an outer shell surrounding the inner shell, the outer shell forming a vacuum space between the inner shell and the outer shell; at least one metal sheet mounted to the inner shell, such that the metal sheet faces at least a bottom surface of the inner shell; an adsorbent placed on the metal sheet, the adsorbent adsorbing gas molecules by physisorption; and a thermal insulator covering the inner shell over the metal sheet.

Abstract: A thermal insulating structure includes: at least two retainers that protrude from a to-be-insulated surface exposed to a vacuum space; at least two first multilayer vacuum insulating sheets adjacent to each other with the retainers positioned therebetween, the insulating sheets covering the to-be-insulated surface; at least one second multilayer vacuum insulating sheet that extends between the retainers along a boundary between the first multilayer vacuum insulating sheets in a manner to cover the boundary; at least two third multilayer vacuum insulating sheets that are adjacent to each other with the retainers positioned therebetween, the at least two third multilayer vacuum insulating sheets covering the first multilayer vacuum insulating sheets and the second multilayer vacuum insulating sheet; and a keep plate that is fixed to the retainers and holds the first multilayer vacuum insulating sheets, the second multilayer vacuum insulating sheet, and the third multilayer vacuum insulating sheets.

Abstract: A double-shell tank includes: an inner shell storing liquefied gas; an outer shell surrounding the inner shell, the outer shell forming a vacuum space between the inner shell and the outer shell; at least one metal sheet mounted to the inner shell, such that the metal sheet faces at least a bottom surface of the inner shell; an adsorbent placed on the metal sheet, the adsorbent adsorbing gas molecules by physisorption; and a thermal insulator covering the inner shell over the metal sheet.

Abstract: A thermal insulating structure includes: at least two retainers that protrude from a to-be-insulated surface exposed to a vacuum space; at least two first multilayer vacuum insulating sheets adjacent to each other with the retainers positioned therebetween, the insulating sheets covering the to-be-insulated surface; at least one second multilayer vacuum insulating sheet that extends between the retainers along a boundary between the first multilayer vacuum insulating sheets in a manner to cover the boundary; at least two third multilayer vacuum insulating sheets that are adjacent to each other with the retainers positioned therebetween, the at least two third multilayer vacuum insulating sheets covering the first multilayer vacuum insulating sheets and the second multilayer vacuum insulating sheet; and a keep plate that is fixed to the retainers and holds the first multilayer vacuum insulating sheets, the second multilayer vacuum insulating sheet, and the third multilayer vacuum insulating sheets.

Abstract: A thermal insulating structure includes: at least two first multilayer vacuum insulators that adjoin each other and that cover a to-be-insulated surface; a retainer that is fixed to the to-be-insulated surface and that protrudes from a boundary between the first multilayer vacuum insulators; a second multilayer vacuum insulator that extends along the boundary and that covers the boundary, the second multilayer vacuum insulator including a through-hole formed therein, in which the retainer is inserted; and a keep plate that is fixed to the retainer and that holds the second multilayer vacuum insulator and the first multilayer vacuum insulators.

Abstract: A liquefied gas storage tank includes: an inner shell storing a liquefied gas; an outer shell forming a vacuum space between the inner shell and the outer shell; and a fail-safe thermal insulating layer covering an outer side surface of the outer shell. According to this configuration, the fail-safe thermal insulating layer is not disposed in the vacuum space. This makes it possible to suppress the degradation over time of the degree of vacuum in the vacuum space.

Abstract: A horizontal type cylindrical double-shell tank includes an inner shell and an outer shell. The inner shell includes an inner shell main part storing a liquefied gas and an inner shell dome protruding from the inner shell main part. The outer shell forms a vacuum space between the inner shell and the outer shell, and includes an outer shell main part surrounding the inner shell main part and an outer shell dome surrounding the inner shell dome. The inner shell dome is provided with an inner shell manhole. The outer shell dome is provided with an outer shell manhole at a position corresponding to a position of the inner shell manhole.

Abstract: A thermal insulating structure includes: at least two first multilayer vacuum insulators that adjoin each other and that cover a to-be-insulated surface; a retainer that is fixed to the to-be-insulated surface and that protrudes from a boundary between the first multilayer vacuum insulators; a second multilayer vacuum insulator that extends along the boundary and that covers the boundary, the second multilayer vacuum insulator including a through-hole formed therein, in which the retainer is inserted; and a keep plate that is fixed to the retainer and that holds the second multilayer vacuum insulator and the first multilayer vacuum insulators.

Abstract: A structure of a horizontal type cylindrical double-shell tank mounted on a ship includes: an inner shell storing liquefied gas; and an outer shell forming a vacuum space between the inner shell and the outer shell. A pair of support units supporting the inner shell is disposed between the inner shell and the outer shell. Each support unit includes: a plurality of cylindrical elements arranged in a circumferential direction of the tank such that an axial direction of each of the cylindrical elements coincides with a radial direction of the tank; a plurality of inner members each holding an end portion of a corresponding one of the cylindrical elements at the inner shell side; and a plurality of outer members each holding an end portion of a corresponding one of the cylindrical elements at the outer shell side. Each of the cylindrical elements is made of glass fiber reinforced plastic.

Abstract: A support structure of a ship tank includes: a curved surface facing an outer peripheral surface of a horizontal type cylindrical tank; and a pair of support units supporting the tank on the curved surface. Each of the support units includes: a plurality of cylindrical elements arranged in a circumferential direction of the tank such that an axial direction of each of the cylindrical elements coincides with a radial direction of the tank; a plurality of inner members each holding an end portion of a corresponding one of the cylindrical elements at the tank side; and a plurality of outer members each holding an end portion of a corresponding one of the cylindrical elements at an opposite side to the tank. The inner members are fixed to the tank. The outer members of one of the support units are configured such that displacement of the outer members in an axial direction of the tank relative to the curved surface is restricted.

Abstract: A liquefied gas storage tank includes: an inner shell storing a liquefied gas; an outer shell forming a vacuum space between the inner shell and the outer shell; and a fail-safe thermal insulating layer covering an outer side surface of the outer shell. According to this configuration, the fail-safe thermal insulating layer is not disposed in the vacuum space. This makes it possible to suppress the degradation over time of the degree of vacuum in the vacuum space.

Abstract: A horizontal type cylindrical double-shell tank includes an inner shell and an outer shell. The inner shell includes an inner shell main part storing a liquefied gas and an inner shell dome protruding from the inner shell main part. The outer shell forms a vacuum space between the inner shell and the outer shell, and includes an outer shell main part surrounding the inner shell main part and an outer shell dome surrounding the inner shell dome. The inner shell dome is provided with an inner shell manhole. The outer shell dome is provided with an outer shell manhole at a position corresponding to a position of the inner shell manhole.

Abstract: A structure of a horizontal type cylindrical double-shell tank mounted on a ship includes: an inner shell storing liquefied gas; and an outer shell forming a vacuum space between the inner shell and the outer shell. A pair of support units supporting the inner shell is disposed between the inner shell and the outer shell. Each support unit includes: a plurality of cylindrical elements arranged in a circumferential direction of the tank such that an axial direction of each of the cylindrical elements coincides with a radial direction of the tank; a plurality of inner members each holding an end portion of a corresponding one of the cylindrical elements at the inner shell side; and a plurality of outer members each holding an end portion of a corresponding one of the cylindrical elements at the outer shell side. Each of the cylindrical elements is made of glass fiber reinforced plastic.

Abstract: A support structure of a ship tank includes: a curved surface facing an outer peripheral surface of a horizontal type cylindrical tank; and a pair of support units supporting the tank on the curved surface. Each of the support units includes: a plurality of cylindrical elements arranged in a circumferential direction of the tank such that an axial direction of each of the cylindrical elements coincides with a radial direction of the tank; a plurality of inner members each holding an end portion of a corresponding one of the cylindrical elements at the tank side; and a plurality of outer members each holding an end portion of a corresponding one of the cylindrical elements at an opposite side to the tank. The inner members are fixed to the tank. The outer members of one of the support units are configured such that displacement of the outer members in an axial direction of the tank relative to the curved surface is restricted.