An expansion compensator having a longitudinal axis, and having an elongate metal conduit with first and second spaced apart ends and an expansion/contraction section, an inner plastic liner positioned interior of the elongate metal conduit and having an expansion/contraction section and an interior volume extending from the first end to the second end, wherein each of the elongate metal conduit and the inner plastic liner have a stiffness along the longitudinal axis, and the stiffness of the elongate metal conduit is greater than the stiffness of the inner plastic liner.

An elbow includes an elbow body, and a pipe wall of the elbow body is saw-toothed along an extending direction of the elbow body so that a bending angle of the elbow body is adjustable.

An expansion joint of the present disclosure includes: a first flange disposed outside a pipe; a second flange disposed outside the pipe and is disposed away from the first flange in an axial direction of the joint; a main bellows connected to the first and second flanges and in which a flow passage of a fluid is formed; and a balancing device connected to the first and second flanges outside the main bellows and applies a thrust force opposite to a thrust force, applied to the first and second flanges in the axial direction by the main bellows, to the first and second flanges, wherein the balancing device includes a fluid supply unit, an elastic portion connected to the fluid supply unit and is allowed to expand and contract in the axial direction, and a connection portion connecting the elastic portion to the first and second flanges.

A thermal expansion/pressure compensator includes a body having an inlet at a first connection point and an outlet at a second connection point. The body includes a flexible member extending along a portion of the body. The body has an internal chamber configured to receive a fluid via the inlet. The internal chamber is shaped to direct fluid through the flexible member and out of the body via the outlet. The flexible member is configured to flex responsive to expansion of the body. The compensator also includes a rigid member operably coupled with the body. The rigid member is thermally and fluidly isolated from the body and the flexible member. The body, the flexible member, and the rigid member are formed as a unitary structure.

An elbow includes an elbow body, and a pipe wall of the elbow body is saw-toothed along an extending direction of the elbow body so that a bending angle of the elbow body is adjustable.

A gimbal expansion joint includes a first clevis adapted to be secured to one end of a first piece of ducting, a second clevis adapted to be secured to an end of a second piece of ducting, and a gimbal arrangement to which the first and second clevises are pivotably connected to form a universal joint between the ends of the pieces of ducting. A flexible duct extends between the first and second clevises to form a passage for fluid communication between the ends of the first and second pieces of ducting. The flexible duct has a respective flange at each end, each flange providing an axially-directed face across which a clamping load is applied to affix the flange to a corresponding axially-directed face of the respective clevis.

A bellows restraint includes a first bracket having a first mount and a first arm extending from the first mount, a second bracket having a second mount and a second arm extending from the second mount to be adjacent to the first arm with the second arm having at least one through-hole, and a first fastener extending through the at least one through-hole of the second arm to connect to the first arm with the first fastener having a cross-sectional area that is smaller than a cross-sectional area of the at least one through-hole to allow the first bracket to move in relation to the second bracket.

A flexible joint assembly for a joint between a first duct and a second duct for providing a flow of fluid, such as bleed air in an aviation implementation. The flexible joint includes a bellows supported by a mounting assembly having a first support and a second support, each surrounding a portion of the bellows. A gimbal ring assembly of the joint assemblies can operably couple the first support and the second support.

A turbine engine duct assembly and joint assembly having an outer shroud at least partially defining an interior of the joint assembly, an inner shroud at least partially received within the outer shroud and forming an interface therewith and defining a remainder of the interior of the joint assembly and having a flexible portion for dynamic movement of the duct assembly during operation of the engine.

An expansion compensator having an elongate metal conduit with first and second spaced apart ends and an expansion/contraction section, an inner plastic liner positioned interior of the elongate metal conduit and having an expansion/contraction section and an interior volume extending from the first end to the second end, and first and second connectors provided at the first and second ends, respectively, of the elongate metal conduit and the inner plastic liner, each connector having a first portion secured to the outer surface of the elongate metal conduit, a second portion secured to the inner surface of the inner plastic liner, and an opening in fluid communication with the interior volume of the inner plastic liner.