A fuel conduit for a fuel injector includes a coiled tube with a longitudinal segment arranged along a flow axis and a radial segment. The radial segment extends about the flow axis and is in fluid communication with the longitudinal segment. The wall one or more of the longitudinal and radial segments increases at a thickness transition location offset from a minimum radius of curvature location along the fuel conduit to limit stress within the fuel conduit. Fuel injectors and methods of making fuel injectors are also described.

A system for forming a pipeline including fused pipe having straight pipe elements and one or more non-linear pipe subassemblies positionable at respective preselected locations on a predetermined path. The system includes a straight pipe processing subassembly and a finishing subassembly. The system also includes a second fusing module for fusing the non-linear pipe subassembly with a selected one of the straight pipe elements to include the non-linear pipe subassembly in the fused pipe, the second fusing module being attachable to the finishing subassembly.

A flexible pipe loop for use in a pipe run, which is divided at allocation along its run, said loop comprising: a first flexible tube member comprising a first and second open end, wherein the first open end is to be connected to the pipe run at the divided location such that the first flexible tube member is in fluid communication with the pipe run; a second flexible tube member comprising a first and second open end, wherein the first open end is connected to and in fluid communication with the second open end of the first flexible tube member; a third flexible tube member comprising a first and second open end, wherein the first open end is connected to and in fluid communication with the second open end of the second flexible tube member such that the third flexible tube member is disposed substantially in parallel with the second flexible tube member, wherein the second open end of the third flexible tube member is to be connected to and in fluid communication with the pipe run; wherein the first flexible tube member is disposed substantially perpendicularly to both the second flexible tube member and the third flexible tube member.

A flexible conduit having a rigid portion, a flexible portion and a releasable connector secured to the rigid portion to support the flexible conduit. The releasable connector includes a male member and a female member. One of the two members are secured together with a biasing element such as a retaining ring, and a detent. Both members may include detents, with each detent on the male member including a retaining ring.

A flexible conduit having a rigid portion, a flexible portion and a releasable connector secured to the rigid portion to support the flexible conduit. The releasable connector includes a male member and a female member. One of the two members are secured together with a biasing element such as a retaining ring, and a detent. Both members may include detents, with each detent on the male member including a retaining ring.

An underwater support device and an installation method for initiating the buckling of a section of rigid underwater pipe (16) deployed on a seabed (14). The device has a longitudinal support (22) capable of being installed between the seabed and the section of rigid underwater pipe (16) in a transverse direction, in such a way as to be able to locally detach the section of rigid underwater pipe (16) from the seabed (14) and allow the rigid underwater pipe (16) to be moved relative to said longitudinal support (22) in the direction of the longitudinal support. The device also has a link member (36) to secure the rigid underwater pipe (16) and the longitudinal support (22) in such a way as to be able to install said longitudinal support (22) on the seabed (14) by deploying the section of rigid pipe (26) on the seabed (14).

An underwater support device and an installation method for initiating the buckling of a section of rigid underwater pipe (16) deployed on a seabed (14). The device has a longitudinal support (22) capable of being installed between the seabed and the section of rigid underwater pipe (16) in a transverse direction, in such a way as to be able to locally detach the section of rigid underwater pipe (16) from the seabed (14) and allow the rigid underwater pipe (16) to be moved relative to said longitudinal support (22) in the direction of the longitudinal support. The device also has a link member (36) to secure the rigid underwater pipe (16) and the longitudinal support (22) in such a way as to be able to install said longitudinal support (22) on the seabed (14) by deploying the section of rigid pipe (26) on the seabed (14).

A flexible conduit having a rigid portion, a flexible portion and a releasable connector secured to the rigid portion to support the flexible conduit. The releasable connector includes a male member and a female member. One of the two members includes at least one biased plungers and the other includes at least one detent. The plungers and detents are vertically spaced along the longitudinal axes of the members. A clevis may be used to secure the releasable connector to the rigid portion of the flexible conduit. A second support connected to the male and female members may be used. Also a method of supporting a flexible conduit with a releasable connector.

A flexible conduit having a rigid portion, a flexible portion and a releasable connector secured to the rigid portion to support the flexible conduit. The releasable connector includes a male member and a female member. One of the two members includes at least one biased plungers and the other includes at least one detent. The plungers and detents are vertically spaced along the longitudinal axes of the members. A clevis may be used to secure the releasable connector to the rigid portion of the flexible conduit. A second support connected to the male and female members may be used. Also a method of supporting a flexible conduit with a releasable connector.

A flexible conduit having a rigid portion, a flexible portion and a releasable connector secured to the rigid portion to support the flexible conduit. The releasable connector includes a male member and a female member. One of the two members are secured together with a biasing element such as a retaining ring, and a detent. Both members may include detents, with each detent on the male member including a retaining ring.