Granted Patent B2

US 12,372,174 · App. 18/694,756 · Granted Jul 29, 2025

Inventor: Thomas Issler (Verin, FR)

Assignee: Zelup

F16L21/08F16L21/03F16L11/22

Abstract

Claims (18)

1. A fluid connection system for connecting two two-phase flexible pipes each comprising two coaxial casings defining a central flow flowing into an inner casing and an annular flow flowing into a space between the inner casing and an outer casing, the connection system comprising:

a first complementary connector and a second complementary connector;

wherein the second complementary connector is configured to be attached to an end of a first two-phase flexible pipe of the two two-phase flexible pipes, and the first complementary connector is configured to be attached to an end of a second two-phase flexible pipe of the two two-phase flexible pipes, the first complementary connector and the second complementary connector having a locking mechanism for locking the first complementary connector and the second complementary connector together in an axial direction;

wherein the first complementary connector has:

a central connecting part having a distal end configured to ensure a sealed connection with an end of the inner casing of the second two-phase flexible pipe; and

a peripheral connecting part having a distal end configured to ensure a sealed connection with an end of the outer casing of the second two-phase flexible pipe, the peripheral connecting part having an annular front inner flange, axially traversed by ports opening into a peripheral flow region;

wherein the central connecting part and the peripheral connecting part are assembled to define a transverse coupling surface; and

wherein the second complementary connector has:

a central connecting part having a distal end configured to ensure a sealed connection with an end of the inner casing of the first two-phase flexible pipe; and

a peripheral connecting part having a distal end configured to ensure a sealed connection with an end of the outer casing of the first two-phase flexible pipe, the peripheral connecting part having an annular front inner flange, axially traversed by ports opening into the peripheral flow region;

wherein the central connecting part and the peripheral connecting part are assembled to define a second transverse front coupling surface; and

wherein the central connecting part of the first complementary connector comprises an inner sleeve extended by a disc shoulder and a coaxial tubular outer sleeve having a plurality of axial threaded holes, the inner sleeve and the coaxial tubular outer sleeve being configured to enclose the end of the inner casing of the second two-phase flexible pipe.

2. The fluid connection system of claim 1 , further comprising a sealing disc having an annular shape and including axial openings corresponding to the ports in the annular front inner flange of each of the first complementary connector and the second complementary connector.

3. The fluid connection system of claim 1 , wherein the first complementary connector and the second complementary connector have a locking mechanism in an angular and axial direction by relative rotation of a coupling ring bearing alternating annular shoulders and intermediate space, with a complementary coupling ring bearing alternating claws having annular shoulders.

4. The fluid connection system of claim 1 , wherein the peripheral connecting part of the first complementary connector comprises a sleeve having, on a distal side, a tubular lip having a diameter corresponding to an inner diameter of the outer casing, the sleeve having a plurality of axial threaded holes, the sleeve being extended on a proximal side by an inner collar traversed by axial holes, the inner collar defining a central port in a section corresponding to the section of the inner sleeve, the sleeve being extended on the proximal side by a locking collar defining a cavity for receiving the end of the second complementary connector; the peripheral connecting part further comprising a coaxial tubular outer sleeve having a plurality of axial holes, the sleeve and the coaxial tubular outer sleeve being configured to enclose the end of the outer casing of the second two-phase flexible pipe, the sleeve and the coaxial tubular outer sleeve being assembled by axial screws passing through the axial holes in the coaxial tubular outer sleeve to fit into the axial threaded holes of the sleeve.

5. The fluid connection system of claim 1 , wherein the central connecting part and the peripheral connecting part of the first complementary connector are assembled by axial screws passing through a collar of the sleeve to fit into the axial threaded holes in the coaxial tubular outer sleeve of the central connecting part.

6. The fluid connection system of claim 1 , wherein the central connecting part of the second complementary connector comprises an inner sleeve extended by a disc shoulder and a coaxial tubular outer sleeve having a plurality of axial holes, the inner sleeve and the coaxial tubular outer sleeve being configured to enclose the end of the inner casing of the first two-phase flexible pipe.

7. The fluid connection system of claim 1 , wherein the peripheral connecting part of the second complementary connector comprises a sleeve having, on a distal side, a tubular lip having a diameter corresponding to an inner diameter of the outer casing, the sleeve having a plurality of axial threaded holes, the sleeve being extended on a proximal side by an inner collar through which axial holes pass, the inner collar defining a central port, the sleeve being extended on the proximal side by a locking collar defining a cavity for receiving the end of the second complementary connector; the peripheral connecting part further comprising a coaxial tubular outer sleeve having a plurality of axial holes, the inner sleeve and the coaxial tubular outer sleeve being configured to enclose the end of the outer casing of the second two-phase flexible pipe, the sleeve and the coaxial tubular outer sleeve being assembled by axial screws passing through the axial holes in the coaxial tubular outer sleeve to fit into the axial threaded holes in the sleeve.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (18)