Method of manufacturing a heat exchanger for a turbine engine
AssigneeSafran Aircraft Engines
InventorsLancelot Guillou, Stéphane Louis Lucien Auberger
Life of this patent
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Abstract
A method for manufacturing an annular heat exchanger intended to be mounted on the radially inner or outer face of an annular shell of a casing of a double-flow turbomachine, the method including: obtaining by extrusion a heat exchanger preform by a die shaped so that the preform includes: first pipes for the circulation of a fluid to be cooled, second pipes arranged on either side of the first pipes in a direction perpendicular to the direction of extrusion; making a hole from the outside in the preform, the hole leading into one of the second pipes of the preform; and introducing into the hole of the second given pipe a member for partially closing off its passage cross-section.
Claims10
A method for manufacturing an annular heat exchanger intended to be mounted on the radially inner or outer face of an annular shell of a casing of a double-flow turbomachine, the method comprising:
- obtaining by extrusion along a direction of extrusion a heat exchanger preform by a die shaped so that the preform comprises:
- first pipes for the circulation of a fluid to be cooled;
- second pipes arranged on either side of the first pipes in a direction perpendicular to the direction of extrusion, the first pipes being parallel to the second pipes;
- making a hole from the outside in the preform, said hole leading into one of the second pipes of the preform;
- and
- introducing into said hole of the one of said second pipes a member for partially closing off its passage cross-section.
The method according to claim, comprising:
- adding fluidic bonding members to ends of the preform so as to:
- create a fluid flow in a first circuit between the first inlet aperture and the first outlet aperture;
- and
- create a fluid flow in a second circuit between the second inlet aperture and the second outlet aperture.
A method for manufacturing an annular heat exchanger intended to be mounted on the radially inner or outer face of an annular shell of a casing of a double-flow turbomachine, the method comprising:
- obtaining by extrusion a heat exchanger preform by a die shaped so that the preform comprises:
- first pipes for the circulation of a fluid to be cooled;
- second pipes arranged on either side of the first pipes in a direction perpendicular to a direction of extrusion;
- making a hole from the outside in the preform, said hole leading into one of the second pipes of the preform;
- introducing into said hole of the one of said second pipes a member for partially closing off its passage cross-section;
- and
- making in a middle portion of the preform and from the outside of the preform a second fluid inlet aperture opening into the one of said second pipes and a second fluid outlet aperture opening into the one of said second pipes,
- wherein a sealing member is interposed along the extrusion direction between the second inlet aperture and the second outlet aperture.
A method for manufacturing an annular heat exchanger intended to be mounted on the radially inner or outer face of an annular shell of a casing of a double-flow turbomachine, the method comprising:
- obtaining by extrusion a heat exchanger preform by a die shaped so that the preform comprises:
- first pipes for the circulation of a fluid to be cooled;
- second pipes arranged on either side of the first pipes in a direction perpendicular to a direction of extrusion;
- making a hole from the outside in the preform, said hole leading into one of the second pipes of the preform;
- introducing into said hole of the one of said second pipes a member for partially closing off its passage cross-section;
- and
- adding a sealing plate to a middle part of the preform, said sealing plate being provided with fluid passage cut-outs.
Dependencies are inferred from the claim text.