Connection device for making a connection between a turbomachine nozzle and a feed enclosure for feeding cooling fluid to injectors
AssigneeSnecma Moteurs
InventorsJean-Luc Soupizon, Sebastien Imbourg, Philippe Jean Pierre Pabion
Life of this patent
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Abstract
A connection device between a nozzle and a feed enclosure for feeding cooling fluid to at least one injector in a turbomachine, the device comprises at least one bushing having open axial ends engaged in orifices in a wall of the nozzle and in a wall of the feed enclosure, together with retaining means for retaining the bushing axially, the retaining means being formed to project from an outer cylindrical surface of the bushing between the axial ends of the bushing and at a distance from said ends.
Claims20
A connection device between a nozzle and a feed enclosure for feeding at least one cooling fluid injector in a turbomachine, the device comprising at least one bushing slidably mounted via its open axial ends in orifices in a wall of the nozzle and in a wall of the feed enclosure, and also retaining means for retaining the bushing axially, said retaining means comprising an outer annular collar projecting from a cylindrical outer surface of the bushing between the axial ends of the bushing and at a distance from said ends, wherein the bushing is made up of two tubular elements each having an annular rim at one end, the two annular rims being pressed one against the other and being united to form said outer annular collar of the bushing.
A connection device between a nozzle and a feed enclosure for feeding at least one cooling fluid injector in a turbomachine, the device comprising at least one bushing slidably mounted via its open axial ends in orifices in a wall of the nozzle and in a wall of the feed enclosure, and also retaining means for retaining the bushing axially, said retaining means comprising an outer annular collar projecting from a cylindrical outer surface of the bushing between the axial ends of the bushing and at a distance from said ends,
- wherein the bushing comprises a tubular element having an annular washer fitted thereon and secured thereto to form said outer annular collar, the bushing being mechanically deformed to engage material from the bushing in an annular groove formed in a cylindrical inside surface of the washer.
Dependencies are inferred from the claim text.