Internal fuel manifold with turned channel having a variable cross-sectional area
AssigneePratt & Whitney Canada Corp.
InventorsBhawan B. Patel, Jason Fish, Dany Gaudet, Lafleche Gagnon
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Abstract
A method of manufacturing an internal manifold of a gas turbine engine including machining an annular channel in a ring by a turning process, and varying a position of a tool bit relative to the surface of the ring as a function of a relative circumferential location of the tool bit around the ring such that the channel has a cross-sectional area that varies around a circumference of the ring.
Claims13
A method of manufacturing an internal manifold of a gas turbine engine, the method comprising:
- providing a solid ring;
- machining at least one annular channel in the ring using a turning process, including:
- rotating the ring about a central axis thereof;
- forming the annular channel with a cross-sectional area that varies around a circumference of the ring by engaging a tool bit with a peripheral surface of the rotating ring to remove material from said surface to provide said channel defined in said surface, and varying a position of the tool bit relative to the surface of the ring while said ring is rotated and the tool bit engaged with said surface in accordance with a predetermined channel area profile to thereby provide the channel with a varying cross-sectional area around the ring circumference;
- and
- sealingly fastening a sealing member to the ring to enclose the channel and define therewith at least one circumferential conduit having a cross-sectional area that varies around the circumference of the ring.
A method of creating a channel having a varied cross-sectional area in an internal fuel manifold ring of a gas turbine engine, the method comprising:
- using a turning machine to rotate the ring about a central axis thereof and to machine an annular channel in a peripheral outer surface of the ring using a preselected tool bit by engaging the tool bit with the peripheral outer surface of the rotating ring to remove material from said surface, the machining including forming the channel with a cross-sectional area that varies around a circumference of the ring by varying a position of the tool bit while said ring is rotated in accordance with a predetermined profile.
Dependencies are inferred from the claim text.