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US 8,894,360 B2Granted
Turbomachine compressor rotor including centripetal air bleed means
AssigneeSnecma
InventorBenjamin Philippe Pierre Pegouet
Life of this patent
Estimating the term…
Abstract
A turbomachine compressor rotor including at least two blade-carrying disks mounted on a common axis and connected together by a wall forming a substantially cylindrical surface of revolution, and a centripetal air bleed mechanism including air passages passing through the wall and radial fins for deflecting a stream of air leaving the passages in the wall, the fins being carried by one of the disks and being substantially in radial alignment with the passages through the wall.
Claims16
A turbomachine compressor rotor, comprising:
- first and second blade-carrying disks on a common axis and connected together by a coaxial wall forming a substantially cylindrical surface of revolution, the first blade-carrying disk being located upstream of the second blade-carrying disk on said common axis;
- and
- centripetal air bleed means comprising air passages passing through the wall and opening out into an annular chamber formed inside the wall and between the disks, and substantially radial fins carried by an annular element fixed to one of the disks and having two axial ends,
- wherein the fins are axially spaced apart from the disks and are substantially in radial alignment with the passages through the wall, each of the fins being connected solely by one of the axial ends to a support fastened to the disk, and each of the fins has another of said axial ends being a free end which extends upstream of said one of the axial ends whereby said free end can be in contact with a first portion of said bleed air leaving the air passages while a second portion of said bleed air can flow between said annular element and the second blade-carrying disk.
1 more element
A turbomachine compressor rotor, comprising:
- at least two blade-carrying disks on a common axis and connected together by a wall forming a substantially cylindrical surface of revolution;
- and
- centripetal air bleed means formed apart from the disks, at an axial distance therefrom, and comprising air passages passing through the wall and opening out into an annular chamber formed inside the wall and between the disks, and substantially radial fins carried by an annular element fixed to one of the disks and having a first axial end and a second axial end,
- wherein the fins are axially spaced apart from the disks and each fin in a substantially radial alignment with the corresponding passage through the wall, each of the fins being connected solely by the first axial end to support means that are fastened to the disk, so that each of the fins has the second axial end being free whereby said second axial end can be in contact with a first portion of said bleed air leaving the air passages while a second portion of said bleed air:
- can flow between the annular element of said fin and the blade-carrying disk the support means of which is fastened to, and
- can pass through said support means.
3 more elements
Dependencies are inferred from the claim text.