Turbomachine compressor rotor including centripetal air bleed means

A turbomachine compressor rotor, comprising:

• at least two blade-carrying disks on a common axis and connected together by a coaxial wall forming a substantially cylindrical surface of revolution;
• 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 one of the disks,
• wherein the fins are axially spaced apart from the disks and are substantially in radial alignment with the passages through the wall, the fins being connected solely at one of their axial ends to a support fastened to the disk.