Abstract: An air starter for turbomachine, including a forward casing, an aft casing, an annular exhaust flow path opening up between an aft end of the forward casing and a forward end of the aft casing, and a cylindrical outlet mesh of the exhaust flow path is disclosed. The forward and aft ends of the outlet mesh include devices for axially retaining the forward casing and the aft casing respectively to the mesh. At least one of the devices for axially retaining one of the casings to the mesh enables a relative rotation of the mesh and this casing.

Abstract: Air starter for turbomachine, comprising a forward casing (12), an aft casing (14), an annular exhaust flow path (32) opening up between an aft end of the forward casing and a forward end of the aft casing, and a cylindrical outlet mesh (44) of the exhaust flow path (32) the forward and aft ends of which comprise means (48, 52) of axially retaining the forward casing (12) and the aft casing (14) respectively to the mesh (44), wherein at least said means (52) of axially retaining one (14) of the casings to the mesh (44) enable a relative rotation of the mesh (44) and this casing (14).