Compressor and turbine wheel for a secondary air feed device
AssigneeDaimler AG
InventorsPeter Fledersbacher, Hans-Georg Lehmann, Martin Schlegl, Holger Stark
Life of this patent
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Abstract
In a compressor and turbine wheel for a secondary air feed device formed as a single component, a rotor which includes a center disc structure consisting of at least two discs of different materials is provided at one side with compressor blades and on the opposite side with turbine blades, and the discs consist of an alloy based on Al, Mg, Ti, Fe, or Ni and are preferably arranged in axially spaced relationship with a disc carrier of a plastic material disposed in the space between the two bladed discs.
Claims11
A compressor and turbine wheel for a secondary air feed device, comprising a single common component (1) which forms a combined compressor wheel and turbine wheel, the common component being designed in the form of a rotor (1) which carries compressor blades (3) on one side (12) and turbine blades (4) on an opposite side (11) of the rotor, the rotor (1) consisting of at least two materials, a metallic material and a plastic, wherein the metallic material is an alloy based on at least one of Al, Mg, Ti, Fe, Ni, in the form of one of a metal sheet, foil or casting, and the plastic is one of PEEK, PA, PFA, PPS and foams of plastic materials, and wherein the rotor (1) comprises two spaced blade discs (15) with a blade disc carrier (16) of a plastic material being disposed in the space between the two blade discs (15).
Dependencies are inferred from the claim text.