Patent ID: 9562435
Date: 2017-02-07
CPC Classifications: F01D,F02B,F04F

Claim:
1. A cellular wheel made of metal, comprising an outer sleeve arranged coaxial to a rotational axis, an inner sleeve arranged coaxial to the outer sleeve, at least one intermediate sleeve arranged between and coaxial to the outer sleeve and the inner sleeve, fins that are arranged between successive sleeves and are aligned substantially radially with regard to the rotational axis and joined with adjacent sleeves, outer sealing sleeves that engage over the outer sleeve and are joined with the outer sleeve and have a sealing profile for a labyrinth seal, and a drive shaft that lies in the rotational axis, wherein the cellular wheel has two end faces; and wherein at least the outer sleeve, the inner sleeve and/or the intermediate sleeve or at least one of the intermediate sleeves have notches extending, between adjacent fins, from both end faces of the cellular wheel.