Brief description of embodiments of a wheel has blades closed and the wheel obtained by means of this

摘要

1. Process for constructing a closed bladed wheel, in which there are prepared a first disc (1) forming a hub and a second disc (2) or end plate by equipping them with blades (3) and the two discs (1 and 2) equipped with blades (3) are secured to one another, and there are provided on one of the discs (1 and 2) projecting elements (4, 6, 7, 8, 9) which are capable of cooperating with corresponding elements (2, 5) on the other disc which are suitable for receiving the projecting elements (4, 6, 7, 8, 9) with clamping, and the discs (1 and 2) are assembled so as to cause the projecting elements (4, 6, 7, 8, 9) of one disc to engage with the elements (2, 5) of the other disc, characterized in that the clamping is carried out by means of a shrinking on which is obtained by previously heating one of the two discs (1 or 2).