| 摘要 |
The invention relates to an impeller for feeding, into the shot-blasting wheel of a blasting installation, a blasting abrasive that is to be accelerated. Said impeller can be arranged in the central region of the shot-blasting wheel inside a distributor sleeve (12) with a discharge opening (22), and has, on at least one lateral disc (24), guiding elements (20a, 20b) for guiding the blasting abrasive towards the outside, each of said guiding elements (20a, 20b) having two lateral surfaces (26a, 26b) which, with guiding elements (20a, 20b) adjacent to the lateral surfaces (26a, 26b), form channels (18) through which the blasting abrasive can be discharged towards the outside. One or each of the guiding elements (20a, 20b) has an upper side (34a, 34b) that connects the outer ends (32a, 32b) of the two lateral surfaces (26a, 26b) of the guiding element (20a, 20b) to one another, and that has at least one section (38a, 38b, 40, 42 a-c) which is arranged in or above an imaginary, non-curved reference plane (36) connecting the lateral surfaces (26a, 26b) of the guiding element (20a, 20b) to one another, likewise at their outer ends. |
