| 主权项 |
1. A pneumatic product sorting apparatus (1, 70) comprising:
at least a solenoid valve (3, 3′) having a hollow body (15) defining at least one inlet orifice (4) for a pressurized fluid, a plurality of outlet orifices (6) for said fluid, and a plurality of conveying channels (5) for conveying said fluid from said inlet orifice (4) to respective said outlet orifices (6), said solenoid valve (3, 3′) also comprising, for each said conveying channel (5), an interception element (27) housed inside said body (15) and selectively movable between a closed configuration, in which it interferes with the respective said conveying channel (5) preventing said fluid from passing through it, and an open configuration, in which it leaves free the respective said conveying channel (5) allowing said fluid to pass through it; at least one ejection head (7) having a plurality of firing nozzles (8) that is selectively activated for emitting respective pressurized fluid jets directly on products to be selected; and a plurality of connecting conduits (10) connecting each firing nozzle (8) with a corresponding outlet orifice (6) of said solenoid valve (3, 3′, 3′); wherein said ejection head (7) is formed by a cover (50) of the body (15) of said solenoid valve (3, 3′), characterized in that said connecting conduits (10) are formed in said cover (50) and in that at least two of said connecting conduits (10) have different lengths and identical volumes from said outlet orifices (6) of said solenoid valve (3, 3′) to the respective firing nozzles (8). |
