Patent ID: 8500177
Filing Date: 2013-08-06
Classification: B61C

Abstract:
1. A system for spreading grit ( 4 ) in front of wheels ( 2 ) of vehicles ( 1 ), particularly rail vehicles, said system including at least one container ( 3 ) for the grit ( 4 ), at least one device ( 5 ) arranged below each grit container ( 3 ) for metering the grit ( 4 ) with an outlet opening ( 6 ) for dispensing the metered grit ( 4 ), and at least two devices ( 7 ) for conveying the metered grit ( 4 ) via at least two conveyor lines ( 8 ) to a vehicle wheel ( 2 ), wherein the at least two devices ( 7 ) are associated to the metering device ( 5 ), wherein the metering device ( 5 ) is formed by a cellular wheel control comprising a rotatable cellular wheel or by a piston control mechanism comprising an axially displaceable piston or by a frequency controller comprising a lifting magnet, wherein the conveying devices ( 7 ) associated to the metering device ( 5 ) are comprised of a pneumatically operated multiple injector ( 13 ) including at least two separate cavities ( 10 ) for dispensing the metered grit ( 4 ), a compressed-air connection ( 11 ) per cavity ( 10 ), and a connection ( 12 ) for the conveyor line ( 8 ) each located opposite the compressed-air connection ( 11 ) of each cavity ( 10 ), said multiple injector ( 13 ) being arranged below the outlet opening ( 6 ) of the metering device ( 5 ).