SANDER SYSTEM Russian patent published in 2014 - IPC B61C15/10 

FIELD: process engineering.

SUBSTANCE: invention relates to sanders for railway vehicles. Proposed system comprises at least one bin (3) for loose material, at least one loose material batcher (5) arranged under every bin (3) to batch loose material (4) portions via opening (6) and loose material (4) feeder (7) to dispense said material via pipe (8) to vehicle wheel (2). Note here that at least two batched loose material feeders (7) are connected to batcher (5) via two feed pipes (8). Said feeders (7) connected to batcher (5) are composed of air-operated multiposition injector (13) with at least two cavities (10) for loading of batched loose material connected with compressed air feed to every cavity (10) and opposite compressed air joint (11) of every cavity (10) and feed pipe (8) joint (12). Note also that multiposition injector (13) is arranged above outlet (6) of proportioner (5).

EFFECT: simplified design, lower assembly and servicing costs.

7 cl, 16 dwg