Grit-Dispensing Device for Rail Vehicles

A grit dispensing device for rail vehicles, comprising:

• a grit tank for holding grit;
• a dispensing line for the grit;
• a pressure line;
• a nozzle connected between the pressure line and the nozzle;
• with a compressed air source adapted to be connected to the dispensing line for the grit via the pressure line and the nozzle;
• an intake channel via which the grit can be conveyed from the grit tank into the dispensing line;
• a bypass passage which leads from the pressure line to a point in the dispensing line downstream of a mouth of the intake channel so as to bypass the nozzle and having a passage cross-section;
• a valve for controlling the passage cross-section of the bypass passage;
• and
• an electronic control device for the valve, which is designed to open and close the valve in intervals with a frequency that is adapted to a length of the dispensing line in such a way that grit charges are ejected in individual open periods of the valve and consolidate in the dispensing line to form a steady grit flow.