Flow device and method for controlling and / or adjusting a pressure in a pneumatic sand conveyor device for a rail vehicle and a sand conveyor device with a flow device

摘要

A flow device (105) for controlling and / or adjusting a pressure in a pneumatic sand conveyor device for a rail vehicle has at least one pressure chamber (110) and a controllable pressure device (115). The pressure chamber (110) comprises a delivery nozzle interface (120) to a delivery nozzle means (125) for generating a pressure in the pressure chamber (110). The controllable pressure device (115) is coupled to the pressure chamber (110) and configured to generate a pressure to control and / or adjust the pressure in the pressure chamber (110).