Pneumatic brake device for rail vehicle, has valve structure comprising conical, concave or convex shaped middle portion that is protruded perpendicular to fluid conducting pipe

摘要

The pneumatic braking device has a main air pipe (1) that is indirectly coupled with a control valve (3) of a pneumatic braking cylinder (4), via a fluid-conducting pipe (2). A pneumatic actuator (6) is arranged for regulating pressure and flow control of fluid in fluid-conducting pipe. A valve structure (7) is arranged partially in a valve chamber (8) that is fluidly connected to fluid-conducting pipe such that a conical, concave or convex shaped middle portion (9) of valve structure is protruded perpendicular to fluid conducting pipe.