Pulsating suction device for periodically producing vacuum to produce mothers milk

摘要

The pulsator has a central injection bore (25) in connection with a back blast, which is located in an injection body (20) concentrically enclosing an annular suction slit (35). The injection bore opens into a small, radial outlet slit which is formed between a radial baffle surface (40) carrying the back blast over the suction slit and ring surfaces (29,30) of the injection body and the injection cladding (13). The rings concentrically enclose the injection bore and the suction slit. The suction slit is connected with a suction line connectable to a receiver (2) via a connection opening (38).