MULTIPLICATIVE SPOOL PULINTER OF THE ALTERNATE MILKING UNIT Russian patent published in 2019 - IPC A01J5/10 

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, in particular to pulsators of milking machines of alternate milking. Multiplicative spool pulsator includes fixed stator (3) equipped with n uniformly distributed in circumferential direction windows, and sliding along it rotor (1), equipped with mn+1 or mn-1 uniformly distributed in circumferential direction windows (2) for direct or reverse pulsation respectively, where m is any natural number. Total angular value of rotor and stator windows γ=γ_r+γ_s must satisfy condition γ≤nδ, where δ=2π/n/(mn+1) – for direct pulsation, δ=2π/n/(mn-1) – for the return, respectively. Window of angular value stator γ_s are equipped with n connection pipes (4) for connection with pulsation chambers of teat cups. Rotary spool of rotor is made two-sectional. Vacuum section (7) has windows of angular value γ_r=nδa/(a+b)-γ_s, and atmospheric (8) – γ_r=nδb/(a+b)-γ_s, where a and b are ratio of rarefaction and compression strokes. These sections of rotor-slide valve are turned relative to each other by angle nδa/(a+b) and separated by bearing circular plate.

EFFECT: higher functionality, reliability and durability of pulsator.

1 cl, 9 dwg