VARIABLE FLOW POPPET VALVE Russian patent published in 2021 - IPC F16K1/34 F16K17/04 F16K27/02 

FIELD: mechanical engineering.

SUBSTANCE: group of inventions relates to a nozzle for spilling fluid and a variable flow valve. The valve contains an external valve spool containing a valve spool body having a part located upstream and a tapering part of the external spool extending from the part located upstream. It also contains a spool channel passing through the valve spool body, and the spool channel contains the first segment containing the seat of the first stage, and the second segment passing from the first segment. In addition, there is a sleeve containing an upstream end having a stem hole passing through the upstream end and the downstream end, a shoulder extending radially inward and located between the upstream end and the downstream ends. The valve contains an internal valve spool located inside the spool channel and passing into the sleeve through the stem hole, and the inner valve spool contains a head having a tapering part of the inner spool, made with the possibility of coupling with the seat of the first stage, a stem and a cover attached to the stem and located inside the sleeve.

EFFECT: more precise flow control, as well as greater user control over the flow.

20 cl, 8 dwg