GATE VALVE WITH AN INTERNAL STRICTIONAL DRIVE Russian patent published in 2022 - IPC F16K31/04 H02N2/02 

FIELD: engineering elements.

SUBSTANCE: proposed invention relates to shutoff valving apparatuses and is intended for opening and closing the flow of a fluid medium in a pipeline. The invention can be used in the industry in pipeline transport systems and in households. The apparatus comprises a body and a shutoff element. For moving the runner, a linear stepping strictional electric engine is applied, containing a runner located in the channel of the shutoff element. The direction of the channel of the shutoff element matches with the direction of movement of the shutoff element when opening or closing the gate valve. The runner is connected with the means for movement thereof, secured on the outside of the body, by a rod. The runner consists of a front strictional spacer section, a running strictional section, a back strictional spacer section, connected in series.

EFFECT: reduction in the probability of the gate valve being put for repair due to the inability of opening and/or closing the valve.

9 cl, 7 dwg