GATE VALVE WITH STRICTION DRIVE IN GATE Russian patent published in 2021 - IPC F16K31/04 H02N2/02 

FIELD: valves devices.

SUBSTANCE: invention relates to devices for valves and is designed to open and close the flow of a fluid in a pipeline. It can be used in industry in pipeline transport systems and in everyday life. The device contains a housing and a locking element. To move the runner, a linear stepping striction electric motor is used, which contains the runner located in the channel of the shut-off element. The direction of the channel of the shut-off element coincides with the direction of movement of the shut-off element when opening or closing the valve. The runner is connected to the body from the outside by the rod. The runner consists of a front striction spacer section, a running striction section, and a rear striction spacer section connected in series. The stem is tubular. The inner hole of the tubular rod communicates with the space surrounding the valve. An electrical cable connects the voltage control device and the runner through the inner hole of the tubular rod.

EFFECT: reducing the likelihood of going out to repair the valve due to damage to the cable cores inside the valve body.

8 cl, 7 dwg