WELL MULTI-WAY SWITCH Russian patent published in 2018 - IPC F16K11/72 E21B34/02 

FIELD: valves production.

SUBSTANCE: invention relates to valve construction and can be used in various switching the liquids and gases flows devices, in particular in flow switches for borehole fluid and gas flow rate measuring devices, and allows to increase the multi-way borehole switch (MBS) service life by reducing the use of the large number of wear parts in its design. MBS comprises housing with cover, made with inlet openings for the fluid supply branch pipes, located in the housing rotary shaft with clamping carriage with sealing ring, contacting with the horizontal annular grooves made on the housing inner cylindrical surface on both sides of the inlet openings, and connected to the rotary shaft switching member, made in the form of directly mounted on the MBS rotary shaft electric drive, which is fixed to the support, which is by means of posts connected to cover, and is equipped with the built-in electronic position sensor. Electric drive is made with possibility of rotary shaft free movement in both directions and has constructive play ensuring the shaft free running for the carriage rollers guaranteed self-installation into the housing grooves. To adjust the operation, electric drive is also equipped with a flywheel.

EFFECT: increase in the multi-way borehole switch service life.

1 cl, 2 dwg