WELL MULTI-WAY SWITCH Russian patent published in 2017 - IPC F16K11/85 E21B34/02 

FIELD: oil and gas industry.

SUBSTANCE: well multi-way switch contains a body with radial type holes for the working fluid feed pipes connection, the cover mounted on the body, inside which the rotating hollow shaft is placed along the longitudinal axis. The shaft is connected to the measurement channel, formed as a tee, and a movable carriage, which is fixed by means of rollers and spring opposite to each liquid supply pipe. On the inner working surface of the body, the arc inserts with radial holes are mounted, coinciding with the radial holes in the body. The tee is arranged between the upper and lower end stops, formed on the hollow shaft, and communicates with the hollow cylinder. The movable carriage with rollers is installed on the cylinder. The cylinder is rigidly fixed in the plate hole, connected to the upper and lower end stops, by means of the cranks installed on them. At the upper end stop there is the pin with the ability to be located in the tee groove. On the both end stops there are balls uniformly positioned along the perimeter with ability to rotate around the shaft axis of the tee.

EFFECT: increase of durability and reliability in operation, ease of the maintenance and repair, ensuring high performance characteristics of the switch.

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