SHUTTLE VALVE WITH DAMPING Russian patent published in 2022 - IPC F16K11/02 F15B13/02 

FIELD: sanitary equipment.

SUBSTANCE: shuttle valve includes: a valve body in which a first longitudinal channel is formed and which comprises a first inlet opening, a second inlet opening and an outlet opening; box, which is located in the first longitudinal channel coaxially with the valve body and in which the second longitudinal channel is formed, wherein the outlet is in fluid communication with the annular region formed between the outer peripheral surface of the box and the inner peripheral surface of the valve body; a pin extending in the longitudinal direction in the second longitudinal channel at the end of the box near the first inlet; and a slide valve configured to move in an axial direction in a second longitudinal channel between a first and a second position. Slide valve includes a blind hole made at its end facing the pin and coaxially with it in such a way that as the slide valve is displaced from the second position to the first position, a part of the pin is placed in the blind hole of the slide valve.

EFFECT: smoothing the movement of the locking element inside the shuttle valve improves the dynamics of the corresponding hydraulic or pneumatic system, reducing pressure surges caused by switching the shuttle valve from one source to another.

13 cl, 12 dwg