Rotary Check Valve

摘要

A rotary check valve is disclosed having sealing surfaces between two sealing members that engage with a rotating shearing motion. The rotating shearing motion may shear debris between the sealing members and minimize or eliminate blockage of fluid passageways in the sealing members. In a closed position, the upper sealing member and lower sealing member are rotated such that fluid passageways in the upper sealing member and fluid passageways in the lower sealing member are not aligned and blocked by the sealing surfaces. The sealing members of the rotary check valve may be biased to a closed position via a spring.

主权项

1. A valve, comprising:
a housing disposed around an axis; a first rotating member disposed within the housing and configured to rotate around the axis in a first circumferential direction, the first rotating member having a first sealing surface and at least one first fluid passageway; a second rotating member disposed within the housing and coaxial to the first rotating member, the second member configured to rotate around the axis in a second circumferential direction opposite the first circumferential direction, the second member having a second sealing surface comprising at least one second fluid passageway; wherein when the valve is in a closed position, the first sealing surface engages the second sealing surface to close the at least one first fluid passageway and at least one second fluid passageway; and wherein when the valve is in an open position, the first rotating member and the second rotating member are rotated such that the at least one first fluid passageway and at least second fluid passageway are aligned.