Hydraulic damper for an electromechanical valve

Abstract

A hydraulic system for an electromechanical valve is provided. The system includes a housing defining a chamber for holding fluid extending along an axis. The system further includes a damper stem disposed in the chamber configured to move along the axis. The damper stem is configured to be directly coupled to the valve member. The system further includes a piston coupled to the damper stem dividing the chamber into a first chamber portion and a second chamber portion. The housing includes a conduit extending between the first chamber portion and the second chamber portion. The conduit has a first non-cylindrical opening communicating with the first chamber portion. When the piston moves past at least a portion of the non-cylinder opening, the cross-sectional area of the opening decreases to restrict fluid flow from the first chamber to reduce a velocity of the piston.

Dependencies are inferred from the claim text.