Patent ID: 8684037
Filing Date: 2014-04-01
Classification: F15B,Y10T

Abstract:
1. A poppet valve assembly comprising: a body including a first axial end portion and a second axial end portion, the first axial end portion having a tapered surface adapted for sealing engagement with a valve seat, the second axial end portion including a circumferential surface defining an axially extending metering slot, the second axial end portion including a spring guide that extends outwardly from an end surface along a central longitudinal axis of the body, the body defining a passage that includes an opening in the first axial end portion and is in fluid communication with the metering slot, the passage including a check valve seat; a check valve disposed in the passage, the check valve being laterally offset from the central longitudinal axis, the check valve being adapted to sealingly engage the check valve seat; and a valve housing defining a valve bore in which the body is received, the valve housing defining the valve seat, the metering slot cooperating with the valve housing to define a metering opening at the second axial end portion of the body when the body is offset from the valve seat, the metering opening being completely closed when the body is seated on the valve seat, the metering opening allowing fluid to pass therethrough when the body is offset from the valve seat, the body defining a fixed size orifice that extends from an end of the metering slot to the end surface of the second axial end portion of the body, and the check valve being configured to allow fluid to flow through the passage from the check valve seat toward the metering slot and the fixed size orifice and to prevent fluid from flowing through the passage from the metering slot and the fixed orifice toward the check valve seat.