Patent ID: 8636263
Filing Date: 2014-01-28
Classification: F02C,F16K,Y10T

Abstract:
1. A pressure actuated valve assembly comprising: a) a valve body defining a longitudinal axis and having opposed upstream and downstream end portions, the valve body including a valve member mounted therein for axial movement along the longitudinal axis between a closed condition and an open condition, the downstream end portion of the valve body including a circumferential groove; b) a main spring having opposed upstream and downstream end portions, the downstream end portion of the main spring being engaged with the downstream end portion of the valve body, the main spring being axially aligned with the valve body; c) a main spring guide engaged with the upstream end portion of the main spring proximate the upstream end portion of the valve body, the main spring guide mounted for movement toward the downstream end portion of the valve body by compression of the main spring; d) a hold-down sleeve engaged with the downstream end portion of the valve body and including a stop structure proximate the main spring guide, the stop structure configured to engage the main spring guide to maintain a predetermined minimum clearance between the main spring guide and the valve member with the valve body in the closed condition, wherein the hold down sleeve includes a cleat engaged with the circumferential groove of the valve body; and e) a housing engaged outboard of the hold-down sleeve preventing movement of the cleat radially outward from the circumferential groove.