Patent ID: 7509948
Filing Date: 2009-03-31
Classification: F01L,F02M,F16K,Y10T

Abstract:
1. A spacer for use with a fluid device having a valve member connected to a movable member and extending through a stationary member, the stationary member having a valve seat for receiving a sealing surface of the valve member, the movable member being movable toward and away from the stationary member for seating and unseating the sealing surface of the valve member in and out of the valve seat, the spacer comprising: a generally ring-shaped body with first and second facing surfaces separated by a thickness and inner and outer concentric edges, the spacer positioned between the movable member and the stationary member such that the first facing surface is contactable with the movable member and the second facing surface is contactable with the stationary member, the spacer having at least one fluid receiving groove formed in at least one of the first and second facing surfaces extending axially from one of the first and second facing surfaces through a portion of the thickness, the groove radially extending inwardly from the outer edge.