Patent ID: 7513111
Filing Date: 2009-04-07
Classification: F15B,F16H,Y10T

Abstract:
1. A shock valve assembly for a hydraulic system, comprising: a fluid path extending between a first port and a second port with a shock valve disposed in said fluid path to normally block fluid flow through said fluid path between said first and second ports, said shock valve temporarily opening to permit fluid flow between said first port and said second port through said fluid path when a fluid pressure differential between said ports exceeds a predetermined threshold, fluid flow occurring in a first direction from said first port to said second port through said fluid path when said shock valve is temporarily opened and fluid pressure in said first port is greater than said second port, and fluid flow occurring in a second, reverse direction through said fluid path from said second port to said first port when said shock valve is temporarily opened and fluid pressure in said second port is greater than said first port, wherein an auxiliary fluid passage fluidly connects to said fluid passage at a location between first and second seat portions of said shock valve.