Patent ID: 7258134
Filing Date: 2007-08-21
Classification: F15B,F16K,Y10T

Abstract:
1. A valve for use in regulating the flow of fluid between a first fluid side and a second fluid side in a hydraulic circuit, the valve comprising: a valve body having a first end and a second end and an aperture extending from a first opening formed on the first end to a second opening formed on the second end; a valve insert slidably positioned within the valve body, the valve insert comprising a first end and a second end which forms a valve stop, wherein the valve stop cooperates with an edge of the second valve body opening to limit the movement of the valve insert in a first direction; a check poppet attached to the first end of the valve insert, wherein the check poppet is selectively, sealably engaged to the valve body to limit movement of the valve insert in a second direction opposite the first direction, the check poppet comprising a poppet opening; a cylinder slidable within the valve insert; a cylinder flange located at one end of the cylinder; a spring positioned between the cylinder flange and the valve insert, wherein the spring biases the cylinder toward the check poppet; a piston slidably positioned within the cylinder and selectively engaged to the check poppet opening, the piston comprising a first end and a second end; and an accumulator formed between the piston and the cylinder proximate to second end of the piston.