Single acting hydraulic cylinder with head end cushioning

Abstract

The disclosure herein relates to a single acting hydraulic cylinder () configured to provide a smooth extension stroke of a piston (). The cylinder () includes a piston rod () connected to the piston (), wherein the piston rod () has a plurality of orifices () defined at pre-determined positions, and the piston () has a groove () defined in fluid communication with the orifices () and a fluid gallery () defined in the piston (). The orifices allow fluid to flow from an annular side chamber () to a full-bore side chamber () via the fluid gallery at end of extension stroke, to gradually dampen impact of the piston () with a cylinder head end cover (). The cylinder prevents jolts and jerks in a hydraulic system, provides better control, and ease in operation.