Hydraulic hammer internal damping
AssigneeCaterpillar Inc.
InventorsCody T. Moore, John K. Clemons
Life of this patent
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Abstract
A hydraulic hammer includes: a cylinder having a first cylinder end and a second cylinder end opposite the first cylinder end; a piston disposed within the cylinder, the piston having a first piston end, the piston being reciprocatingly movable with respect to the cylinder along an axial direction; a valve body disposed on the first cylinder end so as to define a valve body cavity; and a seal carrier sealingly arranged between the first piston end and the first cylinder end and being reciprocatingly movable with respect to the cylinder along the axial direction. The piston is reciprocatingly movable with respect to the seal carrier along the axial direction.
Claims18
A hydraulic hammer, comprising:
- a cylinder having a first cylinder end and a second cylinder end opposite the first cylinder end;
- a piston disposed within the cylinder, the piston having a first piston end, the piston being reciprocatingly movable with respect to the cylinder along an axial direction;
- a valve body disposed on the first cylinder end so as to define a valve body cavity;
- and
- a seal carrier sealingly arranged between the first piston end and the first cylinder end and being reciprocatingly movable with respect to the cylinder along the axial direction,
- wherein the piston is reciprocatingly movable with respect to the seal carrier along the axial direction,
- wherein positioning the seal carrier between the first piston end and the first cylinder end creates a piston receiving space between the first piston end and a damping fluid reservoir within the valve body cavity, and
- wherein the seal carrier fluidically separates the damping fluid reservoir from the piston receiving space.
A damping system for a hydraulic hammer, comprising:
- a cylinder;
- a piston movably disposed within the cylinder;
- a seal carrier arranged between a first end of the cylinder and a first end of the piston, the seal carrier providing a sealing of the piston with respect to the cylinder, the seal carrier being movable with respect to the cylinder along an axial direction of the damping system;
- and
- a valve body disposed on the first end of the cylinder,
- wherein the piston is movably disposed with respect to the seal carrier along the axial direction,
- wherein the valve body defines a valve body cavity,
- wherein positioning the seal carrier between the first piston end and the first cylinder end creates a piston receiving space between the first piston end and a damping fluid reservoir within the valve body cavity, and
- wherein the seal carrier fluidically separates the damping fluid reservoir from the piston receiving space.
Dependencies are inferred from the claim text.