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US 2017/0087704 A1Published application
Hydraulic hammer having co-axial accumulator and piston
AssigneeCaterpillar Inc.
InventorCody MOORE
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Abstract
A hydraulic hammer is disclosed having a piston and an accumulator membrane disposed external and co-axial to the piston. Additionally, a sleeve is disposed between the piston and accumulator membrane, wherein the sleeve has a plurality of radial passages formed therein that fluidly connect the accumulator membrane with the piston.
Claims8
A method of operating a hydraulic hammer, comprising:
- receiving pressurized fluid at an inlet;
- directing the pressurized fluid axially into an accumulator membrane;
- redirecting the pressurized fluid radially inward from the accumulator membrane toward a piston;
- and
- biasing the piston upward with the pressurized fluid.
2 more elements
Dependencies are inferred from the claim text.