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US 9,592,598 B2Granted
Hydraulic hammer having impact system subassembly
AssigneeCaterpillar Inc.
InventorCody Moore
Life of this patent
Estimating the term…
Abstract
An impact system for a hydraulic hammer is disclosed. The impact system may include a piston, a sleeve disposed co-axial with the piston, and an accumulator membrane disposed external to the sleeve. A first seal may be located at an end of the sleeve, and configured to connect the sleeve to the piston. The accumulator membrane may have an extension configured to engage a recess in the sleeve.
Claims13
An impact system for a hydraulic hammer, the impact system comprising:
- a piston;
- a sleeve disposed co-axial with the piston;
- a first seal located at an end of the sleeve and configured to connect the sleeve to the piston;
- an accumulator membrane disposed external to the sleeve and having an extension configured to engage a recess in the sleeve;
- a seal carrier disposed co-axial with the piston, wherein a cavity is formed between the sleeve and the piston, and between the seal carrier and the piston;
- a valve trapped within the cavity such that the sleeve surrounds a bottom portion of the valve and the seal carrier surrounds a top portion of the valve;
- and
- a sleeve liner assembled within the accumulator membrane, the sleeve being assembled within the sleeve liner, and the piston being assembled within the sleeve, all of the sleeve liner, the sleeve, the accumulator membrane, and the piston, being generally co-axial with each other such that the impact system is removable from the hydraulic hammer as an integral unit.
5 more elements
An impact system for a hydraulic hammer, the impact system comprising:
- a piston;
- a sleeve disposed external to the piston by way of slip-fit radial tolerances;
- a first seal located at a first end of the sleeve and configured to connect the sleeve to the piston;
- an accumulator membrane disposed external to the sleeve and having an extension configured to engage a recess in the sleeve;
- a seal carrier disposed external to the piston by way of slip-fit radial tolerances, wherein a cavity is formed between the sleeve and the piston, and between the seal carrier and the piston;
- a valve trapped within the cavity such that the sleeve surrounds a bottom portion of the valve and the seal carrier surrounds a top portion of the valve;
- a second seal located at a second end of the sleeve and configured to connect the seal carrier to the piston;
- and
- a sleeve liner assembled within the accumulator membrane, the sleeve being assembled within the sleeve liner, and the piston being assembled within the sleeve, all of the sleeve liner, the sleeve, the accumulator membrane, and the piston, being generally co-axial with each other such that the impact system is removable from the hydraulic hammer as an integral unit.
6 more elements
Dependencies are inferred from the claim text.