Accumulator membrane for a hydraulic hammer
An accumulator membrane is disclosed. The accumulator membrane may include a generally cylindrical tube having a side wall with a first end a second end. A lip may be located at the first end, and may form a pocket with the side wall. An extension may protrude from the second end at an angle generally perpendicular to the lip and co-axial with the generally cylindrical tube.
1. An accumulator membrane, comprising:
a generally cylindrical tube having a side wall with a first end and a second end;
a lip located at the first second end and forming a pocket with the side wall; and
an extension protruding from the second first end at an angle generally perpendicular to the lip and co-axial with the generally cylindrical tube, wherein an internal surface of the extension includes at least two radial protrusions.
2. The accumulator membrane of claim 1 , wherein the generally cylindrical tube has a dial ratio equal to about 1.50 to about 3.00.
3. The accumulator membrane of claim 2 , wherein the dial ratio is about equal to 2.09.
4. The accumulator membrane of claim 1 , wherein the extension forms a first angle ratio equal to about 150 to about 450.
5. The accumulator membrane of claim 4 , wherein the first angle ratio is about equal to 294.
6. The accumulator membrane of claim 1 , wherein the second end of the side wall is thicker than the first end.
7. The accumulator membrane of claim 1 , wherein a wall thickness ratio of a thickness of the first end relative to the second end is equal to about 0.60 to about 1.00.
8. The accumulator membrane of claim 7 , wherein the wall thickness ratio is about equal to 0.89.
9. The accumulator membrane of claim 1 , wherein the accumulator membrane is fabricated from a 70 durometer rubber.
10. The accumulator membrane of claim 1 , wherein a second diameter ratio is equal to about 0.40 to about 0.90.
11. The accumulator membrane of claim 1 , further including a generally conical extension formed at the second first end.
12. The accumulator membrane of claim 1 , wherein a thickness profile ratio of the extension is equal to about 1.59 to about 4.77.
13. The accumulator membrane of claim 1 , wherein the extension includes at least two radial protrusions an external surface of the extension includes at least two radial protrusions.
14. The accumulator membrane of claim 1 , wherein a thickness profile ratio of the lip is equal to about 1.59 to about 4.77.
15. The accumulator membrane of claim 1 , wherein the lip includes at least two axial protrusions.
16. The accumulator membrane of claim 1 , wherein the lip substantially forms a J-shape with the cylindrical tube.
17. An accumulator membrane, comprising:
a generally cylindrical tube having a side wall with having a first end and a second end, wherein the second end of the side wall is thicker than the first end;
a lip formed at the first second end; and
an extension formed at the second first end; and
a generally conical extension formed at the second first end.
18. The accumulator membrane of claim 17 , wherein the lip substantially forms a J-shape with the cylindrical tube.
19. An accumulator membrane, comprising:
a generally cylindrical tube having a side wall with a first end and a second end;
a lip formed at the first second end of the side wall and having at least two axial protrusions;
an extension formed at the second first end of the side wall and having at least two axial radial protrusions; and
wherein the accumulator membrane is configured for use with a working tool, and when used with the working tool, the lip is located further from the working tool than the extension.
20. The accumulator membrane of claim 19 , wherein:
the extension includes an extension protrusion ratio of about 1.96; and
the lip includes a lip protrusion ratio of about 1.96.
21. The accumulator membrane of claim 1 , wherein the extension forms an extension protrusion ratio equal to about 1.80 to about 2.20.
22. The accumulator membrane of claim 1 , wherein the extension forms a first height profile ratio equal to about 0.80 to about 1.20.
23. The accumulator membrane of claim 1 , wherein the extension forms a second height profile ratio equal to about 1.80 to about 2.20.
24. The accumulator membrane of claim 15 , wherein the lip forms a lip protrusion ratio equal to about 1.80 to about 2.20.
25. The accumulator membrane of claim 15 , wherein the lip forms a first height profile ratio equal to about 1.00 to about 2.50.
26. The accumulator membrane of claim 15 , wherein the lip forms a second height profile ratio equal to about 2.00 to about 4.00.
27. The accumulator membrane of claim 1 , including a rib on an internal surface of the generally cylindrical tube.