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At the end of the article is this sentence: "The gas precharge in an accumulator is set so that the separating bladder, diaphragm or piston does not reach or strike either end of the operating cylinder. The design precharge normally ensures that the moving parts do not foul the ends or block fluid passages." For a bladder style accumulator this is misleading. While it may be true for desired operational longevity, the bladder can and will contact the fluid port assembly if the fluid pressure is low enough. Check the various manufacturer's websites. When rebuilding the accumulator a small amount of pressure is put into the bladder to insure that the anti-extrusion ring and fluid port are seated correctly. It does this by expanding to fill the entire bladder and pushing down on the fluid port assembly. MMdelaIntec 20:08, 11 September 2007 (UTC)
correction: hooke's law is linear. the restorative force is directly proportional to excursion.
Doesn't pumped reservoir storage count as a hydraulic accumulator? (It would be basically a dead weight/raised weight accumulator, except that all of the dead weight is that of the fluid itself.) Lchiarav 05:25, 3 April 2006 (UTC)
No that is not. An accumulator should be able to store a considerable amount of energy. An oil tank does hardly store energy. Jeff 11:46, 25 March 2007 (UTC)
I think he is talking about Pumped-storage hydroelectricity. It stores energy, but in this article it is twice excluded by the definition: "a pressure storage reservoir in which a non-compressible hydraulic fluid is held under pressure by an external source", and again by one of the purposes (presenting a more even load to the hydraulic pumps). Pumped storage uses a vast open mostly-natural reservoir, with no artifice pushing down on it. The pressures could be quite high (200ft drop), but the water is never used for a hydraulic power system, only to continuously run turbines for electrical generators.
Note, the "hydraulic engine house" example in the article also violates one part of the definition by not using any pressure on top of the water, but: the tank is man-made, and the hydraulic pressure is used for intermittent direct work, not a generating plant. Whiner01 04:37, 23 October 2007 (UTC)
See also Jean Mercier. Scottcmu 16:21, 31 October 2006
I see that a spring type hydraulic accumulator is mentioned. I wonder whether this type of accumulator was ever used. Anyway, I do not know one application. Reason is that the amount of energy that can be stored in a spring driven hydraulic accumulator is negligible. So it is better to delete this item. Jeff 11:46, 25 March 2007 (UTC)
I removed the following section as it does not really belong in an encyclopedia. It looks to have come from a user manual or product blurb. It obviously does not apply to all types of accumulator, yet it doen't readily fit with any that are described.
I've left it here for someone more knowledgeable to process appropriately.
EdJogg ( talk) 11:58, 2 April 2008 (UTC)
<<<START>>>
Ideal Conditions:-
For other conditions see A and B.
Where ideal conditions of storage cannot be met, they have an expected shelf life of 5 to 6 years if they are stored under the following conditions:-
Where ideal conditions of storage cannot be met they have an expected shelf life of 2 to 3 years if they are stored under ideal conditions.
Rubber products, not stored properly, will be subjected to attack from ozone, heat and UV light. Cracking will develop within one year.
<<<END>>>
On 05:25, April 22, 2012 213.132.61.74 made this edit:
I reverted the edit, but the comment may have merit. If someone understands the nature of the objection, feel free to comment on whether any correction of the article if necessary or not, or make the update. Thanks. J JMesserly ( talk) 18:28, 5 May 2012 (UTC)
I think this is due to a misunderstanding. The working fluid is a liquid and is incompressible. The gas, which is compressible, is merely a means of exerting force, like a spring or a weight. Biscuittin ( talk) 11:54, 29 August 2013 (UTC)
This entire section is part of an advertisement campaign for an intellectual property product that is for sale on the citation web page. It exists to lead people back to the web page where it is being sold. There are no citations, besides the one from the seller; and that page is for selling the technology while keeping any educational description hidden as intellectual property. 98.209.228.228 ( talk) 20:15, 18 May 2014 (UTC)
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A person knowing few bits of physics can realize that pressurization of an incompressible liquid can’t store mechanical energy. The pressure volume work is determined with so what can we see where ? Incnis Mrsi ( talk) 12:42, 5 September 2018 (UTC)
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