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A hydraulic accumulator is a pressure storage reservoir in which an incompressible hydraulic fluid is held under pressure that is applied by an external source of mechanical energy. The external source can be an engine, a spring , a raised weight , or a compressed gas .
A simple control system for a water well. Referring to the figure on the left, a submersible water pump is installed in a well.The pressure switch turns the water pump on when it senses a pressure that is less than P lo and turns it off when it senses a pressure greater than P hi.
Pages in category "Hydraulic accumulators" The following 6 pages are in this category, out of 6 total. This list may not reflect recent changes. ...
The water jet system's cutting head restricts the water flow to generate pressure and direct it onto the workpiece. A holding tank, called a hydraulic accumulator, is used to reduce pressure vibrations at the output end. The more recently developed parallel hydraulic intensifier also uses oscillating pistons to compress water.
A fluid power system has a pump driven by a prime mover (such as an electric motor or internal combustion engine) that converts mechanical energy into fluid energy, Pressurized fluid is controlled and directed by valves into an actuator device such as a hydraulic cylinder or pneumatic cylinder, to provide linear motion, or a hydraulic motor or pneumatic motor, to provide rotary motion or torque.
[4] [5] Hydraulic "active boost" winches control the oil flow from the pump(s) to the winch so that the target position is reached. Hydraulic winch systems can use accumulators and passive heave compensation to form a semi-active system with both an active and a passive component. In such systems the active part will take over when the passive ...
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)
Hydraulic systems are deceptively simple: the phenomenon of pump cavitation is a known, complex problem that few people outside of the fluid power or irrigation industries would understand. For those who do, the hydraulic analogy is amusing, as no "cavitation" equivalent exists in electrical engineering.