Browse Prior Art Database

Publication Date: 2016-Jul-13
Document File: 7 page(s) / 155K

Publishing Venue

The Prior Art Database


The hydraulic accumulator pressure stabilization system and method of the present disclosure enables pressure stabilization within a small-volume accumulator for a static fluid system at high hydraulic pressures (e.g., 600 to 1000 bar) with very little to no fluid consumption. An accumulator is wrapped with a capillary substance. The capillary substance will soak up or wick away a cooling medium that is continuously supplied from an external source to a cooling liquid tray in contact with the capillary substance. The capillary substance will transport the cooling medium to around the wrapped accumulator. The cooling medium will evaporate when exposed to the sun's heat radiation, and the evaporation will cause the accumulator to cool down. Hence, the temperature in the hydraulic accumulator will not rise above the ambient temperature, thus eliminating overpressure due to sun exposure and allowing the pressure in the accumulator to be maintained. A shield, including an adjustable portion, may be included for further temperature control.

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[0001]This section is intended to introduce the reader to various aspects of art that may be related to various aspects of the presently described embodiments. This discussion is believed to be helpful in providing the reader with background information to facilitate a better understanding of the various aspects of the described embodiments. Accordingly, it should be understood that these statements are to be read in this light and not as admissions of prior art.

[0002]A hydraulic accumulator is a pressure storage reservoir in which a non- compressible hydraulic fluid is held under pressure by an external source. The external source can be a spring, a raised weight, or a compressed gas, for example. An accumulator is a type of energy storage device that enables a hydraulic system quickly to a temporary demand, and to smooth out pulsations. In any industry using high pressure hydraulic systems, such a static hydraulic system may be sensitive to temperature variations. In particular, at high hydraulic pressures and small volumes, the external or ambient temperature may have a significant effect on the system pressure. Therefore, in order to maintain a stable static pressure and a functional hydraulic accumulator, temperature control is of importance.

Brief Description of the Drawings

[0003]For a detailed description of embodiments of the present disclosure, reference will now be made to the accompanying drawing in which:

[0004]FIG. 1 depicts a photographic view of a hydraulic accumulator system with stabilization via temperature control in accordance with one or more embodiments of the present disclosure.

Detailed Description


to cope with extremes of demand using a less powerful pump, to respond more

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[0005] One or more specific embodiments of the present disclosure will be

described below. In an effort to provide a concise description of these

embodiments, all features of an actual implementation may not be described in the

specification. It should be appreciated that in the development of any such actual

implementation, as in any engineering or design project, numerous

implementation-specific decisions must be made to achieve the developers'

specific goals, such as compliance with system-related and business-related

constraints, which may vary from one implementation to another. Moreover, it

should be appreciated that such a development effort might be complex and time-

consuming, but would nevertheless be a routine undertaking of design, fabrication,

and manufacture for those of ordinary skill having the benefit of this disclosure.

[0006]The drawing figure is not necessarily to scale. Certain features of the embodiments may be shown exaggerated in scale or in somewhat schematic form, and some details of conventional elements may not be shown in the interest of clarity and conciseness. Although one or more of these embodiments may...