PRESSURE ACCUMULATOR

• US 20140299609A1
• Filed: 10/18/2012
• Published: 10/09/2014
• Est. Priority Date: 10/20/2011
• Status: Active Grant

• Current Assignee: Hydac Technology Gmbh (HYDAC International GmbH)
• Original Assignee: Hydac Technology Gmbh (HYDAC International GmbH)
• Inventors: Baltes, Herbert, Kloft, Peter
• Granted Patent: US 9,945,393 B2
• Time in Patent Office: Days
• US Class Current: 220/581
• CPC Class Codes: F15B 1/04 Accumulators
• CPC Class Codes: F15B 1/086 the gas cushion being entirely enclosed by the separating means, e.g. foam or gas-filled balls
• CPC Class Codes: F17C 1/00 Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge pressurised apparatus for purposes other than storage, see the relevant subclasses such as A62C, B05B; associated with vehicles, see the appropriate subclass of classes B60 - B64; pressure vessels in general F16J12/00 ; autoclaves B01J3/04; tank vehicles B60P3/22; railway tank wagons for carrying fluent materials B61D5/00; accumulators for supplying fluid under pressure F15B1/04; liquefied gas stoves F24C3/00

Abstract

The invention relates to a pressure accumulator which consists of at least one accumulator housing (103) with at least one connection (111; 113) for a pressure medium (149), especially in the form of a fluid that can be accumulated in the accumulator housing (103), a filling material (119) that has hollow chambers or that forms at least one hollow chamber for accommodating at least part of said pressure medium (149) being introduced into at least sections of the accumulator housing (103). The pressure accumulator according to the invention is characterized in that an interior (117) of the accumulator housing (103) is completely filled with the filling material (119) to such an extent that the filling material (119) contacts the entire surface of a wall (120) of the accumulator housing (103).

Claims

1. A pressure accumulator consisting of at least one accumulator housing (103), which has at least one connection (111, 113) for a pressure medium (149), in particular in the form of fluid that can be stored in the accumulator housing (103), wherein a filling material (119), which has cavities or forms at least one cavity for at least partial accommodation of this pressure medium (149), is introduced at least partially into the accumulator housing (103), characterized in that an interior (117) of the accumulator housing (103) is filled completely with the filing material (119), so that the filling material (119) contacts a wall (120) of the accumulator housing (103) over the full area.

2. The pressure accumulator according to claim, 1, characterized in that the filling material (119) together with its cavities is formed from a sintered material and/or from a cellular material such as a foam (metal foam, polyurethane foam), a gel or a woven or nonwoven textile or a comparable textile material.

3. The pressure accumulator according to claim 1, characterized in that the filling material (119) is elastically compressible.

4. The pressure accumulator according to claim 1, characterized in that the density of the filling material (119) within the pressure accumulator varies, in particular having a cluster structure or a sandwich-type structure.