Pressure accumulator

Patent metadata

Field	Value
Publication number	US-9422945-B2
Application number	US-201213261840-A
Country	US
Kind code	B2
Filing date	Oct 18, 2012
Priority date	Oct 20, 2011
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

Abstract

A pressure accumulator has at least one accumulator housing ( 403 ) with at least one connection ( 411 ) for a pressure medium ( 421 ), especially in the form of a fluid that can be accumulated in the accumulator housing ( 403 ). The filling material ( 419 ) has hollow chambers or forms at least one hollow chamber for accommodating at least part of pressure medium ( 421 ) and/or at least one further pressure medium ( 449 ) introduced into at least sections of the accumulator housing ( 403 ).

First claim

The invention claimed is:

1. A pressure accumulator, comprising:
at least one accumulator housing having first and second connections for first and second pressure mediums, respectively, stored in said accumulator housing;
a filling material at least partially introduced into said accumulator housing, said filling material having cavities at least partially accommodating at least one of the pressure mediums, said filling material including different sections having different materials with different densities and cavity structures therein, each of said different materials having said cavities therein; and
at least one elastomeric separation diaphragm subdividing an interior of said accumulator housing into at least first and second working spaces, said first working space accommodating first pressure medium, said second working space accommodating the second pressure medium, said separation diaphragm at least partially enclosing said filling material in at least one of said working spaces.

2. A pressure accumulator according to claim 1 wherein
said first pressure medium is a liquid; and
said second pressure medium is a working gas.

3. A pressure accumulator according to claim 2 wherein
said gas working comprises nitrogen gas.

4. A pressure accumulator according to claim 2 wherein
said filling material is in said second working space and is at least partially in direct contact with a side of said separation diaphragm.

5. A pressure accumulator according to claim 2 wherein
said accumulator housing comprises at least first and second housing parts joined together to secure said separating diaphragm therebetween, said first housing part having a said second connection to said second working space.

6. A pressure accumulator according to claim 5 wherein
said housing parts are connected to one another by a threaded connection.

7. A pressure accumulator according to claim 6 wherein
said threaded connection comprises a union nut part.

8. A pressure accumulator according to claim 1 wherein
said filling material comprises a cellular foam material.

9. A pressure accumulator according to claim 1 wherein
said filling material is elastically compressible.

10. A pressure accumulator according to claim 1 wherein
said densities vary in a cluster design.

11. A pressure accumulator according to claim 1 wherein
said densities vary in a sandwich design.

12. A pressure accumulator, comprising:
at least one accumulator housing having first and second connections for first and second pressure mediums, respectively, stored in said accumulator housing;
at least one elastomeric separation diaphragm subdividing an interior of said accumulator housing into at least first and second working spaces, said first working space accommodating the first pressure medium, said second working space accommodating second pressure medium; and
filling material introduced in said accumulator housing in both of said first and second working spaces, said filling material having different materials with different densities and cavity structures therein, each of said different materials having cavities therein.

13. A pressure medium according to claim 12 wherein
said first pressure medium is a liquid; and
said second pressure medium is a working gas.

14. A pressure accumulator, comprising:
at least one accumulator housing having first and second connections for first and second pressure mediums, respectively, stored in said accumulator housing;
a filling material at least partially introduced into said accumulator housing, said filling material having cavities at least partially accommodating at least one of the pressure mediums, said filling material including different materials with different densities and different cavity structures therein, each of said different materials having cavities therein; and
at least one elastomeric separation diaphragm subdividing an interior of said accumulator housing into at least first and second working spaces, said first working space accommodating first pressure medium, said second working space accommodating the second pressure medium, said separation diaphragm at least partially enclosing said filling material in at least one of said working spaces.

15. A pressure accumulator according to claim 14 wherein
said first pressure medium is a liquid;
said second pressure medium is a working gas; and
the filling material is in said second working space.

16. A pressure accumulator according to claim 14 wherein
said first pressure medium is a liquid;
said second pressure medium is a working gas; and
the filling material is in the first and second working spaces.

Assignees

• Hydac Technology Gmbh

Inventors

• Baltes Herbert
• Kloft Peter

Classifications

• F15B1/086 Primary

  the gas cushion being entirely enclosed by the separating means, e.g. foam or gas-filled balls · CPC title

• F17C1/00

  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}) · CPC title

• F15B1/04 Primary

  Accumulators · CPC title