US2017191618A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017191618-A1 |
| Application number | US-201515314522-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 5, 2015 |
| Priority date | Jun 13, 2014 |
| Publication date | Jul 6, 2017 |
| Grant date | — |
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
What the patent document calls the invention.
A short plain-language summary of the technical disclosure.
Who owns or filed the patent and who is credited as inventor.
Filing, priority, publication, and grant dates set the timeline.
The legal scope of protection — read this for what is actually claimed.
Technology tags used to group this patent with similar filings.
Prior art links and similar publications in this corpus.
Official abstract text for this publication.
A method for manufacturing a pressure vessel ( 2 ), which is preferably provided for use in bladder accumulators, comprising the following manufacturing steps:—providing a support structure ( 22 ), more particularly in the form of a liner;—applying a fibrous material ( 24 ) to the support structure ( 22 ) to form a base structure ( 20 );—placing the base structure ( 20 ) in a heatable mold apparatus ( 4, 6, 10 ); and—introducing a matrix between the mold apparatus ( 4, 6, 10 ) and the base structure ( 20 ), which partially penetrates the fibrous material ( 24 ).
Opening claim text (preview).
1 . A method for manufacturing a pressure vessel ( 2 ), which is provided preferably for use in bladder accumulators, having the following manufacturing steps: providing a support structure ( 22 ), in particular, in the form of a liner; applying a fibrous material ( 24 ) to the support structure ( 22 ) to form a base structure ( 20 ); introducing the base structure ( 20 ) into a heatable mold apparatus ( 4 , 6 , 10 ); and introducing a matrix between the mold apparatus ( 4 , 6 , 10 ) and the base structure ( 20 ), which at least partially penetrates the fibrous material ( 24 ). 2 . The method according to claim 1 , characterized in that the fibrous material ( 24 ) is applied dry to the support structure ( 22 ) and takes place in the form of a wrapping or braiding. 3 . The method according to claim 1 , characterized in that the support structure ( 22 ) is wrapped with the fibrous material ( 24 ) in an axial and tangential direction in such a way that the fibrous material ( 24 ) is substantially subjected to tensile loads. 4 . The method according to claim 1 , characterized in that reactive resin systems; reactive polyamide, preferably caprolactam; or polyurethane systems (PU) are used as a matrix. 5 . The method according to claim 1 , characterized in that the matrix is injected into the mold apparatus ( 4 , 6 , 10 ) by means of a resin injection method, preferably under a pressure of 30 bar to 40 bar. 6 . The method according to claim 1 , characterized in that the matrix, together with at least one solvent, preferably in the form of isocyanate, is introduced into the mold apparatus ( 4 , 6 , 10 ) in such a way that the solvent-containing, fluidic matrix saturates the fibrous material ( 24 ) of the support structure ( 22 ) and the matrix in the cured state protectively encloses the fibrous material ( 24 ). 7 . The method according to claim 1 , characterized in that the matrix, fully cured after removal from the mold apparatus ( 4 , 6 , 10 ), is manufactured as a solid protective sheath body ( 32 ) in a non-porous manner 8 . The method according to claim 1 , characterized in that a negative pressure is applied to the mold apparatus ( 4 , 6 , 10 ) during the introduction of the solvent-containing matrix and/or the interior pressure of the support structure ( 22 ) is increased, preferably by introducing a non-reactive, compressible or incompressible pressure medium, such as nitrogen gas, or water or oil. 9 . The method according to claim 1 , characterized in that the molding temperature selected is below 100° C. and the mold time is less than 10 minutes, preferably approximately 8 minutes. 10 . The method according to claim 1 , characterized in that the support structure used is a liner ( 22 ) made of steel materials or a liner ( 22 ) constructed from plastic materials, either of which is designed as a hollow body provided with a through-opening ( 42 ) at its opposite ends. 11 . A pressure vessel, in particular, manufactured by a method according to claim 1 , consisting of at least one support structure ( 22 ), which is surrounded by a fibrous sheath ( 24 ), which is saturated with a matrix, which encloses the fibrous sheath ( 24 ) at least partly toward the outside as a protective sheath body ( 32 ).
Winding · CPC title
and impregnating by vacuum or injection · CPC title
built-up from wound-on bands or filamentary material, e.g. wires · CPC title
Incorporated in coherent impregnated reinforcing layers, {e.g. by winding} · CPC title
constructed of plastics materials {(shaping of plastics B29C)} · CPC title
Related publications grouped by family.
Answers are generated from the same data shown on this page.