Tank and method of manufacturing the same
US-2022412508-A1 · Dec 29, 2022 · US
High-pressure tank and method for producing the same
US12247698B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12247698-B2 |
| Application number | US-202117644825-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 17, 2021 |
| Priority date | Dec 17, 2020 |
| Publication date | Mar 11, 2025 |
| Grant date | Mar 11, 2025 |
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- Title
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Abstract
Official abstract text for this publication.
A high-pressure tank that enables end portions of a first reinforcing layer wound around a body of a liner to sufficiently contribute to the strength of dome portions of the tank. In the high-pressure tank, a reinforcing layer includes the first reinforcing layer that covers the body and a second reinforcing layer that covers the first reinforcing layer and side end portions of the liner. The first reinforcing layer includes a hoop reinforcing layer formed through hoop winding of a resin-containing fiber bundle in a midsection of the body, and a helical reinforcing layer arranged in parallel with the hoop reinforcing layer along the axis direction of the high-pressure tank and formed through helical winding of the fiber bundle in a section on at least one end side of the midsection, the helical reinforcing layer forming a part of the dome portions.
First claim
Opening claim text (preview).
What is claimed is: 1. A high-pressure tank having dome shaped side end portions formed at opposite ends of a cylindrical portion, the high-pressure tank including: a liner having the cylindrical portion and the dome shaped side end portions provided at opposite ends of the body; and a reinforcing layer that covers the liner and is formed of a fiber-reinforced resin, wherein the reinforcing layer includes a first reinforcing layer that covers the body and a second reinforcing layer that covers the first reinforcing layer and the side end portions, the first reinforcing layer having: a hoop reinforcing layer formed through hoop winding of a resin-containing fiber bundle in a midsection of the body; and a helical reinforcing layer arranged in parallel with the hoop reinforcing layer along an axis direction of the high-pressure tank and formed through helical winding of the fiber bundle in a section on at least one end side of the midsection, the helical reinforcing layer forming a part of the dome shaped side end portions, wherein the helical reinforcing layer has a first end portion on a side of the hoop reinforcing layer and a second end portion on a side of the side end portion along the axis direction of the high-pressure tank, and a winding angle of the fiber bundle to form the first end portion is greater than a winding angle of the fiber bundle to form the second end portion. 2. The high-pressure tank according to claim 1 , wherein the helical reinforcing layer has an inclined surface relative to an outer peripheral surface of the body in a cross section along the axis direction of the high-pressure tank from a boundary between each of the side end portions and the body toward a side of the hoop reinforcing layer. 3. The high-pressure tank according to claim 1 , wherein the second reinforcing layer is formed through helical winding of the fiber bundle so as to extend between the side end portions, and a winding angle of the fiber bundle to form the helical reinforcing layer is greater than a winding angle of the fiber bundle to form the second reinforcing layer and smaller than a winding angle of the fiber bundle to form the hoop reinforcing layer. 4. The high-pressure tank according to claim 1 , wherein a winding angle of the fiber bundle to form the helical reinforcing layer is within a range between 80° and less than 89°. 5. The high-pressure tank according to claim 1 , wherein a length of the helical reinforcing layer along the axis direction is 0.3 times or greater than 0.3 times an outer diameter of the high-pressure tank.
Assignees
Inventors
Classifications
Straps, bands or ribbons · CPC title
radially wound · CPC title
helically wound · CPC title
Liners · CPC title
Bosses, e.g. boss collars · CPC title
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Frequently asked questions
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- What does patent US12247698B2 cover?
- A high-pressure tank that enables end portions of a first reinforcing layer wound around a body of a liner to sufficiently contribute to the strength of dome portions of the tank. In the high-pressure tank, a reinforcing layer includes the first reinforcing layer that covers the body and a second reinforcing layer that covers the first reinforcing layer and side end portions of the liner. The f…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F17C1/06. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Mar 11 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).