Metal bellows type accumulator
US-2018087665-A1 · Mar 29, 2018 · US
Metal bellows
US10520084B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10520084-B2 |
| Application number | US-201615758693-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 14, 2016 |
| Priority date | Sep 23, 2015 |
| Publication date | Dec 31, 2019 |
| Grant date | Dec 31, 2019 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A metal bellows of great durability capable of preventing breakage at both end portions of the metal bellows is provided. The metal bellows is annular-shaped and has, axially repeatedly, a structure in which, from an axial end portion 10 c , a belly, a valley, a belly, a peak, and a belly are integrally formed in series sequentially in this order. The end portion 10 c has a first connection belly 10 d connected to a fitting member 15 , and a connection valley 10 e and a second connection belly 10 f extending sequentially from the first connection belly 10 d axially inward. The axial width b 1 of the connection valley 10 e in a free state is set larger than the axial width of valleys 10 i, 10 m , . . . or peaks 10 g, 10 k , . . . in a portion other than the end portion 10 c.
First claim
Opening claim text (preview).
The invention claimed is: 1. A metal bellows in an annular shape configured to be accommodated in a shell, having a fixed end and an freely moving end in an axial direction, and comprising, axially repeatedly, a structure in which, from an axial end portion at each of the fixed end and the freely moving end, a belly, a valley, a belly, a peak, and a belly are integrally formed in series sequentially in this order, wherein the end portion has a first connection belly connected to a fitting member, and a connection valley and a second connection belly extending sequentially from the first connection belly axially inward, and the connection valley in a free state has an axial width set larger than an axial width of valleys or peaks in a portion other than the end portion, wherein the metal bellows further comprises a vibration damping ring for guiding the metal bellows to axially move along an inner surface of the shell during extension and contraction operations, provided at the freely moving end in a manner fitting astride the fitting member and the freely moving end, wherein the vibration damping ring includes a mounting portion inserted in the end portion at the freely moving end in a manner abutting against and contacting a surface of the connection valley of the end portion. 2. The metal bellows according to claim 1 , wherein the connection valley includes a linear portion parallel to an axial direction. 3. The metal bellows according to claim 1 , wherein the connection valley is formed by an arc portion with a curvature radius larger than a curvature radius of valleys or peaks in a portion other than the end portion.
Assignees
Inventors
Classifications
with flexible separating means · CPC title
by means of sealing bellows or diaphragms (connection of valves to inflatable elastic bodies B60C29/00) · CPC title
the separating means being bellows · CPC title
- F16J3/047Primary
Metallic bellows · CPC title
and comprising vibration-damping means · CPC title
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- What does patent US10520084B2 cover?
- A metal bellows of great durability capable of preventing breakage at both end portions of the metal bellows is provided. The metal bellows is annular-shaped and has, axially repeatedly, a structure in which, from an axial end portion 10 c , a belly, a valley, a belly, a peak, and a belly are integrally formed in series sequentially in this order. The end portion 10 c has a first connect…
- Who is the assignee on this patent?
- Eagle Ind Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16J3/047. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 31 2019 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).