Accumulator
US-2015240839-A1 · Aug 27, 2015 · US
Accumulator
US10480539B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10480539-B2 |
| Application number | US-201615778996-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 13, 2016 |
| Priority date | Jan 13, 2016 |
| Publication date | Nov 19, 2019 |
| Grant date | Nov 19, 2019 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An accumulator includes a pressure container, a tubular bellows, a bellows cap divisionally defining a liquid chamber and a gas chamber in cooperation with the bellows. A stay provided with a through hole partitions the liquid chamber into a closed liquid chamber on a side of the bellows and an open liquid chamber on a side of the liquid pressure port. The bellows cap includes an elastic abutment part provided with an annular sealing part positioned around the through hole to face the through hole, a buffering part is positioned on a radially inner side of the sealing part, and communication passages always communicating with the through hole are formed in the buffering part of the elastic abutment part.
First claim
Opening claim text (preview).
The invention claimed is: 1. An accumulator comprising: a pressure container including a liquid pressure port connected to a pressure pipe; a tubular bellows arranged telescopically along an inner wall of the pressure container; a bellows cap configured to close one end of the bellows to divisionally define, in cooperation with the bellows, a liquid chamber communicating with the liquid pressure port and a gas chamber in which a pressure gas is enclosed; and a stay provided with a through hole, the stay partitioning the liquid chamber into a closed liquid chamber on a side of the bellows and an open liquid chamber on a side of the liquid pressure port wherein: the bellows cap includes an elastic abutment part provided with an annular sealing part positioned around the through hole to face the through hole, and a buffering part positioned on a radially inner side of the sealing part; communication passages always communicating with the through hole are formed in the buffering part of the elastic abutment part; and the communication passages comprise a plurality of radial grooves extending in a radial direction and at least one circumferential groove coupled to the radial grooves and extending in a circumferential direction. 2. The accumulator as set forth in claim 1 , wherein: the plurality of radial grooves of the communication passages are formed so as to be equiangularly arranged around the through hole of the stay upon an abutment of the stay and the sealing part of the elastic abutment part. 3. The accumulator as set forth in claim 2 , wherein: each of the plurality of radial grooves of the communication passages is extended radially and linearly from the through hole of the stay toward the sealing part.
Assignees
Inventors
Classifications
with flexible separating means · CPC title
Liquid ports · CPC title
the flexible separating means being bellows · CPC title
Accumulator cushioning means · CPC title
- F15B1/103Primary
the separating means being bellows · CPC title
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- What does patent US10480539B2 cover?
- An accumulator includes a pressure container, a tubular bellows, a bellows cap divisionally defining a liquid chamber and a gas chamber in cooperation with the bellows. A stay provided with a through hole partitions the liquid chamber into a closed liquid chamber on a side of the bellows and an open liquid chamber on a side of the liquid pressure port. The bellows cap includes an elastic abutme…
- Who is the assignee on this patent?
- Eagle Ind Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F15B1/103. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Nov 19 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).