Metal Seal Fitting For Use On A Pipeline
US-2019024799-A1 · Jan 24, 2019 · US
Resilient seal having a pressurized bellows spring
US8936249B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8936249-B2 |
| Application number | US-201213410327-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 2, 2012 |
| Priority date | Mar 2, 2012 |
| Publication date | Jan 20, 2015 |
| Grant date | Jan 20, 2015 |
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Abstract
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An increased resilience seal utilizing a sealed gas filled inner chamber in a bellows spring that functions as both a mechanical spring and a gas spring to provide a more constant level of separation force between two face plates to provide a seal between two mechanical components such as those found in an aircraft jet engine. The bellows spring is made of a plurality of walls that are joined together in a pressurized chamber that is filled with a gas, such as an inert gas. In alternative embodiments, the bellows spring is made of walls that are shaped and oriented to optimize the operating characteristics of the bellows spring when the pressure is increased in a sealed inner chamber in response to elevated temperature. In one embodiment, the walls forming a portion of the chamber overlap to optimize the geometry of the bellows spring.
First claim
Opening claim text (preview).
We claim: 1. A seal, comprising: a bellows spring including a plurality of walls that define a chamber having a volume containing a pressurized gas, said bellows spring comprising a mechanical spring and said pressurized gas comprising a gas spring, wherein a sealing force generated by the seal at a target operating condition includes the gas spring that compensates for a deficiency of the mechanical spring associated with a stress relaxation in a material of the bellows spring;…
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- F16J15/0893Primary
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
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- What does patent US8936249B2 cover?
- An increased resilience seal utilizing a sealed gas filled inner chamber in a bellows spring that functions as both a mechanical spring and a gas spring to provide a more constant level of separation force between two face plates to provide a seal between two mechanical components such as those found in an aircraft jet engine. The bellows spring is made of a plurality of walls that are joined t…
- Who is the assignee on this patent?
- Swensen Jeffrey E, Roach Matthew E, Eaton Corp
- What technology area does this patent fall under?
- Primary CPC classification F16J15/0893. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 20 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).