Servicing of landing gear shock absorbers
US-2017008648-A1 · Jan 12, 2017 · US
Servicing procedure for single-stage mixed fluid/gas shock strut
US11248678B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11248678-B2 |
| Application number | US-202016856601-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 23, 2020 |
| Priority date | Nov 6, 2015 |
| Publication date | Feb 15, 2022 |
| Grant date | Feb 15, 2022 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A method for weight off wheel shock strut servicing includes deflating the shock strut, compressing the shock strut via a jack until the shock strut is in a compressed position, charging the shock strut with an oil until a pressure of the oil reduces a volume of a residual air located inside of the shock strut, lowering the jack until a shock strut piston reaches a pre-determined extension, and charging the shock strut with a gas until the gas comprises a pre-determined pressure.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for weight off wheel shock strut servicing comprising: deflating a shock strut; compressing the shock strut via a jack until the shock strut is in a compressed position; charging the shock strut with an oil until a pressure of the oil reduces a volume of a residual air located inside of the shock strut; lowering the jack until a shock strut piston reaches a pre-determined extension, wherein the pre-determined extension is determined, at least in part, based upon a servicing temperature; and charging the shock strut with a gas until the gas comprises a pre-determined pressure. 2. The method of claim 1 , wherein the charging the shock strut with the oil comprises pumping the oil into a second valve and closing a first valve in response to the oil exiting the shock strut via the first valve. 3. The method of claim 1 , wherein the deflating comprises releasing the gas from the shock strut. 4. The method of claim 1 , wherein the pre-determined pressure is determined, at least in part, based upon a servicing temperature. 5. The method of claim 1 , wherein the shock strut is charged with the oil while maintaining the shock strut in the compressed position.
Assignees
Inventors
Classifications
Maintaining or repairing aircraft · CPC title
using both gas and liquid {(F16F9/486 take precedence; self-pumping fluid springs B60G17/044)} · CPC title
- F16F9/3271Primary
Assembly or repair · CPC title
Oleo legs · CPC title
Maintenance · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11248678B2 cover?
- A method for weight off wheel shock strut servicing includes deflating the shock strut, compressing the shock strut via a jack until the shock strut is in a compressed position, charging the shock strut with an oil until a pressure of the oil reduces a volume of a residual air located inside of the shock strut, lowering the jack until a shock strut piston reaches a pre-determined extension, and…
- Who is the assignee on this patent?
- Goodrich Corp
- What technology area does this patent fall under?
- Primary CPC classification F16F9/3271. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 15 2022 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).