Ram air system and methods of manufacturing the same
US-9708069-B2 · Jul 18, 2017 · US
Apparatus for boundary layer air inlet utilization
US10906663B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10906663-B2 |
| Application number | US-201816042024-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 23, 2018 |
| Priority date | Jul 23, 2018 |
| Publication date | Feb 2, 2021 |
| Grant date | Feb 2, 2021 |
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 boundary layer utilization apparatus for intake of air to a high speed aircraft, comprises a first air inlet adjacent an exterior surface of a fuselage of the aircraft and offset from the fuselage enough to integrate a second air inlet in the offset space to ingest and divert the boundary layer air flowing next to the fuselage into the aircraft for a useful purpose such as cooling the engine compartment. The second air inlet is disposed aft of the first air inlet to minimize hot gas re-ingestion.
First claim
Opening claim text (preview).
What is claimed is: 1. A boundary layer utilization apparatus for intake of air to a high speed rotorcraft, comprising: a first air inlet adjacent an exterior surface of a fuselage of the rotorcraft of and offset therefrom by a predetermined offset space to minimize ingestion of boundary layer air flowing along the exterior surface, to provide primary air to an engine intake; and a second air inlet recessed within the predetermined offset space between the first air inlet and the fuselage to divert the boundary layer air proximate the first air inlet from ingestion into the first air inlet thereby to provide secondary air for cooling an engine compartment; wherein the second air inlet is disposed aft of the first air inlet. 2. The apparatus of claim 1 , wherein: the first air inlet is configured as a scoop to direct, with minimal drag, the primary air into the engine intake. 3. The apparatus of claim 1 , wherein: the second air inlet is disposed aft of the first air inlet to minimize hot gas re-ingestion. 4. The apparatus of claim 1 , wherein the primary air comprises: a volume of substantially undisrupted air conducted to the engine intake for powering the aircraft. 5. The apparatus of claim 1 , wherein the second air inlet comprises: an inlet ramp formed in the fuselage to merge the cross-sectional area of the second air inlet with the cross-sectional area of the offset space between the entrance of the first air inlet and the fuselage. 6. The apparatus of claim 1 , wherein: the second air inlet is recessed within the predetermined offset space between the first air inlet and the fuselage to improve the utilization of the boundary layer air and reduce drag. 7. The apparatus of claim 1 , wherein: the dimensions of the second air inlet are configured to conform to the predetermined offset space between the first, air inlet and the fuselage of the aircraft. 8. The apparatus of claim 1 , wherein further comprising: a plenum within the fuselage for receiving the diverted boundary layer air.
Assignees
Inventors
Classifications
of combustion air intakes · CPC title
using passive means, i.e. without external energy supply · CPC title
- B64D33/08Primary
of power plant cooling systems · CPC title
specially adapted for particular type of aircraft · 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 US10906663B2 cover?
- A boundary layer utilization apparatus for intake of air to a high speed aircraft, comprises a first air inlet adjacent an exterior surface of a fuselage of the aircraft and offset from the fuselage enough to integrate a second air inlet in the offset space to ingest and divert the boundary layer air flowing next to the fuselage into the aircraft for a useful purpose such as cooling the engine …
- Who is the assignee on this patent?
- Textron Innovations Inc
- What technology area does this patent fall under?
- Primary CPC classification B64D33/08. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 02 2021 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).