Air inlet with integrated structural hand hold

Patent metadata

Field	Value
Publication number	US-10766628-B2
Application number	US-201715706394-A
Country	US
Kind code	B2
Filing date	Sep 15, 2017
Priority date	Sep 15, 2017
Publication date	Sep 8, 2020
Grant date	Sep 8, 2020

Abstract

This disclosure relates to an air inlet for an aircraft with an integrated hand hold. One innovative aspect of the subject matter described herein can be implemented as an air inlet on the exterior surface of a cowling for a rotorcraft, wherein the air inlet having a scoop that includes a bottom surface having a wide, flat, front edge that angles downward towards the back, an opening in the back for air to enter, and two lateral sides coupled to the bottom surface, where the two sides are planar on a top surface and become longer in height towards the opening in the back, and hand hold, where the hand hold is a trough or an indentation in the bottom surface of the scoop that extends along a side.

First claim

What is claimed is:

1. An air inlet on a cowling of an aircraft, the air inlet comprising:
a scoop, wherein the scoop comprises:
a bottom surface, wherein the bottom surface has a flat front leading edge and slopes downwards towards a back edge of the scoop;
at least two sides, wherein the two sides are substantially planar along a top edge and are shorter towards the flat front leading edge of the scoop; and
an opening at the back edge of the scoop; and

a hand hold on the scoop, wherein the hand hold is an indentation in the bottom surface of the scoop along a first side.

2. The air inlet of claim 1 , further comprising a top surface of the air inlet, wherein the top surface of the air inlet is planar with the surface of the cowling.

3. The air inlet of claim 1 , further comprising a top surface of the air inlet, wherein the top surface of the air inlet is above the surface of the cowling.

4. The air inlet of claim 1 , wherein the scoop further comprises:
a soft edge on the cowling at the back edge of the scoop.

5. The air inlet of claim 1 , wherein the scoop comprises one or more of aluminum, aluminum alloy, steel, reinforced plastic, and a carbon composite.

6. The air inlet of claim 4 , wherein the soft edge comprises one or more of a carbon composite material, fiberglass, aluminum, titanium, and corrosion resistant steel (CRES).

7. The air inlet of claim 1 , further comprising a second hand hold on the scoop, wherein the second hand hold is an indentation in the bottom surface of the scoop along a second side.

8. A rotorcraft, comprising:
a cowling,
an engine;
an air inlet for the engine on the cowling, the air inlet comprising:
a scoop, wherein the scoop comprises:
a bottom surface, wherein the bottom surface has a flat front leading edge and slopes downwards towards a back edge of the scoop;
at least two sides, wherein the two sides are substantially planar along a top edge and are shorter towards the flat front leading edge of the scoop; and
an opening at the back edge of the scoop; and

a hand hold on the scoop, wherein the hand hold is an indentation in the bottom surface of the scoop along a first side.

9. The rotorcraft of claim 8 , further comprising a top surface of the air inlet, wherein the top surface of the air inlet is planar with the surface of the cowling.

10. The rotorcraft of claim 8 , further comprising a top surface of the air inlet, wherein the top surface of the air inlet is above the surface of the cowling.

11. The rotorcraft of claim 8 , wherein the scoop further comprises:
a soft edge on the cowling at the back edge of the scoop.

12. The rotorcraft of claim 8 , wherein the scoop comprises one or more of aluminum, aluminum alloy, steel, reinforced plastic, and a carbon composite.

13. The rotorcraft of claim 11 , wherein the soft edge comprises one or more of a carbon composite material, fiberglass, aluminum, titanium, and corrosion resistant steel (CRES).

14. The rotorcraft of claim 8 , further comprising a second hand hold on the scoop, wherein the second hand hold is an indentation in the bottom surface of the scoop along a second side.

Assignees

• Bell Helicopter Textron Inc

Inventors

• Scannell Brent
• Mast Thomas

Classifications

• B64D2033/0253

  specially adapted for particular type of aircraft · CPC title

• B64C1/1446

  Inspection hatches (for engine cowls B64D29/08) · CPC title

• B64D33/02 Primary

  of combustion air intakes · CPC title

• B64D29/08

  Inspection panels for power plants · CPC title

• B64C1/24

  Steps mounted on, and retractable within, fuselages · CPC title