Exterior aircraft light and aircraft comprising the same

• US 10,710,742 B2
• Filed: 09/17/2019
• Issued: 07/14/2020
• Est. Priority Date: 09/21/2018
• Status: Active Grant

• Current Assignee: Goodrich Lighting Systems GmbH (Raytheon Technologies Corporation d/b/a RTX)
• Original Assignee: Goodrich Lighting Systems GmbH (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Hessling-Von Heimendahl, Andre, Jha, Anil Kumar
• Primary Examiner(s): Garlen, Alexander K
• Application Number:
  US16/573,198
• Publication Number:
  US 20200094986A1
• Time in Patent Office: 301 Days
• CPC Class Codes: B64D 2203/00 Aircraft or airfield lights using LEDs
• CPC Class Codes: B64D 47/02 Arrangements or adaptations of signal or lighting devices
• CPC Class Codes: B64D 47/04 the lighting devices being primarily intended to illuminate the way ahead
• CPC Class Codes: B64D 47/06 for indicating aircraft presence
• CPC Class Codes: F21S 45/30 Ventilation or drainage of lighting devices
• CPC Class Codes: F21V 31/005 Sealing arrangements therefor
• CPC Class Codes: F21V 31/03 with provision for venting for vehicle head lights F21S45/33; for vehicle rear lights F21S41/192
• CPC Class Codes: F21W 2107/30 for aircraft

Abstract

An exterior aircraft light includes a housing configured to be mounted to an exterior portion of an aircraft; at least one light source mounted to the housing; a lens cover, cooperating with the housing for forming an inner space of the exterior aircraft light, with light from the at least one light source leaving the exterior aircraft light through the lens cover into an outside environment of the aircraft; and a gasket arranged between the housing and the lens cover, the gasket having at least one flap portion forming at least one check valve for fluid discharge from the inner space of the exterior aircraft light towards the outside environment of the aircraft.

Claims

1. An exterior aircraft light comprising:

a housing configured to be mounted to an exterior portion of an aircraft,

at least one light source mounted to the housing,

a lens cover, cooperating with the housing for forming an inner space of the exterior aircraft light, with light from the at least one light source leaving the exterior aircraft light through the lens cover into an outside environment of the aircraft, and

a gasket arranged between the housing and the lens cover, the gasket having at least one flap portion forming at least one check valve for fluid discharge from the inner space of the exterior aircraft light towards the outside environment of the aircraft.

2. The exterior aircraft light according to claim 1, wherein the at least one check valve provides for a direct path between the inner space of the exterior aircraft light and the outside environment of the aircraft, wherein the at least one check valve is in particular free of a waterproof membrane.

3. The exterior aircraft light according to claim 1, wherein the gasket is made from rubber, in particular from fluorosilicone rubber.

4. The exterior aircraft light according to claim 1,

wherein the housing comprises a lens retainer structure,

wherein the gasket is arranged between the lens cover and the lens retainer structure, and

wherein the lens retainer structure comprises at least one recess, whose position corresponds to the at least one flap portion of the gasket.

5. The exterior aircraft light according to claim 1, further comprising at least one air inlet for introducing air from outside of the exterior aircraft light into the inner space of the exterior aircraft light.

6. The exterior aircraft light according to claim 5, wherein the at least one air inlet is provided with a semi-permeable membrane, in particular with a waterproof, air-permeable membrane.

7. The exterior aircraft light according to claim 5, wherein the at least one air inlet is provided in the housing.

8. The exterior aircraft light according to claim 5, wherein the at least one air inlet is provided in a first end portion of the exterior aircraft light and wherein the at least one flap portion is provided in a second end portion of the exterior aircraft light, opposite the first end portion.

9. The exterior aircraft light according to claim 1, wherein the lens cover and the housing form a step contour around the at least one flap portion.

10. The exterior aircraft light according to claim 1, wherein the at least one light source is mounted to a mounting board, such as a printed circuit board, with the mounting board being arranged in proximity to the at least one flap portion.

11. The exterior aircraft light according to claim 1, wherein the exterior aircraft light is one of a position light, a white anti-collision strobe light, a red beacon light, a landing light, a runway turn-off light, a taxi light, a take-off light, a wing scan light, a stabilizer illumination light, a cargo light, and a multi-functional light providing at least two of the functionalities of a position light, a white anti-collision strobe light, a red beacon light, a landing light, a runway turn-off light, a taxi light, a take-off light, a wing scan light, a stabilizer illumination light, and a cargo light.

12. An Aircraft, comprising:

at least one exterior aircraft light according to claim 1.

13. The aircraft according to claim 12, wherein the at least one flap portion is provided in a bottom region of the exterior aircraft light.

14. The aircraft according to claim 1, wherein the exterior aircraft light comprises at least one air inlet, wherein the at least one air inlet is in particular in air communication with a non-pressurized air volume on the inside of the aircraft skin.

15. The aircraft according to claim 14, wherein the at least one flap portion is aft of the at least one air inlet.

16. The aircraft according to claim 14, wherein the at least one flap portion is lower than the at least one air inlet.