Nacelle alignment assembly with a multi-piece locator

Patent metadata

Field	Value
Publication number	US-10577115-B2
Application number	US-201615382121-A
Country	US
Kind code	B2
Filing date	Dec 16, 2016
Priority date	Dec 16, 2016
Publication date	Mar 3, 2020
Grant date	Mar 3, 2020

Abstract

A system is provided for an aircraft propulsion system. This system includes a nacelle structure, a nacelle cowl and an alignment assembly. The nacelle cowl is configured to move between a closed position and an open position. The alignment assembly includes a pair of mating components respectively arranged with the nacelle structure and the nacelle cowl. A first of the pair of mating components is configured as or otherwise includes a receptacle. A second of the pair of mating components is configured as or otherwise includes a locator. The locator is configured to mate with the receptacle and thereby locate the nacelle cowl relative to the nacelle structure when the nacelle cowl is in the closed position. The locator includes a base and a guide attached to the base. The guide is formed as a discrete body from the base.

First claim

We claim:

1. A system for an aircraft propulsion system, comprising:
a nacelle structure;
a nacelle cowl configured to move between a closed position and an open position; and
an alignment assembly comprising a pair of mating components respectively arranged with the nacelle structure and the nacelle cowl, a first of the pair of mating components comprising a receptacle, and a second of the pair of mating components comprising a locator;
the locator configured to mate with the receptacle and thereby locate the nacelle cowl relative to the nacelle structure when the nacelle cowl is in the closed position, and the locator comprising a base and a guide attached to the base, wherein the guide is formed as a discrete body from the base;
wherein the base is configured with a dovetail mortise;
wherein the guide is configured with a dovetail tenon arranged within the dovetail mortise; and
wherein a portion of the guide, which extends through an aperture in the receptacle when the nacelle cowl is in the closed position, is cantilevered from and projects out from the dovetail tenon.

2. The system of claim 1 , wherein the base is mounted to and connects the guide to a respective one of the nacelle structure and the nacelle cowl.

3. The system of claim 1 , wherein
the guide is configured to project into and slide against the receptacle as the nacelle cowl moves towards the closed position to thereby guide the receptacle onto the base; and
the base is configured to mate with the receptacle when the nacelle cowl is in the closed position.

4. The system of claim 1 , wherein the receptacle is configured to impart a load onto the base but not onto the guide when the nacelle cowl is in the closed position.

5. The system of claim 1 , wherein the receptacle is configured to impart a load onto the base when the nacelle cowl is in the closed position.

6. The system of claim 1 , wherein the guide is removably attached to the base.

7. The system of claim 1 , wherein
the guide is attached to the base at an interlocking joint; and
the dovetail mortise and the dovetail tenon form the interlocking joint.

8. The system of claim 1 , wherein the guide is attached to the base by a fastener.

9. The system of claim 1 , wherein
the base comprises first material; and
the guide comprises second material that is different from the first material.

10. The system of claim 1 , wherein
the base comprises metal; and
the guide comprises polymer.

11. The system of claim 1 , wherein
the first of the pair of mating components is mounted to the nacelle structure; and
the second of the pair of mating components is mounted to the nacelle cowl.

12. The system of claim 1 , wherein
the nacelle structure comprises a nacelle inlet structure; and
the nacelle cowl comprises a fan cowl.

13. A system for an aircraft, comprising:
a propulsion system comprising a receptacle and a locator;
the receptacle comprising an annular plate;
the locator comprising a base and a guide projecting out and cantilevered from the base;
the guide configured to project into and slide against the annular plate as the receptacle moves towards a fully mated position to thereby guide the annular plate onto the base; and
the base configured to mate with the annular plate when the receptacle is in the fully mated position;
wherein the base comprises metal and the guide comprises non-metal material;
wherein the base is configured with a mortise;
wherein the guide is configured with a tenon mated with the mortise to provide an interlocking joint between the base and the guide; and
wherein a cantilevered portion of the guide, which extends through an aperture in the annular plate when the receptacle is in the fully mated position, projects out from the tenon.

14. The system of claim 13 , wherein
the receptacle is configured to impart a load onto the base when the receptacle is in the fully mated position; and
the receptacle is further configured not to impart a load onto the guide when the receptacle is in the fully mated position.

15. The system of claim 13 , further comprising:
a nacelle structure; and
a nacelle cowl configured to move between a closed position and an open position, wherein the receptacle is in the fully mated position when the nacelle cowl is in the closed position;
the receptacle mounted to the nacelle structure; and
the base mounted to the nacelle cowl.

16. A system for an aircraft propulsion system, comprising:
a nacelle structure;
a nacelle cowl configured to move between a closed position and an open position; and
an alignment assembly comprising a pair of mating components respectively arranged with the nacelle structure and the nacelle cowl, a first of the pair of mating components comprising a receptacle, and a second of the pair of mating components comprising a locator;
the locator configured to mate with the receptacle and thereby locate the nacelle cowl relative to the nacelle structure when the nacelle cowl is in the closed position, and the locator comprising a base and a guide attached to the base, wherein the guide is formed as a discrete body from the base;
wherein the guide is attached to the base at an interlocking joint; and
wherein the interlocking joint is configured as a mortise and tenon joint.

Assignees

• Rohr Inc

Inventors

• Paolini Thomas
• Schommer Marc

Classifications

• B64D29/08

  Inspection panels for power plants · CPC title

• F05D2230/72

  Maintenance · CPC title

• F05D2240/14

  Casings or housings protecting or supporting assemblies within · CPC title

• F05D2230/644

  for adjusting the position or the alignment, e.g. wedges or eccenters · CPC title

• F05D2220/323

  for aircraft propulsion, e.g. jet engines · CPC title