Device and a method for repairing a hole in a part

Patent metadata

Field	Value
Publication number	US-10940652-B2
Application number	US-201515506585-A
Country	US
Kind code	B2
Filing date	Aug 18, 2015
Priority date	Aug 27, 2014
Publication date	Mar 9, 2021
Grant date	Mar 9, 2021

Abstract

A repair device for repairing a hole in a part includes a resin tank and an injector endpiece connected to the tank. The endpiece is designed to be inserted in the hole. The endpiece includes at least one injection orifice enabling resin to be injected into at least one cavity situated around the endpiece. The endpiece can be extracted from the hole after the resin has hardened.

First claim

The invention claimed is:

1. A repair device for repairing a hole in a part, the device comprising:
a resin tank; and
an injector endpiece connected to the resin tank, the endpiece being configured to be inserted in the hole, the endpiece including at least one injection orifice enabling resin to be injected into at least one cavity situated around the endpiece, the endpiece having a configuration to be extracted from the hole after the resin has hardened, the configuration comprising at least one of the following features:
an outer surface of the endpiece is coated with a non-stick material,
the endpiece includes a bladder, wherein the bladder includes the at least one injection orifice,
a total area of the at least one injection orifice is less than 40% of an outside area of the endpiece,
the at least one injection orifice has at least one thinned edge,
the at least one injection orifice has a diameter lying in a range of 0.5 mm to 2 mm,
the endpiece comprises a hollow body and a skin for single use, placed around the hollow body, and
the endpiece comprises a hollow body and a porous screen or filter surrounding the endpiece.

2. The repair device according to claim 1 , further comprising a sealing element configured to isolate hermetically a zone of the part that includes the hole when the endpiece is inserted in the hole.

3. The repair device according to claim 2 , further comprising a vacuum system configured to establish a vacuum in the isolated zone.

4. The repair device according to claim 1 , further comprising a heater configured to heat the resin coming from the resin tank.

5. The repair device according to claim 1 , further comprising at least one of a temperature sensor or a pressure sensor.

6. The repair device according to claim 1 , wherein the endpiece is configured to form a tapped hole while the endpiece is withdrawn from the part.

7. The repair device according to claim 1 , wherein the endpiece is configured to be disconnected from the resin tank.

8. The repair device according to claim 1 , wherein the endpiece comprises a hollow body, the at least one injection orifice being arranged in an outside surface of the hollow body.

9. The repair device according to claim 1 , wherein the at least one injection orifice is configured to cut through the resin when the endpiece turns in the hole.

10. The repair device according to claim 2 , wherein the sealing element includes first and second sub-elements that are installed on either end of the hole and the endpiece, and a vacuum device which applies a vacuum to the zone of the part.

Assignees

• Safran Aircraft Engines

Inventors

• Tellier Florian
• Paixao Adrien

Classifications

• B05C7/02

  the liquid or other fluent material being projected · CPC title

• B05C5/027

  Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated (B05C5/0254 takes precedence) · CPC title

• B05B13/0618 Primary

  only a part of the inside of the hollow bodies being treated · CPC title

• B05C7/00

  Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work · CPC title

• B05C9/10

  the auxiliary operation being performed before the application (B05C9/14 takes precedence) · CPC title