Method for assembling turbomachine parts and assembly used during such a method

Patent metadata

Field	Value
Publication number	US-2016153298-A1
Application number	US-201414904335-A
Country	US
Kind code	A1
Filing date	Jul 17, 2014
Priority date	Jul 18, 2013
Publication date	Jun 2, 2016
Grant date	—

Abstract

A method for assembly of a first turbomachine part with at least one second turbomachine part, including an injection of a vulcanisable elastomer, preferably a silicone that can be vulcanised at ambient temperature called an RTV silicone, in an injection zone at the junction between the first and the second parts; local heating of the injection zone so as to vulcanise the vulcanisable elastomer.

First claim

1 - 10 . (canceled)

11 . A method for assembly of a first turbomachine part with at least one second turbomachine part, comprising:
injecting a vulcanisable elastomer in an injection zone at the junction between the first and the second parts, local heating of the injection zone so as to vulcanise the vulcanisable elastomer.

12 . The assembly method according to claim 11 , in which the first and the second parts are two annular parts configured to form a turbomachine guide vane after assembly.

13 . The method according to claim 11 , in which the local heating step is implemented using an assembly comprising a support for the first and the second parts and a local heating system comprising a heating zone and that is associated with the support such that the heating zone is facing the injection zone while the heating step is being performed.

14 . The method according to claim 13 , in which the assembly also acts as an assembly support used during the elastomer injecting.

15 . The method according to claim 11 , in which the local heating step is implemented with a heating element previously placed on the two parts of the turbomachine close to the injection zone.

16 . The method according to claim 11 , in which the local heating is implemented using a remote heating system.

17 . The method according to claim 16 , in which the remote heating system is selected among the group consisting of a hot air blowing system at the injection zone, laser radiation and microwave radiation.

18 . The method according to claim 11 , in which the vulcanisable elastomer is a silicone that can be vulcanised at ambient temperature called an RTV silicone.

19 . An assembly for assembling a first turbomachine part with at least a second turbomachine part by injection and vulcanisation of a vulcanisable elastomer in an injection zone at the junction of the first and the second parts, wherein said assembly comprises a support and a local heating system, the local heating system comprising a heating zone, said support and said heating system being associated such that the heating zone faces the injection zone once the first part and the second part have been assembled.

20 . The assembly according to claim 19 , in which the local heating system includes, for furnishing the heating surface, a heating means selected among the group consisting of a circuit carrying a heating liquid, a heating resistance, a Peltier effect system and an induction coil.

21 . The assembly according to claim 20 , in which the local heating system is integrated into the support.

22 . The assembly according to claim 21 , in which the local heating system is integrated into the support by forming an annular centring wall designed and arranged to centre the assembly formed by the first part and the second part.

23 . The assembly according to claim 21 , in which the complete assembly forms a support for the assembly of a turbomachine guide vane.

Assignees

• Snecma

Inventors

• Vatin Eric Raymond Jean

Classifications

• F05D2240/12

  Fluid guiding means, e.g. vanes · CPC title

• F01D9/044 Primary

  permanently, e.g. by welding, brazing, casting or the like · CPC title

• F05D2230/23

  by permanently joining parts together · CPC title

• F05D2300/501

  Elasticity · CPC title

• F05D2230/60

  Assembly methods · CPC title