US 11,851,200 B2
Fire resistance device designed to be placed between one end of a mounting strut for an aircraft turbomachine and a cowling of said turbomachine delimiting an inter-flow compartment
Bruno Alexandre Didier Jacon, Moissy-Cramayel (FR); Baghdad Achbari, Moissy-Cramayel (FR); and Hervé Simonotti, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR)
Appl. No. 17/253,441
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR)
PCT Filed Jun. 25, 2019, PCT No. PCT/FR2019/051554
§ 371(c)(1), (2) Date Dec. 17, 2020,
PCT Pub. No. WO2020/002822, PCT Pub. Date Jan. 2, 2020.
Claims priority of application No. 1856041 (FR), filed on Jun. 29, 2018.
Prior Publication US 2021/0122482 A1, Apr. 29, 2021
Int. Cl. F02C 7/25 (2006.01); B64D 27/26 (2006.01); F02C 7/20 (2006.01); B64D 27/18 (2006.01); B64D 45/00 (2006.01); F02C 7/28 (2006.01)
CPC B64D 27/26 (2013.01) [F02C 7/20 (2013.01); B64D 27/18 (2013.01); B64D 2045/009 (2013.01); F02C 7/25 (2013.01); F02C 7/28 (2013.01); F05D 2220/323 (2013.01); F05D 2240/55 (2013.01); F05D 2240/90 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A fire resistance device designed to be placed between an upstream end of a mounting strut of an aircraft twin-spool turbomachine, and a connection cowling installed on said turbomachine, said connection cowling being designed to connect an upstream ring delimiting part of an inter-flow compartment radially outwards, to an arm passing radially through a fan flow stream of the turbomachine, wherein the device comprises:
a contact structure comprising a first contact lip with a C-shaped section, the contact structure also comprising a beaded segment at one on the longitudinal ends of the first contact lip, one of the axial ends of the beaded section is open and is continuous with the first lip and the other axial end is closed off, the first lip and the beaded segment together defining a first contact end extending along a first curved line;
a support portion; and
a second contact lip supported by the support portion through a junction zone that supports the beaded segment of the contact structure, the second contact lip having a second contact end extending along a second line distinct from the first line,
and wherein the fire resistance device is a single-piece.