US 11,927,107 B2
Tool and method for disassembling and moving a TRV-type turbine casing of an aircraft turbine engine
Sébastien Georges Cistac, Moissy-Cramayel (FR); and Olivier Jean Caudron, Moissy-Cramayel (FR)
Assigned to SAFRAN AIRCRAFT ENGINES, Paris (FR)
Appl. No. 17/627,185
Filed by SAFRAN AIRCRAFT ENGINES, Paris (FR)
PCT Filed Jul. 16, 2020, PCT No. PCT/FR2020/051275
§ 371(c)(1), (2) Date Jan. 14, 2022,
PCT Pub. No. WO2021/009464, PCT Pub. Date Jan. 21, 2021.
Claims priority of application No. 1908063 (FR), filed on Jul. 17, 2019.
Prior Publication US 2022/0275735 A1, Sep. 1, 2022
Int. Cl. F01D 25/28 (2006.01); B64F 5/10 (2017.01)
CPC F01D 25/285 (2013.01) [B64F 5/10 (2017.01); F05D 2220/323 (2013.01); F05D 2230/70 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A tool for disassembling and moving a TRV-type turbine casing of an aircraft turbine engine, the turbine casing comprising internal and external annular shells, which extend one inside the other and around a same axis and are connected together by arms, the tool comprising:
a lower carriage configured to move the tool, and
an upper plate configured to be fastened to the turbine casing the upper plate being supported by the lower carriage and comprising first members configured to cooperate with a first annular flange of one of the internal and external annular shells to support the turbine casing and axially immobilize same with respect to the tool, and second members configured to cooperate with a second annular flange of the other of the internal and external annular shells to rotatably guide and/or block the turbine casing about said axis, the upper plate comprising a lower end connecting to the lower carriage and an upper end connecting to the ring sector, the lower end forming a stationary segment part of the upper plate, the upper end forming part of a movable segment part of the upper plate,
wherein the first members comprise hooks which are each connected to a knob and movable by the knob from a first unlocking position to a second position for locking and immobilizing the turbine casing, the first members are supported by a ring sector of the upper plate, the ring sector being configured to be applied axially to the first annular flange.