US 11,927,215 B2
Turbomachine clevis with built-in filter and method of producing said clevis
Simon Pierre Mathieu Mabire, Moissy-Cramayel (FR)
Assigned to SAFRAN TRANSMISSION SYSTEMS, Colombes (FR)
Appl. No. 16/482,201
Filed by SAFRAN TRANSMISSION SYSTEMS, Colombes (FR)
PCT Filed Jan. 30, 2018, PCT No. PCT/FR2018/050211
§ 371(c)(1), (2) Date Jul. 30, 2019,
PCT Pub. No. WO2018/142058, PCT Pub. Date Aug. 9, 2018.
Claims priority of application No. 1750862 (FR), filed on Feb. 2, 2017.
Prior Publication US 2020/0124084 A1, Apr. 23, 2020
Int. Cl. F16C 11/04 (2006.01); B22F 5/00 (2006.01); B22F 10/28 (2021.01); F16C 27/02 (2006.01); B22F 10/73 (2021.01); B22F 12/52 (2021.01); B22F 12/63 (2021.01); B22F 12/67 (2021.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01); B64D 27/26 (2006.01)
CPC F16C 27/02 (2013.01) [B22F 5/009 (2013.01); B22F 10/28 (2021.01); F16C 11/045 (2013.01); B22F 10/73 (2021.01); B22F 12/52 (2021.01); B22F 12/63 (2021.01); B22F 12/67 (2021.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12); B64D 2027/266 (2013.01); Y10T 403/32918 (2015.01)] 2 Claims
OG exemplary drawing
 
1. A suspension device for a turbomachine, comprising:
a clevis comprising:
a support plate configured to be attached to a casing of the turbomachine,
an annular ring portion having an aperture extending therethrough,
a peripheral frame coupling the annular ring portion to the support plate, the peripheral frame extending from opposing sides of the annular ring portion and defining an enclosed area between the annular ring portion and the support plate,
a first annular honeycomb-shaped mesh portion disposed within the aperture of the annular ring portion and comprising an aperture therethrough configured to receive a clevis hinge pin assembly, forming a vibration filter and having a compressive and/or flexural strain capacity greater than a rest of the clevis, and
a second main honeycomb-shaped mesh portion disposed within the enclosed area, independent from the first annular honeycomb-shaped mesh portion, extending between an outer periphery of the annular ring portion and an inner periphery of the peripheral frame, the first annular honeycomb-shaped mesh portion having at least one of a compressive strain capacity and a flexural strain capacity greater than the second main honeycomb-shaped mesh portion,
wherein the support plate, the annular ring portion and the first and second honeycomb-shaped mesh portions of the clevis are formed in one piece from metal powder via an additive manufacturing process; and
a clevis hinge pin assembly comprising a ball disposed on a hinge pin and a cage that pivotably surrounds the ball and is bonded or attached in the aperture of the first annular honeycomb-shaped mesh portion.