Connecting rod for a turbine engine, with an integrated filter, and production method thereof

Abstract

A connecting rod, in particular for a turbine engine, includes an intermediate body with a general elongated shape. Connecting heads may be located at the longitudinal ends of the elongated shape, which may include holes having axes that are, for example, substantially parallel. The connecting rod is characterized in that the heads are assembled or formed as a single piece with at least one part of the body. At least one of the heads includes an alveolar annular part, about the axis of the hole, forming a vibrating filter and having a flexural and/or compressive deformation capacity greater than that of the rest of the connecting rod and, in particular, that of the body.

1 . A connecting rod for a turbomachine, comprising an elongated intermediate body and connected at longitudinal ends to connecting heads, wherein the connecting heads include orifices with substantially parallel axes, wherein said heads are either assembled or integrally formed with at least one part of said body and at least one of said heads comprises an alveolar annular part about the axis of the orifice of said at least one head, wherein said alveolar annular part forms a vibratory filter and said alveolar annular part has at least one of a flexural and a compressive deformation capacity greater than a remaining portion of the connecting rod. 
     
     
         2 . The connecting rod according to  claim 1 , wherein the connecting rod is at least partially metallic. 
     
     
         3 . The connecting rod according to  claim 2 , wherein said body and said heads are partially metallic. 
     
     
         4 . The connecting rod according to  claim 2 , wherein an electrical resistance of the connecting rod is less than or equal to 5 mΩ. 
     
     
         5 . The connecting rod according to  claim 2 , wherein electrical conductance of the connecting rod is greater than or equal to 200 S. 
     
     
         6 . The connecting rod according to  claim 1 , wherein said alveolar annular part comprises a lattice-shaped structure. 
     
     
         7 . The connecting rod according to  claim 1 , wherein said body comprises an alveolar longitudinal part. 
     
     
         8 . The connecting rod according to  claim 7 , wherein said longitudinal part comprises a lattice-shaped structure. 
     
     
         9 . A suspension device for a turbomachine, comprising a connecting rod according to  claim 1 , the suspension device further comprising an assembly comprising a ball joint and a cage that surrounds the ball joint and is located in the orifice of the connecting head that comprises said annular part. 
     
     
         10 . A method for producing a connecting rod according to  claim 1 , wherein the method comprises a step of additive manufacturing of the connecting rod. 
     
     
         11 . The method of  claim 10 , wherein the additive manufacturing includes selective melting of powder beds. 
     
     
         12 . The method of  claim 10 , wherein the method further comprises a step of additive manufacturing of the alveolar annular part. 
     
     
         13 . The connecting rod according to  claim 2 , wherein the alveolar annular part of one of the heads is partially metallic. 
     
     
         14 . The connecting rod according to  claim 2 , wherein an electrical resistance of the connecting rod is less than or equal to 2.5 mΩ. 
     
     
         15 . The connecting rod according to  claim 2 , wherein an electrical conductance of the connecting rod is greater than or equal to 400 S.