초록 ▼

A twin flow turbo-jet engine which includes an inner structural cowling formed by two lateral shells and which is secured through the intermediary of a securing mechanism such as fluid actuators between a forward flange and a rear flange of the casing of the engine. At least one of the securing devi

A twin flow turbo-jet engine which includes an inner structural cowling formed by two lateral shells and which is secured through the intermediary of a securing mechanism such as fluid actuators between a forward flange and a rear flange of the casing of the engine. At least one of the securing devices enables free thermal expansion of the casing. The upstream edge of the inner cowling may include an annular seat which is in sliding abutment on the outer surface of one cylindrical annular member carried by one flange of the engine casing. The downstream edge of the cowling is connected by an annular tooth-groove connection with a support ring of which the securing to the casing is provided by a system of radial pins and ball joints.

대표청구항 ▼

In a twin-flow turbo-jet engine, a casing comprising a compressor, a combustor and a turbine, defining a path for a first flow and having upstream flange means, and downstream flange means; inner structural cowling means in the form of two half-shells; outer cowling means wherein said inner and oute

In a twin-flow turbo-jet engine, a casing comprising a compressor, a combustor and a turbine, defining a path for a first flow and having upstream flange means, and downstream flange means; inner structural cowling means in the form of two half-shells; outer cowling means wherein said inner and outer cowling means define between them a path for a second flow downstream of a fan; means for mounting the half-shells to said upstream and downstream flanges of the casing; and at least one securing assembly interconnecting the inner structural cowling means and one of the casing flange means, said securing assembly comprising means for enabling free thermal expansion of the casing relative to the inner structural cowling wherein the securing assembly includes slide means enabling free differential longitudinal expansion between the casing and the inner cowling means and wherein the securing assembly further comprises at least three, regularlyspaced, axial pin assemblies, each pin assembly comprising: a first element in the form of a pin, and a second element in the form of a spherical body with a central bore, an end portion of the pin engaging in the bore of the spherical body, means for securing one said element to the engine casing, and housing means accommodating the spherical body, the housing means being connected to one of the half-shells of the inner cowling means.