Multi-section TRT stationary blade inner shell
A multi-section inner shell technology, applied in the direction of stator, engine components, machine/engine, etc., can solve the problem of excessive radial clearance, inconvenient processing of the second-stage stationary vane installation holes, and diameter expansion of the TRT stationary vane inner shell Problems such as a single expansion angle can achieve the effect of facilitating chamfering processing, improving processing efficiency, and improving efficiency
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[0020] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.
[0021] Such as figure 2 As shown, this embodiment provides a multi-section TRT vane inner casing, including a coaxially arranged and sequentially connected primary air intake section 1, primary diameter expansion section 2, secondary air intake section 3 and secondary Stage diameter expansion section 4, the first circular arc section 101 that can cooperate with the spherical surface of the first-stage vane 5 is provided on the circumference of the first-stage air intake section 1, and the first arc section 101 that can cooperate with the spherical surface of the first-stage stator blade 5 is provided on the circum...
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