Double-layer receiver structured air compressor and aircraft engine with same

Abstract

The invention relates to a double-layer receiver structured air compressor. The double-layer receiver structured air compressor comprises an outer-layer receiver and an inner-layer receiver, wherein the outer-layer receiver includes a front section outer-layer receiver and a back section outer-layer receiver; the front section outer-layer receiver is connected with the back section outer-layer receiver, and the back section outer-layer receiver is connected to a combustion chamber receiver to form a whole force bearing receiver of the air compressor; the inner-layer receiver includes a front section inner-layer receiver, a middle section inner-layer receiver, a force bearing transfer receiver and a back section inner-layer receiver; the front section inner-layer receiver, the middle section inner-layer receiver, the force bearing transfer receiver and the back section inner-layer receiver are connected in sequence; the front section inner-layer receiver is mounted on the front section outer-layer receiver through a convex lug; the back section inner-layer receiver is connected to the combustion chamber receiver; and the inner-layer receiver and the outer-layer receiver form a whole-ring double-layer receiver structure. The front section inner-layer receiver, a middle section inner-layer receiver, a force bearing transfer receiver and a back section inner-layer receiver has such advantages as simple structure, high force bearing capacity and light mass.

Description

technical field [0001] The invention belongs to the field of turbofan engines, in particular to a compressor double-layer casing structure. Background technique [0002] In the turbofan engine structure, the thrust of the engine is transmitted to the mounting joint connected with the aircraft through the casing of the engine, so as to realize the transmission of thrust. Therefore, the engine casing is an important load-bearing component, which requires it to have good rigidity. With the development of turbofan engine design technology, the thrust-to-weight ratio of the turbofan engine increases, the pressure ratio of the compressor components gradually increases, and the flow path of the stage behind the compressor components also shrinks. At the outlet of the compressor, the air flow needs to expand to enter the combustion chamber components, so the entire air flow channel is in the form of first contraction and then expansion. Since the casing needs to form the flow path...

AI Technical Summary

Problems solved by technology

Since the casing needs to form the flow path of the entire compressor, the structure of the casing in the conventional design shrinks first and then expands with the flow path of the air flow, and the rigidity of the casing in this structure is weak, which is not good for the force transmission of the entire engine

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