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Micro-turbojet engine for novel double-face compound impeller

A turbojet engine and composite impeller technology, applied in engine ignition, engine components, machines/engines, etc., can solve the problems of no turbine cooling, high energy utilization rate, etc., to increase the temperature before the turbine and reduce the axial size , the effect of reducing the degree of vibration

Inactive Publication Date: 2019-09-24
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology

[0003] In order to solve the above-mentioned technical problems that the current micro-turbojet engine has no regenerator to recover the turbine exhaust temperature and no turbine cooling design, and then cannot realize high energy utilization rate and high-performance micro-turbojet engine, the present invention provides a double-sided Micro turbojet engine with new compound impeller

Method used

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  • Micro-turbojet engine for novel double-face compound impeller
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  • Micro-turbojet engine for novel double-face compound impeller

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Embodiment Construction

[0017] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0018] In this embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right side", "left end", "above", "back", "middle", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation , and therefore cannot be construed as a limitation of the present invention.

[0019] see figure 1 , figure 2 , image 3 , Figure...

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Abstract

The invention discloses a micro-turbojet engine for a novel double-face compound impeller. The micro-turbojet engine comprises a starting part, a rotary part, a casing part and a rectification part. The starting part is arranged in front of the casing part. The rotary part is arranged behind the starting part. The rectification part is arranged behind the casing part. The rotary part comprises the novel double-face compound impeller, a spindle and a bearing. The spindle and the novel double-face compound impeller are connected seamlessly fixedly. The novel double-face compound impeller comprises a double-face centrifugal gas compressor. A hollow axial flow turbine is arranged in the outer extending position of a rim of the double-face centrifugal gas compressor. The double-face centrifugal gas compressor comprises two single centrifugal gas compressors which are fixedly connected back to back. The micro-turbojet engine has the advantages that heat efficiency is improved, and the oil consumption rate is lowered; the axial dimension of the micro-turbojet engine is reduced, the vibration degree is lowered, and stability is improved; and turbine front temperature can be increased with hollow turbine cooling design.

Description

technical field [0001] The invention relates to the technical field of turbojet engines, in particular to a miniature turbojet engine with double-sided novel composite impellers. Background technique [0002] At present, various types of micro-aircraft are developing rapidly, which also promotes the development of corresponding micro-turbojet engines. The traditional micro-turbojet engine technology is mature and widely used, but it has no regenerator and turbine cooling design, so it improves energy utilization and performance. limited, and thus cannot meet the needs of special-purpose micro-aircraft. Therefore, developing a high-quality micro-turbojet engine has become a research hotspot in this field. In order to increase its energy utilization rate and propulsion performance without a regenerator, a new double-sided composite impeller micro-turbojet engine proposed by the patent of the present invention is expected to greatly improve these problems. Its double-sided cen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K3/00F02C7/26F02C7/08F04D29/28
CPCF02C7/08F02C7/26F02K3/00F04D29/285
Inventor 张呈王云
Owner NANCHANG HANGKONG UNIVERSITY
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