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Turbojet engine and starting device thereof

A technology of turbojet engine and starting device, which is applied in the direction of machines/engines, jet propulsion devices, gas turbine devices, etc., and can solve the problems of spring or disc spring life limitation, sticking, etc.

Pending Publication Date: 2022-06-03
清航空天(北京)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing starting devices that use the starter motor to rotate, the clutch mostly uses a spring or a disc spring to ensure disengagement. In practical applications, there is a risk of sticking, and the spring or disc spring has a life limit.

Method used

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  • Turbojet engine and starting device thereof
  • Turbojet engine and starting device thereof
  • Turbojet engine and starting device thereof

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Embodiment Construction

[0032] In order to make those skilled in the art better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] For ease of understanding and concise description, the following description will be combined with the turbojet engine and its starting device, and the beneficial effects will not be repeated.

[0034] Please refer to Figure 1 to Figure 3 , figure 1 It is a schematic structural diagram of the starting device of the turbojet engine in the specific embodiment; figure 2 for figure 1 A schematic structural diagram of the shown starting device from another perspective;

[0035] image 3 for figure 1 Schematic cross-section of the activation device shown.

[0036] The turbojet engine needs to be started with the help of a starting device. This article focuses on improving the starting device. Other structures of the turbojet engin...

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Abstract

The invention discloses a turbojet engine and a starting device thereof, the starting device comprises a starting motor, an output shaft of the starting motor is connected with a clutch, and the clutch can slide in the axial direction of the output shaft so as to be connected with or disconnected from a main shaft of the engine; the clutch further comprises a first magnet and a second magnet, the position of the first magnet and the position of the starting motor are relatively fixed, the second magnet is installed on the clutch and is close to the first magnet, and magnetic attraction force exists between the first magnet and the second magnet. The clutch of the starting device adopts a magnetic type pre-tightening structure, so that the contact design of traditional spring pre-tightening is avoided, the problem of clamping stagnation is avoided, the reliability of the structure is improved, and the service life of the structure is prolonged.

Description

technical field [0001] The invention relates to the technical field of turbojet engines, in particular to a turbojet engine and a starting device thereof. Background technique [0002] When the turbojet engine is started, since the power of the turbine is less than that of the compressor, it must be started with the aid of an auxiliary device. [0003] For micro and small turbojet engines, high-pressure gas is generally used to blow, or gunpowder impacts the turbine, or the starter motor rotates; among them, the starter motor is a reusable method, which is more commonly used; usually, the starter motor Used in conjunction with the clutch, at low speed, the clutch is thrown out by the motor and remains connected to the engine. After the engine speed rises, the starter motor is turned off and the clutch is automatically disengaged. [0004] In the existing starting device using the starting motor to rotate, the clutch mostly uses a spring or a disc spring to ensure disengagem...

Claims

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Application Information

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IPC IPC(8): F02C7/268
CPCF02C7/268Y02T50/60
Inventor 何家祥董琨尹法辉赵学松
Owner 清航空天(北京)科技有限公司
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