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Power-turbine-adjustable engine

A power turbine and engine technology, which is applied in engine control, machine/engine, gas turbine device, etc., can solve the problem of not being able to independently adjust the working capacity of the power turbine, achieve the effects of reducing heat generation, improving work performance and life, and avoiding fuel waste

Active Publication Date: 2017-08-25
AECC HUNAN AVIATION POWERPLANT RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides an adjustable power turbine engine to solve the technical problem that the existing gas turbine engine cannot independently adjust the working capacity of the power turbine when the working state of the gas generator remains unchanged

Method used

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Embodiment Construction

[0025] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] refer to figure 1 , the preferred embodiment of the present invention provides a kind of power turbine adjustable engine, and this engine comprises: the blow-off device that is used for regulating the working capacity of power turbine 5 that is arranged between gas turbine 1 and power turbine 5, through blow-off The device releases part of the gas, thereby reducing the gas entering the power turbine 5 and reducing the working capacity of the power turbine 5 .

[0027] Specifically, when it is necessary to reduce the working capacity of the power turbine 5, open the venting device to release a part of the gas, thereby reducing the gas entering the power turbine 5 and reducing the working...

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Abstract

The invention discloses a power-turbine-adjustable engine. According to the engine, a gas discharge device used for regulating the work capacity of a power turbine is arranged between a gas turbine and the power turbine. When the work capacity of the power turbine needs to be lowered, the gas discharge device is opened to release a part of gas, and therefore gas entering the power turbine is reduced, and the work capacity of the power turbine is lowered. When the carried load is fixed and the state of a gas generator is not changed, the rotating speed of the power turbine is decreased. On one hand, the safety margin requirement for the critical rotation speed of the power turbine is met, and the fuel waste caused by meeting the requirement in the manner of increasing the idling rotating speed of the gas generator is avoided; and on the other hand, when the load of the engine is switched to be driven by the engine from the state that the load of the engine is not driven by the engine, in the process of increasing the rotating speed of the load, heating of a clutch is reduced, the work performance of the clutch is improved, and the service life of the clutch is prolonged.

Description

technical field [0001] The invention relates to the field of gas turbine engines, in particular to an adjustable power turbine engine. Background technique [0002] On the existing gas turbine engine, the flow between the low-pressure turbine and the turbine in front of it is generally designed according to the continuous flow. In this way, for the power type gas turbine engine, when the environmental conditions are certain, the work of the low-pressure turbine used as the power turbine The capacity is simply determined by the working state of the gas generator. If the environmental conditions and the working state of the gas generator remain unchanged, the working capacity of the power turbine will remain unchanged, and the relationship between the output torque and output speed of the power turbine will remain unchanged, which cannot be independently performed. adjust. [0003] The design of continuous flow mentioned above is sometimes not conducive to the design of turbo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C9/18
CPCF02C9/18F05D2270/02
Inventor 刘元轩
Owner AECC HUNAN AVIATION POWERPLANT RES INST