Hydraulic motor power extraction method for aero-engine

Abstract

The invention discloses a hydraulic motor power extraction method for an aero-engine, and the power extraction process comprises the steps: connecting a hydraulic motor with a rotating part of the aero-engine, driving the hydraulic motor to rotate through the work of the aero-engine, driving hydraulic oil to form a circulation loop through the work of the hydraulic motor, and increasing the heat energy of the hydraulic oil in the circulation process of the hydraulic oil. After the hydraulic oil generates heat energy, the heat energy is released through heat exchange of the radiator, flow data of the hydraulic oil are obtained through a flow meter installed on a pipeline at the front end of the flow adjusting valve, pressure data of the hydraulic oil are obtained from an oil outlet pipe, and the power of the aero-engine is extracted. The power extraction amount is controlled by controlling the outlet flow of the hydraulic motor through the flow regulating valve, and the adaptability of different aero-engines in different working states is achieved. The outlet flow of the hydraulic motor is controlled by adjusting the flow adjusting valve, so that the extraction power of the hydraulic motor can be changed and controlled according to requirements.

Description

Technical Field

[0001] This invention relates to a method for extracting power from a hydraulic motor used in an aero-engine, belonging to the field of aero-engine testing technology. Background Technology

[0002] When testing the power output of an aircraft engine, a hydraulic motor connected to the engine is sometimes used. See Chinese patent application publication number CN119860871A. Although the hydraulic motor drives the hydraulic oil circulation, and the engine power is extracted by obtaining the hydraulic oil flow and pressure, it cannot dissipate heat or cool the hydraulic oil in the pipeline. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a method for extracting power from a hydraulic motor used in an aero-engine.

[0004] The present invention is achieved through the following technical solutions.

[0005] This invention provides a method for extracting power from a hydraulic motor used in an aircraft engine, comprising: The hydraulic oil releases heat through heat exchange via a radiator within the system, achieving a power extraction process where the hydraulic oil's pressure value is not affected by heat.

[0006] The system includes a hydraulic tank, an aircraft engine, a hydraulic motor, a flow control valve, and a radiator.

[0007] The outlet of the hydraulic oil tank storing hydraulic oil is connected to the inlet of the hydraulic motor via an inlet pipe.

[0008] The hydraulic motor outlet is connected to the hydraulic oil tank return port via an oil outlet pipe.

[0009] The oil outlet pipe is equipped with a flow regulating valve and a radiator for cooling the hydraulic oil.

[0010] The power extraction process includes: connecting a hydraulic motor to the rotating part of an aircraft engine; the operation of the aircraft engine drives the hydraulic motor to rotate; the operation of the hydraulic motor drives the hydraulic oil to form a circulation loop; during the circulation of the hydraulic oil, the thermal energy of the hydraulic oil increases; after the hydraulic oil generates thermal energy, it releases the thermal energy through heat exchange in a radiator; the flow rate data of the hydraulic oil is obtained by a flow meter in the pipeline at the front end of the flow regulating valve; and the pressure data of the hydraulic oil is obtained on the oil outlet pipe to extract the power of the aircraft engine.

[0011] The beneficial effect of this invention is that by using the radiator in the system to cool the hydraulic oil, the problem of not being able to cool down the hydraulic oil in the pipeline is solved. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the system distribution of the present invention; In the diagram: 1-Hydraulic oil tank; 11-Inlet pipe; 12-Outlet pipe; 2-Aircraft engine; 3-Hydraulic motor; 4-Flow regulating valve; 5-Radiator. Detailed Implementation

[0013] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0014] like Figure 1 As shown.

[0015] This application discloses a method for extracting power from a hydraulic motor used in an aircraft engine, comprising: a system for use in a simulated loading device during aircraft engine bench testing. The system utilizes a radiator to cool the hydraulic oil, thus solving the problem of the inability to effectively cool the hydraulic oil in the pipelines.

[0016] The system includes a hydraulic oil tank 1 for storing hydraulic oil and a hydraulic motor 3 connected to the rotating part of the aircraft engine 2. The rotating shaft of the hydraulic motor 3 is detachably connected to the rotating part of the aircraft engine 2. The outlet of the hydraulic oil tank 1 is connected to the inlet of the hydraulic motor 3 through an oil inlet pipe 11, and the outlet of the hydraulic motor 3 is connected to the return port of the hydraulic oil tank 1 through an oil outlet pipe 12.

[0017] A flow regulating valve 4 and a radiator 5 for cooling the hydraulic oil are installed on the oil outlet pipe 12. Hydraulic oil flow rate data is obtained through a flow meter installed on the pipeline upstream of the flow regulating valve 4, and hydraulic oil pressure data is obtained through the oil outlet pipe 12. At this time, the hydraulic motor 3 acts as a pump, and the pump's output power (P) = flow rate (Q) × pressure (P) × efficiency coefficient (η). The hydraulic motor 3 is driven to rotate by the aircraft engine 2, thus extracting power from the aircraft engine 2.

[0018] The hydraulic motor 3 is connected to the rotating part of the aircraft engine 2. When the aircraft engine 2 is working, it drives the hydraulic motor 3 to rotate. The hydraulic motor 3 drives the hydraulic oil to form a circulation loop. During the circulation of the hydraulic oil, the heat energy of the hydraulic oil increases. After the hydraulic oil generates heat energy, it releases the heat energy through the heat exchanger 5.

[0019] The outlet of hydraulic motor 3 is controlled by flow regulating valve 4. flow This allows for control over the amount of power extracted, enabling adaptability to different aero-engine models and operating conditions.

[0020] The outlet of the hydraulic motor 3 is controlled by adjusting the flow regulating valve 4. flow This allows the hydraulic motor 3 to extract power that can be varied and controlled according to demand.

Claims

1. A method for extracting power from a hydraulic motor used in an aircraft engine, characterized in that, include: The hydraulic oil heat energy is released through heat exchange via the radiator (5) in the system, realizing the power extraction process in which the hydraulic oil does not have the influence of heat energy on the pressure value.

2. The method for extracting power from a hydraulic motor for an aircraft engine as described in claim 1, characterized in that: The system includes a hydraulic tank (1), an aircraft engine (2), a hydraulic motor (3), a flow control valve (4), and a radiator (5).

3. The method for extracting power from a hydraulic motor for an aircraft engine as described in claim 2, characterized in that: The outlet of the hydraulic oil tank (1) storing hydraulic oil is connected to the inlet of the hydraulic motor (3) via an oil inlet pipe (11).

4. The method for extracting power from a hydraulic motor for an aircraft engine as described in claim 2, characterized in that: The outlet of the hydraulic motor (3) is connected to the return port of the hydraulic oil tank (1) through the oil outlet pipe (12).

5. The method for extracting power from a hydraulic motor for an aircraft engine as described in claim 4, characterized in that: The oil outlet pipe (12) is equipped with a flow regulating valve (4) and a radiator (5) for cooling the hydraulic oil.

6. The method for extracting power from a hydraulic motor for an aircraft engine as described in claim 1, characterized in that, The power extraction process includes: connecting the hydraulic motor (3) to the rotating part of the aircraft engine (2), the aircraft engine (2) working to drive the hydraulic motor (3) to rotate, the hydraulic motor (3) working to drive the hydraulic oil to form a circulation loop, during the circulation of the hydraulic oil, the heat energy of the hydraulic oil increases, after the hydraulic oil generates heat energy, the heat energy is released through the heat exchanger (5), the flow meter installed on the front end of the flow regulating valve (4) obtains the hydraulic oil flow data, and the hydraulic oil pressure data is obtained on the oil outlet pipe (12) to extract the power of the aircraft engine (2).

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