CN-122016330-A - Hydraulic motor power extraction method for aero-engine

Abstract

The invention discloses a power extraction method of a hydraulic motor for an aeroengine, which comprises the steps of connecting the hydraulic motor with a rotating part of the aeroengine, enabling the aeroengine to work to drive the hydraulic motor to rotate, enabling hydraulic oil to form a circulation loop through the hydraulic motor, increasing heat energy of the hydraulic oil in the circulation process of the hydraulic oil, releasing the heat energy through heat exchange of a radiator after the heat energy is generated by the hydraulic oil, acquiring flow data of the hydraulic oil through a flowmeter arranged on a pipeline at the front end of a flow regulating valve, and acquiring pressure data of the hydraulic oil through an oil outlet pipe to extract power of the aeroengine. The flow regulating valve controls the outlet flow of the hydraulic motor to control the power extraction amount, so that the adaptability of different aero-engine models and different working states is realized. The outlet flow of the hydraulic motor is controlled by adjusting the flow regulating valve, so that the extraction power of the hydraulic motor can be changed and controlled according to the requirements.

Inventors

• ZHOU JU
• XU KE
• WANG HONGBIN
• XIE MANRONG

Assignees

• 中国航发贵阳发动机设计研究所

Dates

Publication Date

20260512

Application Date

20260202

Claims (6)

1. 1. A method of extracting power from a hydraulic motor for an aircraft engine, comprising: And the heat exchange of a radiator (5) in the system releases the heat energy of the hydraulic oil, so that the power extraction process that the heat energy of the hydraulic oil does not influence the pressure value is realized.
2. 2. The method for extracting power from a hydraulic motor for an aircraft engine according to claim 1, wherein the system comprises a hydraulic oil tank (1), an aircraft engine (2), a hydraulic motor (3), a flow regulating valve (4) and a radiator (5). .
3. 3. The method for extracting the power of the hydraulic motor for the aeroengine according to claim 2, wherein the outlet of the hydraulic oil tank (1) for storing hydraulic oil is connected with the inlet of the hydraulic motor (3) through an oil inlet pipe (11).
4. 4. The method for extracting power of hydraulic motor for aeroengine as claimed in claim 2, wherein the outlet of the hydraulic motor (3) is communicated with the oil return port of the hydraulic oil tank (1) through an oil outlet pipe (12).
5. 5. The method for extracting power from a hydraulic motor for an aircraft engine according to claim 4, wherein the oil outlet pipe (12) is provided with a flow regulating valve (4) and a radiator (5) for radiating and cooling hydraulic oil.
6. 6. The power extraction method for the hydraulic motor for the aeroengine according to claim 1, wherein the power extraction process comprises the steps of connecting a hydraulic motor (3) with a rotating part of the aeroengine (2), enabling the aeroengine (2) to work to drive the hydraulic motor (3) to rotate, enabling hydraulic oil to be driven by the hydraulic motor (3) to form a circulation loop, enabling hydraulic oil heat energy to be increased in the hydraulic oil circulation process, enabling the heat energy to be released through heat exchange of a radiator (5) after the hydraulic oil generates the heat energy, acquiring hydraulic oil flow data through a flowmeter arranged on a front end pipeline of a flow control valve (4), and acquiring hydraulic oil pressure data through an oil outlet pipe (12) to extract power of the aeroengine (2).

Description

Hydraulic motor power extraction method for aero-engine Technical Field The invention relates to a hydraulic motor power extraction method for an aero-engine, and belongs to the technical field of aero-engine testing. Background When testing the power of an aeroengine operation, the engine is sometimes connected to a hydraulic motor for testing. See chinese patent application publication No. CN119860871a, although the engine is connected with a hydraulic motor to drive hydraulic oil to circulate, the engine power is extracted by obtaining the flow and pressure of the hydraulic oil, but the hydraulic oil in the pipeline cannot be cooled. Disclosure of Invention In order to solve the technical problems, the invention provides a hydraulic motor power extraction method for an aeroengine. The invention is realized by the following technical scheme. The invention provides a hydraulic motor power extraction method for an aeroengine, which comprises the following steps: and the heat energy of the hydraulic oil is released through heat exchange of a radiator in the system, so that the power extraction process that the pressure value is influenced by the heat energy of the hydraulic oil is not existed. The system comprises a hydraulic oil tank, an aeroengine, a hydraulic motor, a flow regulating valve and a radiator. And the outlet of the hydraulic oil tank for storing hydraulic oil is connected with the inlet of the hydraulic motor through an oil inlet pipe. The outlet of the hydraulic motor passes through the oil outlet pipe is communicated with an oil return port of the hydraulic oil tank. And the oil outlet pipe is provided with a flow regulating valve and a radiator for radiating and cooling hydraulic oil. The power extraction process comprises the steps of connecting a hydraulic motor with a rotating part of an aeroengine, enabling the aeroengine to drive the hydraulic motor to rotate, enabling the hydraulic motor to drive hydraulic oil to form a circulation loop, increasing heat energy of the hydraulic oil in the circulation process of the hydraulic oil, releasing the heat energy through heat exchange of a radiator after the heat energy is generated by the hydraulic oil, acquiring flow data of the hydraulic oil through a flowmeter of a pipeline at the front end of a flow regulating valve, and acquiring pressure data of the hydraulic oil on an oil outlet pipe to extract power of the aeroengine. The hydraulic oil cooling system has the beneficial effects that the problem that the hydraulic oil in a pipeline cannot be cooled by cooling through the radiator in the system is solved. Drawings FIG. 1 is a schematic diagram of the system distribution of the present invention; in the figure, a 1-hydraulic oil tank, an 11-oil inlet pipe, a 12-oil outlet pipe, a 2-aeroengine, a 3-hydraulic motor and a 4-flow regulating valve 5-radiator are shown. Detailed Description The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the above. As shown in fig. 1. The application discloses a hydraulic motor power extraction method for an aeroengine, which comprises a system used in simulated loading equipment for an aeroengine bench test. The radiator in the system is used for radiating and cooling the hydraulic oil, so that the problem that the hydraulic oil in a pipeline cannot be radiated and cooled is solved. The system comprises a hydraulic oil tank 1 for storing hydraulic oil and a hydraulic motor 3 connected with a rotating part of an aero-engine 2, wherein a rotating shaft of the hydraulic motor 3 is detachably connected with the rotating part of the aero-engine 2, an outlet of the hydraulic oil tank 1 is connected with an inlet of the hydraulic motor 3 through an oil inlet pipe 11, and an outlet of the hydraulic motor 3 is communicated with an oil return port of the hydraulic oil tank 1 through an oil outlet pipe 12. The oil outlet pipe 12 is provided with a flow regulating valve 4 and a radiator 5 for radiating and cooling hydraulic oil. The flow data of the hydraulic oil is acquired through a flowmeter arranged on a pipeline at the front end of the flow regulating valve 4, and the pressure data of the hydraulic oil is acquired on the oil outlet pipe 12. At this time, the hydraulic motor 3 corresponds to a pump, and the output power (P) =flow rate (Q) ×pressure (P) ×efficiency coefficient (η) of the pump is set to be equal to the hydraulic motor 3 to be rotated by the aircraft engine 2, so that the power extraction of the aircraft engine 2 is obtained. The hydraulic motor 3 is connected with the rotating part of the aero-engine 2, the aero-engine 2 works to drive the hydraulic motor 3 to rotate, the hydraulic motor 3 works to drive hydraulic oil to form a circulation loop, in the circulation process of the hydraulic oil, the heat energy of the hydraulic oil is increased, and after the hydraulic oil generates heat energy, the heat energy is release