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A flow control method for hydraulic pump load of aero-engine test bench

An aero-engine and flow control technology, which is used in engine testing, machine/structural component testing, measuring devices, etc. It can solve problems such as single equipment performance, and achieve flexible changes, high response speed, and small footprint.

Inactive Publication Date: 2017-08-04
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of single performance of the original equipment, and specially provides a flow control method of the hydraulic pump load of the aero-engine test bench

Method used

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  • A flow control method for hydraulic pump load of aero-engine test bench
  • A flow control method for hydraulic pump load of aero-engine test bench
  • A flow control method for hydraulic pump load of aero-engine test bench

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This embodiment provides a hydraulic pump load system for an aero-engine test bench, which is characterized in that: the hydraulic pump load system for an aero-engine test bench includes a fuel supply assembly 1, a fuel supply pipeline 2, a hydraulic pump 3, and a high-pressure pipe Road 4, adjustable nozzle 5, hydraulic control valve 6, solenoid valve 7, flow meter 8, oil return pipeline 9;

[0024] Among them: the adjustable flow nozzle 5, the hydraulic control valve 6 and the solenoid valve 7 together form a flow control assembly; the oil supply assembly 1 is connected to the inlet of the hydraulic pump 3 through the oil supply pipeline 2, the engine drives the hydraulic pump 3, and the hydraulic pump 3 is connected with the group flow control assembly through the high-pressure pipeline 4, and the flow meter 8 is installed on the oil return pipeline 9.

[0025] The hydraulic oil reaches the inlet of the hydraulic pump 3 from the oil supply assembly 1 through the oil ...

Embodiment 2

[0032] This embodiment provides a hydraulic pump load system for an aero-engine test bench, which is characterized in that: the hydraulic pump load system for an aero-engine test bench includes a fuel supply assembly 1, a fuel supply pipeline 2, a hydraulic pump 3, and a high-pressure pipe Road 4, adjustable nozzle 5, hydraulic control valve 6, solenoid valve 7, flow meter 8, oil return pipeline 9;

[0033] Among them: the adjustable flow nozzle 5, the hydraulic control valve 6 and the solenoid valve 7 together form a flow control assembly; the oil supply assembly 1 is connected to the inlet of the hydraulic pump 3 through the oil supply pipeline 2, the engine drives the hydraulic pump 3, and the hydraulic pump 3 is connected with the group flow control assembly through the high-pressure pipeline 4, and the flow meter 8 is installed on the oil return pipeline 9.

[0034] The hydraulic oil reaches the inlet of the hydraulic pump 3 from the oil supply assembly 1 through the oil ...

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Abstract

A hydraulic pump load system for an aero-engine test bench, including an oil supply assembly, an oil supply pipeline, a hydraulic pump, a high-pressure pipeline, an adjustable nozzle, a hydraulic control valve, a solenoid valve, a flow meter, and an oil return pipeline; wherein: The regulating nozzle, the hydraulic control valve and the solenoid valve together form a group of flow control components; the oil supply component is connected to the inlet of the hydraulic pump through the oil supply pipeline, the engine drives the hydraulic pump, and the hydraulic pump is connected to the group flow control component through a high-pressure pipeline , The flow meter is installed on the oil return pipeline. System flow control method: Strictly control the outlet flow of the hydraulic pump, the number of adjustable nozzles is 9, of which the first 6-7 throttle nozzles perform flow distribution according to the load spectrum flow of the engine, and the remaining 2-3 throttle nozzles The nozzle is a fine-tuning orifice for small flow. The advantages of the present invention are: in terms of structure, it has the characteristics of small occupied area, flexible change and low failure rate; in terms of flow control, it has high response speed and accurate flow control.

Description

technical field [0001] The invention relates to the field of ground testing of aero-engines, in particular to a flow control method for a hydraulic pump load of an aero-engine testing platform. Background technique [0002] One of the main purposes of the aeroengine mechanical transmission system is to provide power for the operation of aircraft accessories such as hydraulic pumps, convert mechanical work into hydraulic kinetic energy, and provide hydraulic sources for various hydraulic systems on the ground and in flight. In the production assessment test of various types of engines, the transmission system needs to complete the running-in test under full load state and the function inspection before leaving the factory, among which the hydraulic pump is the main load of the transmission system load. [0003] Since the complex aircraft hydraulic system cannot be installed on the ground test bench, a simulated load system is generally used to consume the hydraulic energy gen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M15/00
Inventor 赵志刚范世新石丹冯忠海陈宇
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION