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A test system and test method for lubricating oil pump set

A test system, a technology for lubricating oil pumps, applied in pump testing, liquid variable capacity machinery, machines/engines, etc., can solve problems such as low adjustment accuracy, large pressure fluctuation, and poor stability, and achieve the effect of solving poor adjustment accuracy.

Active Publication Date: 2021-08-17
AECC SHENYANG ENGINE RES INST
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  • Claims
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Problems solved by technology

In the traditional test process, the high-altitude debugging uses a vacuum pump to evacuate the lubricating oil tank on the inlet side of the lubricating oil pump unit, thereby forming a vacuum condition on the inlet side of the lubricating oil pump unit. However, the debugging process uses the method of repeatedly starting and stopping the vacuum pump. Due to the working inertia of the suction effect, the pressure fluctuates greatly during the adjustment process, the stability is poor, the adjustment accuracy is low, and the operation of repeatedly starting and stopping the vacuum pump is easy to cause damage to the vacuum pump

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  • A test system and test method for lubricating oil pump set
  • A test system and test method for lubricating oil pump set

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Embodiment Construction

[0031] In order to make the objectives, technical solutions and advantages of the implementation of the application clearer, the technical solutions in the implementation modes of the application will be described in more detail below with reference to the drawings in the implementation modes of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the present application. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application. Embodiments of the pr...

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Abstract

The application belongs to the technical field of aero-engine testing, and relates to a lubricating oil pump set testing system and testing method. The lubricating oil pump unit test system includes a heated lubricating oil tank and a lubricating oil pump unit, and forms a main circulation loop. The heated lubricating oil tank is a closed chamber and is connected with an air extraction pipeline. A vacuum pump is arranged on the air extraction pipeline. The test system of the lubricating oil pump set also includes: an oil-gas mixing box, the first inlet of the oil-gas mixing box is connected to the heated lubricating oil tank, the second inlet is connected to a gas source, and the gas source is high-pressure gas, and the oil-gas mixing box The outlet end of the outlet is connected to the oil supply pipeline. This application realizes the automatic adjustment of oil supply and air supply respectively through the oil-air mixing box, which is used to approximate the mixing of lubricating oil-air in a specific bearing cavity, and the mixing effect is controllable. The test process of this application can be based on For the test requirements of different inlet conditions of the lubricating oil pump set, switch between pure oil, pure air or oil-gas two-phase conditions to meet all performance test requirements.

Description

technical field [0001] The application belongs to the technical field of aero-engine testing, and in particular relates to a lubricating oil pump set testing system and testing method. Background technique [0002] The aero-engine lubricating oil pump set is mainly used for the delivery and recovery of lubricating oil in engine bearings and transmission gears. At present, the lubricating oil pumps of aero-engines are generally divided into one-stage oil supply stage and multi-stage oil return stage. Pure oil is supplied to each chamber to meet the lubricating and cooling requirements of the mechanical parts in each chamber, and each oil return stage pumps the lubricating oil in each chamber back to the lubricating oil tank to form a circulation system. Since the oil return circuit of each stage sucks the oil-gas mixture in each chamber, its oil return capacity is required to be greater than the lubricating oil supply in the chamber corresponding to the stage. In order to ve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B51/00
CPCF04B51/00
Inventor 路彬毛宏图刘建国
Owner AECC SHENYANG ENGINE RES INST
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