Lubrication system and lubrication method

Abstract

The invention discloses a lubricating system and a lubricating method, which relate to the field of aero-engines and are used to improve the performance of the lubricating system so that multiple components are well lubricated. The lubrication system includes an oil supply part, a first valve, a first part and a second part. The oil supply part is used to supply lubricating oil; the first valve is connected with the oil supply part; the first valve is arranged between the oil inlet of the first part and the oil supply part, and is also arranged between the oil inlet and the supply part of the second part. between oil parts. Therein, the first valve is configured to adjust the amount of lubricating oil distributed to the first component and the second component. The above technical solution realizes the distribution of the amount of lubricating oil entering the first component and the second component according to the demand under the condition of a certain amount of oil intake, so that the lubricating effect of the lubrication system is better.

Description

technical field [0001] The invention relates to the field of aero-engines, in particular to a lubricating system and a lubricating method. Background technique [0002] The power transmission system of aero-engine is based on mechanical transmission. Whether the power transmission system can work reliably depends to a large extent on the performance of the lubrication system. The lubrication system is used to supply lubricating oil to each oil supply point in the engine to reduce the friction and wear of the moving dual surface, prevent the corrosion and surface hardening of the components, take away the heat generated by friction and the heat transferred to the lubricating oil by the high-temperature parts, and bring the Walk the hard inclusions formed between the dual faces. [0003] In the related art, the lubricating oil system of the aero-engine adopts a closed circulation system, which mainly includes a lubricating oil tank for storing lubricating oil, a lubricating o...

AI Technical Summary

Problems solved by technology

For an engine that uses a fan-driven gearbox, since the lubricating oil demand of the fan-driven gearbox is much larger than that of the current aero-engine lubricating oil system, if the traditional full-flow lubricating oil system is used, the rated flow rate of the oil supply pump required is very large. As a result, the volume and weight of the oil supply pump are greatly increased

At the same time, because the amount of lubricating oil required by the fan-driven gearbox is not proportional to the rotational speed of the engine rotor, the current lubricating oil system leads to insufficient oil supply under certain working conditions, and the fan-driven gearbox cannot be cooled sufficiently; while some Excessive oil supply under working conditions leads to low cooling efficiency, increases heat generation of bearings and gears, and causes a series of problems

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