Lubricating oil nozzle device and aero-engine

Abstract

The invention provides a lubricating oil nozzle device and an aero-engine. The lubricating oil nozzle device comprises: a nozzle base, which is provided with an axially penetrating oil inlet hole; a nozzle flow and position regulator, which is provided with an axially penetrating stepped hole; It is connected with one end of the stepped hole and the oil inlet hole is communicated with the stepped hole; the sealing gasket is arranged in the stepped hole, the sealing gasket is provided with an adjustment through hole, and the axis of the adjustment through hole is parallel to the axis of the stepped hole; the nozzle head is connected with the stepped hole The other end of the nozzle head is threadedly connected and abutted with the gasket, the nozzle head is provided with an axial connection hole and a nozzle hole, the nozzle hole and the axial connection hole are connected obliquely, the axial connection hole is connected with the adjustment through hole, and when the nozzle head rotates , adjust the flow area of ​​the through hole and the axial connection hole to change. The beneficial effects of the invention are: the device is suitable for quickly and accurately controlling the injection flow and injection position of the lubricating oil required for the lubrication and cooling of the aero-engine bearing, thereby improving the productivity and reducing the production cost of the product.

Description

technical field [0001] The invention relates to the technical field of aero-engines, in particular to a lubricating oil nozzle device and an aero-engine. Background technique [0002] Aviation gas turbine engine bearings work in harsh environments and need to be lubricated and cooled. In order to achieve efficient lubrication and cooling while using as little lubricating oil as possible, precise control of lubricating oil flow and injection position is required. [0003] Today, nozzles and adjustment pads are often used to achieve precise control of oil injection flow and location. In order to meet the oil supply flow requirements for lubrication and cooling, the nozzle aperture is theoretically calculated. Generally, the nozzle aperture size will be smaller in diameter than the theoretical calculation aperture size during processing. The reason is that the nozzle shape, nozzle size, processing error, Influenced by various factors such as the surface quality of the inner ho...

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Problems solved by technology

[0005] 1) Due to the influence of many factors, the theoretically calculated flow rate of the lubricating oil nozzle is usually inconsistent with the actual target flow rate, and repeated corrections to the nozzle aperture size are required, resulting in a long trial production cycle, and even reprocessing nozzles that cannot be corrected, resulting in high trial production costs ;

[0006] 2) In order to meet the requirements for precise control of the nozzle spray position, a set of adjustment pads needs to be processed to adjust the oil supply position. The repeated disassembly and assembly of the adjustment pads will lead to a long trial production cycle, and it is easy to install the wrong adjustment pads during maintenance. Oil supply location changed

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