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A turbine engine hot end combustion lubricating oil pipeline structure

A turbine engine and lubricating oil technology, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of not reducing lubricating oil coking, bearing cooling effect, improving engine thermal efficiency, and reducing lubricating oil temperature, etc. Achieve good atomization combustion effect, reduce the probability of coking, and improve the effect of cooling effect

Active Publication Date: 2022-02-22
SICHUAN AEROSPACE ZHONGTIAN POWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the above problems, the present invention provides a lubricating oil pipeline structure at the hot end of a turbine engine, which is used to solve the problem that the fuel cannot be preheated in the prior art, so that the thermal efficiency of the engine cannot be improved; the temperature of the lubricating oil cannot be reduced, so that the Coking of lubricating oil, and the problem of not having a better cooling effect on the bearing

Method used

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  • A turbine engine hot end combustion lubricating oil pipeline structure
  • A turbine engine hot end combustion lubricating oil pipeline structure
  • A turbine engine hot end combustion lubricating oil pipeline structure

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Embodiment 1

[0031]Such as Figure 1-5 As shown, a turbine engine hot end combustion oil pipeline structure includes a bearing 6, a bearing seat 2 is installed on the bearing 6, a lubricating oil return chamber housing 1 is installed on the bearing housing 2, and the lubricating oil return chamber housing 1 is wrapped with a fuel preheating chamber casing 5, and a fuel preheating chamber 51 is formed between the fuel preheating chamber casing 5 and the lubricating oil return chamber casing 1; it also includes nesting from the outside to the inside and leaving a gap between them One end of the fuel inlet pipe 7 communicates with the fuel preheating chamber 51, the fuel preheating chamber 51 communicates with the oil supply pipe 17, and the lubricating oil return pipe 8 One end communicates with the inside of the lubricating oil return chamber housing 1 , and one end of the lubricating oil inlet pipe 9 is located inside the lubricating oil return chamber housing 1 and opposite to the upper p...

Embodiment 2

[0035] Such as Figure 1-5 As shown, on the basis of the above embodiments, this embodiment provides a preferred mechanism for connecting the fuel oil inlet pipe, the lubricating oil return pipe and the other end of the lubricating oil inlet pipe. That is, the other ends of the fuel inlet pipe 7, the lubricating oil return pipe 8 and the lubricating oil inlet pipe 9 are connected to the same pipe adapter 10, and the pipe adapter 10 is sequentially installed with a fuel oil inlet joint 13 and a lubricating oil outlet joint 12 , oil inlet joint 11, fuel oil inlet joint 13, oil outlet joint 12, oil inlet joint 11 are communicated with fuel oil inlet pipe 7, oil return pipe 8 and oil inlet pipe 9 successively.

[0036] Preferably, the middle part of the pipeline adapter 10 is sequentially provided with a fuel pipe connection hole 107, a lubricating oil return pipe connection hole 108 and a lubricating oil inlet pipe connection hole 109 from top to bottom, the fuel oil inlet pipe 7...

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Abstract

The invention relates to the technical field of turbine engines, in particular to a fuel oil pipeline structure at the hot end of a turbine engine, which is used to solve the problems in the prior art that the engine thermal efficiency cannot be improved and the bearing cannot be cooled better. The invention includes a lubricating oil return cavity shell, a fuel oil preheating cavity shell and a fuel oil preheating cavity, and also includes a fuel oil inlet pipe, a lubricating oil return pipe and a lubricating oil inlet pipe which are nested in sequence from the outside to the inside and leave a gap with each other. Oil pipe, one end of the fuel oil inlet pipe is communicated with the fuel preheating chamber and the fuel supply pipe in turn, one end of the lubricating oil return pipe is communicated with the interior of the lubricating oil return chamber shell, and one end of the lubricating oil inlet pipe is located at The lubricating oil returns to the inside of the oil chamber housing and is opposite to the upper part of the bearing. In the present invention, the fuel oil inlet pipe, the lubricating oil return pipe and the lubricating oil inlet pipe are nested in sequence from the outside to the inside, and the temperature of the fluid in the three pipes decreases sequentially from the outside to the inside, so the cooling effect on the bearing can be improved and the thermal efficiency of the engine can be improved.

Description

technical field [0001] The invention relates to the technical field of turbine engines, and more particularly relates to a structure of a hot end combustion lubricating oil pipeline of a turbine engine. Background technique [0002] The bearings at the turbine end of the engine need to be cooled and lubricated by spraying lubricating oil. After the lubricating oil enters the bearing, it must pass through the high-temperature area of ​​the engine. On the one hand, when the lubricating oil flows through this area, it will exchange heat with the environment to increase the temperature of the lubricating oil sprayed on the bearing, thereby reducing the lubricating oil. The temperature difference between the oil and the bearing makes the cooling effect worse and the working temperature of the bearing rises. On the other hand, the temperature of the lubricating oil close to the wall of the oil supply pipeline is high, which is prone to coking of the lubricating oil, and the cokin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D25/18F01D25/16F01D25/12F01D25/10
CPCF01D25/18F01D25/16F01D25/125F01D25/12F01D25/10
Inventor 熊杰刘驰欧阳兴宏宋勇刘焱敖
Owner SICHUAN AEROSPACE ZHONGTIAN POWER EQUIP CO LTD
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