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Fluid Circuits in Turbine Engines

A turbine engine and circuit technology, applied in the direction of engine lubrication, engine cooling, engine components, etc., can solve the problem that it is impossible to increase the cross section of bypass pipe 16

Active Publication Date: 2022-06-28
SAFRAN AIRCRAFT ENGINES SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for reasons of space requirements, it is not possible to increase the passage section of the bypass pipe 16

Method used

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  • Fluid Circuits in Turbine Engines
  • Fluid Circuits in Turbine Engines
  • Fluid Circuits in Turbine Engines

Examples

Experimental program
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Embodiment Construction

[0030] refer to figure 2 , which represents an oil circuit 24 according to the invention. In this specification, the term "exchanger" refers to a device capable of exchanging heat between two entities. Typically, a structural housing surrounds the heat exchange device such that without the structural housing effectively participating in the heat exchange, the assembly may be referred to as a heat exchanger. Therefore, it is obvious that the present invention also covers such products.

[0031] like figure 2 As shown, the oil circuit 24 includes and figure 1 The bypass pipe 16 is the same as the main bypass pipe 26 and the secondary bypass pipe 28 connecting the upstream end of the main bypass pipe 26 to the downstream end of the main bypass pipe 26 . More specifically, the upstream end of the main bypass pipe 26 and the upstream end of the secondary bypass pipe 28 are connected to each other at the inlet of the feed pipe 30 of the heat exchanger 31 , or more specifically...

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Abstract

The invention relates to an assembly for a turbine engine comprising an oil circuit (24) comprising an air / oil heat exchanger (31), a main bypass (26) and a secondary A bypass pipe (28), a main bypass pipe (26) connects the inlet of the air / oil heat exchanger (31) to the outlet of the air / oil heat exchanger (31) and surrounds the air / oil heat exchanger (31) to exchange heat with said air / oil heat exchanger, and a secondary bypass pipe (28) connects the upstream end of said primary bypass pipe (26) to said primary bypass pipe (26 ) downstream end, said circuit (24) also includes at least one valve (22) for controlling the passage of oil flow into said primary bypass pipe (26) and secondary bypass pipe (28) and A control device (35) for controlling the opening of said at least one valve (22) below a threshold temperature.

Description

technical field [0001] The present invention relates to an oil circuit and a turbine engine equipped with such an oil circuit. Background technique [0002] Like all internal combustion engines, turbine engines, whether turbojets or turboprops, include moving parts that rub against other moving parts or that rub against stationary parts. [0003] In order not to break due to heating caused by friction, these parts are sprayed with oil, which can limit (or inhibit) the heating of the parts and, on the other hand, can lubricate them to facilitate the sliding of these parts on another part. [0004] Oil flows in a circuit 10 provided with heat exchangers, in particular oil / gas exchangers 12, such as figure 1 As shown, the circuit 10 has a matrix 14 in the form of a curved tube for heat exchange, into which the oil from the component is introduced and then cooled before being sprayed again onto the component. [0005] When the turbine engine is started in cold conditions (eg, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D25/18F28F27/02F01M5/00
CPCF01M5/002F01M5/007F02C7/14F01M2005/004F05D2220/32F05D2260/213F05D2260/232F02C7/06
Inventor 尼古拉斯·艾伦·伯纳德·波泰尔兰斯洛特·吉尤
Owner SAFRAN AIRCRAFT ENGINES SAS