Combined type fuel oil guide pipe connecting structure for aircraft

A connecting structure and combined technology, applied in the field of aviation flight test, can solve problems such as strip breakage, and achieve the effects of reduced damage, light weight and simple structure

Inactive Publication Date: 2016-06-01
CHINESE FLIGHT TEST ESTAB
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

The rigid connection does not allow the relative displacement and rotation of the connecting pipeline, and at the same time, the connecting part must have enough operating space; the flexible connection is mostly used on the fuel pipeline of domestic aircraft to connect the quick-release clamp with HB6521 conduit, because the conduit connected by the clamp is concentric The assembly stress is caused by the degree deviation and other reasons, causing the strip to break and so on.

Method used

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  • Combined type fuel oil guide pipe connecting structure for aircraft
  • Combined type fuel oil guide pipe connecting structure for aircraft

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Embodiment Construction

[0014] The connecting structure of the aircraft fuel conduit will be further described in detail below. see figure 1 The combined aircraft fuel conduit connection structure includes two pipe sleeves 1, two retaining rings 2, two nuts 3, one outer sleeve 4 and two sealing rings 5, and the outer sleeve 4 completes the connection of the two connecting conduits. Pairs. The installation steps are as follows:

[0015] Step 1. Weld the pipe sleeve 1 at one end of the two conduits to be connected respectively. The inspection standard after welding the pipe sleeve 1 is in accordance with the quality inspection standard of navigation mark HB5135 structural steel and stainless steel welding joint and the quality inspection standard of navigation mark HB5375 aluminum and aluminum alloy fusion welding. implement;

[0016] Step 2. Install the sealing ring 5 at the rectangular groove on the pipe sleeve 1 to facilitate the sealing of the fuel pipeline system; the surface roughness of the r...

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Abstract

The invention belongs to an aircraft flight test field technology and particularly relates to a combined type fuel oil guide pipe connecting structure for an aircraft. The connecting structure is installed on a fuel oil system pipeline of the aircraft, reliable in pipeline connecting performance and easy and convenient to install. The combined type fuel oil guide pipe connecting structure comprises two pipe sleeves 1, two retaining rings 2, two nuts 3, an outer sleeve 4 and two sealing rings 5. An aircraft pipeline system is an important part for conveying fluid for the aircraft, a guide pipe connecting structure piece is an important standard piece for aircraft pipeline connection, and the using performance, the service life and the reliability of a fuel oil system, a hydraulic system, an environment control system and other systems of the aircraft are directly affected by the performance of the pipeline system connecting structure. Therefore, the pipeline connecting structure plays a vital role in the performance and the safe reliability of the aircraft.

Description

technical field [0001] The invention belongs to the technical field of aviation flight test, and in particular relates to a connection structure design of an aircraft fuel conduit. The connection structure is installed on an aircraft fuel system pipeline, and is a product with reliable pipeline connection performance and easy installation. Background technique [0002] The aircraft pipeline system is an important part of the aircraft to transport fluid, the conduit connection structure is an important standard part of the aircraft pipeline connection, and the performance of the pipeline system connection structure directly affects the performance of aircraft fuel, hydraulic, environmental control and other systems , life and reliability. Therefore, the pipeline connection structure plays a vital role in the performance, safety and reliability of the aircraft. [0003] At present, the conduit connection of the aircraft fuel system generally adopts rigid connection and flexib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L19/03
Inventor 陈华范晓龙王进田玉艳
Owner CHINESE FLIGHT TEST ESTAB
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