Aviation fuel sampler and sampling method

A technology of aviation fuel and sampler, which is applied in the field of aircraft inspection, can solve the problems of easy generation of impurities, surface damage of airborne finished products, cost waste, etc., and achieve the effects of easy disassembly, improved reliability, and avoiding fuel waste

Active Publication Date: 2021-02-12
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) During the process of the top tooth rotating and rising with the fuel sedimentation pipe, it is constantly grinding with the on-board finished product (the one-way valve in the oil discharge port of the aircraft body). The surface of the valve) is damaged, and it is easy to generate additional impurities;
[0005] 2) During the rotation and rising process of the fuel settling pipe (that is, before it is completely installed in place), the fuel settling pipe is not completely sealed with the fuel drain port of the aircraft body, and the fuel is likely to flow to the outside of the fuel settling pipe along the thread, and along the outer wall of the fuel settling pipe. If the fuel flowing down along the outer wall of the fuel settling pipe flows into the sampling sample, the fuel may be stained with other impurities on the outer wall of the fuel settling pi...

Method used

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  • Aviation fuel sampler and sampling method
  • Aviation fuel sampler and sampling method
  • Aviation fuel sampler and sampling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment discloses a kind of aviation fuel sampler, as a kind of basic embodiment of the present invention, comprises oil guide unit 1 and sampling main body 2; Oil guide unit 1 comprises oil guide hose 1.1, one end of oil guide hose 1.1 A quick-release movable nut 1.2 is provided, the other end of the oil guide hose 1.1 is provided with an oil nozzle 1.3, and a throttle valve 1.4 is arranged on the oil outlet nozzle 1.3; the sampling body 2 includes a hollow cylindrical shell 2.1 with two ends open, a hollow It is the shell chamber 2.1.1 of the shell 2.1, and the shell cavity 2.1.1 is provided with a door-opening inner column 2.2; the shell 2.1 is provided with a rotation mechanism that controls the door-opening inner column 2.2 to move back and forth along the axial direction of the shell 2.1 through its own rotation. The adjustment mechanism 2.3, the rotation adjustment mechanism 2.3 cooperates with the door-opening inner column 2.2, and is used to push open th...

Embodiment 2

[0049] This embodiment discloses an aviation fuel sampler, as a preferred embodiment of the present invention, that is, in embodiment 1, the housing 2.1 is provided with an assembly hole 2.1.4 for installing the rotation adjustment mechanism 2.3, and the rotation adjustment mechanism 2.3 passes through the assembly hole 2.1.4, and is flexibly connected with the door-opening inner column 2.2; the assembly hole 2.1.4 is provided with a bushing 2.4, and the rotation adjustment mechanism 2.3 is flexibly connected with the casing 2.1 through the bushing 2.4; the casing 2.1 The ring body boss 2.1.6 is arranged in the circumferential direction, and the two sides of the ring body boss 2.1.6 are provided with a stressed concave surface 2.1.7; the assembly hole 2.1.4 is arranged on the ring body boss 2.1.6; the shell 2.1 The end connected to the oil discharge port of the aircraft body is provided with a sealing rubber ring I2.5 for elastic sealing with the oil discharge port of the aircr...

Embodiment 3

[0052] This embodiment discloses an aviation fuel sampler, as a preferred embodiment of the present invention, that is, in embodiment 2, the rotation adjustment mechanism 2.3 includes a handwheel disc 2.3.1 and a gear column 2.3.2, and the handwheel disc 2.3 .1 The bottom is provided with a smooth cylinder 2.3.3 for sealing fit with the bushing 2.4, the gear column 2.3.2 is fixedly connected with the hand wheel 2.3.1 through the smooth cylinder 2.3.3; In the space groove 2.2.1 for accommodating the gear column 2.3.2, at least one side wall of the space groove 2.2.1 is provided with a rack structure 2.2.2 for cooperating with the gear column 2.3.2; the bottom of the handwheel disc 2.3.1 A stop pin 2.3.4 is provided to prevent the rotation adjustment mechanism 2.3 from automatically rotating, and the housing 2.1 is provided with a latch groove 2.1.5 for cooperating with the stop pin 2.3.4; the shell cavity 2.1.1 is provided with a guide slide Slot 2.1.8, the side of the door-ope...

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Abstract

The invention relates to the technical field of aircraft detection, in particular to an aviation fuel oil sampler and a sampling method. The aviation fuel oil sampler comprises an oil guide unit and asampling main body, and the oil guide unit is detachably connected with the sampling main body; the sampling main body comprises a shell, and a door opening inner column is arranged in a shell cavityof the shell; and a rotary adjusting mechanism is arranged on the shell, is matched with the door opening inner column and is used for jacking the one-way valve in the airplane body oil drain port open. According to the technical scheme, the opening opportunity of the one-way valve can be freely controlled, namely, the one-way valve in the oil drain port of the aircraft body can be opened after the sampler is installed, it is guaranteed that fuel oil is controlled to flow into the sampler after the sampler and the oil drain port of the aircraft body are completely sealed, fuel oil leakage iseffectively prevented, fuel oil cost is saved, and fuel oil pollution damage is eradicated. In addition, the vehicle-mounted finished product is jacked open through linear ascending of the door opening inner column, and the vehicle-mounted finished product is effectively protected.

Description

technical field [0001] The invention relates to the technical field of aircraft detection, in particular to an aviation fuel sampler and a sampling method. Background technique [0002] In order to ensure the safety of the aircraft and passengers, during the assembly process of the aircraft in the aviation field, before the aircraft is put into use and before the aircraft takes off, the staff will strictly test the various functional parameters of the aircraft, including sampling and testing of aviation fuel. The degree of pollution and other factors to judge whether the oil supply system of the whole machine is intact and whether it can work normally. Impurities in aviation fuel will not only cause corrosion of the metal parts of the system, but also pollute the atmosphere, and are easily oxidized and condensed into colloids and sediments in the fuel, causing blockage of the combustion system, etc., which will affect the normal flight of the aircraft in the air. has a very...

Claims

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Application Information

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IPC IPC(8): G01N1/10
CPCG01N1/10
Inventor 李根贺素兰程鹤林唐海波何伟
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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