Fuel manifold spherical joint and tester quick connector
A fuel manifold and tester technology, applied in the direction of pipes/pipe joints/pipes, adjustable connections, passing elements, etc., can solve the problems of uneven force, troublesome operation, poor sealing performance of spherical surface and inner cone surface, etc. Uniform force, simplified operation, good sealing performance
Active Publication Date: 2015-04-29
AECC AVIATION POWER CO LTD
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The disadvantages of the above connecting device are: first, the positioning ring surface of the spherical joint 1 of the fuel main pipe is in line contact with the direct pin 3, the force is uneven, and the sealing performance between the spherical surface of the joint and the inner cone surface is poor
Second, when the thread is tightened during installation, the pin shaft is easy to fall off, and the operation is troublesome
Method used
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Embodiment Construction
[0013] The present invention will be described in further detail below. see Figure 5 to Figure 7 , aeroengine fuel manifold spherical joint and tester quick connector, including an adapter sleeve 6, see Figure 4 , the adapter sleeve 6 is a sleeve, the external thread 6c on the right end of the outer cylindrical surface of the adapter sleeve 6 cooperates with the internal thread of the spherical joint 4 connecting cap 4a of the tester, and the left port of the adapter sleeve 6 has an inner tapered surface 6e, The right port of the adapter sleeve 6 has an inner tapered surface 6d, and the left end of the outer cylindrical surface of the adapter sleeve 6 has an external thread 6a.
[0014] It is characterized in that: there is a ferrule 5, see Figure 5 , 6 , it is a component formed by two grooves on the basis of the outer hexagonal screw. The inner hole of the outer hexagonal screw sleeve before two times of grooving is a step hole, and the left part of the step hole with...
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The invention belongs to a testing technique for fuel manifolds of aero-engines, relates to an improvement of a fuel manifold spherical joint of an aero-engine and a tester connecting device, and particularly relates to a fuel manifold spherical joint and tester quick connector. The quick connector comprises a transferring sleeve (6) and is characterized in that a snapping sleeve (5) is arranged and is a member formed by twice grooving on the basis of an outer hexagonal threaded sleeve, a nut is arranged at the right section, and two lugs are arranged at the left section. According to the quick connector, a positioning ring surface of the fuel manifold spherical joint 1 and the two lugs of the left section of the connector are in surface contact, so that the stress is uniform, the sealing performance between the spherical surface of the joint and the inner tapered surface is good, two straight hinge pins are omitted, and the operation is simplified.
Description
technical field [0001] The invention belongs to the test technology of an aero-engine fuel main pipe, and relates to the improvement of a spherical joint of an aero-engine fuel main pipe and a connecting device of a tester. Background technique [0002] The structure of the spherical joint 1 of the fuel manifold of the aero-engine is as follows: figure 1 As shown, the other end of the spherical joint 1 is welded as a whole with the fuel main pipe. The connecting nut of the spherical joint 1 is connected with the spherical joint 1 through an annular collar, and the annular collar is located in the annular mounting hole in the connecting nut, and it is difficult to disassemble once installed. The spherical joint 1 of the fuel main pipe needs to conduct a flow test before installing the connecting nut. If the test fails, the fuel injection hole on the fuel main pipe needs to be repaired and then tested again. Generally, it needs to be repaired 4 to 5 times repeatedly. Only whe...
Claims
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IPC IPC(8): F16L27/073
Inventor 周晓卫杨能阁路江英闫文鲍延风韩新艳谢晓林赵芳辉
Owner AECC AVIATION POWER CO LTD