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A self-locking multifunctional gravity refueling port assembly device for small aircraft

A technology of gravity refueling port and small aircraft, which is applied to the fuel tank of the power unit, etc., which can solve the problems of the complex structure of the cap device, the inability to integrate the refueling sign and the gravity refueling port cover, etc., and achieve simple and exquisite structure, good lap joint, The effect of improving safety

Active Publication Date: 2017-02-01
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a small aircraft with self-locking multi-functional gravity fuel filler assembly device, to solve the current flap device, one-way ventilation function, refueling signs and gravity fuel filler cap can not be integrated together resulting in the flap The problem of complex structure of the device

Method used

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  • A self-locking multifunctional gravity refueling port assembly device for small aircraft
  • A self-locking multifunctional gravity refueling port assembly device for small aircraft
  • A self-locking multifunctional gravity refueling port assembly device for small aircraft

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Embodiment Construction

[0027] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated.

[0028] like Figure 1 to Figure 5 As shown, a self-locking multifunctional gravity refueling port assembly device for a small aircraft provided by the present invention includes a gravity refueling port seat 8, a port cover 2, a wear-resistant gasket 3, a sealing gasket 9, a ventilation assembly 7, and fastening bolts 1 and refueling signs 5, etc.

[0029] Gravity filler seat 8 is a hollow disc structure (circular shape), and the disc is arranged with satellite fastening holes along the circumference, and the inner and outer sides of the disc are all turned down. There is a circular first mounting hole and a rectangular second mounting hole at the center of the gravi...

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Abstract

The invention relates to the field of airplane fuel oil system designing, specifically to a self-locking multifunctional gravity refill opening assembly for a mini airplane to solve the problem that a unidirectional ventilation function, oiling direction board and gravity refill opening cover can not be integrated in a conventional opening cap device and the structure of the opening cover device is complex. A sealing gasket and a wear-resistant pad are laminated with each other to ensure wear resistant performance, and a self-locking device and a gravity refill opening seat are better connected. An opening cover, a multifunctional fastening bolt, a ventilation assembly and a rubber valve are jointly form a unidirectional vent to prevent fuel oil or air in a fuel tank from flowing out of the vent. When the negative pressure of the fuel tank is great, ventilation of the fuel tank can be completed timely. The self-locking multifunctional gravity refill opening assembly is simple and delicate in structure, convenient for dismounting, and reliable in installation and sealing, the design weight is effectively reduced, and the safety of a fuel oil system is improved.

Description

technical field [0001] The invention relates to the field of aircraft fuel system design, in particular to a self-locking multi-functional gravity refueling port assembly device for a small aircraft. Background technique [0002] When designing the gravity fuel filler cap of the traditional small aircraft fuel system, the one-way ventilation function, the refueling sign and the gravity fuel filler cap assembly are not integrated into one design, and the conventional rubber gasket seal cannot be worn for a long time. When these factors are used in the design of conventional fuel systems, the weight cost is relatively large, and the sealing is not good, which affects system performance and flight safety. Contents of the invention [0003] The purpose of the present invention is to provide a small aircraft with self-locking multi-functional gravity fuel filler assembly device, to solve the current flap device, one-way ventilation function, refueling signs and gravity fuel fil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64D37/06
Inventor 李小刚熊桂碧王宇
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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