A two-way oil valve and its design method
A valve and oil-passing technology, which is applied in the direction of power plant, power plant fuel supply, weight reduction, etc., can solve the problems of weakening the overall performance of the aircraft, increasing the structural weight of the fuel tank, and increasing the complexity of the system, so as to improve the overall performance. , light weight, wide application prospects
Active Publication Date: 2020-09-22
BEIJING AEROSPACE TECH INST
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Problems solved by technology
[0003] To withstand the overload pressure, one is to increase the strength of the fuel tank, which will greatly increase the structural weight of the fuel tank, thereby weakening the overall performance of the aircraft; the other is to add solenoid valves, electric valves or The electric explosion stop valve will increase the complexity of the system and reduce the reliability of the system in terms of installation, power supply and control
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[0031] Specific embodiments of the present invention will be described in detail below. In the following description, for purposes of explanation and not limitation, specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details.
[0032] It should be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only the device structure and / or processing steps closely related to the solution according to the present invention are shown in the drawings, and the steps related to the present invention are omitted. Invent other details that don't really matter.
[0033] A two-way oil passage valve provided by the present invention has a left-right symmetrical structure, such as figure 1 As shown, it includes a housing 1 , a plug 2 , a sleeve 3 , a spring 4 ...
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The invention provides a two-way oil passage valve and a design method thereof. The two-way oil passage valve comprises a housing, a plug, a sleeve, a spring and a spring support. The sleeve is mounted in the housing, the plug is connected with the spring in the sleeve through the spring support, and the two-way oil passage valve is mounted on a pipeline between fuel tank sub-tanks through the housing. When a fuel tank of the aircraft supplies fuel, the fuel in the fuel tank enters from one end of the two-way oil passage valve and exit from the other end, and the plug can move along the sleevetoward an inlet or outlet direction, when the aircraft has a large positive or negative acceleration, the plug at the inlet or outlet end moves to a sealing position at the inlet or outlet of the housing, to seal the pipeline on the side, a liquid column is partitioned, the pressure generated by the fuel liquid column is divided into multiple parts, so that the design pressure of the fuel tank isreduced, the weight of the fuel tank is reduced, the overall performance of the aircraft is improved, the application range of the liquid fuel aircraft is expanded, and the two-way oil passage valvehas a wide application prospect.
Description
technical field [0001] The invention belongs to the technical field of aircraft fuel tank design, and in particular relates to a two-way fuel valve and a design method thereof. Background technique [0002] In the design of the pressure bearing capacity of aircraft fuel tanks using liquid fuel, it is necessary to comprehensively consider the fuel supply pressure and the overload pressure generated by the liquid fuel column. The fuel supply pressure refers to the capacity that the fuel tank must meet during the fuel supply process. The overload pressure refers to the pressure generated by the liquid column due to the acceleration of the aircraft. When the fuel tank of the aircraft is long and the acceleration is high, the overload pressure of the liquid column will be much greater than the fuel supply pressure. For example, the total length of the fuel tank is 4m, the fuel density is 0.78kg / L, and the fuel supply pressure is 0.1-0.15MPa. When the maximum acceleration is 10g,...
Claims
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IPC IPC(8): B64D37/00
CPCY02T50/40
Inventor 张聪赵桂杰张航左盼向安定邵文清
Owner BEIJING AEROSPACE TECH INST