Oil transport and venting structure of auxiliary oil tank
A technology of auxiliary fuel tank and ventilation structure, applied in the direction of the fuel tank of the power plant, etc., to achieve good installation and fixation, ensure flight safety, and good structural coordination
Inactive Publication Date: 2013-08-14
HARBIN
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Problems solved by technology
[0003] Existing helicopters have not adopted the design scheme that the auxiliary fuel tank and the ventilation function are designed together. The ventilation of the auxiliary fuel tank and the main fuel tank are separated. The usual design is to install the auxiliary fuel tank in the cockpit, and the auxiliary fuel tank is only the main fuel tank. For oil delivery, the auxiliary fuel tank is connected to the ventilation line of the main fuel tank through a conduit to ventilate the auxiliary fuel tank; the ventilated fuel tank is usually ventilated to the main fuel tank, installed in the luggage compartment, and the main fuel tank is connected to the ventilated fuel tank through a conduit to realize the ventilation of the main fuel tank Function
Method used
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[0016] Below in conjunction with accompanying drawing the present invention is described in further detail, please refer to Figure 1 to Figure 6 .
[0017] Auxiliary fuel tank and ventilating structure In the auxiliary fuel tank and ventilating fuel tank, the aluminum alloy plate is welded and formed. The shape of the auxiliary fuel tank is square with rounding, and the shape of the ventilating fuel tank is barrel-shaped. The inner wall of the auxiliary fuel tank and the stamped reinforced partition are welded together by spot welding. The reinforced partition has reinforcement grooves and lightening holes, and there are grooves on the upper and bottom of the fuel tank for ventilation and oil flow. The connectivity inside the fuel tank is enhanced. The oil delivery and vent oil return joints of the fuel tank are welded to the auxiliary fuel tank by welding; the breather box is formed by welding the aluminum alloy plate, and the vent joint is welded to the breather tank by wel...
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The invention belongs to the field of aviation fuel oil system, and particularly relates to an oil transport and venting structure of an auxiliary oil tank. The oil transport and venting structure comprises an auxiliary oil tank (1) and a venting oil tank (2), the venting oil tank (2) is connected with a venting guide pipe (3) through a first venting joint (6) and is connected with a venting connecting hose (8) through a second venting joint (7), and the other end of the venting connecting hose (8) is connected with a venting oil return joint (11) connected with an oil return port of an engine. Being practically applied on a certain machine, the oil transport and venting structure of the auxiliary oil tank is good in arrangement, and is well coordinative with an existing structure of an airplane after being installed on the airplane additionally, mounting and fixing of the oil tank are good, no interference is caused, and oil transport and venting of the oil tank can be realized. When the airplane flies obliquely leftwards and rightwards, a vent is always arranged at the zenith, venting state of the oil tank is guaranteed good, and flight safety of the airplane is guaranteed.
Description
technical field [0001] The invention belongs to the field of aviation fuel systems, in particular to an auxiliary fuel tank fuel delivery and ventilation structure. Background technique [0002] In order to increase the voyage, a certain type of helicopter adopts the design scheme of adding auxiliary fuel tanks to increase the fuel storage capacity of the aircraft. The installation of auxiliary fuel tanks on existing aircraft involves the problems of fuel delivery from the auxiliary fuel tank to the main fuel tank and ventilation of the main fuel tank and the auxiliary fuel tank. At the beginning of the design of the aircraft, the design scheme of adding auxiliary fuel tanks was not considered, and no corresponding interface was reserved. [0003] Existing helicopters have not adopted the design scheme that the auxiliary fuel tank and the ventilation function are designed together. The ventilation of the auxiliary fuel tank and the main fuel tank are separated. The usual des...
Claims
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Inventor 安杨李磊
Owner HARBIN