Off-board fuel booster pump storage box

Abstract

The utility model belongs to the field of helicopter fuel systems, and relates to an off-board fuel booster pump storage box. The storage box comprises a storage box shell, an upper cover and a blanking cover; the upper end face of the storage box shell is open, the upper end is connected with the upper cover, and n mounting hole positions are formed in the upper cover; n is a positive integer; the storage box shell is used for containing aviation fuel; the mounting hole site is used for mounting the fuel booster pump, so that the position, with a rubber sealing piece, of the fuel booster pump is soaked in aviation fuel; and the blanking cap is used for plugging the mounting hole without the fuel booster pump.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of helicopter fuel system, and relates to a storage box for off-machine fuel booster pump. BACKGROUND

[0002] During the process of the fixed inspection and maintenance, each type of helicopter will disassemble the fuel booster pump and implement relevant inspection. In the past maintenance work, the fuel booster pump is stored in the off-machine spare cabinet after disassembly. When the subsequent installation and fuel system air tightness test are carried out, the system cannot be normally pressure-kept, further inspection finds that there is air leakage in the fuel booster pump, and after analysis, it is judged that the air leakage is caused by the shrinkage and dry cracking of the rubber sealing element in the pump after leaving the fuel environment. Since the rubber sealing element is inside the finished product, it can only be replaced in the factory, so the progress delay and additional maintenance cost increase are caused. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at preventing the aging and leakage of the rubber sealing element in the pump caused by improper storage, and needs to specially design a storage box for off-machine fuel booster pump to store the off-machine pump body.

[0004] TECHNICAL SCHEME

[0005] The utility model provides a storage box for off-machine fuel booster pump, which comprises a storage box shell, an upper cover and a plug cover.

[0006] The upper end of the storage box shell is open, the upper end is connected with the upper cover, the upper cover is provided with n mounting hole positions; n is a positive integer; the storage box shell is used for containing aviation fuel; the mounting hole position is used for mounting the fuel booster pump, so that the position of the rubber sealing element of the fuel booster pump is soaked in the aviation fuel; and the plug cover is used for plugging the mounting hole position without the fuel booster pump.

[0007] The storage box shell needs to be grounded.

[0008] The upper end and the upper cover, the fuel booster pump and the upper cover and the plug cover and the upper cover are connected by bolts.

[0009] The upper end and the upper cover, the fuel booster pump and the upper cover and the plug cover and the upper cover are sealed by oil-resistant rubber sealing rings.

[0010] The fuel booster pump is temporarily stored in the storage box for off-machine fuel booster pump after being disassembled from the machine.

[0011] N=6.

[0012] Beneficial effects:

[0013] The storage environment of the off-machine fuel booster pump is similar to the working environment, so that the shrinkage and dry cracking of the rubber sealing element in the pump after leaving the fuel environment are effectively avoided, and the failure of the sealing failure during the off-machine storage is further avoided. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Structure diagram of upper cover.

[0015] Figure 2 Structure diagram of plug cover.

[0016] Figure 3 Structure diagram of off-machine fuel booster pump storage box. DETAILED DESCRIPTION

[0017] The utility model discloses design and make a kind of off-machine fuel booster pump storage box, according to the storage interval of frame in permission, unified placement, can effectively save in aviation kerosene environment in the time of fuel booster pump off-machine, effectively avoid the failure of fuel booster pump internal rubber seal aging air leakage caused by improper storage. Booster pump upper cover as shown in Figure 1 , plug cover as shown in Figure 2 , structure diagram as shown in Figure 3 , it specifically includes: storage box casing 1, upper cover 2, plug cover 3;

[0018] Storage box casing 1 upper end face opening, upper end is connected with upper cover, and six mounting hole positions are provided on the upper cover;Storage box casing 1 is used to contain aviation fuel;Mounting hole position is used to install fuel booster pump 4, so that the position of fuel booster pump with rubber seal is soaked in aviation fuel;Plug cover is used to block mounting hole position without installing fuel booster pump.

[0019] Storage box casing 1 needs to be grounded.

[0020] Upper end is connected with upper cover, fuel booster pump is connected with upper cover, and plug cover is connected with upper cover using bolt.

[0021] Upper end is connected with upper cover, fuel booster pump is connected with upper cover, and plug cover is connected with upper cover using oil-resistant rubber seal ring 5 to realize sealing.

[0022] Fuel booster pump is temporarily stored in off-machine fuel booster pump storage box after being removed from machine.

Claims

1. A storage case for off-board fuel boost pump, characterized by, The utility model relates to a kind of aviation fuel storage box, including: Storage box shell (1), upper cover (2), plug cover (3); The upper end of storage box shell (1) is opened, and the upper end is connected with upper cover, and n mounting hole positions are set on the upper cover;N is positive integer;Storage box shell (1) is used to hold aviation fuel;Mounting hole position is used to install fuel booster pump, so that the position of fuel booster pump with rubber sealing element is soaked in aviation fuel;Plug cover is used to block mounting hole position without installing fuel booster pump.

2. The storage case of claim 1, wherein Storage box shell (1) needs to be grounded.

3. The storage case of claim 1, wherein, Upper end and upper cover, fuel booster pump and upper cover, plug cover and upper cover are connected using bolts.

4. The storage case of claim 3, wherein, Upper end and upper cover, fuel booster pump and upper cover, plug cover and upper cover adopt oil-resistant rubber sealing ring to realize sealing.

5. The storage case of claim 1, wherein, Fuel booster pump is temporarily stored in fuel booster pump storage box away from aircraft after being removed from aircraft.

6. The storage case of claim 1, wherein, n＝6。

Images