Aluminum alloy fuel tank integrating filtering and liquid level monitoring functions
The aluminum alloy fuel tank design with integrated oil-water separator and liquid level sensor solves the problems of oil-water separation equipment leakage and inaccurate liquid level detection, and achieves efficient layout and long service life of the fuel tank.
Patent Information
- Application Number
- CN202422985942.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Leakage in the oil-water separation equipment of traditional fuel tanks leads to high failure rates and increased maintenance costs, and liquid level detection is inaccurate when going uphill or downhill.
An aluminum alloy fuel tank with integrated filtering and liquid level monitoring functions is designed. An oil-water separator and a liquid level sensor are installed inside the tank and fixed with a flange. The oil-water separator is protected by an integrated filter element, and the liquid level sensor is fastened by rotating the slot to achieve real-time monitoring.
It simplifies the vehicle chassis layout, extends the service life of the oil-water separator, improves the accuracy of liquid level detection, and reduces maintenance costs.
Smart Images

Figure CN223330687U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a fuel tank, in particular to an aluminum alloy fuel tank with integrated filtering and liquid level monitoring functions. Background Art
[0002] In recent years, vehicle operating environments have become increasingly complex and diverse, placing increasing demands on vehicle space. Efficiently utilizing chassis space in the truck industry is crucial to meeting the market's personalized needs. Because traditional fuel filtration relies primarily on independent oil-water separation equipment, leaking water leads to higher failure rates and maintenance frequency during later use, increasing maintenance costs and negatively impacting the durability of the fuel system. Utility Model Content
[0003] The utility model provides an aluminum alloy fuel tank with integrated filtering and liquid level monitoring functions, thereby solving the problems of difficult vehicle chassis layout and short service life of the oil-water separator due to leakage, and also solves the problem of inaccurate oil level detection due to liquid level fluctuations on uphill and downhill roads.
[0004] The utility model is realized by the following technical solutions:
[0005] An aluminum alloy fuel tank with integrated filtering and liquid level monitoring functions includes a fuel tank shell 4, a fuel tank partition 3, a mounting flange 6, an oil-water separator 2 and a liquid level sensor 1. The fuel tank partition 3 is fixed in the fuel tank shell 4, and the oil-water separator 2 is fixed by riveting the mounting flange 6 on the upper surface of the fuel tank shell 4. The oil pump and cable harness port are reserved at the top of the oil-water separator 2. The main body of the oil-water separator 2 is located inside the fuel tank body. Oil-resistant plastic products are used as the outer protective layer of the filter element. The lower surface of the fuel tank is provided with threaded holes for connecting a rubber hose as a drainage pipe to cooperate with the oil-water separator. A liquid level sensor 1 is installed at the front and rear end of the fuel tank shell 4. The liquid level sensor and the fuel tank shell 4 are fastened by rotating in a slot. The liquid level sensor is connected to the cab instrument.
[0006] Beneficial effects of the utility model:
[0007] 1. The electronic oil pump and oil-water separator are fixed with flanges, which simplifies the layout of the entire vehicle;
[0008] 2. Placing the oil-water separator inside the fuel tank can extend the service life of the oil-water separator. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the structure of the utility model;
[0010] Figure 2 yes Figure 1 A top view of
[0011] Figure 3 yes Figure 1 Side view of
[0012] Figure 4 It is an exploded view of the parts of the utility model;
[0013] In the figure: 1-liquid level sensor, 2-oil-water separator, 3-fuel tank partition, 4-fuel tank housing, 5-fuel filling port, 6-mounting flange, 7-rubber hose. DETAILED DESCRIPTION
[0014] like Figure 1-4 As shown, the integrated fuel tank of the utility model includes an aluminum alloy fuel tank shell 4, a fuel tank partition 3, and an installation fixing flange 6. The fuel tank partition 3 is fixed to the inner wall of the fuel tank by a welding process, which plays the role of fixing the aluminum alloy shell and reducing the large surge of fuel in the fuel tank, which causes friction with the fuel tank shell and causes the problem of oil rising. The fuel tank shell is fixed on the heavy truck chassis, involving matching fixing glue and tightening belts, which correspond one to one with the positions of the partitions.
[0015] In addition, the oil-water separator 2 is fixed by a riveted mounting flange 6 on the upper surface of the fuel tank. The oil pump and cable harness ports are reserved at the top of the oil-water separator 2. The main body of the oil-water separator 2 is located inside the fuel tank body. Oil-resistant plastic products are used as the outer protective layer of the filter element. The oil-water separator 2 is in the fuel tank and has no direct contact with the outside world, which can extend its service life. Compared with traditional oil-water separators, its integration concept is of great significance to improving the space utilization of the entire vehicle.
[0016] A threaded hole is drilled on the lower surface of the oil tank to serve as a drainage pipe in conjunction with the oil-water separator to achieve the effect of oil-water separation. A rubber hose 7 can be used as a drainage pipe here to ensure timely drainage and shorten the maintenance cycle of the oil-water separator.
[0017] A liquid level sensor 1 is installed at the front end of the fuel tank. The liquid level sensor and the fuel tank are fastened by rotating in a slot, and another liquid level sensor is added inside the fuel tank near the rear end surface. The two liquid level sensors jointly detect the liquid level in the fuel tank and are connected to the cab instrument to realize real-time monitoring. The two liquid level sensors can realize liquid level correction to avoid the problem of inaccurate liquid level display in working conditions such as slopes. The utility model provides a solution to the inaccurate oil quantity detection due to liquid level fluctuations when going up or down slopes.
Claims
1. An aluminum alloy fuel tank with integrated filtering and liquid level monitoring functions, characterized by: It includes a fuel tank shell, a fuel tank partition, a mounting flange, an oil-water separator and a liquid level sensor. The fuel tank partition is fixed in the fuel tank shell. The oil-water separator is fixed by riveting the mounting flange on the upper surface of the fuel tank shell. The oil pump and cable harness port are reserved at the top of the oil-water separator. The oil-water separator body is located inside the fuel tank body. The lower surface of the fuel tank is provided with threaded holes to connect the rubber hose as a drainage pipe to cooperate with the oil-water separator. A liquid level sensor is installed at the front and rear end of the fuel tank shell. The liquid level sensor and the fuel tank shell are fastened by rotating the card slot. The liquid level sensor is connected to the cab instrument.
2. The aluminum alloy fuel tank with integrated filtering and liquid level monitoring functions according to claim 1, characterized in that: Oil-resistant plastic products are used as the outer protective layer of the oil-water separator filter element.