Our GLL aluminum alloy oil pan uses high-strength aviation-grade aluminum alloy (such as 7075-T6 or 6061-T6), and its density is only one-third of that of traditional cast iron. Taking a mainstream passenger car as an example, after replacing the aluminum alloy oil pan, the vehicle weight is reduced by about 3.2 kg, which directly reduces the engine load.
GLL aluminum alloy thermal conductivity is 237W/(m·K), far exceeding the 80W/(m·K) of cast iron. Under high temperature conditions, the GLL oil pan can reduce the oil temperature, effectively delay the oxidation and deterioration of the oil, and extend the oil change cycle.
Through anodizing and special coating technology, a dense oxide film is formed on the surface of the GLL oil pan. The salt spray test shows that its corrosion resistance is improved, which is especially suitable for use in coastal or high humidity areas.
Our GLL draw lessons from the heat dissipation principle of shark gills and design wavy cooling fins on the side of the oil pan. The surface area is increased and combined with the bottom guide grooves, efficient exchange of hot and cold air is achieved.
In order to solve the problem of oil leakage in early aluminum alloy oil pans, GLL adopts a triple sealing solution:
Laser welding process: seamless connection between the shell and the flange, improved tensile strength;
Fluororubber sealing ring: extended temperature resistance range, reduced compression permanent deformation rate;
Structural adhesive reinforcement: modified silane adhesive is filled at key joints to withstand vibration.
GLL oil pan has reserved sensor interfaces and heating element installation positions, supports oil level/temperature monitoring and low-temperature start-up assistance functions, and reserves upgrade space for the era of smart driving.
Our GLL aluminum alloy oil pan has undergone numerous tests and strict control.
Impact resistance test
In the drop hammer impact test, the GLL aluminum alloy oil pan withstands energy, the cast iron parts crack, and the plastic parts are completely broken.
Thermal cycle reliability
After the cold and hot shock cycle from -40℃ to 150℃, the deformation of the GLL oil pan, the deformation of the cast iron parts, and the shrinkage of the plastic parts exceeded the standard.
NVH optimization
The finite element analysis shows that the natural frequency of the aluminum alloy oil pan avoids the engine resonance range, and the measured in-vehicle noise is reduced.
