Engine sump

Abstract

The invention provides an engine sump. The engine sump comprises a large end surface, a sump inner cavity, a rear end surface and a sump bottom, wherein an inner cavity rib is arranged in the sump inner cavity; a bottom rib is arranged at the sump bottom; a rear end surface rib is arranged at the sump rear end surface; the sump rear end surface is designed to be semicircular and matched with the shape of a transmission case end surface, and two bolt holes connecting the sump and a transmission are additionally arranged on the sump rear end surface so as to directly connect the sump with the transmission. The quality of the product is guaranteed, deformation is difficult, a car can not leak oil in use process, and the engine sump is not easy to crack and long in service life; and a protective board between an engine and the transmission is omitted, the assembling procedures can be decreased, and the cost is lowered; and the supplement of gear oil of the engine can be ensured and the sufficient lubrication can be maintained.

Description

Technical field: [0001] The invention relates to auto parts, in particular to an engine oil pan in the auto parts, which is a device for storing engine oil. Background technique: [0002] The general engine oil pan is located at the bottom of the engine. It is a large basin-shaped container with a hole below it, which is usually sealed by the oil drain bolt. The volume of the entire oil pan is about 3L. It is mainly used for replenishing engine gear oil and maintaining sufficient lubrication. The traditional oil pan is made of cast aluminum. With the rapid development of the car industry, especially the expansion of the domestic small car market and the urgent need for the reduction of enterprise costs, people began to require vehicles that are flexible, light, and low in manufacturing costs. In recent years, more and more car engine manufacturers use steel plates to punch oil pans, but the bottom surface of the produced oil pans has no reinforcement ribs, the flatness cann...

AI Technical Summary

Problems solved by technology

In recent years, more and more car engine manufacturers use steel plates to punch oil pans, but the bottom surface of the produced oil pans has no reinforcement ribs, the flatness cannot be guaranteed during the stamping process, the products are easily deformed, and the car leaks oil during use. The oil pan is easy to crack during the vibration process; and the steel plate stamped oil pan has a rough structure, which is made by simple forming, and the peripheral trimming and punching are installed on the lower cover of the engine gear cover with screws. After the car test, the vibration caused the screws to loosen during operation and oil leakage occurred. At the same time, the oil leaked out due to high pressure during driving. After a long time, it would cause serious problems such as lack of oil, dry gears, and lockup.

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