Oil bottom case structure with enhanced oil return function

Abstract

The invention provides an oil bottom case structure with an enhanced oil return function. The oil bottom case structure comprises an oil bottom case body, wherein an oil collecting pool is arranged at each of the front and back ends of the oil bottom case body, a bottom plate of the oil bottom case body arranged between the two oil collecting pools is of an inclined structure with the higher middle and the lower two ends, and the two oil collecting pools are not symmetrical along the transverse center line of the oil bottom case body, and are respectively positioned at the two sides of the center line. The oil bottom case structure has the advantages and positive effects that the positions and the number of the oil collecting pools are regulated, in addition, the inclined structure of the oil bottom case (or a lower crank case) is added, the backflow gathering capability of engine oil can be obviously improved, meanwhile, the continuous oil return when the engine generates front back left and right inclination can be ensured, the oil collecting pools are respectively arranged in the center symmetry positions of the two sides of the front end and the back end of the oil bottom case, in addition, the inclined structure with the higher middle and the lower two ends is designed at the inner side of the bottom plane of the oil bottom case, and when the engine inclines in the front back left and right direction, the backflow gathering effect of the engine oil is not influenced.

Description

technical field [0001] The invention belongs to the technical field of diesel engine oil pan structure, and in particular relates to an oil pan structure with enhanced oil return function. Background technique [0002] In the prior art, the oil pan (or lower crankcase) of a high-power diesel engine usually has the function of collecting engine oil. Its structure is designed as a stamping part with a thin shell structure or a casting with a thin aluminum box structure. The oil of the lubricating mechanism is collected in the oil pan (or lower crankcase) due to gravity, and re-enters the lubricating system through the oil return line and the oil pump. The oil sump (or lower crankcase) of some models of diesel engines is also designed with an oil collection pool, which is generally located at the bottom of the middle of the box body. There are oil drain valves and oil return pipes arranged in it, and the collection and return capacity of the oil is limited. strengthen. [000...

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Problems solved by technology

[0003] However, with the above-mentioned structural design, when the engine tilts at a large angle from front to back, left, and right, the engine oil cannot return to the oil collection tank normally, which will affect the normal operation of the oil pump and the lubrication efficiency of the lubrication system.

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