An engine oil circuit structure and an engine

Abstract

The invention relates to the technical field of engines, in particular to an engine oil way structure and an engine. The engine oil way structure comprises an engine body which is internally providedwith an oil supplying oil way and a crankshaft hole communicating with each other, and further comprises a piston cooling nozzle which communicates with the crankshaft hole and an air cylinder hole; and cooling oil sequentially flows into the oil supplying oil way, the crankshaft hole and the piston cooling nozzle to enter the air cylinder hole. According to the engine oil way structure and the engine, the piston cooling nozzle communicates with the crankshaft hole and the cylinder hole, and the piston cooling nozzle can take the cooling oil directly from the crankshaft hole; and compared withthe prior art that the oil supplying oil way is independently formed for the piston cooling nozzle, the piston cooling nozzle takes the cooling oil directly from the oil supplying oil way formed by acrankshaft and the crankshaft hole, additional special oil ways are omitted, the difficulty of independently forming the oil supplying oil way for the piston cooling nozzle can be lowered, structuralarrangement of the engine body is convenient, and meanwhile the lightweight design for the engine body is also achieved.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an engine oil circuit structure and an engine. Background technique [0002] With the continuous advancement of gasoline engine technology, increasing the compression ratio of gasoline engines has become one of the common application methods. After increasing the compression ratio of the engine, the heat load of the punching machine will increase, and it is easy to cause knocking. In order to reduce the For heat load, it is necessary to add piston cooling nozzles on the cylinder block, and use engine oil for cooling. [0003] Piston cooling nozzles usually need to take oil from specially arranged oil passages, such as a kind of engine block lubricating oil circuit system disclosed in Chinese patent document CN204511556U, in which the piston cooling nozzles are directly connected with the main oil passage, and the piston cooling nozzles Oil is taken from the main oil gallery for ...

AI Technical Summary

Problems solved by technology

Although this arrangement can intuitively and effectively provide cooling oil for the piston, the design of the engine body is not conducive to the arrangement of the oil passage and the lightweight design of the engine body

At the same time, the existing nozzles are positioned with two pins on one side. When there is a deviation in the positioning, it will directly cause the problem of poor targeting efficiency of the nozzle's oil inlet.

[0004] Therefore, it is necessary to propose an engine oil passage structure, which can solve the problem in the prior art that a special oil passage needs to be designed for the piston cooling nozzle to take oil.

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