Engine oil filtering structure for lubricating oil passage of engine and filter element used by engine oil filtering structure

一种发动机润滑油道的机油过滤结构以及所使用的滤芯

Abstract

The utility model discloses a filter element for a lubricating oil passage of an engine. The filter element comprises a skeleton and a filter screen supported by the skeleton and braided by stainless steel wires, wherein a filter chamber is formed in the filter screen; an oil inlet is formed in the end, which is the head, of the skeleton, and is communicated with one end of the filter chamber; the position, close to the tail, of the skeleton forms a blind hole structure, and seals the other end of the filter chamber; an oil outlet is formed in the tail of the skeleton; the head and the tail of the skeleton have the same external diameter, and are in interference fit with a filter element mounting hole in the engine to fix the filter element; the part between the head and the tail of the skeleton has a small external diameter, and a gap is reserved between the part and the lubricating oil passage to form a lubricating oil circulation passage for the circulation of filtered cleaning lubricating oil. According to the filter element with the structure, the filtered lubricating oil can flow into different secondary oil passages through the gap between the engine oil filter element and the mounting hole, so that a function of lubricating a plurality of friction pairs by once filtration is realized; the filter element is simple in structure and convenient to disassemble and clean, and can be simply and rapidly assembled.
本实用新型提出一种发动机润滑油道滤芯,包括骨架和以骨架为支撑的不锈钢钢丝编制的滤网,在滤网内形成过滤腔;骨架的一端有设进油口,连通过滤腔一端,作为头部;骨架在靠近尾部位置形成盲孔结构,封闭过滤腔另一端;骨架的尾部设有出油口;骨架头部和尾部的外径大,与发动机上的滤芯安装孔的过盈配合,固定滤芯;骨架头部和尾部之间的部分外径小,与润滑油道之间留有间隙,形成的润滑油流通通道,用于流通过滤后的清洁润滑油。采用这种结构的滤芯,可以使过滤后的润滑油通过机油滤芯与安装孔之间的间隙流到不同的二级油道,实现一次过滤后润滑多个摩擦副的功能。滤芯结构简单,装配简单快捷,并便于拆卸进行清洗。

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