The utility model relates to
internal combustion engine accessory technical field, concretely relates to a kind of high-
pressure injection oil
pipe for track
internal combustion engine, including connecting
pipe, the outer side surface of both ends of connecting
pipe is all thread screw connection and is connected with inner taper nut and
bushing, inner taper nut one side surface is fixedly connected with connecting sleeve, connecting sleeve inner side surface is provided with internal thread, the both ends of connecting pipe are all provided with spherical connector, and the communication port for oil passage is set on spherical connector;Connecting pipe specifically adopts low-
alloy high-strength cold-drawn seamless steel pipe
processing, can be normal work in-60~+180 ℃ high-low temperature environment for a long time, can adapt to a variety of severe environment, with higher service life, simultaneously, the cost of connecting pipe can be greatly reduced, it is favorable to actual popularization, the both ends of connecting pipe adopt spherical connector, the outer surface of spherical connector is spherical surface, compared with traditional oil pipe end portion conical design, better sealing, can effectively prevent oil leakage phenomenon, improve the sealing reliability.