An oil vapor recovery device for internal combustion engine

The utility model discloses an oil and gas recovery device for an internal combustion engine, which comprises a high-pressure gas guide device, an oil and gas recovery device, an oil and gas recoverydevice, an oil and gas recovery device and an oil and gas recovery device, the oil suction pipeline comprises an oil and steam suction inlet and a pipeline body used for guiding sucked oil and steam to flow; the recovery pipe comprises a hollow pipe body; a first gas inlet in fluid communication with the high pressure gas outlet; the second oil and steam input port is communicated with fluid at the other end of the pipeline body of the oil suction pipeline and is formed in the side portion of the hollow pipe body, and the second oil and steam input port is provided with a vacuum suction nozzleextending into the hollow cavity; and a third exhaust port. According to the utility model, the fluid mechanics principle is utilized, vacuum generated by flowing of high-speed gas is utilized to absorb oil gas, residual oil