Abstract of CN102116212 (A) Translate this text The invention provides an air-entraining direct injection engine cylinder head. A gas channel supplying low pressure air to the whole engine is horizontally arranged in the middle position of the cylinder head; a pressure regulating valve mounting hole and a fuel oil regulating valve mounting hole which are communicated with the gas channel are arranged; the low pressure air enters the upper part of a nozzle mounting hole through a gas through hole and then enters an air-entraining direct injection nozzle to be mixed with fuel oil through the gas channel; and afterwards, the low pressure air is injected into a combustion chamber to achieve air-entraining direct injection. According to the invention, the air channel needed by air-entraining direct injection and the nozzle mounting hole where the oil can be mixed with the air are reasonably arranged under the condition of a geometric structure of the prior cylinder head; and meanwhile, the arrangement of the nozzle and a spark plug facilitates the achievement of a CAI (controlled auto-ignition) combustion mode.
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