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该文通过的对供油泵出口机械密封改用通心密封短接后,密封效果良好:同时,圆柱滚子轴承在4.8MPa的压力下,用250号燃料油润滑,达到弹流润滑.“,”Mechanical sealing on fuel feed pump outlet is replaced by open - center sealing, in the paper. And then it has a good effect. When cylinder roller bearing is lubricated by 250 fuel oil at 4.8 MPa, elastic fluid lubrication is reached.