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    • 5. 发明专利
    • Sealing system and sealing method
    • 密封系统和密封方法
    • JP2012255478A
    • 2012-12-27
    • JP2011128289
    • 2011-06-08
    • Denso Corp株式会社デンソー
    • NIINUMA KENICHIOHASHI FUMIOINOUE TOMONORI
    • F16J15/08
    • B23P9/00C21D7/12F02M55/025F02M2200/8053
    • PROBLEM TO BE SOLVED: To provide a high pressure sealing system which enables repeated use of a seal material which is inserted inside of a workpiece.SOLUTION: The sealing system includes: a pumping means 11 for pumping a fluid to the inside of the workpiece 1; a seal material 12 which is inserted into an opening hole 1a of the workpiece 1 and which suppresses leakage of the fluid from the opening hole 1a; and detachment preventing means 13,14 for preventing the seal material 12 from detaching from the opening hole 1a. Here, the seal material 12 has a tubular part 12a which opens at an insertion front end side, and the tubular part 12a is formed so as to elastically deform in an expanding direction when the inside pressure of the workpiece 1 rises due to pumping of the fluid.
    • 要解决的问题:提供能够重复使用插入工件内部的密封材料的高压密封系统。 解决方案:密封系统包括:泵送装置11,用于将流体泵送到工件1的内部; 密封材料12,其插入到工件1的开孔1a中并且抑制流体从开孔1a泄漏; 以及用于防止密封材料12从开孔1a脱离的防脱装置13,14。 这里,密封材料12具有在插入前端侧开口的管状部12a,并且,当工件1的内部压力由于泵送而上升时,管状部12a形成为沿扩张方向弹性变形 流体。 版权所有(C)2013,JPO&INPIT
    • 6. 发明专利
    • Fuel supply pump
    • 燃油泵
    • JP2012132319A
    • 2012-07-12
    • JP2010282634
    • 2010-12-20
    • Denso Corp株式会社デンソー
    • YOSHIMURA TETSUYAMORI KATSUMINIINUMA KENICHI
    • F02M59/10F02M59/44
    • F04B53/162B23P9/00F04B1/0421Y10T29/49236
    • PROBLEM TO BE SOLVED: To provide a fuel supply pump capable of increasing the pressure resistance of a neighboring part of a rim 59 of a connecting port 56 of a fuel flow path 13 formed on a porous wall of a cylinder hole 2 while securing seizure resistance against the sliding contact of a plunger on the porous wall of the cylinder hole 2.SOLUTION: Pressure is applied by an auto frettage and residual compressive stress is applied to at least a range A including the rim 59 of the connecting port 56 of which the pressure resistance needs to be increased and the neighboring part out of the porous wall of the cylinder hole 2 and a flow path wall of the fuel flow path 13. By this, the pressure resistance of the neighboring part of the rim 59 of the fuel supply pump can be increased while securing the seizure resistance against the sliding contact of the plunger on the porous wall of the cylinder hole 2.
    • 要解决的问题:提供一种能够提高形成在气缸孔2的多孔壁上的燃料流路13的连接口56的边缘59的相邻部分的相邻部分的耐压性的燃料供给泵,同时 确保对柱塞在气缸孔2的多孔壁上的滑动接触的抗咬住性。解决方案:通过自动摩擦力施加压力,并且残余压缩应力施加至至少一个范围A,包括边缘59的 需要增加压力阻力的连接口56和气缸孔2的多孔壁的相邻部分和燃料流路13的流路壁。由此,相邻部分的耐压性 可以增加燃料供给泵的边缘59,同时确保针对柱塞在气缸孔2的多孔壁上的滑动接触的抗咬合性。版权所有:(C)2012,JPO&INPIT