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    • 81. 发明专利
    • High pressure liquid supply pump
    • 高压液体泵
    • JP2009114868A
    • 2009-05-28
    • JP2007285460
    • 2007-11-01
    • Hitachi Ltd株式会社日立製作所
    • ARITOMI TOSHIAKIMAEKAWA NORIYUKIMACHIMURA HIDENORINEMOTO MASAFUMI
    • F02M59/34F02M55/02F02M59/46
    • F02M63/0265F02M37/0029F02M37/0052F02M59/366F02M63/0036F02M63/005F02M63/0054F04B49/035G05D7/0133
    • PROBLEM TO BE SOLVED: To reduce pressure loss in a relief valve used for a high-pressure liquid supply pump.
      SOLUTION: The high-pressure liquid supply pump for pressurizing a liquid and supplying the pressurized liquid from a low-pressure side to a high-pressure side includes a relief path which releases the pressurized liquid from the high-pressure side to the low-pressure side, and a relief valve which is positioned in the relief path and equipped with an intermediate chamber, a valve seat positioned toward the high-pressure side of the intermediate chamber, a valve element that is attachable to and detachable from the valve seat, and a valve element retainer for pressing the valve element against the valve seat. The relief path is configured so that an inflow path to the intermediate chamber and an outflow path from the intermediate chamber both produce a restriction effect. The valve element retainer has a pressure reception surface for receiving the pressure from the intermediate chamber. A first pressure reception area, which detaches the valve element from the valve seat upon receipt of liquid pressure of the pressurized liquid from a high-pressure section when the relief valve closes, is smaller than a second pressure reception area, which lifts the valve element and the valve element retainer upon receipt of liquid pressure from the intermediate chamber.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:减少用于高压液体供应泵的安全阀中的压力损失。 解决方案:用于对液体加压并将加压液体从低压侧供给到高压侧的高压液体供给泵包括将加压液体从高压侧释放到 低压侧和安置阀,其位于释放路径中并具有中间室,朝向中间室的高压侧定位的阀座,可附接到阀可拆卸的阀元件 阀座和用于将阀元件压靠在阀座上的阀元件保持器。 排气路径构造成使得到中间室的流入路径和来自中间室的流出路径都产生限制效果。 阀元件保持器具有用于接收来自中间室的压力的压力接收表面。 第一压力接收区域,当安全阀关闭时接收到来自高压部分的加压液体的液体压力时,阀元件从阀座分离,小于第二压力接收区域,其将阀元件 以及在从中间室接收液体压力时的阀元件保持器。 版权所有(C)2009,JPO&INPIT
    • 83. 发明专利
    • Pump
    • PUMP
    • JP2008106620A
    • 2008-05-08
    • JP2006287520
    • 2006-10-23
    • Denso Corp株式会社デンソー
    • OTA MIKIO
    • F04B53/10F02M51/00F02M59/34F02M59/36F02M59/46
    • F02M63/0035F02M59/102F02M59/368F02M63/0017F02M63/0031F02M63/0036F02M63/004F02M63/0043F04B7/0076F04B49/243F04B53/102
    • PROBLEM TO BE SOLVED: To prevent a valve element of a solenoid valve from being closed itself by a dynamic pressure of a fluid in a pump for controlling a starting timing of pressurization of the fluid by a plunger by closing a low pressure passage communicating a plunger chamber with a low pressure part by the valve element. SOLUTION: A slant surface non-parallel to a plane perpendicular to an operation direction X of a valve element 35 is provided on a surface at a side to which the dynamic pressure of the fluid of the valve element 35 is applied. If doing so, when the dynamic pressure is applied to the valve element 35, component force is created in the direction perpendicular to the operation direction X of the valve element 35, and the force in the direction that the valve element 35 is closed itself is reduced, thereby the valve element 35 can be prevented from being closed itself by the dynamic pressure. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了防止电磁阀的阀元件自身由泵中的流体的动压闭合,以通过闭合低压通道来控制流体由柱塞加压的开始正时 通过阀元件将柱塞室与低压部件连通。 解决方案:在施加阀元件35的流体的动压的一侧的表面上设置有不平行于垂直于阀元件35的操作方向X的平面的倾斜表面。 如果这样做,当对阀元件35施加动压时,在垂直于阀元件35的操作方向X的方向上产生分力,而阀元件35自身关闭的方向的力是 从而可以防止阀元件35因动压而自身闭合。 版权所有(C)2008,JPO&INPIT
    • 89. 发明专利
    • Fuel injection valve
    • 燃油喷射阀
    • JP2005090422A
    • 2005-04-07
    • JP2003327215
    • 2003-09-19
    • Bosch Automotive Systems Corp株式会社ボッシュオートモーティブシステム
    • KUBO KENICHITAKAHASHI KINJIHOSHIKAWA EIJI
    • F02M47/00F02M47/02F02M51/06F02M59/46
    • F02M63/0036F02M47/027F02M63/0017F02M63/0022F02M63/0043F02M63/0071F02M63/0075F02M63/022
    • PROBLEM TO BE SOLVED: To keep lift amount of a valve element constant for a long time even if a component such as an armature plate is worn. SOLUTION: In this fuel injection valve 1 for controlling start and end of fuel injection by controlling a valve mechanism for turning on and off back pressure given to a nozzle needle 32 by an electromagnetic actuator 5, an armature bolt 51 of the electromagnetic actuator 5 is made of a material elongating in the axial direction by change with age. The material of the armature bolt 51 is a material having fixed remaining austenite, for example, a material on which heat treatment is applied and which conforms to SUJ2 or the like. By manufacturing the armature bolt 51 using this kind of raw material and managing tempering temperature after quenching, the armature bolt 51 is elongated in its axial direction by leaving it at normal temperature for a long time to compensate change of lift amount of a ball 52 due to wear of the component. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:即使诸如衔铁板的部件被磨损,也可以长时间保持阀元件的提升量恒定。 解决方案:在通过控制用于通过电磁致动器5打开和关闭给予喷嘴针32的背压的阀机构来控制燃料喷射开始和结束的燃料喷射阀1中,电磁铁的电枢螺栓51 致动器5由随着年龄的变化沿轴向延伸的材料制成。 电枢螺栓51的材料是具有固定的剩余奥氏体的材料,例如,施加热处理并符合SUJ2等的材料。 通过使用这种原料制造电枢螺栓51并且在淬火之后控制回火温度,电枢螺栓51通过在常温下长时间放置以补偿球52的提升量的变化而在其轴向上伸长 磨损组件。 版权所有(C)2005,JPO&NCIPI