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公开(公告)号：US20090116976A1
公开(公告)日：2009-05-07
申请号：US12261439
申请日：2008-10-30
IPC分类号： F04B49/22
CPC分类号： F02M63/0265 , F02M37/0029 , F02M37/0052 , F02M59/366 , F02M63/0036 , F02M63/005 , F02M63/0054 , F04B49/035 , G05D7/0133
摘要： An object of the present invention is to reduce the pressure loss in a relief valve employed for a high-pressure liquid supply pump. Disclosed is a high-pressure liquid supply pump for pressurizing a liquid and supplying the pressurized liquid from a low-pressure side to a high-pressure side. The pump 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 ball valve that is attachable to and detachable from the valve seat, and a ball valve retainer for pressing the ball valve 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 ball valve retainer has a pressure reception surface for receiving the pressure from the intermediate chamber. A first pressure reception area, which detaches the ball valve 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 ball valve and the ball valve retainer upon receipt of liquid pressure from the intermediate chamber.
摘要翻译： 本发明的目的是降低用于高压液体供给泵的安全阀中的压力损失。 公开了一种用于对液体加压并将加压液体从低压侧供给至高压侧的高压液体供给泵。 泵包括将加压液体从高压侧释放到低压侧的释放路径，以及安置阀，其位于释放路径中并配备有中间室，朝向高压侧定位的阀座， 中间室的压力侧，可附接到阀座和可从阀座拆卸的球阀，以及用于将球阀压靠在阀座上的球阀保持器。 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。 球阀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，将球阀从阀座分离，小于第二压力接收区域，该压力接收区域提升球阀 以及当从中间室接收液体压力时球阀保持器。
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公开(公告)号：US07472839B2
公开(公告)日：2009-01-06
申请号：US11543190
申请日：2006-10-05
CPC分类号： F02M51/0682 , F02M61/042 , F02M61/12 , F02M61/1853
摘要： A heating time period is decreased by that a valve body including a hollow valve shaft is arranged in a slidable manner in a cylindrical part of a casing on which a nozzle body with a valve seat is mounted at a front end thereof, a fuel is introduced from a fuel outlet port opening on a shaft wall of the valve shaft into a fuel path formed by the valve shaft and the cylindrical part, the fuel is heated to be injected from the nozzle body by a heater arranged at an outside of the fuel path of the cylindrical part, and a sleeve is mounted in the fuel path so that a large diameter part thereof closes the fuel path at an upper area of the fuel outlet port, while a fuel inlet port is formed on a small diameter part of the sleeve to introduce the fuel into the fuel path, so that the fuel path is narrowed to decrease an amount of the fuel to be heated by the heater.
摘要翻译： 通过使包括中空阀轴的阀体在其前端安装有具有阀座的喷嘴体的壳体的圆筒部中被布置，加热时间缩短，引入燃料 从在阀轴的轴壁上开口的燃料出口到由阀轴和圆柱形部分形成的燃料通路中，燃料被加热，该燃料通过布置在燃料路径外侧的加热器从喷嘴体喷射 并且套筒安装在燃料路径中，使得其大直径部分在燃料出口的上部区域处封闭燃料路径，同时燃料入口形成在套筒的小直径部分上 以将燃料引入燃料路径，使得燃料路径变窄以减少加热器将被加热的燃料的量。
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43.发明申请公开(公告)号：US20080116301A1
公开(公告)日：2008-05-22
申请号：US11907716
申请日：2007-10-16
申请人： Yoshihito Yasukawa , Eiji Ishii , Noriyuki Maekawa , Motoyuki Abe , Hiroshi Yamada , Nobuaki Kobayashi , Takahiro Saito
发明人： Yoshihito Yasukawa , Eiji Ishii , Noriyuki Maekawa , Motoyuki Abe , Hiroshi Yamada , Nobuaki Kobayashi , Takahiro Saito
CPC分类号： F02M61/18 , F02M61/1853 , F02M61/1873 , F02M61/188 , F02M61/1886 , Y10S239/90
摘要： A fuel injection valve comprises a valve seat, a movable valve element which is seated on or separated from the valve seat, and a nozzle member having a plurality of nozzle holes. At least one of the valve element and valve seat has a curved surface at a contact position where they contact with each other when the valve element is seated on the valve seat. Two or more of the nozzle holes are provided outside an intersection line of a virtual extension surface along a tangential line to the curved surface at the contact position and a surface of the nozzle member.
摘要翻译： 燃料喷射阀包括阀座，位于阀座上或与阀座分离的可动阀元件和具有多个喷嘴孔的喷嘴构件。 阀元件和阀座中的至少一个在阀元件就座在阀座上时在接触位置具有彼此接触的弯曲表面。 两个或多个喷嘴孔设置在虚拟延伸表面的沿着切线的交叉线的外侧，在接触位置处的曲面和喷嘴构件的表面。
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公开(公告)号：US20070080239A1
公开(公告)日：2007-04-12
申请号：US11543190
申请日：2006-10-05
CPC分类号： F02M51/0682 , F02M61/042 , F02M61/12 , F02M61/1853
摘要： A heating time period is decreased by that a valve body including a hollow valve shaft is arranged in a slidable manner in a cylindrical part of a casing on which a nozzle body with a valve seat is mounted at a front end thereof, a fuel is introduced from a fuel outlet port opening on a shaft wall of the valve shaft into a fuel path formed by the valve shaft and the cylindrical part, the fuel is heated to be injected from the nozzle body by a heater arranged at an outside of the fuel path of the cylindrical part, and a sleeve is mounted in the fuel path so that a large diameter part thereof closes the fuel path at an upper area of the fuel outlet port, while a fuel inlet port is formed on a small diameter part of the sleeve to introduce the fuel into the fuel path, so that the fuel path is narrowed to decrease an amount of the fuel to be heated by the heater.
摘要翻译： 通过使包括中空阀轴的阀体在其前端安装有具有阀座的喷嘴体的壳体的圆筒部中被布置，加热时间缩短，引入燃料 从在阀轴的轴壁上开口的燃料出口到由阀轴和圆柱形部分形成的燃料通路中，燃料被加热，该燃料通过布置在燃料路径外侧的加热器从喷嘴体喷射 并且套筒安装在燃料路径中，使得其大直径部分在燃料出口的上部区域处封闭燃料路径，同时燃料入口形成在套筒的小直径部分上 以将燃料引入燃料路径，使得燃料路径变窄以减少加热器将被加热的燃料的量。
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