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1. 发明申请

US20020044873A1 High pressure fuel pump 审中-公开
标题翻译：高压燃油泵
公开(公告)号：US20020044873A1
公开(公告)日：2002-04-18
申请号：US10015676
申请日：2001-12-17
申请人： Hitachi, Ltd.
发明人： Minoru Hashida , Yukio Takahashi , Yoshinobu Ono , Hideki Machimura , Takefumi Yamamura , Masayoshi Kotaki
IPC分类号： F04B001/12
CPC分类号： F04B1/124 , F04B1/143
摘要： An axial plunger pump according to the present invention is constructed so as to comprise a shaft having a swash plate effecting swing motion and transmitting driving force from the outside, plungers each reciprocating by the swing motion of the swash plate, a cylinder block having cylinders formed so as to open on the side of the swash plate and inserting therein the plungers and having passages for supplying fuel to the cylinders, a body combined with the cylinder block to enclose the swash plate, and sealing members arranged between the plungers and the cylinders on the swash plate side of the passages formed in the cylinder block for sealing gaps between the plungers and the cylinders, respectively.
摘要翻译：根据本发明的轴向柱塞泵构造成包括具有旋转斜盘的轴，其具有摆动运动并且从外部传递驱动力，每个往复运动的柱塞通过旋转斜盘的摆动运动;缸体，其形成有气缸以便在斜盘的侧面上打开并插入柱塞并具有用于向缸体供应燃料的通道，与气缸体组合以封闭斜板的主体以及布置在柱塞和气缸之间的密封构件形成在气缸体中的通道的斜板侧分别用于密封柱塞和气缸之间的间隙。

2. 发明申请

US20040003713A1 Fuel pump for inter-cylinder direct fuel injection apparatus 失效
标题翻译：用于缸内直接燃油喷射装置的燃油泵
公开(公告)号：US20040003713A1
公开(公告)日：2004-01-08
申请号：US10283173
申请日：2002-10-30
申请人： Hitachi, Ltd.
发明人： Shizuka Yamaguchi , Noboru Baba , Masaya Takahahsi , Katsuyoshi Terakado , Arata Kagiyama , Masayoshi Kotaki , Shogo Sawada , Kazuo Ojima , Hiroyuki Yamada , Hideki Machimura , Yukio Takahashi
IPC分类号： F16J010/00
CPC分类号： C23C28/321 , C23C28/345 , F04B1/0404 , F04B53/162 , F05C2201/021 , F05C2201/903 , F05C2253/12 , Y10S428/936 , Y10T137/7036 , Y10T137/85978 , Y10T428/1275 , Y10T428/12944
摘要： Disclosed herein is a fuel pump for an inter-cylinder direct fuel injection apparatus, in which occurrence of corrosion and attrition caused by cavitation or erosion can be suppressed, their resistance against the environment can be improved, and an excellent lifetime can be achieved in the case of the use of an aluminum material even if the temperature reaches as high as 100null C. or higher and the pressure reaches as high as 7 to 12 MPa. In the fuel pump for an inter-cylinder direct fuel injection apparatus, made of aluminum or an aluminum alloy, a coating film plated with NinullP or a NinullP based material is formed by electroless plating.
摘要翻译：这里公开了一种用于缸内直接燃料喷射装置的燃料泵，其中可以抑制由空化或侵蚀引起的腐蚀和磨损的发生，可以提高其对环境的抵抗力，并且可以在即使温度高达100℃以上，压力达到高达7〜12MPa，也可以使用铝材的情况。在由铝或铝合金制成的缸内直接燃料喷射装置的燃料泵中，通过无电镀形成镀Ni-P或Ni-P基材料的涂膜。

3. 发明申请

US20030017069A1 High pressure fuel pump for internal combustion engine 审中-公开
标题翻译：用于内燃机的高压燃油泵
公开(公告)号：US20030017069A1
公开(公告)日：2003-01-23
申请号：US10084386
申请日：2002-02-28
申请人： Hitachi, Ltd.
发明人： Satoshi Usui , Hiroyuki Yamada , Toru Onose , Atsuji Saito , Masami Abe , Masayoshi Kotaki , Hiroshi Odakura
IPC分类号： F04B039/10
CPC分类号： F02M59/102 , F02M59/442 , F02M2200/16 , F04B53/04
摘要： A high pressure fuel pump for an internal combustion engine having a cylinder, a plunger slidably fitted in the cylinder and a seal mechanism for blocking fuel leakage from an end of a sliding portion between the cylinder and the plunger and also for preventing an lubricant for a driving mechanism of the plunger from entering into the cylinder from the end of the sliding portion of the cylinder and the plunger. A holder surrounding the end of the sliding portion of the cylinder and the plunger is provided. The seal mechanism comprises two mutually independent seal devices mounted with a specific spacing in a longitudinal direction from the end of the sliding portion of the cylinder and the plunger along a circumference of the plunger. The two seal devices are held on the circumference of the plunger by the holder surrounding the end of the sliding portion of the cylinder and the plunger while keeping the specific spacing.
摘要翻译：一种用于内燃机的高压燃料泵，其具有气缸，可滑动地装配在气缸中的柱塞和用于阻挡燃料从气缸和柱塞之间的滑动部分的端部泄漏的密封机构，并且还用于防止润滑剂柱塞的驱动机构从气缸和柱塞的滑动部分的端部进入气缸。提供围绕气缸和柱塞的滑动部分的端部的保持器。密封机构包括两个相互独立的密封装置，其沿从柱塞的滑动部分的端部沿柱塞的圆周方向在长度方向上以特定的间隔安装。两个密封装置通过保持器围绕气缸和柱塞的滑动部分的端部保持在柱塞的圆周上，同时保持特定间隔。

4. 发明申请

US20030089343A1 Fuel pump and direct fuel injection engine 失效
标题翻译：燃油泵和直接燃油喷射发动机
公开(公告)号：US20030089343A1
公开(公告)日：2003-05-15
申请号：US10084067
申请日：2002-02-28
申请人： Hitachi, Ltd.
发明人： Shizuka Yamaguchi , Noboru Baba , Toshiaki Nagayama , Katsuyoshi Terakado , Arata Kagiyama , Hideki Machimura , Hiroyuki Yamada , Yukio Takahashi , Masayoshi Kotaki , Kazuo Ojima
IPC分类号： F02M037/04
CPC分类号： C23C28/044 , C23C8/80 , C23C28/00 , C23C28/048 , F02M59/102 , F02M59/366 , F02M59/445 , F02M63/0225 , F02M2200/02 , F04B1/0408 , F04B1/0413 , F04B1/0421 , F04B1/0426 , F04B1/143 , F04B1/146 , F05C2253/12
摘要： A fuel pump, of which sliding mechanism parts in its fuel chamber have good wear resistance under a severe environment, and a direct fuel injection engine using the fuel pump are provided. In a fuel pump for pressurizing and delivering fuel to a fuel injector of a vehicle engine, at least one of sliding surfaces of a slant plate, a slipper and a plunger sliding in a lubricating oil and at least one of sliding surfaces of sliding members of a plunger and a cylinder contacting with and sliding on each other through the fuel are formed of a hardened layer composed of any one of a nitrided layer, a carburization quenched layer and a carbonitrided layer, or coated with a high corrosion resistant and hard metal compound layer over the hardened layer.
摘要翻译：一种燃料泵，其燃料室中的滑动机构部件在恶劣的环境下具有良好的耐磨性，并且提供了使用燃料泵的直接燃料喷射发动机。在用于将燃料加压并输送到车辆发动机的燃料喷射器的燃料泵中，倾斜板，拖鞋和在润滑油中滑动的柱塞的滑动面中的至少一个以及至少一个滑动部件的滑动面通过燃料接触并相互滑动的柱塞和圆柱体由由氮化层，渗碳淬火层和碳氮共渗层中的任一个构成的硬化层形成，或者涂覆有高耐腐蚀性和硬质金属化合物层在硬化层上。

5. 发明申请

US20030219346A1 High-pressure fuel pump 有权
标题翻译：高压燃油泵
公开(公告)号：US20030219346A1
公开(公告)日：2003-11-27
申请号：US10442203
申请日：2003-05-21
申请人： Hitachi, Ltd. , Hitachi Car Engineering Co., Ltd.
发明人： Masami Abe , Hiroyuki Yamada , Toru Onose , Atsuji Saito , Satoshi Usui , Masayoshi Kotaki , Hiroshi Odakura
IPC分类号： F04B049/00
CPC分类号： F04B53/16 , F02M55/04 , F02M59/34 , F02M59/366 , F02M59/442 , F02M59/46 , F02M63/0036 , F02M63/005 , F02M63/0054 , F02M63/0225 , F02M63/0245 , F02M63/028 , F02M2200/16 , F02M2200/304 , F02M2200/315 , F04B49/035 , F04B49/243
摘要： A simple structured high-pressure fuel pump. A fuel pump comprises a reciprocably-supported cylinder, a pressurizing chamber using part of the outer surface of the cylinder as the wall surface which move to change the internal volume, a fuel intake passage forming a fuel passage which introduces fuel to the pressurizing chamber, a fuel discharge passage for the compressed fuel coming out from the pressurizing chamber. A fuel intake valve is provided in fuel intake passage. A fuel discharge valve is provided in said fuel discharge passage. A connecting passage connects upstream side of the intake valve in the fuel intake passage and the downstream side of it. A check valve which flows fuel from the fuel discharge flow passage to the fuel intake passage is provided in the connecting passage.
摘要翻译：一种结构简单的高压燃油泵。燃料泵包括可往复支撑的气缸，使用所述气缸的外表面的一部分的加压室作为移动以改变内部容积的壁表面;燃料进入通道，形成将燃料引入所述加压室的燃料通道，用于从加压室排出的压缩燃料的燃料排出通道。燃料进入阀设置在燃料进入通道中。燃料排出阀设置在所述燃料排出通道中。连接通道连接进气通道的进气门的上游侧和下游侧。在连接通道中设置有将燃料从燃料排出流路流向燃料进气通路的止回阀。

6. 发明申请

US20020127119A1 High pressure fuel pump 失效
标题翻译：高压燃油泵
公开(公告)号：US20020127119A1
公开(公告)日：2002-09-12
申请号：US10141119
申请日：2002-05-09
申请人： Hitachi, Ltd.
发明人： Yoshinobu Ono , Yukio Takahashi , Hideki Machimura , Minoru Hashida , Masayoshi Kotaki , Takefumi Yamamura
IPC分类号： F04B001/12
CPC分类号： F04B1/2021 , F04B1/122 , F04B1/14 , F04B53/164
摘要： The present invention provides an axial plunger pump which does not need bellows by restricting fuel to a cylinder bore configuring a pump portion and by lubricating the other portion with oil. The high pressure fuel pump comprises a plunger reciprocating according to a shaking movement of a swash plate, a cylinder block forming a pump chamber together with the plunger, and a sealing member provided between the plunger and a cylinder bore for sealing oil leaked from the pump chamber to a chamber surrounding the pump chamber, wherein oil in the oil chamber is supplied from the outside of the high pressure fuel pump.
摘要翻译：本发明提供一种轴向柱塞泵，其不需要通过将燃料限制到构成泵部分的气缸孔并且通过用油润滑另一部分而不需要波纹管。高压燃料泵包括根据旋转斜盘的振动运动往复运动的柱塞，与柱塞一起形成泵室的气缸体和设置在柱塞与气缸孔之间的密封构件，用于密封从泵泄漏的油室到围绕泵室的室，其中油室中的油从高压燃料泵的外部供应。

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