公开(公告)号：US11060553B2

公开(公告)日：2021-07-13

申请号：US16435905

申请日：2019-06-10

申请人： Lombardini S.R.L.

发明人： Stefano Manelli ,  Marco Magnani ,  Luciano Rosastri ,  Valentino Scarpellini

IPC分类号： F16B41/00 ,  F16B37/14 ,  F16B39/02 ,  F02M59/26 ,  F02M59/28 ,  F02M59/44 ,  F02D1/04 ,  F16B43/00 ,  F16B21/18

摘要： Disclosed is an anti-tampering device including a threaded element having a thread defining a screwing axis and an engaging surface for engagement with a driving tool, and a protection body for preventing the driving tool from engaging the engaging surface. The protection body is coupled to the threaded element so that they are mutually blocked in a direction parallel to the screwing axis and free to spin around the screwing axis.

公开(公告)号：US09074567B2

公开(公告)日：2015-07-07

申请号：US13702096

申请日：2010-10-27

申请人： Deuk-Jin Park ,  Ju-Tae Kim ,  Eung-Sung Kim ,  Kang-Yun Jung ,  Kwang-Cheol Heo ,  Jong-Suk Kim ,  Eun Ha ,  Beom-Yong No

发明人： Deuk-Jin Park ,  Ju-Tae Kim ,  Eung-Sung Kim ,  Kang-Yun Jung ,  Kwang-Cheol Heo ,  Jong-Suk Kim ,  Eun Ha ,  Beom-Yong No

IPC分类号： F04B7/06 ,  F02M59/26 ,  F02M59/28 ,  F02M59/44

CPC分类号： F02M59/26 ,  F02M59/28 ,  F02M59/44

摘要： A fuel injection pump having a separable plunger includes a separable plunger of which outer circumference is slide coupled to an inside of the a such that a lower portion thereof is supported by an upper portion of a main plunger to enable upward and downward slide movement in association with the main plunger, wherein an injection timing control spiral step of which upper surface is formed in a spiral shape, is protrudingly formed on the outer circumference thereof and a fuel passage is formed on one side of the outer circumference thereof including the injection timing control spiral step and an elastic member having a lower portion elastically supported by the separable plunger and an upper portion inserted within the barrel to be supported by an upper surface of the barrel.

摘要翻译： 具有可分离柱塞的燃料喷射泵包括可分离柱塞，其外周滑动地联接到a的内侧，使得其下部由主柱塞的上部支撑，以使得能够相关联地向上和向下滑动运动 与主柱塞一起，其上表面形成为螺旋状的喷射正时控制螺旋步骤突出地形成在其外周上，并且在其外周的一侧上形成燃料通道，包括喷射正时控制 螺旋台阶和弹性构件，其具有由所述可分离柱塞弹性支撑的下部，以及插入所述筒内的上部，以由所述筒的上表面支撑。

公开(公告)号：US6149073A

公开(公告)日：2000-11-21

申请号：US21296

申请日：1998-02-10

申请人： Dan K. Hickey ,  J. Victor Perr ,  David M. Rix ,  Joseph C. Bentz ,  Thomas M. Yonushonis ,  Malcolm G. Naylor ,  Katsuhiro Shinosawa ,  John T. Carroll, III

发明人： Dan K. Hickey ,  J. Victor Perr ,  David M. Rix ,  Joseph C. Bentz ,  Thomas M. Yonushonis ,  Malcolm G. Naylor ,  Katsuhiro Shinosawa ,  John T. Carroll, III

IPC分类号： F02M41/04 ,  F02M41/08 ,  F02M41/12 ,  F02M41/14 ,  F02M57/02 ,  F02M59/06 ,  F02M59/26 ,  F02M59/44 ,  F02M63/02 ,  F04B53/02 ,  F04B53/14 ,  F02M47/02 ,  F02M45/50

CPC分类号： F02M57/023 ,  F02M41/042 ,  F02M41/08 ,  F02M41/121 ,  F02M41/1405 ,  F02M57/024 ,  F02M59/06 ,  F02M59/445 ,  F02M63/0225 ,  F04B53/144 ,  F05C2203/0869 ,  F05C2203/0895 ,  F05C2251/042 ,  F05C2251/10

摘要： A wear and scuff-resistant plunger for use in high pressure fuel system components in internal combustion engines is provided. The plunger, which is formed of a high thermal expansion, high hardness ceramic with a thermal expansion coefficient preferably greater than 6.times.10.sup.-6 /.degree. C. and a hardness preferably greater than 800 Kg/mM.sup.2, maintains a desired optimum minimal diametral clearance while avoiding excessive fuel leakage and efficient plunger function without scuffing or sticking under the high axial, side and pressure loads and variable quality fuels encountered in the fuel system operating environment. Preferred high thermal expansion, high hardness ceramics are zirconia, alumina-zirconia and alumina.

摘要翻译： 提供了一种用于内燃机中的高压燃料系统部件的耐磨和耐磨柱塞。 由热膨胀系数优选大于6×10 -6 /℃，硬度优选大于800Kg / mM 2的高热膨胀高硬度陶瓷形成的柱塞在避免时保持期望的最佳最小直径间隙 过度的燃料泄漏和高效的柱塞功能，在燃料系统运行环境中遇到的高轴向，侧压和高负荷以及可变质量的燃料下不会磨损或粘附。 优选的高热膨胀，高硬度陶瓷是氧化锆，氧化铝 - 氧化锆和氧化铝。

公开(公告)号：US6131549A

公开(公告)日：2000-10-17

申请号：US249784

申请日：1999-02-16

申请人： Yoshihiko Onishi

发明人： Yoshihiko Onishi

IPC分类号： F02M37/00 ,  F02M55/00 ,  F02M59/26 ,  F02M59/44 ,  F02M59/46 ,  F04B49/08 ,  F04B53/04 ,  F02M37/04

CPC分类号： F04B53/04 ,  F02M55/004 ,  F02M59/44 ,  F04B49/08 ,  F04B2205/05

摘要： In a high pressure fuel pumping apparatus 3, a drain passage 12 for fuel having leaked from the inside of a fuel sealing metallic bellows 26, and another drain passage 13 for a high pressure fuel regulator 8 for regulating the pressure discharged from the high pressure fuel pumping apparatus are merged at a merging point. A lead type of check valve 17 is located upstream in the drain passage 12 between the merging point 14 and the fuel sealing metallic bellows 26, and a ball type of check valve 18 is located downstream in the drain passage 12.

摘要翻译： 在高压燃料抽吸装置3中，用于从燃料密封金属波纹管26的内部泄漏的燃料排出通道12和用于调节从高压燃料排出的压力的高压燃料调节器8的另一排放通道13 泵送装置在合并点合并。 止回阀17的引导类型位于合流点14和燃料密封金属波纹管26之间的排水通道12的上游，止回阀18位于排水通道12的下游。

公开(公告)号：US06116870A

公开(公告)日：2000-09-12

申请号：US960575

申请日：1997-10-29

申请人： Manfred Kraemer

发明人： Manfred Kraemer

IPC分类号： F02M59/20 ,  F02M59/26 ,  F02M59/36 ,  F02M59/46 ,  F02M63/02 ,  F04B7/00 ,  F04B11/00 ,  F04B49/24 ,  F16K31/06 ,  F04B7/04 ,  F04B39/08

CPC分类号： F02M59/464 ,  F02M59/367 ,  F02M59/466 ,  F02M63/0225 ,  F04B49/243 ,  F04B7/0076

摘要： A high pressure pump which has a working chamber, which on the one hand, is connected to a low pressure circuit via a solenoid valve and on the other hand, is connected to a high pressure reservoir via a check valve. The solenoid valve has a spring-loaded closing body, which cooperates with a valve seat and together with it, constitutes the check valve. When the magnet is without current, the check function of the closing body is switched off via a valve tappet of the solenoid valve so that even with an initial working stroke of the high pressure pump, the connection to the low pressure circuit is maintained. Only with a supply of current to the solenoid valve executed during the working stroke does the valve tappet allow the closing body to contact its valve seat, whereupon the high pressure delivery then begins. The high pressure pump is designated for use in fuel injection systems of diesel motor vehicle engines.

摘要翻译： 具有工作室的高压泵一方面通过电磁阀连接到低压回路，另一方面通过止回阀连接到高压储存器。 电磁阀具有弹簧加载的关闭体，其与阀座一起配合，构成止回阀。 当磁体没有电流时，通过电磁阀的阀挺杆关闭闭合体的检查功能，使得即使在高压泵的初始工作行程下，仍保持与低压回路的连接。 只有在工作冲程期间执行的电磁阀供电，阀挺杆允许闭合体与其阀座接触，随后开始高压输送。 高压泵被指定用于柴油机动车辆发动机的燃料喷射系统。

公开(公告)号：US6009850A

公开(公告)日：2000-01-04

申请号：US58341

申请日：1998-04-10

申请人： Frank DeLuca

发明人： Frank DeLuca

IPC分类号： F02M57/02 ,  F02M59/26 ,  F02B3/00 ,  F02B7/04

CPC分类号： F02M57/02 ,  F02M59/265

摘要： A groove having a helix angle of zero or more is formed in the plunger of a diesel injector pump, the groove extending along and in association with the port-closing edge of the plunger and along at least a portion of the length of such port-closing edge. The groove interacts with the port that is associated with the port-closing edge to provide, in each of a succession of plunger strokes, initial fuel injection at feed rates lower than those which would obtain in the absence of the groove but without any loss of initial injection pressure, or without substantial loss of such pressure.

摘要翻译： 在柴油喷射器泵的柱塞中形成具有零或更大的螺旋角的凹槽，该凹槽沿着柱塞的端口关闭边缘并沿着该柱塞的端部的长度的至少一部分延伸， 关闭边缘。 槽与与端口关闭边缘相关联的端口相互作用，以在一系列柱塞冲程中的每一个中提供初始燃料喷射，其进料速率低于在没有凹槽时获得的燃料喷射，但没有任何损失 初始注射压力，或没有显着损失这种压力。

公开(公告)号：US5911207A

公开(公告)日：1999-06-15

申请号：US25664

申请日：1998-02-18

申请人： Takashi Ohishi ,  Toshihumi Noda ,  Tohru Yokota ,  Nobuhiro Kitahara

发明人： Takashi Ohishi ,  Toshihumi Noda ,  Tohru Yokota ,  Nobuhiro Kitahara

IPC分类号： F02M45/02 ,  F02M45/06 ,  F02M59/10 ,  F02M59/24 ,  F02M59/26 ,  F02M59/38 ,  F02M34/00 ,  F02B3/00

CPC分类号： F02M45/02 ,  F02M45/063 ,  F02M59/102 ,  F02M59/24 ,  F02M59/38

摘要： An objective of the present invention is to provide a fuel injection pump wherewith, in addition to main injection, pre-injection is made possible in the vicinity of top dead center in the exhaust stroke, and wherewith, by regulating the pre-stroke, defined as the stroke from bottom dead center of a plunger 2 to the commencement of fuel line pressurization, it is possible to freely control both the pre-injection volume and the pre-injection timing relative to the main injection. Attention having been given to the combining of a pre-stroke varying mechanism together with a two-stage injection mechanism, the present invention is a fuel injection pump that is made so that a pre-stroke is regulated by changing the relative positions, in the axial direction, of a plunger 2 that sends fuel under pressure and a control sleeve 3 that fits around the outside of the plunger 2 so as to slide freely thereon. The cam 4 that drives the plunger 2 comprises a main cam nose 20 for main injection use and a pre cam nose 21 for pre-injection use.

摘要翻译： 本发明的目的是提供一种燃料喷射泵，除了主喷射之外，在排气冲程中的上死点附近也可以进行预喷射，并且通过调节前冲程来定义 作为从柱塞2的下止点到燃料管路加压开始的冲程，可以相对于主喷射自由地控制预喷射量和预喷射正时。 注意到将前冲程变化机构与两级喷射机构结合在一起，本发明是一种燃料喷射泵，其被制成使得通过改变相对位置来调节前冲程，在 在压力下发送燃料的柱塞2的轴向方向以及围绕柱塞2的外部配合以便在其上自由滑动的控制套筒3。 驱动柱塞2的凸轮4包括用于主要注射用途的主凸轮鼻20和用于预注射使用的预凸轮鼻21。

公开(公告)号：US5775203A

公开(公告)日：1998-07-07

申请号：US789804

申请日：1997-01-28

申请人： J. Christopher Osborn ,  John W. Black

发明人： J. Christopher Osborn ,  John W. Black

IPC分类号： F01M9/10 ,  F02M59/10 ,  F02M59/26 ,  F02M59/44 ,  F02M63/00 ,  F01B29/00

CPC分类号： F02M63/0001 ,  F02M59/102 ,  F02M59/44

摘要： A high pressure fuel pump unit and assembly is provided which includes a pump barrel containing a bore, a pump plunger mounted in the bore for reciprocal movement between an advanced position and a retracted position, and a force transmitting device for transmitting axial loads to the plunger while minimizing side loads on the plunger. The force transmitting device includes an extension member extending into the inner radial extent of a bias spring and including a distal supporting end positioned in uncoupled abutment against a driven end of the pump plunger to form a decoupled force transmitting interface. The pump plunger and extension member are capable of relative lateral movement at the decoupled force transmitting interface which is positioned a spaced axial distance from the outer end of the pump barrel when the pump plunger is in the advanced position. The extension member is specifically formed with a predetermined axial length to minimize the spaced axial distance between the outer end of the pump barrel and the decouple force transmitting interface so as to minimize the leverage effect of any side loading and maximize the support provided to plunger by barrel throughout reciprocation of the plunger. The distal supporting end of the extension member may include a flat surface positioned in a single bearing plane wherein the extension member is positioned entirely on one side of the bearing plane to minimize the spaced axial distance.

摘要翻译： 提供了一种高压燃料泵单元和组件，其包括具有孔的泵筒，安装在孔中的泵柱塞，用于在先进位置和缩回位置之间往复运动，以及用于将轴向载荷传递到柱塞的力传递装置 同时最小化柱塞上的侧向载荷。 力传递装置包括延伸到偏置弹簧的内部径向范围内的延伸构件，并且包括位于与泵柱塞的从动端部分离的邻接处的远侧支撑端，以形成解耦力传递界面。 泵柱塞和延伸构件能够在解耦力传递界面处相对侧向运动，当泵柱塞处于前进位置时，该柱塞和延伸构件定位成与泵筒的外端间隔开的轴向距离。 延伸构件特别地形成有预定的轴向长度，以最小化泵筒的外端和解耦力传递界面之间的间隔开的轴向距离，以便最小化任何侧向负载的杠杆效应并且最大限度地提供给柱塞的支撑 柱塞往复运动。 延伸构件的远侧支撑端可以包括位于单个轴承平面中的平坦表面，其中延伸构件完全位于支承平面的一侧，以使间隔开的轴向距离最小化。

公开(公告)号：US5647326A

公开(公告)日：1997-07-15

申请号：US529764

申请日：1995-09-18

申请人： Hiroaki Kato ,  Hidekatsu Yashiro ,  Tsuyoshi Kodama

发明人： Hiroaki Kato ,  Hidekatsu Yashiro ,  Tsuyoshi Kodama

IPC分类号： F02M59/10 ,  F02M59/26 ,  F02M37/04 ,  F02M59/20

CPC分类号： F02M59/102 ,  F02M59/265

摘要： In a fuel injection pump equipped with a plunger producing preflow effect, pressurized fuel is delivered at least in the low engine speed region by driving the plunger using a region of a cam on the decreasing velocity side of its maximum velocity point. As a result, the fuel delivery rate is reduced during low-speed engine operation and increased during high-speed engine operation, providing an ideal fuel delivery rate for an indirect-injection type engine equipped with swirl chambers or auxiliary chambers.

摘要翻译： 在配备有产生预流效应的活塞的燃料喷射泵中，通过使用在其最大速度点的减速速度侧的凸轮区域驱动柱塞，至少在低发动机转速区域中输送加压燃料。 结果，在低速发动机运转期间燃料输送速率降低，并且在高速发动机运转期间增加，为配备有涡流室或辅助室的间接喷射式发动机提供理想的燃料输送速率。

公开(公告)号：US5487651A

公开(公告)日：1996-01-30

申请号：US220650

申请日：1994-03-31

申请人： Josef Guentert ,  Hans Brett

发明人： Josef Guentert ,  Hans Brett

IPC分类号： F02M59/26

CPC分类号： F02M59/265

摘要： A fuel injection pump for internal combustion engines having a pump piston guided in a cylinder liner and defining in the cylinder liner a pump work chamber, which piston cooperates with a control opening in the wall of the cylinder liner to control the high pressure delivery. To control the supply onset, the pump piston has on its face end three control edges offset from each other along the length of the piston; a zero supply quantity region is provided between the first control edge, which controls a very early supply onset, and the remaining control edges. The control of the end of supply is achieved via an oblique control recess in the piston jacket face, which recess communicates with the pump work chamber, and which is embodied by two oblique grooves, which are offset from each other, whose edges toward the pump work chamber form a first oblique control edge, and a second oblique control edge separated from the first oblique edge by a shoulder; the distance between the second oblique control edge and the second face-end control edge disposed above it in the region of the shoulder is less than the diameter of the control opening, so that a zero supply quantity region is formed without sharply reducing the control path region on the pump piston.

摘要翻译： 一种用于内燃机的燃料喷射泵，其具有在气缸套中引导并在气缸套中限定泵工作室的泵活塞，该活塞与气缸套的壁中的控制开口配合以控制高压输送。 为了控制供油开始，泵活塞在其表面端部具有沿活塞长度彼此偏移的三个控制边缘; 在控制非常早的供应开始的第一控制边缘和剩余的控制边缘之间提供零供应量区域。 供应端的控制是通过活塞套中的倾斜控制凹槽实现的，该凹槽与泵工作室连通，该倾斜控制凹槽由两个相互偏移的倾斜槽构成，其倾斜的边缘朝向泵 工作室形成第一倾斜控制边缘，并且第二倾斜控制边缘由第一倾斜边缘与肩部分离; 在肩部的区域中设置在其上方的第二倾斜控制边缘和第二面部端部控制边缘之间的距离小于控制开口的直径，从而形成零供给区域，而不会急剧地减小控制路径 泵活塞上的区域。