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1. 发明公开

EP2441947A1 High-pressure fuel supply pump having electromagnetically-driven intake valve 有权转让
标题翻译：具备电磁驱动型的吸入阀的高压燃油泵
公开(公告)号：EP2441947A1
公开(公告)日：2012-04-18
申请号：EP11185185.3
申请日：2011-10-14
申请人： Hitachi Automotive Systems, Ltd.
发明人： Usui, Satoshi , Tokuo, Kenichiro , Kawano, Tatsuo , Hayatani, Masahiko , Tamura, Shingo , Yamada, Hiroyuki , Miyazaki, Katsumi
IPC分类号： F02M59/36 , F02M63/00
CPC分类号： F02M59/366 , F02M37/0023 , F02M37/043 , F02M59/367 , F02M63/0017 , F02M63/0035 , F04B7/0076 , F04B53/10 , F04B53/1087 , Y10T137/86027
摘要： It is an object of the present invention to improve responsiveness in valve opening and valve closing of an electromagnetically-driven intake valve unit (200) in which a valve (203) is provided on a pressurizing chamber side of a valve seat (214S). The valve includes an annular abutting surface (203R) that abuts the valve seat (214S) to shut off a fuel intake passage and a bottomed cylindrical part (203F,203H) provided at an inner peripheral part of the annular abutting surface (203R). The bottomed cylindrical part (203F,203H) is inserted into a fuel introduction hole (214P) formed in the valve housing (214) inside the valve seat (214S), and the outer surface of an end part of the bottomed cylindrical part (203F,203H) is exposed to fuel in a low pressure fuel chamber (10A) provided upstream of the fuel introduction hole (214P). Thus, a low pressure is less produced upstream of the valve seat (214S) and thereby a static or dynamic fluid force of the fluid for biasing the valve (203) toward the valve opening direction is exerted on the entire outer surface of the valve (203), so that it is possible to provide a fast and stable valve opening speed of the valve (203).

2. 发明授权

EP2441948B1 High-pressure fuel supply pump having electromagnetically-driven intake valve 有权转让
标题翻译： Ho il il il il il il il il il il il il il il il
公开(公告)号：EP2441948B1
公开(公告)日：2017-05-31
申请号：EP11185223.2
申请日：2011-10-14
申请人： Hitachi Automotive Systems, Ltd.
发明人： Usui, Satoshi , Tokuo, Kenichiro , Kawano, Tatsuo , Hayatani, Masahiko , Tamura, Shingo , Yamada, Hiroyuki , Miyazaki, Katsumi
IPC分类号： F02M59/36 , F02M63/00
CPC分类号： F02M63/0035 , F02M59/367 , F02M63/0017 , F02M2200/315 , F04B49/243

3. 发明公开

EP2476895A3 High pressure fuel supply pump 审中-公开
公开(公告)号：EP2476895A3
公开(公告)日：2013-08-07
申请号：EP12150930.1
申请日：2012-01-12
申请人： Hitachi Automotive Systems, Ltd.
发明人： Aritomi, Shunsuke , Tokuo, Kenichiro , Suganami, Masayuki , Usui, Satoshi , Miyazaki, Katsumi
IPC分类号： F02M59/10
CPC分类号： F02M59/102 , F04B1/0426
摘要： In a high pressure fuel supply pump for transmitting rotation of a cam 7 to a reciprocating plunger 2 via a tappet 6 and a retainer 3, a diametric force acting on the plunger 2 is reduced. The high pressure fuel supply pump includes the retainer 3 disposed on the plunger 2 and a return spring 4 exerting an urging force on the retainer 3 in a direction of the tappet 6. A clearance between a plunger leading end 201 and a tappet bottom surface 601 opposed thereto is set to be greater than a clearance between a retainer bottom surface 301 and the tappet bottom surface 602 opposed thereto, and a clearance between a retainer inside diameter section 302 and a plunger peripheral surface section 203 opposed thereto is set to be greater than a clearance between a retainer outside diameter section 303 and a tappet inner wall 603 opposed thereto. The foregoing arrangements make a plunger diametric force involved in flexural deformation or shear deformation of the spring 4 less easy to be transmitted to the plunger 2. As a result, a fault of the plunger 2 galling a cylinder inner wall 2A can be reduced.

4. 发明公开

EP2554825A2 Control method of magnetic solenoid valve 有权转让
标题翻译： Verfahren zur Steuerung eines Magnetventils
公开(公告)号：EP2554825A2
公开(公告)日：2013-02-06
申请号：EP12178853.3
申请日：2012-08-01
申请人： Hitachi Automotive Systems, Ltd.
发明人： Tokuo, Kenichiro , Usui, Satoshi , Suganami, Masayuki , Aritomi, Shunsuke
IPC分类号： F02D41/20 , F02D41/30
CPC分类号： F02D41/3082 , F02D41/20 , F02D41/3845 , F02D2041/2027 , F02D2041/2037 , F02D2041/2058 , F04B7/0053 , F04B17/05 , F04B49/065 , F04B49/243 , Y10T137/0318
摘要： In an electromagnetically controlled inlet valve actuator 200 provided to a high pressure fuel pump, an impinging sound which is generated at the time of operating the mechanism is reduced. In a high pressure fuel pump provided with an electromagnetically controlled inlet valve, a current supply period includes a 1st current supply period for performing an operation of attracting a plunger rod 201 in a valve closing direction, a 2nd current supply period for alleviating a speed at which the plunger rod 201 moves in a valve opening direction, and a limited current supply period disposed between the 1st current supply period and the 2nd current supply period in the form of spanning a pump top dead center. Due to such a constitution, a moving distance and an impingement speed of the plunger rod 201 can be reduced so that noises can be reduced with high accuracy. Further, by providing the limited current supply period, a heating value and power consumption of the system can be reduced.
摘要翻译：在设置于高压燃料泵的电磁控制的入口阀致动器200中，减少了在操作机构时产生的入射声。在设置有电磁控制的入口阀的高压燃料泵中，电流供给期间包括用于进行吸入柱塞杆201的关闭方向的动作的第1电流供给期间，第2电流供给期间，柱塞杆201在阀打开方向上移动，并且限制的电流供应周期以跨越泵上止点的形式布置在第一电流供应周期和第二电流供应周期之间。由于这样的结构，可以减小柱塞杆201的移动距离和冲击速度，从而可以高精度地降低噪音。此外，通过提供有限的电流供应周期，可以降低系统的发热值和功率消耗。

5. 发明公开

EP2441948A1 High-pressure fuel supply pump having electromagnetically-driven intake valve 有权转让
标题翻译：具有电磁驱动进气阀的高压燃料供给泵
公开(公告)号：EP2441948A1
公开(公告)日：2012-04-18
申请号：EP11185223.2
申请日：2011-10-14
申请人： Hitachi Automotive Systems, Ltd.
发明人： Usui, Satoshi , Tokuo, Kenichiro , Kawano, Tatsuo , Hayatani, Masahiko , Tamura, Shingo , Yamada, Hiroyuki , Miyazaki, Katsumi
IPC分类号： F02M59/36 , F02M63/00
CPC分类号： F02M63/0035 , F02M59/367 , F02M63/0017 , F02M2200/315 , F04B49/243
摘要： It is an object of the present invention to eliminate a valve holder and accommodate a valve guide in a small space provided between a valve seat and a peripheral surface part of a pressure chamber to thereby bring a pump into less size. In order to achieve the above object, the valve guide (SG) which guides a stroke of a valve (203) is provided inside the valve seat (214S). Specifically, a valve (203) includes an annular abutting surface (203R) that abuts a valve seat (214S) formed in a valve housing (214) to shut off a fuel intake passage and a bottomed cylindrical part (203F,203H) provided at an inner peripheral part of the annular abutting surface (203R). The bottomed cylindrical part (203F,203H) is inserted into a fuel introduction hole (214P) formed in the valve housing (214) inside the valve seat (214S). A member having a cylindrical surface part which supports a reciprocating motion of the valve (203), is fixed to the valve housing (214), in face-to-face with an inner peripheral part of the bottomed cylindrical part (203F,203H). Thus, the size of the valve guide (SG) that protrudes from the surface of the valve seat (214S) to the pressure chamber side can be shortened. It is therefore possible to bring an inlet valve mechanism portion into less size and eventually render the pump in a small size.
摘要翻译：本发明的目的是消除阀支架并将阀导管容纳在设置在阀座和压力腔的周边表面部分之间的小空间中，从而使泵变小。为了实现上述目的，在阀座（214S）的内部设置有引导阀（203）的行程的阀引导件（SG）。具体而言，阀203包括与形成于阀壳体214的阀座214S抵接而切断燃料吸入通路的环状的抵接面203R和设置于其上的有底圆筒部203F，203H，环形邻接表面（203R）的内周边部分。有底筒状部（203F，203H）插入阀座（214S）内的阀壳体（214）上形成的燃料导入孔（214P）内。具有支撑阀（203）的往复运动的圆柱形表面部分的构件与有底圆筒形部分（203F，203H）的内周部分面对面地固定在阀壳体（214）上，。因此，能够缩短从阀座（214S）的表面向压力室侧突出的阀导件（SG）的尺寸。因此可以使入口阀机构部分的尺寸更小并且最终使得泵的尺寸更小。

6. 发明公开

EP2476895A2 High pressure fuel supply pump 审中-公开
标题翻译：高压燃油供应泵
公开(公告)号：EP2476895A2
公开(公告)日：2012-07-18
申请号：EP12150930.1
申请日：2012-01-12
申请人： Hitachi Automotive Systems, Ltd.
发明人： Aritomi, Shunsuke , Tokuo, Kenichiro , Suganami, Masayuki , Usui, Satoshi , Miyasaki, Katsumi
IPC分类号： F02M59/10
CPC分类号： F02M59/102 , F04B1/0426
摘要： In a high pressure fuel supply pump for transmitting rotation of a cam 7 to a reciprocating plunger 2 via a tappet 6 and a retainer 3, a diametric force acting on the plunger 2 is reduced. The high pressure fuel supply pump includes the retainer 3 disposed on the plunger 2 and a return spring 4 exerting an urging force on the retainer 3 in a direction of the tappet 6. A clearance between a plunger leading end 201 and a tappet bottom surface 601 opposed thereto is set to be greater than a clearance between a retainer bottom surface 301 and the tappet bottom surface 602 opposed thereto, and a clearance between a retainer inside diameter section 302 and a plunger peripheral surface section 203 opposed thereto is set to be greater than a clearance between a retainer outside diameter section 303 and a tappet inner wall 603 opposed thereto. The foregoing arrangements make a plunger diametric force involved in flexural deformation or shear deformation of the spring 4 less easy to be transmitted to the plunger 2. As a result, a fault of the plunger 2 galling a cylinder inner wall 2A can be reduced.
摘要翻译：在用于通过挺杆6和保持器3将凸轮7的旋转传递到往复式柱塞2的高压燃料供给泵中，作用在柱塞2上的径向力减小。高压燃料供给泵包括设置在柱塞2上的保持器3以及沿推杆6的方向对保持器3施加推力的复位弹簧4.柱塞前端201与挺杆底面601之间的间隙设定为比保持器底面301与与其相对的挺杆底面602之间的间隙大，保持器内径部302与与其相对的柱塞周面部203之间的间隙大于保持器外径部303与与其相对的挺杆内壁603之间的间隙。上述配置使得弹簧4的弯曲变形或剪切变形中所涉及的柱塞径向力不易传递到柱塞2.结果，可以减少卡住缸体内壁2A的柱塞2的故障。

7. 发明公开

EP2554825A3 Control method of magnetic solenoid valve 有权转让
标题翻译：磁电磁阀的控制方法
公开(公告)号：EP2554825A3
公开(公告)日：2018-03-21
申请号：EP12178853.3
申请日：2012-08-01
申请人： Hitachi Automotive Systems, Ltd.
发明人： Tokuo, Kenichiro , Usui, Satoshi , Suganami, Masayuki , Aritomi, Shunsuke
IPC分类号： F02D41/20 , F02D41/30 , F02D41/38
CPC分类号： F02D41/3082 , F02D41/20 , F02D41/3845 , F02D2041/2027 , F02D2041/2037 , F02D2041/2058 , F04B7/0053 , F04B17/05 , F04B49/065 , F04B49/243 , Y10T137/0318
摘要： In an electromagnetically controlled inlet valve actuator 200 provided to a high pressure fuel pump, an impinging sound which is generated at the time of operating the mechanism is reduced. In a high pressure fuel pump provided with an electromagnetically controlled inlet valve, a current supply period includes a 1st current supply period for performing an operation of attracting a plunger rod 201 in a valve closing direction, a 2nd current supply period for alleviating a speed at which the plunger rod 201 moves in a valve opening direction, and a limited current supply period disposed between the 1st current supply period and the 2nd current supply period in the form of spanning a pump top dead center. Due to such a constitution, a moving distance and an impingement speed of the plunger rod 201 can be reduced so that noises can be reduced with high accuracy. Further, by providing the limited current supply period, a heating value and power consumption of the system can be reduced.
摘要翻译：在设置于高压燃料泵的电磁控制的入口阀致动器200中，减少了在操作机构时产生的撞击声。在具备电磁控制型的吸入阀的高压燃料泵中，电流供给期间包括用于进行使柱塞杆201向闭阀方向吸引的动作的第1通电期间，用于缓和速度降低的第2通电期间柱塞杆201向开阀方向移动的限制电流供给期间以跨越泵上止点的方式设置在第一电流供给期间与第二电流供给期间之间。由于这种构造，可以减小柱塞杆201的移动距离和冲击速度，从而可以高精度地降低噪音。此外，通过提供有限的电流供应时段，可以降低系统的发热量和功耗。

8. 发明授权

EP2441947B1 High-pressure fuel supply pump having electromagnetically-driven intake valve 有权转让
标题翻译：具有电磁驱动进气阀的高压燃料供给泵
公开(公告)号：EP2441947B1
公开(公告)日：2017-05-31
申请号：EP11185185.3
申请日：2011-10-14
申请人： Hitachi Automotive Systems, Ltd.
发明人： Usui, Satoshi , Tokuo, Kenichiro , Kawano, Tatsuo , Hayatani, Masahiko , Tamura, Shingo , Yamada, Hiroyuki , Miyazaki, Katsumi
IPC分类号： F02M37/00 , F02M37/04 , F02M63/00 , F02M59/36
CPC分类号： F02M59/366 , F02M37/0023 , F02M37/043 , F02M59/367 , F02M63/0017 , F02M63/0035 , F04B7/0076 , F04B53/10 , F04B53/1087 , Y10T137/86027
摘要： It is an object of the present invention to improve responsiveness in valve opening and valve closing of an electromagnetically-driven intake valve unit (200) in which a valve (203) is provided on a pressurizing chamber side of a valve seat (214S). The valve includes an annular abutting surface (203R) that abuts the valve seat (214S) to shut off a fuel intake passage and a bottomed cylindrical part (203F,203H) provided at an inner peripheral part of the annular abutting surface (203R). The bottomed cylindrical part (203F,203H) is inserted into a fuel introduction hole (214P) formed in the valve housing (214) inside the valve seat (214S), and the outer surface of an end part of the bottomed cylindrical part (203F,203H) is exposed to fuel in a low pressure fuel chamber (10A) provided upstream of the fuel introduction hole (214P). Thus, a low pressure is less produced upstream of the valve seat (214S) and thereby a static or dynamic fluid force of the fluid for biasing the valve (203) toward the valve opening direction is exerted on the entire outer surface of the valve (203), so that it is possible to provide a fast and stable valve opening speed of the valve (203).
摘要翻译：本发明的目的在于提高在阀座（214S）的加压室侧设置有阀（203）的电磁驱动型吸入阀单元（200）的开阀和闭阀的响应性。该阀包括邻接阀座（214S）以切断燃料进入通道的环形邻接表面（203R）和设置在环形邻接表面（203R）的内周边部分处的有底圆柱形部分（203F，203H）。有底圆筒部（203F，203H）插入形成于阀座（214S）内的阀壳体（214）内的燃料导入孔（214P）内，并且有底圆筒部（203F）的端部外表面，203H）在设于燃料导入孔（214P）的上游侧的低压燃料室（10A）内暴露于燃料。因此，在阀座（214S）的上游产生较小的低压，并且由此用于将阀（203）朝阀打开方向偏置的流体的静态或动态流体力施加在阀的整个外表面上 203），从而可以提供阀（203）的快速和稳定的开阀速度。

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