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1. 发明公开

EP3441607A1 HIGH-PRESSURE FUEL SUPPLY PUMP HAVING ELECTROMAGNETICALLY-DRIVEN INTAKE VALVE 有权转让
公开(公告)号：EP3441607A1
公开(公告)日：2019-02-13
申请号：EP18188512.0
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： F02M63/00 , F02M59/36 , F04B49/24
摘要： A high-pressure fuel supply pump, comprising:
a piston plunger (2) reciprocating within a pressurizing chamber (12); and
an electromagnetically-driven intake valve mechanism (200) provided at an inlet of the pressurizing chamber (12),
wherein the electromagnetically-driven intake valve mechanism (200) includes an anchor (207) which pulls a plunger rod (201), a fixed core (206) which attracts the anchor (207), and a yoke (205) in which inner peripheral part the fixed core (206) is fixed;
wherein the fixed core (206) is rigidly fixed to a bottom part of the yoke (205) by press-fitting,
wherein a through hole (206H) is formed at a bottom part of the fixed core (206) and
wherein the fixed core (206) is press-fitted in an inner peripheral surface of a cylindrical space (205H) of the yoke (205) .

2. 发明授权

EP3088726B1 HIGH-PRESSURE FUEL SUPPLY PUMP 有权转让
公开(公告)号：EP3088726B1
公开(公告)日：2018-10-24
申请号：EP14874606.8
申请日：2014-11-17
申请人： Hitachi Automotive Systems, Ltd.
发明人： SASO, Yuta , TAMURA, Shingo , AKIYAMA, Moritsugu , SAITO, Atsuji , YAMADA, Hiroyuki , HOHKITA, Atsushi , USUI, Satoshi
IPC分类号： F02M59/46 , F02M59/44 , F02M59/48
CPC分类号： F04B49/22 , F02M59/025 , F02M59/368 , F02M59/44 , F02M59/447 , F02M59/46 , F02M59/462 , F02M59/48 , F02M2200/8061 , F04B19/22 , F04B49/24 , F04B53/16
摘要： A high-pressure fuel supply pump in which a relief valve mechanism is not detached by a force generated by a differential pressure between an inlet side and an output side of a relief valve mechanism is obtained. According to the present invention, in order to obtain the high-pressure fuel supply pump, the relief valve mechanism of the high-pressure fuel supply pump is oriented from a downstream side of a discharge valve to an upstream side of the discharge valve, and the output side of the relief valve mechanism is inserted from the upstream side of the discharge valve into the pump housing, and the relief valve mechanism is fixed with press fitting. Therefore, a force exerted by the differential pressure between the inlet side pressure and the output side pressure of the relief valve mechanism is exerted in a direction in which the relief valve mechanism is inserted, so that the relief valve mechanism can be prevented from being detached.

3. 发明公开

EP3467297A1 HIGH-PRESSURE FUEL FEEDING PUMP 有权转让
公开(公告)号：EP3467297A1
公开(公告)日：2019-04-10
申请号：EP17802461.8
申请日：2017-04-11
申请人： Hitachi Automotive Systems, Ltd.
发明人： USUI, Satoshi , SAITO, Atsuji , SUGANAMI, Masayuki , TOKUO, Kenichiro , HASHIDA, Minoru , HAYATANI, Masahiko , YAMADA, Hiroyuki , YAGAI, Masamichi
IPC分类号： F02M59/34 , F02M59/20
摘要： Provided is a high-pressure fuel supply pump capable of arranging a relief valve mechanism inside a pump body while suppressing an increase in size and an increase in manufacturing cost. Therefore, a high-pressure fuel supply pump of the present invention includes: a plunger that changes a volume of a pressurizing chamber by reciprocating an inside of a cylinder; a first hole formed from an outer circumferential surface of a pump body toward an inner circumferential side; a relief valve mechanism arranged in the first hole; and a second hole that returns fuel in a flow path on a discharge side of a discharge valve pressurized in the pressurizing chamber to a damper chamber or a plunger seal chamber communicating with the damper chamber when the relief valve mechanism opens in communication with the first hole. At least a part of the relief valve mechanism arranged in the first hole is arranged on the pressurizing chamber side with respect to the uppermost end portion on the pressurizing chamber side of the cylinder.

4. 发明公开

EP3088726A1 HIGH-PRESSURE FUEL SUPPLY PUMP 有权转让
标题翻译： HOCHDRUCKBRENNSTOFFFÖRDERPUMPE
公开(公告)号：EP3088726A1
公开(公告)日：2016-11-02
申请号：EP14874606.8
申请日：2014-11-17
申请人： Hitachi Automotive Systems, Ltd.
发明人： SASO, Yuta , TAMURA, Shingo , AKIYAMA, Moritsugu , SAITO, Atsuji , YAMADA, Hiroyuki , HOHKITA, Atsushi , USUI, Satoshi
IPC分类号： F02M59/46 , F02M59/44
CPC分类号： F04B49/22 , F02M59/025 , F02M59/368 , F02M59/44 , F02M59/447 , F02M59/46 , F02M59/462 , F02M59/48 , F02M2200/8061 , F04B19/22 , F04B49/24 , F04B53/16
摘要： A high-pressure fuel supply pump in which a relief valve mechanism is not detached by a force generated by a differential pressure between an inlet side and an output side of a relief valve mechanism is obtained. According to the present invention, in order to obtain the high-pressure fuel supply pump, the relief valve mechanism of the high-pressure fuel supply pump is oriented from a downstream side of a discharge valve to an upstream side of the discharge valve, and the output side of the relief valve mechanism is inserted from the upstream side of the discharge valve into the pump housing, and the relief valve mechanism is fixed with press fitting. Therefore, a force exerted by the differential pressure between the inlet side pressure and the output side pressure of the relief valve mechanism is exerted in a direction in which the relief valve mechanism is inserted, so that the relief valve mechanism can be prevented from being detached.
摘要翻译：获得了通过由安全阀机构的入口侧和输出侧之间的压差产生的力而不使卸压阀机构分离的高压燃料供给泵。根据本发明，为了获得高压燃料供给泵，高压燃料供给泵的安全阀机构从排出阀的下游侧向排出阀的上游侧取向，安全阀机构的输出侧从排出阀的上游侧插入泵壳体，并且安装阀机构用压配件固定。因此，由安全阀机构的入口侧压力和输出侧压力之间的压差施加的力沿安全阀机构插入的方向施加，使得可以防止安全阀机构脱离。

5. 发明公开

EP3054147A1 HIGH PRESSURE FUEL SUPPLY PUMP WITH ELECTROMAGNETIC SUCTION VALVE 有权转让
标题翻译： HOCHDRUCKBRENNSTOFFFÖRDERPUMPEMIT ELEKTROMAGNETISCHEM SAUGVENTIL
公开(公告)号：EP3054147A1
公开(公告)日：2016-08-10
申请号：EP16156119.6
申请日：2012-05-31
申请人： Hitachi Automotive Systems, Ltd.
发明人： KAWANO, Tatsuo , TOKUO, Kenichiro , USUI, Satoshi , YAMADA, Hiroyuki , MIYAZAKI, Katsumi
IPC分类号： F02M59/36 , F02M51/00 , F02M59/44 , F02M59/46 , F02M59/48 , F02M59/02
摘要： To reduce collision noise created by the operation of an electromagnetic suction valve (39) provided on a high pressure fuel supply pump. In the present invention, in order to achieve the above object, the mass of a member which collides by magnetic attractive force is reduced to reduce the noise to be generated. The thus configured present invention provides the following advantageous effects. The noise generated when a core (33) and an anchor (31b) collide with each other by magnetic attractive force depends on the magnitude of the kinetic energy of a moving element. The kinetic energy to be consumed in the collision is only the kinetic energy of the anchor. The kinetic energy of a rod, being absorbed by a spring, does not contribute to the noise; thus, the energy when the anchor and the core collide with each other can be reduced, whereby the noise to be created can be reduced.
摘要翻译：为了减少由设置在高压燃料供给泵上的电磁吸入阀（39）的运转产生的碰撞噪声。在本发明中，为了实现上述目的，减小了与吸引力相撞的部件的质量，以减少产生的噪音。由此构成的本发明提供以下有益效果。当芯（33）和锚（31b）通过磁吸引力相互碰撞时产生的噪声取决于移动元件的动能的大小。在碰撞中消耗的动能只是锚的动能。由弹簧吸收的杆的动能对噪声无影响; 因此，可以减少锚和芯彼此碰撞时的能量，从而可以减少要产生的噪声。

6. 发明授权

EP2487360B1 HIGH-PRESSURE FUEL PUMP 有权转让
标题翻译： HOCHDRUCKBRENNSTOFFFPUMPE
公开(公告)号：EP2487360B1
公开(公告)日：2015-03-11
申请号：EP10821799.3
申请日：2010-08-17
申请人： Hitachi Automotive Systems, Ltd.
发明人： HASHIDA, Minoru , YAMADA, Hiroyuki , SUGANAMI, Masayuki , TAKAHASHI, Sunao , ONOSE, Toru , YAMAUCHI, Hideaki , ISHIGE, Kazuichi
IPC分类号： F02M59/44 , F02M59/10
CPC分类号： F02M59/102 , F02M59/025 , F02M59/44 , F02M59/442 , F04B1/0408 , F04B1/0426
摘要： In a conventional high-pressure fuel pump, the interference fit part between a plunger and a retainer comes loose with time due to environmental factors and this reduces the clearance between the retainer and a tappet more than necessity, resulting in increase in the contact face pressure between the plunger and a cylinder when a side force acts on the plunger, which causes seizure between the plunger and the cylinder. In this invention, a protrusion protruding toward the tappet is provided around the through-hole for press-fitting the plunger, the through-hole provided in the center portion of the retainer. Since the clearance between the retainer and the tappet can sufficiently be kept even if the joint between the retainer and the plunger comes loose, the seizure between the plunger and the cylinder and the breakage of the plunger are less likely to occur even if the side force acts on the retainer.

7. 发明授权

EP3441607B1 HIGH-PRESSURE FUEL SUPPLY PUMP HAVING ELECTROMAGNETICALLY-DRIVEN INTAKE VALVE 有权转让
公开(公告)号：EP3441607B1
公开(公告)日：2020-03-18
申请号：EP18188512.0
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： F02M63/00 , F02M59/36 , F04B49/24

8. 发明公开

EP3228859A1 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油供给泵
公开(公告)号：EP3228859A1
公开(公告)日：2017-10-11
申请号：EP17168029.1
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
CPC分类号： F02M63/0035 , F02M59/367 , F02M59/368 , F02M63/0017 , F02M63/0019 , F02M2200/315 , F02M2200/8061 , F04B49/243
摘要： It is an object of the present invention to 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，从而使泵的尺寸减小。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包括环形抵靠表面203R，该环形抵靠表面203R抵靠形成在阀壳体214中的阀座214S，以切断燃料进入通道;以及设置在环形抵靠表面203R的内周边部分处的有底圆筒形部分203F，203H 。有底圆筒部203F，203H插入到形成于阀座214内的阀座214S内的燃料导入孔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到阀壳体214。由此，能够缩短从阀座214S的表面向压力室侧突出的阀导件SG的大小。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。

9. 发明公开

EP3021477A1 INVERTER DEVICE AND ELECTRIC VEHICLE 有权转让
标题翻译： ECHKELRICHTERVORRICHTUNG ELEKTROFAHRZEUG
公开(公告)号：EP3021477A1
公开(公告)日：2016-05-18
申请号：EP14822715.0
申请日：2014-05-21
申请人： Hitachi Automotive Systems, Ltd.
发明人： AJIMA, Toshiyuki , FURUKAWA, Kimihisa , MYOEN, Kohei , YAMADA, Hiroyuki
IPC分类号： H02P6/08 , B60L9/18 , H02P21/00 , H02P27/04
CPC分类号： H02P27/08 , B60L11/14 , B60L11/1803 , B60L11/1868 , B60L15/007 , B60L15/08 , B60L2210/40 , B60L2240/421 , B60L2240/423 , B60L2240/526 , B60L2240/527 , B62D5/046 , H02M7/5395 , H02M2007/4803 , Y02T10/644 , Y02T10/645 , Y02T10/70 , Y02T10/7005 , Y02T10/7066 , Y02T10/7077 , Y02T10/7241 , Y10S903/904
摘要： Provided are an inverter device deterring PWM voltage error even if high inverter output frequencies are used for overmodulation driving and an electric vehicle equipped with the inverter device. In an angular section where the output voltage from an inverter device (100) is linearly approximated with the zero cross point as the center thereof, a PWM generator (140) in the inverter device (100) changes either the time interval between the centers of PWM ON pulses or the time interval between the centers of PWM OFF pulses depending on the inverter operation state. An electric vehicle is equipped with the inverter device (100), which drives a motor (300).
摘要翻译：提供一种逆变器装置，即使用于过调制驱动的高逆变器输出频率以及配备有逆变器装置的电动车辆也能够抑制PWM电压误差。在来自逆变器装置（100）的输出电压以零交叉点作为其中心线性近似的角部分中，逆变器装置（100）中的PWM发生器（140）改变中心之间的时间间隔 PWM导通脉冲或PWM OFF脉冲中心之间的时间间隔取决于变频器运行状态。电动车配备有驱动马达（300）的逆变器装置（100）。

10. 发明公开

EP2487360A1 HIGH-PRESSURE FUEL PUMP 有权转让
标题翻译：高压燃油泵
公开(公告)号：EP2487360A1
公开(公告)日：2012-08-15
申请号：EP10821799.3
申请日：2010-08-17
申请人： Hitachi Automotive Systems, Ltd.
发明人： HASHIDA, Minoru , YAMADA, Hiroyuki , SUGANAMI, Masayuki , TAKAHASHI, Sunao , ONOSE, Toru , YAMAUCHI, Hideaki , ISHIGE, Kazuichi
IPC分类号： F02M59/44 , F02M59/10
CPC分类号： F02M59/102 , F02M59/025 , F02M59/44 , F02M59/442 , F04B1/0408 , F04B1/0426
摘要： In a conventional high-pressure fuel pump, the interference fit part between a plunger and a retainer comes loose with time due to environmental factors and this reduces the clearance between the retainer and a tappet more than necessity, resulting in increase in the contact face pressure between the plunger and a cylinder when a side force acts on the plunger, which causes seizure between the plunger and the cylinder. In this invention, a protrusion protruding toward the tappet is provided around the through-hole for press-fitting the plunger, the through-hole provided in the center portion of the retainer. Since the clearance between the retainer and the tappet can sufficiently be kept even if the joint between the retainer and the plunger comes loose, the seizure between the plunger and the cylinder and the breakage of the plunger are less likely to occur even if the side force acts on the retainer.
摘要翻译：在传统的高压燃料泵中，由于环境因素的原因，柱塞和保持器之间的过盈配合部分随时间而松动，并且这使得保持器与挺杆之间的间隙减小超过必要，导致接触面压力当侧向力作用在柱塞上时柱塞和柱体之间产生咬合，这引起柱塞和柱体之间的咬合。在本发明中，在用于压入柱塞的贯通孔的周围设置向挺杆突出的突起，该贯通孔设置在保持器的中央部。由于即使保持器和柱塞之间的接头松动，保持器和挺杆之间的间隙也可以被充分地保持，所以即使侧向力也不易发生柱塞和缸体之间的卡住以及柱塞的断裂作用于保持器。

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