公开(公告)号：US07017601B2

公开(公告)日：2006-03-28

申请号：US10459510

申请日：2003-06-12

申请人： Hidehiro Soga ,  Kenji Nakao ,  Kouichi Ojima ,  Yuji Bando

发明人： Hidehiro Soga ,  Kenji Nakao ,  Kouichi Ojima ,  Yuji Bando

IPC分类号： F16K49/00

CPC分类号： F15B13/044 ,  Y10T137/6552 ,  Y10T137/87217

摘要： An electromagnetic valve of a reduced size capable of suppressing temperature rise of a coil regardless of continuous electrical energization over an extended time while preventing attracting force from lowering includes a coil cooling fluid passage (9a; 8a; 4a) for communicating a coil cooling fluid sump space (2a) with a controlled pressure region for allowing a fluid to flow into the coil cooling fluid sump space (2a) from the controlled pressure region. The coil cooling fluid passage includes a small-diameter communicating passage portion (9a) provided so as not to exert influence to a hydraulic pressure prevailing in the controlled pressure region.

摘要翻译： 一种减小尺寸的电磁阀，不管延长时间内的持续电通电，同时防止吸引力降低，都能够抑制线圈的温度上升，包括：线圈冷却流体通道（9a; 8a; 7a），用于使线圈 具有受控压力区域的冷却液体贮槽空间（2a），用于允许流体从受控压力区域流入线圈冷却液体贮槽空间（2a）。 线圈冷却流体通道包括设置成不对受控压力区域中存在的液压产生影响的小直径连通通道部分（9a）。

公开(公告)号：US06874751B2

公开(公告)日：2005-04-05

申请号：US10443868

申请日：2003-05-23

申请人： Kouichi Ojima ,  Kenji Nakao ,  Hidehiro Soga

发明人： Kouichi Ojima ,  Kenji Nakao ,  Hidehiro Soga

IPC分类号： F16K31/06 ,  G05D16/20 ,  F02M59/96 ,  F02M63/00 ,  F16K31/02

CPC分类号： F16K31/0637 ,  G05D16/2013

摘要： An electromagnetic valve (100) which can ensure a predetermined response behavior while sustaining a desired control performance with operation noise being suppressed even after operation over an extended time includes a plunger assembly (15) having a plunger (7), a coil (2) for driving the plunger (7), a fixed core (4) disposed in a direction in which the plunger (7) is displaced for attracting the plunger assembly (15) to a retracted position upon electrical energization of the coil (2) to thereby hold the plunger at that position, a resilient member (8) disposed, being compressed, between the plunger (7) and the fixed core (4) to resiliently urge the plunger assembly (15) to an advanced position, and a spacer (9; 39) interposed between the plunger (7) and the fixed core (4). The spacer (9; 29; 39; 49) is provided with a protrusion (9a; 29a).

摘要翻译： 一种电磁阀（100），其能够在维持期望的控制性能的同时确保预定的响应行为，即使在延长的时间内操作之后也抑制了操作噪声，包括具有柱塞（7），线圈（2）的柱塞组件（15） 为了驱动所述柱塞（7），在所述线圈（2）的电通电时沿着所述柱塞（7）移动的方向设置以将所述柱塞组件（15）吸引到缩回位置的固定铁心（4） 将所述柱塞保持在所述位置，弹性构件（8）被设置成在所述柱塞（7）和所述固定芯体（4）之间被压缩，以将所述柱塞组件（15）弹性地推动到前进位置，以及间隔件 ; 39）插入在所述柱塞（7）和所述固定芯（4）之间。 间隔件（9; 29; 39; 49）设置有突起（9a; 29a）。

公开(公告)号：US10411542B2

公开(公告)日：2019-09-10

申请号：US14423172

申请日：2012-10-15

申请人： Tadashi Murakami ,  Kouichi Ojima ,  Masaya Inoue

发明人： Tadashi Murakami ,  Kouichi Ojima ,  Masaya Inoue

IPC分类号： H02K3/50 ,  H02G5/06 ,  H02K3/28 ,  H02K3/38

摘要： Provided is a fixing structure for fixing a wire connection plate including a busbar (9) having an annular shape, and a wire connection plate holder (10) for holding the busbar (9). The fixing structure includes a frame (5) having a cylindrical shape, for accommodating the wire connection plate therein, and a sheet metal member (12) for fixing the wire connection plate. One end of the sheet metal member (12) is fixed on a flange (4) of the frame (5), and another end of the sheet metal member (12) presses an end surface of the wire connection plate in an axial direction of the frame (5), to thereby fix the wire connection plate. The wire connection plate is fixed by elasticity of the sheet metal member (12), and hence the wire connection plate can be held even under application of impact load.

公开(公告)号：US06213094B1

公开(公告)日：2001-04-10

申请号：US09480664

申请日：2000-01-11

申请人： Yoshihiko Onishi ,  Kouichi Ojima ,  Takemi Arima ,  Hideki Morikaku

发明人： Yoshihiko Onishi ,  Kouichi Ojima ,  Takemi Arima ,  Hideki Morikaku

IPC分类号： F02M3700

CPC分类号： F04B53/1037 ,  F02M59/462 ,  F02M59/464 ,  F02M63/0225 ,  F04B11/0016 ,  F04B11/0091

摘要： In a high-pressure fuel pump, a back-pressure chamber connected to a high-pressure fuel discharge passage is formed in a casing facing a central portion of a first plate.

摘要翻译： 在高压燃料泵中，与面对第一板的中心部的壳体形成有与高压燃料排出路连通的背压室。

公开(公告)号：US08970077B2

公开(公告)日：2015-03-03

申请号：US13452398

申请日：2012-04-20

申请人： Tadashi Murakami ,  Kouichi Ojima ,  Masaya Inoue

发明人： Tadashi Murakami ,  Kouichi Ojima ,  Masaya Inoue

IPC分类号： H02K9/22 ,  H02K1/18 ,  H02K1/14

CPC分类号： H02K1/185 ,  H02K1/148 ,  H02K9/22 ,  H02K2201/03

摘要： A rotary electric machine includes a rotor, a stator having coils wound to surround the rotor, a cylindrical ring member fixedly mounted on the stator by shrinkage fitting, and a frame disposed on the outside of the ring member with a gap created in between. The distance of the gap varies as a result of thermal expansion of the stator and the ring member. An outer surface of the ring member goes into contact with the frame when the stator and the ring member thermally expand, whereby the stator and the ring member are efficiently cooled.

摘要翻译： 旋转电机包括转子，具有围绕转子卷绕的线圈的定子，通过收缩配合固定地安装在定子上的圆柱形环构件，以及设置在环件的外侧上的间隙，其间形成有间隙。 间隙的距离由于定子和环件的热膨胀而变化。 当定子和环件热膨胀时，环件的外表面与框架接触，从而有效地冷却定子和环件。

公开(公告)号：US06644287B2

公开(公告)日：2003-11-11

申请号：US10118159

申请日：2002-04-09

申请人： Yoshihiko Onishi ,  Kouichi Ojima ,  Yuta Ichinose

发明人： Yoshihiko Onishi ,  Kouichi Ojima ,  Yuta Ichinose

IPC分类号： F02M3704

CPC分类号： F02M59/44 ,  F02M37/10 ,  F02M55/04 ,  F02M63/0225 ,  F04B1/0452

摘要： There is provided a high pressure fuel supply apparatus including a plunger reciprocating in a sleeve of a high pressure fuel pump so as to form a fuel pressurizing chamber between the plunger and the sleeve, a first plate having a fuel suction port for sucking fuel into the fuel pressurizing chamber and a fuel discharge port for discharging the fuel from the fuel pressurizing chamber, and a suction valve provided in the fuel suction port, the first plate, the suction valve and a flange portion of the sleeve being held between a casing and an end surface of a spring guide constituting the high pressure fuel pump.

公开(公告)号：US06575718B2

公开(公告)日：2003-06-10

申请号：US09941772

申请日：2001-08-30

申请人： Yoshihiko Onishi ,  Kouichi Ojima

发明人： Yoshihiko Onishi ,  Kouichi Ojima

IPC分类号： F04B3910

CPC分类号： F02M55/04 ,  F02M63/0225 ,  F02M2200/315 ,  F04B53/1047

摘要： A high pressure fuel supply apparatus includes a cylinder defining a compression chamber, a piston supported for sliding movement in the cylinder, and a valve communicating with the compression chamber. The valve includes a valve seat having a valve hole formed therein and a reed movable between an open and a closed position to open and close the valve hole. The reed has a head with an outer periphery in surface contact with the valve seat when the reed is in its closed position, and a bulge surrounded by the outer periphery and extending away from the valve hole and disposed on the valve hole when the 0reed is in its closed position.

摘要翻译： 高压燃料供给装置包括限定压缩室的气缸，支撑在气缸中滑动的活塞以及与压缩室连通的阀。 所述阀包括阀座，所述阀座具有形成在其中的阀孔，以及可在打开和关闭所述阀孔的打开和关闭位置之间移动的簧片。 当簧片处于其关闭位置时，簧片具有与阀座表面接触的外周的头部，以及当外圈周围并由阀孔延伸并且在阀孔处延伸时设置在阀孔上的凸起 处于关闭状态。

公开(公告)号：US06546918B2

公开(公告)日：2003-04-15

申请号：US09922724

申请日：2001-08-07

申请人： Yoshihiko Onishi ,  Kouichi Ojima ,  Hiromichi Tsugami ,  Shigeki Uno ,  Hiroaki Ikeda

发明人： Yoshihiko Onishi ,  Kouichi Ojima ,  Hiromichi Tsugami ,  Shigeki Uno ,  Hiroaki Ikeda

IPC分类号： F02M3704

CPC分类号： F02D41/3845 ,  F02D41/1402 ,  F02D41/1462 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/0602 ,  F02D2250/31 ,  F02M37/0041 ,  F02M37/0052 ,  F02M37/10 ,  F02M59/366 ,  F02M63/0225 ,  F04B49/24

摘要： A variable delivery type fuel supply apparatus capable of suppressing variation of fuel pressure within a delivery pipe and hence variation of fuel quantity injected through fuel injection valves and simplifying a control method therefor. The apparatus includes an oil relief passage (6) provided between the suction port of a fuel pump (4) and a pressurizing chamber (4e) across a suction valve (4a) of the fuel pump (4), an electromagnetic valve (7) disposed in the oil relief passage (6) and opened for a predetermined time during a discharge stroke of the fuel pump (4) for thereby controlling a discharge quantity of the fuel pump (4), and a control unit (108) for controlling the timing at which the electromagnetic valve (7) is opened. The control unit (108) is so designed as to control open/close operations of the electromagnetic valve (7) such that a time point for starting electrical energization of the electromagnetic valve (7) is fixedly set at a predetermined time point relative to the suction/discharge stroke of the fuel pump (4) while allowing the time point for terminating the electrical energization to be variable, to thereby control the discharge quantity of the fuel pump (4).

公开(公告)号：US07677479B2

公开(公告)日：2010-03-16

申请号：US12111473

申请日：2008-04-29

申请人： Kazunori Kitagawa ,  Kouichi Ojima ,  Yoshihiko Onishi

发明人： Kazunori Kitagawa ,  Kouichi Ojima ,  Yoshihiko Onishi

IPC分类号： F02M51/06

CPC分类号： F02M51/0653 ,  F02M61/168 ,  Y10T29/49314 ,  Y10T29/49405

摘要： When a fuel injection valve is mounted on an engine, a distance between a core and an armature during non-energization of a coil can be prevented from becoming narrow. The coil is arranged inside the core, and a body is fixedly secured at its one end to an end of the core. A housing is arranged outside the coil with its one end abutting a cylinder head. A cap is arranged at the other end of the housing, and abuts at its side opposite to the housing with a fastening unit. The armature is arranged for reciprocation inside the body, and is magnetically attracted to the magnetized core. A gap is formed between the housing and the body, with the cap and the core being fixed to each other, and upon mounting the valve on the engine, the housing and the fastening unit abut the cylinder head and the cap, respectively.

摘要翻译： 当燃料喷射阀安装在发动机上时，可以防止在线圈不通电期间铁芯和电枢之间的距离变窄。 线圈布置在芯部内部，并且主体在其一端固定地固定到芯的端部。 线圈外侧设有一个壳体，其一端邻接气缸盖。 盖子设置在壳体的另一端，并且用紧固单元与壳体的相对侧邻接。 电枢被布置用于在体内往复运动，并被磁力吸引到磁化的磁芯。 在壳体和主体之间形成间隙，其中盖和芯彼此固定，并且在将阀安装在发动机上时，壳体和紧固单元分别抵靠气缸盖和盖。

公开(公告)号：US06871836B1

公开(公告)日：2005-03-29

申请号：US10111195

申请日：2000-08-24

申请人： Yoshihiko Onishi ,  Kouichi Ojima

发明人： Yoshihiko Onishi ,  Kouichi Ojima

IPC分类号： F02M55/04 ,  F02M59/36 ,  F02M59/46 ,  F02M63/02 ,  F04B49/24 ,  F16K31/06 ,  F16K31/02

CPC分类号： F16K31/0658 ,  F02M55/04 ,  F02M59/366 ,  F02M59/466 ,  F02M63/0225 ,  F04B49/24

摘要： The object of the present invention is to provide an electromagnetic valve for a variable discharge fuel supply apparatus with improved relief property and high-responsiveness, a small electromagnetic valve, reduced electric current consumption and increased responsiveness, wherein the valve seat has a valve seating surface present in a flat surface facing the direction of movement of the valve at substantially right angle, and the valve is provided with a flow path formed within the valve and a substantially ring-shaped flat landing surface that encircles the flow path within the valve and closes the flow path by coming into contact with the valve seating surface. The electromagnetic valve may be made to cause the outside of the valve to serve as a high pressure side and the flow path within the valve, as a low pressure side, and to cause both the landing surface of the valve and the valve seating surface of the valve seat to be in ring-shaped so that the valve and the valve seat come into contact only through the space between the outer boundary of the landing surface of the valve and the inner boundary of the valve seating surface of the valve seat. Further, the flow path may be formed in a place where it passes the vicinity of said electromagnetic solenoids at the downstream section of the valve. In addition, the flow path within the valve may extend piercing the valve to reach as far as the vicinity of the solenoid coils, and may be connected to the fuel flow path that is formed in the space between the valve outer boundary and the valve holder inner boundary and linked to the low pressure side, and the valve seat having the valve seating surface may be a part formed separately from the valve holder instead of the one united to the valve holder.

摘要翻译： 本发明的目的是提供一种具有改进的释放特性和高响应性的可变排放燃料供应装置的电磁阀，小的电磁阀，降低的电流消耗和增加的响应性，其中阀座具有阀座表面 存在于面向阀的运动方向基本上成直角的平坦表面中，并且阀设置有形成在阀内的流路和围绕阀内的流动通道并闭合的大致环形的平坦着陆面 通过与阀座表面接触的流动路径。 可以使电磁阀使得阀的外部作为高压侧和阀内的流动路径作为低压侧，并且使阀和阀座面的两端 阀座为环状，使得阀和阀座仅通过阀的着陆面的外边界与阀座的阀座表面的内边界之间的空间接触。 此外，流路可以形成在其通过阀的下游部分处的所述电磁螺线管附近的位置。 此外，阀内的流路可以延伸穿刺阀到达螺线管线圈附近，并且可以连接到形成在阀外边界和阀保持器之间的空间中的燃料流动路径 内部边界并连接到低压侧，并且具有阀座表面的阀座可以是与阀保持器分开形成的部分，而不是与阀保持器结合的部分。