公开(公告)号：US5820358A

公开(公告)日：1998-10-13

申请号：US562250

申请日：1995-11-22

申请人： Takeo Kushida ,  Fujio Aoki ,  Takayuki Ikeda ,  Koichiro Futamase ,  Tomoharu Sato ,  Hideya Kikuchi ,  Ken Sato ,  Nobuo Aoki ,  Katsuhiko Tsukazaki

发明人： Takeo Kushida ,  Fujio Aoki ,  Takayuki Ikeda ,  Koichiro Futamase ,  Tomoharu Sato ,  Hideya Kikuchi ,  Ken Sato ,  Nobuo Aoki ,  Katsuhiko Tsukazaki

IPC分类号： F04B1/04 ,  F04B1/047 ,  F04B1/053 ,  F04B9/00 ,  F04B17/00

CPC分类号： F04B1/0448

摘要： A pump for low-viscosity fuel comprises a pump shaft 6 installed in a pump housing 2, 3, 4 and divided into a drive-side shaft 6A and a driven-side shaft 6B, a partition 12 provided between the drive-side shaft and the driven-side shaft of the pump shaft to prevent leakage of fuel from the housing, and a magnetic coupling 13 for transferring torque from the drive-side shaft to the driven-side shaft of the pump shaft through the partition, the magnetic coupling being disposed such that a first clearance C1, D1 between the magnetic coupling and the partition is larger than a second clearance C2, D2 between the magnetic coupling and the pump housing. When wobble occurs in the pump shaft owing to wear of the sliding contact portions thereof, the magnetic coupling makes contact with the pump housing before contacting the partition, thereby enabling the rotation of the pump shaft to be stopped before fuel leakage occurs.

摘要翻译： 用于低粘度燃料的泵包括安装在泵壳体2,3,4中并被分成驱动侧轴6A和从动侧轴6B的泵轴6，设置在驱动侧轴和驱动侧轴6A之间的隔板12 泵轴的从动轴轴，以防止燃料从壳体泄漏;以及磁耦合器13，用于通过分隔件将扭矩从驱动侧轴传递到泵轴的从动侧轴，磁耦合 被布置成使得磁耦合器和分隔件之间的第一间隙C1，D1大于磁耦合器和泵壳体之间的第二间隙C2，D2。 当由于其滑动接触部分的磨损而在泵轴中发生摆动时，磁性联轴器在接触隔板之前与泵壳体接触，从而使得能够在发生燃料泄漏之前停止泵轴的旋转。

公开(公告)号：US4905961A

公开(公告)日：1990-03-06

申请号：US331855

申请日：1989-04-03

申请人： Kouji Ichihashi ,  Jun-ichi Tani ,  Katsuhiko Tsukazaki ,  Hiroshi Sakuyama ,  Nobuo Baba ,  Kiyoji Nakajima ,  Takaaki Arai ,  Akira Inaba

发明人： Kouji Ichihashi ,  Jun-ichi Tani ,  Katsuhiko Tsukazaki ,  Hiroshi Sakuyama ,  Nobuo Baba ,  Kiyoji Nakajima ,  Takaaki Arai ,  Akira Inaba

IPC分类号： F16K31/06 ,  H01F7/16

CPC分类号： H01F7/1607 ,  F16K31/406

摘要： An electromagnetic actuator includes a housing and a pair of stators cooperating with the housing to form a magnetic circuit for a solenoid. Each of the pair of stators has a tubular portion, and the tubular portions of the pair of stators have their one ends disposed in the opposed spaced relation to each other. The solenoid is mounted around the tubular portions of the pair of stators, and an armature is received in the tubular portions of the pair of stators so as to be movable along the axis of the tubular portions. The armature is supplied with a force when an electric current is applied to the solenoid. In order to keep the magnetic resistance of the magnetic circuit to a low level, one of the pair of stators is formed integrally with one end of a tubular body of the housing so that the housing and the one stator constitute a unitary member.

摘要翻译： 电磁致动器包括壳体和与壳体配合的一对定子，以形成螺线管的磁路。 一对定子中的每一个具有管状部分，并且一对定子的管状部分的一端以彼此相对的间隔设置。 螺线管安装在一对定子的管状部分周围，电枢被容纳在一对定子的管状部分中，以便能够沿管状部分的轴线移动。 当向电磁线圈施加电流时，电枢被施加力。 为了将磁路的磁阻保持在低水平位置，一对定子中的一个与壳体的管状体的一端一体地形成，使得壳体和一个定子构成一体的构件。

公开(公告)号：US5630708A

公开(公告)日：1997-05-20

申请号：US364857

申请日：1994-12-27

申请人： Takeo Kushida ,  Fujio Aoki ,  Takayuki Ikeda ,  Koichiro Futamase ,  Tomoharu Sato ,  Hideya Kikuchi ,  Ken Sato ,  Nobuo Aoki ,  Katsuhiko Tsukazaki

发明人： Takeo Kushida ,  Fujio Aoki ,  Takayuki Ikeda ,  Koichiro Futamase ,  Tomoharu Sato ,  Hideya Kikuchi ,  Ken Sato ,  Nobuo Aoki ,  Katsuhiko Tsukazaki

IPC分类号： F04B1/053 ,  F04B53/10 ,  F04B53/22

CPC分类号： F04B53/1047 ,  F04B1/053 ,  F04B53/109 ,  F04B53/22

摘要： A radial piston pump for low-viscosity fuel according to a first aspect of the invention comprises a pump housing, which is constituted of as few as two structural bodies (from among a drive-side housing member 2A, a fixed cylinder 81 and a cover 4), and a leaf valve member 82 which is formed with intake valves 87 for opening and closing intake side passages 27 and discharge valves 88 for opening and closing discharge side passages 28 and is sandwiched between two structural bodies (fixed cylinder 81 and cover 4). The first aspect of the invention reduces the number of components constituting the pump housing, enables highly precise overall axial alignment, prevents wobbling of a pump shaft 9 of the pump, increases performance and reliability and reduces cost. A radial piston pump for low-viscosity fuel according to a second aspect of the invention comprises a leaf valve member 205 formed in one and the same plane thereof with overflow ports communicating with an overflow passage 59 in the pump housing, intake valves 87 communicating with intake side passages 27 and discharge valves 88 communicating with discharge side passages 28. The third aspect of the invention provides a method for assembling the radial piston pump for low-viscosity fuel according to the second aspect of the invention.

摘要翻译： 根据本发明的第一方面的用于低粘度燃料的径向柱塞泵包括泵壳体，其由少至两个结构体（从驱动侧壳体构件2A，固定气缸81和盖子 形成有用于打开和关闭进气侧通道27的进气门87和用于打开和关闭排出侧通道28的排出阀88并且被夹在两个结构体（固定缸81和盖4）之间的叶片阀构件82 ）。 本发明的第一方面减少了构成泵壳体的部件的数量，使得能够进行高精度的总体轴向对准，防止泵的泵轴9摆动，提高了性能和可靠性并降低了成本。 根据本发明第二方面的用于低粘度燃料的径向柱塞泵包括在其一个同一平面中形成有与泵壳体中的溢流通道59连通的溢流口的叶片阀件205，进气门87与 进气侧通道27和与排出侧通道28连通的排出阀88.本发明的第三方面提供一种组装根据本发明第二方面的用于低粘度燃料的径向活塞泵的方法。

公开(公告)号：US4926906A

公开(公告)日：1990-05-22

申请号：US303656

申请日：1989-01-30

申请人： Kouji Ichihashi ,  Junichi Tani ,  Katsuhiko Tsukazaki ,  Hiroshi Sakuyama ,  Nobuo Baba ,  Kiyoji Nakajima ,  Takaaki Arai ,  Akira Inaba

发明人： Kouji Ichihashi ,  Junichi Tani ,  Katsuhiko Tsukazaki ,  Hiroshi Sakuyama ,  Nobuo Baba ,  Kiyoji Nakajima ,  Takaaki Arai ,  Akira Inaba

IPC分类号： F16K11/07

CPC分类号： F16K11/0708 ,  Y10T137/8671 ,  Y10T137/86734

摘要： A spool valve has a valve housing with a valve bore formed therein, a spool having a land portion slidably accommodated in the valve bore, a control port formed within the valve housing, able to communicate with the valve bore, and opened and closed by the land portion, and an annular groove open at an inner peripheral surface of the valve bore and communicating with the control port. Part of the control port is open over the inner and outer parts, as taken in the widthwise direction, of the annular groove. The degree of opening of the port is variably controlled by the displacement of the land portion.

摘要翻译： 滑阀具有其中形成有阀孔的阀壳体，具有可滑动地容纳在阀孔中的接合部分的阀芯，形成在阀壳体内的控制口，其能够与阀孔连通，并且由阀孔打开和关闭 以及在阀孔的内周面开口并与控制口连通的环状槽。 控制端口的一部分在环形槽的宽度方向上沿着内部和外部部分开口。 通过陆部的位移可变地控制端口的开度。