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1. 发明授权

US5820358A Clearance means to prevent fuel leakage in a radial piston pump 失效
标题翻译：间隙意味着防止径向活塞泵中的燃料泄漏
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。

2. 发明授权

US5630708A Radial piston pump for low-viscosity fuel 失效
标题翻译：用于低粘度燃料的径向活塞泵
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。

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