公开(公告)号：US5744881A

公开(公告)日：1998-04-28

申请号：US544030

申请日：1995-10-17

申请人： Yutaka Ishizuka ,  Koichi Katakura

发明人： Yutaka Ishizuka ,  Koichi Katakura

IPC分类号： G11B19/20 ,  H02K1/27 ,  H02K15/03 ,  H02K7/00

CPC分类号： H02K1/2786 ,  G11B19/2009 ,  H02K15/03

摘要： A drive magnet unit is fixedly mounted on the inner cylindrical surface of the cylindrical portion of a rotor yoke which is fixedly mounted on a hub, in such a manner that the drive magnet unit confronts a stator core. The rotor yoke has an annular portion along its open end. The rotor yoke has a curved portion along the open end which forms a gap with the outer cylindrical surface of the drive magnet unit. The annular portion is sheared along its base, thus forming a shear plane. The inner surface of the bottom of the rotor yoke, and the inner cylindrical surface of the cylindrical portion of the rotor yoke form a right-angled portion with which the right-angled outer edge portion of the drive magnet unit is engaged. The peripheral surface of the right-angled portion defines a through-hole in the bottom which is engaged with the hub. The gap is filled with adhesive, to fixedly secure the drive magnet unit to the rotor yoke.

摘要翻译： 驱动磁体单元固定地安装在固定地安装在轮毂上的转子轭的圆柱形部分的内圆柱表面上，使得驱动磁体单元面对定子芯。 转子轭具有沿其开口端的环形部分。 转子轭具有沿着开口端的弯曲部分，其与驱动磁体单元的外圆柱形表面形成间隙。 环形部分沿其基部剪切，从而形成剪切平面。 转子轭的底部的内表面和转子轭的圆柱形部分的内圆柱形表面形成与驱动磁体单元的直角外缘部接合的直角部分。 直角部分的周边表面在底部限定了与轮毂接合的通孔。 间隙填充有粘合剂，以将驱动磁体单元牢固地固定到转子轭。

公开(公告)号：US5686771A

公开(公告)日：1997-11-11

申请号：US457812

申请日：1995-06-01

申请人： Yutaka Ishizuka ,  Koichi Katakura

发明人： Yutaka Ishizuka ,  Koichi Katakura

IPC分类号： H02K29/00 ,  H02K5/173 ,  H02K21/22 ,  H02K7/08

CPC分类号： H02K5/1737 ,  F16C35/06

摘要： In an electric motor, its motor frame has a shaft hole, a shaft is fitted in the shaft hole in such a manner that its one end potion is in the shaft hole while the other end portion is extended outside the motor frame. The motor frame includes a bearing-receiving portion extended therefrom in such a manner that the bearing-receiving portion confronts with the inner race of a rolling bearing fitted on the end portion of the shaft, and has a wall surface which merges with the wall surface of the shaft hole. The shaft has a groove which is covered by a part of the inner cylindrical surface of the inner race of the ball bearing and by the wall surface of the protruded portion. The inner raced is fixedly secured to the shaft with adhesive.

摘要翻译： 在电动机中，其电动机架具有轴孔，轴以其一端部位于轴孔内而另一端部延伸到电动机架外部的方式安装在轴孔中。 马达框架包括从其延伸的轴承接收部分，使得轴承接收部分与安装在轴的端部上的滚动轴承的内圈面对，并且具有与壁面合并的壁面 的轴孔。 轴具有由球轴承的内圈的内圆筒形表面的一部分和突出部的壁面覆盖的槽。 内圈由粘合剂固定在轴上。

公开(公告)号：US5661588A

公开(公告)日：1997-08-26

申请号：US523055

申请日：1995-09-01

申请人： Yutaka Ishizuka ,  Koichi Katakura

发明人： Yutaka Ishizuka ,  Koichi Katakura

IPC分类号： G02B26/12 ,  G02B26/08

CPC分类号： G02B26/121 ,  F16C35/06

摘要： A rotary polygon mirror type light deflecting system including a mirror, a hub, and a fixed shaft made of materials whose coefficients of linear expansion are equal to one another. A fixed shaft is erected integrally with a frame. Inner races of ball bearings are secured to the fixed shaft. A stator has a coil wound around a stator core formed contiguously with the frame. A drive magnet annularly surrounding the outer circumferential surface of the stator core and a yoke are fixed to a polygon mirror with a clamper and screws through a hub. The drive magnet, the yoke, and the hub are secured to the fixed shaft and made rotatable by the outer races of the ball bearings secured to the fixed shaft.

摘要翻译： 一种旋转多面镜型光偏转系统，包括由线性膨胀系数彼此相等的材料制成的反射镜，轮毂和固定轴。 固定轴与框架一体地竖立。 球轴承的内圈固定在固定轴上。 定子具有缠绕在与框架相邻形成的定子芯上的线圈。 围绕定子芯的外圆周表面环绕的驱动磁体和磁轭通过夹持器固定在多面镜上并通过毂固定。 驱动磁体，磁轭和轮毂通过固定在固定轴上的球轴承的外圈固定在固定轴上并使之旋转。

公开(公告)号：US5666219A

公开(公告)日：1997-09-09

申请号：US739672

申请日：1996-10-31

申请人： Yutaka Ishizuka ,  Koichi Katakura

发明人： Yutaka Ishizuka ,  Koichi Katakura

IPC分类号： G02B26/12 ,  G02B26/08

CPC分类号： G02B26/121

摘要： Rotary polygon mirror type light deflecting system having a labyrinth ring fixed to an end of a fixed shaft. An outer circumferential surface of a labyrinth ring is caused to confront an inner circumferential surface of a polygon mirror while interposing a small gap therebetween in a radial direction. Further, a lower portion of a circular hole of the polygon mirror is fitted with a cylindrical sleeve of a hub to fix the polygon mirror to the hub. The polygon mirror and the labyrinth ring are made of the same material, e.g., aluminum or an aluminum alloy. The small gap is made as small as possible.

摘要翻译： 旋转多面镜型光偏转系统，其具有固定在固定轴的端部上的迷宫环。 使迷宫环的外周面朝向多面镜的内周面，同时在径向上插入小间隙。 此外，多面镜的圆孔的下部装配有毂的圆筒形套筒，以将多面镜固定到轮毂。 多面镜和迷宫环由相同的材料制成，例如铝或铝合金。 小间隙尽可能小。

公开(公告)号：US5877918A

公开(公告)日：1999-03-02

申请号：US808175

申请日：1997-02-28

申请人： Koichi Katakura ,  Yutaka Ishizuka

发明人： Koichi Katakura ,  Yutaka Ishizuka

IPC分类号： G11B17/028 ,  H02K1/27 ,  G11B17/02

CPC分类号： H02K1/30 ,  H02K1/2786 ,  G11B17/0282

摘要： A disk driving device including a hub which rotatably supports a disk with the aid of bearings, a yoke which is fixedly secured to the hub so as to be turned together with the hub, a drive magnet unit which is fixedly mounted on the inner cylindrical surface of a cylindrical portion of the yoke, and a stator core confronted with the drive magnet unit. In the device, the yoke includes a bent portion and the hub includes a flange which protrudes below and outwardly from a disk mounting portion of the hub and which has an upper surface having an inner diameter substantially equal to an inner diameter of the bent portion of the yoke. The flange is located below a disk mounting portion, and the flange is fixedly held between the inner surface of the bent portion of the yoke and the upper end face of the drive magnet unit.

摘要翻译： 一种盘驱动装置，包括借助于轴承可旋转地支撑盘的轮毂，固定地固定到轮毂以与轮毂一起转动的轭;驱动磁体单元，其固定地安装在内圆柱面上 磁轭的圆筒部分和面对驱动磁体单元的定子铁芯。 在该装置中，轭包括弯曲部分，并且毂包括从毂的盘安装部分的下方和外侧突出的凸缘，该凸缘的上表面的内径基本上等于弯曲部分的内径 轭。 凸缘位于盘安装部分下方，并且凸缘固定地保持在轭的弯曲部分的内表面和驱动磁体单元的上端面之间。

公开(公告)号：US4636153A

公开(公告)日：1987-01-13

申请号：US660773

申请日：1984-10-15

申请人： Yutaka Ishizuka ,  Teruo Nakamura

发明人： Yutaka Ishizuka ,  Teruo Nakamura

IPC分类号： F04C18/344 ,  F01C21/08 ,  F04C18/00

CPC分类号： F01C21/0872

摘要： A rotary compressor has a plurality of vanes which are slidably disposed in radial slots of a rotor to define fluid chambers in cooperation with a cylindrical housing. The radially innermost end of each vane, rotor and opposite ends of the housing define a back-pressure chamber which is supplied with a pressure during a suction stroke for maintaining the associated vane in sealing contact with the inner wall of the housing. Each of opposite ends of the housing has a unique configuration which damps the pressure in the back-pressure chamber when the chamber is fluidly isolated from a source of the pressure supply during a compression stroke, thereby eliminating excessive friction between the vane and the housing.

摘要翻译： 旋转压缩机具有多个叶片，其可滑动地设置在转子的径向槽中，以与圆柱形壳体协作地限定流体室。 每个叶片的径向最内端，转子和壳体的相对端限定了背压室，其在吸入冲程期间被供给压力，以保持相关联的叶片与壳体的内壁密封接触。 壳体的每个相对端具有独特的构造，当压缩冲程中腔室与压力源的源流体隔离时，该构造可抑制背压室中的压力，从而消除叶片和壳体之间的过度摩擦。

公开(公告)号：US4549855A

公开(公告)日：1985-10-29

申请号：US698295

申请日：1985-02-05

申请人： Yutaka Ishizuka ,  Tsunenori Shibuya

发明人： Yutaka Ishizuka ,  Tsunenori Shibuya

IPC分类号： F04B27/14 ,  F04B49/24 ,  F04B1/28 ,  F04B49/08

CPC分类号： F04B49/24

摘要： A swash plate compressor is disclosed which is provided with a compression capacity control apparatus capable of returning an output pressure of a high pressure chamber of one cover to a low pressure chamber of the same cover. The control apparatus comprises a delivery chamber which is communicated with a high pressure chamber of the other cover, isolated from the high pressure chamber of the one cover and connected to a delivery conduit. The control apparatus also comprises a compression capacity control passageway providing communication between the delivery chamber and the low pressure and high pressure chambers of the one cover. A rotary three-way valve member is disposed in the control passageway to interrupt the communication between the delivery chamber and the high pressure chamber of the one cover while establishing communication between the low pressure and high pressure chambers of the one cover. A relief valve is provided to communicate to the delivery chamber an elevated pressure in the compression chamber of the one cover while the rotary valve member shifts from one position to another.

摘要翻译： 公开了一种斜盘式压缩机，其设置有能够将一个盖的高压室的输出压力返回到同一盖的低压室的压缩容量控制装置。 所述控制装置包括与所述另一盖的高压室连通的输送室，所述高压室与所述一个盖的高压室隔离并且连接到输送导管。 控制装置还包括压缩容量控制通道，其提供输送室与一个盖的低压和高压室之间的连通。 旋转三通阀构件设置在控制通道中以中断一个盖的输送室和高压室之间的连通，同时建立一个盖的低压和高压室之间的连通。 提供安全阀，以在旋转阀构件从一个位置移动到另一个位置时与一个盖的压缩室中的压力相通的方式与输送室连通。

公开(公告)号：US4502854A

公开(公告)日：1985-03-05

申请号：US477015

申请日：1983-03-21

申请人： Tsunenori Shibuya ,  Yutaka Ishizuka ,  Teruo Nakamura

发明人： Tsunenori Shibuya ,  Yutaka Ishizuka ,  Teruo Nakamura

IPC分类号： F04C29/00 ,  B60H3/00 ,  F04C18/00 ,  F04C18/344 ,  F04C18/38 ,  F04C29/04 ,  F04C29/12

CPC分类号： F04C29/12

摘要： A vane compressor has a suction connector and a discharge connector arranged at a rear portion thereof. A rear suction chamber is formed at a rear side of the rear side block and communicates with pump working chambers. A passage means directly communicates the above rear suction chamber with an annular front suction chamber formed in the front head in a manner surrounding a sealing chamber accommodating a shaft-seal means.

摘要翻译： 叶片式压缩机具有设置在其后部的抽吸连接器和排出连接器。 后吸入室形成在后侧块的后侧并与泵工作室连通。 通道装置以围绕容纳轴封装置的密封室的方式直接将上述后吸入室与形成在前头中的环形前吸入室连通。

公开(公告)号：US4501537A

公开(公告)日：1985-02-26

申请号：US435233

申请日：1982-10-19

申请人： Yutaka Ishizuka

发明人： Yutaka Ishizuka

IPC分类号： F04C18/344 ,  F01C21/10 ,  F04C2/344 ,  F04C18/00

CPC分类号： F01C21/106 ,  F04C2/3446

摘要： A portion of the endless camming surface of the pump housing, which performs one cycle of suction, compression, and discharge of fluid in cooperation with the vanes and the rotor, includes an increasing radius portion and first through fourth decreasing radius portions successively arranged in the advancing direction of the vanes. These camming surface portions have such cam profiles that with movement of each vane, the amount of protrusion of the vane gradually increases along the increasing radius portion, and gradually decreases along the decreasing radius portions, the receding speed of the vane gradually increasing along the first and third decreasing radius portions, and gradually decreasing along the second and fourth decreasing radius portions. The cam profiles may preferably vary along quadratic curves. Preferably, the above one cycle performing portion further includes one or two constant radius portions located between the above five portions, along which the amount of protrusion of each vane is kept substantially constant with movement of the vane.

摘要翻译： 与叶片和转子一起执行一个循环的流体吸入，压缩和排放的泵壳的一部分环形凸轮表面包括一个增加的半径部分和连续排列在该壳体中的第一至第四个减小半径部分 叶片前进方向。 这些凸轮表面部分具有这样的凸轮轮廓：随着每个叶片的移动，叶片的突出量沿着增加的半径部分逐渐增加，并且沿着减小的半径部分逐渐减小，叶片的后退速度沿第一 和第三减小半径部分，并且沿第二和第四减小半径部分逐渐减小。 凸轮轮廓可以优选地沿着二次曲线变化。 优选地，上述一个循环执行部分还包括位于上述五个部分之间的一个或两个恒定半径部分，每个叶片的突出量在叶片的运动下保持基本上恒定。

公开(公告)号：US4401414A

公开(公告)日：1983-08-30

申请号：US294394

申请日：1981-08-19

申请人： Yutaka Ishizuka

发明人： Yutaka Ishizuka

IPC分类号： F04B39/02 ,  F04B27/08 ,  F04B27/10 ,  F04B1/18

CPC分类号： F04B27/109 ,  F04B27/1009

摘要： A swash-plate type compressor is provided with an oil pumping chamber which communicates with a fluid pumping chamber within which fluid is compressed by a piston, and also provided with a secondary oil reservoir chamber which communicates with an oil feeding bore formed in the drive shaft of the compressor. The oil pumping chamber communicates with a primary oil reservoir chamber through a first oil feeding passageway, and with the secondary oil reservoir chamber through a second oil feeding passageway, respectively. First and second valves are arranged to open and close the first and second oil feeding passageways, respectively, in response to changes in the pressure within the oil pumping chamber.

摘要翻译： 旋转斜盘式压缩机设置有抽油室，其与流体被活塞压缩的流体泵送室连通，并且还设置有二次储油室，该二次储油室与形成在驱动轴中的供油孔连通 的压缩机。 抽油室通过第一供油通道与主要储油室连通，并且分别通过第二供油通道与次级储油室连通。 第一和第二阀被布置成响应于抽油室内的压力变化而分别打开和关闭第一和第二供油通道。