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公开(公告)号：US20050089424A1
公开(公告)日：2005-04-28
申请号：US10766216
申请日：2004-01-29
CPC分类号： F04C23/001 , F04C18/086 , F04C18/126 , F04C2220/12
摘要： A multi-stage vacuum pump includes a plurality of casings connected in series and each casing defining a respective compression chamber, a plurality of partition plates each set in between each two casings. When compressed by rotors at shafts in one compression chamber, compressed air passes through the air path formed in the corresponding partition plate to the next compression chamber for further compression, and finally compressed air passes to the last compression chamber through the air path formed in the last partition plate. Because the invention is designed to let compressed air directly pass through the air path in each partition plate, the outer diameter and volume of the multi-stage vacuum pump can be minimized to reduce the weight and the manufacturing cost.
摘要翻译： 多级真空泵包括串联连接的多个壳体和限定相应的压缩室的每个壳体，每个两个壳体之间设置多个分隔板。 当压缩空气通过一个压缩室中的轴的转子压缩时，压缩空气通过形成在相应隔板中的空气路径进入下一个压缩室，以进一步压缩，最后压缩空气通过形成在 最后一个隔板。 由于本发明旨在使压缩空气直接通过每个隔板中的空气路径，所以可以使多级真空泵的外径和体积最小化，以减轻重量和制造成本。
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公开(公告)号：US10754814B1
公开(公告)日：2020-08-25
申请号：US13334797
申请日：2011-12-22
申请人： Jin Li , Siobhan M. O'Toole , Yi Sun , Nghia C. Tran , Mehmet T. Cezik , Jiun-Hung Chen , Srinivasan Krishnan , Yilun Cui
发明人： Jin Li , Siobhan M. O'Toole , Yi Sun , Nghia C. Tran , Mehmet T. Cezik , Jiun-Hung Chen , Srinivasan Krishnan , Yilun Cui
摘要： A system and method for performing image-based authentication requires users to enter an image-based password in order to access a secure system or network. A user may identify at least one password image, and may enter the system or network if he or she selects each of the password images shown in a group of images on the display. Additionally, the user may designate specific locations for multiple password images on a user interface, and a user may enter the system or network if he or she locates each of the password images in its designated location on the user interface.
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3.发明授权Double screw rotor assembly with electrically controlled clearance adjustment means 失效具有电控间隙调节装置的双螺杆转子组件公开(公告)号：US06257839B1
公开(公告)日：2001-07-10
申请号：US09589127
申请日：2000-06-08
申请人： Hong-Sheng Fang , Ming-Hsin Liu , Jiun-Hung Chen
发明人： Hong-Sheng Fang , Ming-Hsin Liu , Jiun-Hung Chen
IPC分类号： F04B4908
CPC分类号： F04C28/06 , F01C21/102 , F04C18/086 , F04C18/16
摘要： A double screw rotor assembly includes two screw rotors meshed in a bushing inside a casing. The threads of the screw rotors have a constant pitch, and define with the bushing a plurality of air chambers in the pitch. The volumes of the air chambers reduce gradually from the inlet toward the outlet due to reduced tooth height so that the outer diameter defined by the tooth tip of the thread of each screw rotor has the shape of an invertedly disposed cone. An electric driving device is controlled to move the bushing axially in the casing relative to the screw rotors in adjusting the clearance between the inside wall of the bushing and the tooth tip of the thread of each screw rotor, so as to minimize the consumption of starting power and facilitate stable running of the screw rotors, Further, a O-ring is provided at the top wall of the busing and pressed on the casing to keep an airtight status, so as to improve the working efficiency.
摘要翻译： 双螺杆转子组件包括在壳体内的衬套中啮合的两个螺杆转子。 螺杆转子的螺纹具有恒定的间距，并且在衬套中限定了间距中的多个气室。 由于齿高减小，空气室的体积从入口朝向出口逐渐减小，使得由每个螺杆转子的螺纹的齿尖限定的外径具有倒置设置的锥体的形状。 控制电驱动装置，以便在调整衬套的内壁和每个螺杆转子的螺纹的齿顶之间的间隙时相对于螺杆转子轴向移动套管，以便最小化起动消耗 并且促进螺杆转子的稳定运行。此外，O型圈设置在排气的顶壁处并被压在壳体上以保持气密状态，从而提高工作效率。
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公开(公告)号：US06176694B1
公开(公告)日：2001-01-23
申请号：US09372674
申请日：1999-08-12
申请人： Hong-Sheng Fang , Zhang-Hua Fong , Hann-Tsong Wang , Cheng-Chan Tsai , Jiun-Hung Chen , Ming-Fong Chen
发明人： Hong-Sheng Fang , Zhang-Hua Fong , Hann-Tsong Wang , Cheng-Chan Tsai , Jiun-Hung Chen , Ming-Fong Chen
IPC分类号： F03C200
摘要： A power-saving, low-noise double screw rotor assembly, which includes a casing and a pair of screw rotors, wherein the casing has an inside wall defining a compression chamber, an inlet port and an outlet port communicating with the compression chamber. The screw rotors are mounted in the compression chamber and meshed together, each having a spiral thread around the periphery. The thread defines an equidistant pitch. The addendum of the thread defines an outside diameter and is abutted against the inside wall of the casing, the dedendum defines a root diameter. A thread height is defined between the addendum of thread and the dedendum of thread, the thread height gradually reduces in direction from the inlet port toward the outlet port. The dedendum of thread and side walls of the thread of each screw rotor define with the inside wall of the casing at least one transfer chamber having a volume gradually reducing in direction from the inlet port toward the outlet port.
摘要翻译： 一种节能低噪音的双螺杆转子组件，其包括壳体和一对螺杆转子，其中壳体具有限定压缩室的内壁，入口和与压缩室连通的出口。 螺杆转子安装在压缩室中并啮合在一起，每个螺旋转子围绕周边具有螺旋形螺纹。 螺纹定义了等距离的间距。 螺纹的齿顶限定了外径并且抵靠在壳体的内壁上，齿根限定根直径。 在螺纹齿顶和螺纹齿根之间定义螺纹高度，螺纹高度从入口朝向出口方向逐渐减小。 每个螺杆转子的螺纹和侧壁的螺纹和侧壁的齿根限定了壳体的内壁，至少一个传送室具有从入口朝向出口的方向逐渐减小的容积。
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公开(公告)号：US07278839B2
公开(公告)日：2007-10-09
申请号：US10766216
申请日：2004-01-29
CPC分类号： F04C23/001 , F04C18/086 , F04C18/126 , F04C2220/12
摘要： A multi-stage vacuum pump includes a plurality of casings connected in series and each casing defining a respective compression chamber, a plurality of partition plates each set in between each two casings. When compressed by rotors at shafts in one compression chamber, compressed air passes through the air path formed in the corresponding partition plate to the next compression chamber for further compression, and finally compressed air passes to the last compression chamber through the air path formed in the last partition plate. Because the invention is designed to let compressed air directly pass through the air path in each partition plate, the outer diameter and volume of the multi-stage vacuum pump can be minimized to reduce the weight and the manufacturing cost.
摘要翻译： 多级真空泵包括串联连接的多个壳体和限定相应的压缩室的每个壳体，每个两个壳体之间设置多个分隔板。 当压缩空气通过一个压缩室中的轴的转子压缩时，压缩空气通过形成在相应隔板中的空气路径进入下一个压缩室，以进一步压缩，最后压缩空气通过形成在 最后一个隔板。 由于本发明旨在使压缩空气直接通过每个隔板中的空气路径，所以可以使多级真空泵的外径和体积最小化，以减轻重量和制造成本。
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公开(公告)号：US06946062B2
公开(公告)日：2005-09-20
申请号：US10085074
申请日：2002-03-01
申请人： Chun-Hung Lin , Chen-Der Tsai , Hann-Tsong Wang , Jiun-Hung Chen , De-Chang Lin
发明人： Chun-Hung Lin , Chen-Der Tsai , Hann-Tsong Wang , Jiun-Hung Chen , De-Chang Lin
CPC分类号： C25F7/00
摘要： The present invention is an electropolishing/grinding device for an inner surface of a long tube, including at least one long tube, one electrode, at least two partitions, one fixed magnet mechanism, one driving apparatus and an axial driven mechanism. The fixed magnet mechanism and the driving apparatus form a magnetic levitation effect, which uses magnetic repulsiveness and magnetic attraction to keep the partitions away from the inner surface and avoid an eccentric situation. One of the two partitions has a plurality of springs, a plurality of protruding objects and a plurality of abrasive devices interconnected and firmly touching the inner surface of the tube for grinding.
摘要翻译： 本发明是一种用于长管内表面的电抛光/研磨装置，包括至少一个长管，一个电极，至少两个隔板，一个固定磁铁机构，一个驱动装置和轴向驱动机构。 固定磁体机构和驱动装置形成磁悬浮效应，其使用磁性斥力和磁吸引力将分隔物远离内表面并避免偏心的情况。 两个隔板中的一个具有多个弹簧，多个突出物体和多个研磨装置，其互连并牢固地接触管的内表面用于研磨。
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