Relative gas spring configuration free-piston stirling cycle system
    1.
    发明授权
    Relative gas spring configuration free-piston stirling cycle system 失效
    相对气弹簧配置自由活塞搅拌循环系统

    公开(公告)号:US5109673A

    公开(公告)日:1992-05-05

    申请号:US694370

    申请日:1991-05-01

    摘要: A Free-Piston Stirling cycle system includes a cylinder arranged within a sealed, pressurized housing. A power piston is arranged for reciprocation within or about one region of the cylinder, and a light-weight displacer, having a selected diameter is arranged for reciprocation within or about another region of the cylinder and defining with the cylinder a compression space and an expansion space. The power piston also defines with the cylinder, a gas spring space. A gas spring piston of preselected diameter couples the displacer with this gas spring space to establish a relative gas spring which generates a force to reciprocate the displacer by the relative motion between the displacer and the power piston. In accordance with this present invention the ratio of the diameter of the gas spring piston to the diameter of the displacer is made to be at least 0.50.

    摘要翻译: 自由活塞斯特林循环系统包括设置在密封的加压壳体内的气缸。 功率活塞被布置用于在圆筒的一个区域内或周围往复运动,并且具有选定直径的轻质置换器被布置用于在圆筒的另一区域内或周围往复运动,并且与气缸一起限定压缩空间和膨胀 空间。 动力活塞还与气缸一起定义气弹簧空间。 预选直径的气弹簧活塞将该置换器与该气弹簧空间联接,以形成一相对气弹簧,该相对气弹簧通过置换器与动力活塞之间的相对运动产生使置换器往复运动的力。 根据本发明,将气弹簧活塞的直径与置换器的直径的比率设为至少为0.50。

    Virtual rotor balancing in magnetic bearings
    3.
    发明授权
    Virtual rotor balancing in magnetic bearings 失效
    磁轴承中的虚拟转子平衡

    公开(公告)号:US5084643A

    公开(公告)日:1992-01-28

    申请号:US641688

    申请日:1991-01-16

    申请人: Hsiang M. Chen

    发明人: Hsiang M. Chen

    IPC分类号: F16C39/06 G01M1/20

    CPC分类号: F16C32/0444 G01M1/20

    摘要: The apparatus uses an influence coefficient calculating method to allow a rotor supported on active magnetic bearings to rotate about an inertial axis which, due to possible imbalances in the rotor, may be different from the geometric axis of the rotor, without transmitting imbalance forces to the housing of the active magnetic bearings.

    摘要翻译: 该装置使用影响系数计算方法来允许支撑在主动磁轴承上的转子围绕惯性轴旋转,该惯性轴由于转子中可能的不平衡而可能不同于转子的几何轴线,而不会将不平衡力传递到 主动磁轴承的外壳。

    Real time machining control system including in-process part measuring
and inspection
    4.
    发明授权
    Real time machining control system including in-process part measuring and inspection 失效
    实时加工控制系统,包括在线零件测量和检验

    公开(公告)号:US4974165A

    公开(公告)日:1990-11-27

    申请号:US276787

    申请日:1988-11-28

    IPC分类号: G05B19/416

    摘要: A real-time machining control system is provided which includes a conventional computer numerical control and a dimensional measurement system which continually measures the actual diameter of the rotating workpiece and provides an error signal representing the difference between the actual diameter of the workpiece and that of the part program. The error signal is used to directly control the movement of the cutting tool to assure that the final actual machined profile and dimensions of the workpiece conform to the part program.

    摘要翻译: 提供了一种实时加工控制系统,其包括常规的计算机数字控制和尺寸测量系统,其连续地测量旋转工件的实际直径,并提供表示工件的实际直径与工件的实际直径之间的差的误差信号 零件程序。 误差信号用于直接控制切削刀具的运动,以确保最终的实际加工型材和工件的尺寸符合零件程序。

    Permanent magnet linear electromagnetic machine
    5.
    发明授权
    Permanent magnet linear electromagnetic machine 失效
    永磁线性电磁机

    公开(公告)号:US4937481A

    公开(公告)日:1990-06-26

    申请号:US297067

    申请日:1989-01-13

    IPC分类号: H02K33/16 H02K35/02

    CPC分类号: H02K35/02 H02K33/16

    摘要: A linear reciprocating electromagnetic machine has an outer stator member having axially spaced apart pole pieces, an open-slot coil cavity housing a coil, and an inner stator member spaced from the outer stator member and providing means for completing a path for magnetic flux. The machine also includes a permanent magnet plunger arranged for reciprocation with respect to the stator members and within the space between such stator members. The plunger is provided with three permanent magnet segments arranged axially along the plunger such that the interface zones between the magnet segments are substantially within the region defined by the stator pole pieces for all operating axial positions of the plunger. The two outer magnet segments are of equal axial length while the center magnet segment is axially longer than an outer magnet segment by an amount equal to the axial length of the open slot of the coil cavity.

    摘要翻译: 线性往复式电磁机具有具有轴向间隔开的极片的外部定子构件,容纳线圈的开放式空腔线圈腔和与外部定子构件间隔开的内部定子构件,以及用于完成磁通路径的提供装置。 该机器还包括永磁体柱塞,该永磁体柱塞布置成相对于定子构件往复运动并且在这些定子构件之间的空间内。 柱塞设置有沿着柱塞轴向设置的三个永磁体段,使得磁体段之间的界面区域基本上位于由定子极片限定的区域中,用于柱塞的所有操作轴向位置。 两个外磁体段具有相同的轴向长度,而中心磁体段的轴向长于外磁体段等于线圈腔的开口槽的轴向长度的量。

    Optical configuration of fiber optic sensor for symmetric dynamic
response about the optical null
    6.
    再颁专利
    Optical configuration of fiber optic sensor for symmetric dynamic response about the optical null 失效
    光纤传感器的光学配置,用于对称光学零点的对称动态响应

    公开(公告)号:USRE33078E

    公开(公告)日:1989-10-03

    申请号:US195493

    申请日:1988-05-18

    IPC分类号: G01B11/02

    CPC分类号: G01B11/026

    摘要: A method of determining the displacement of a fiber optic sensor from a target in which a first lens is spaced from the target at a first distance an a second lens is spaced from said target at a second distance which provides the greatest intensity response at said first distance and thereafter spacing said first lens from said second lens to provide symmetrical slope values of response.

    Pressure actuated movable head for a resonant reciprocating compressor
balance chamber
    7.
    发明授权
    Pressure actuated movable head for a resonant reciprocating compressor balance chamber 失效
    用于谐振式往复式压缩机平衡室的压力可动头

    公开(公告)号:US4836757A

    公开(公告)日:1989-06-06

    申请号:US206220

    申请日:1988-06-13

    摘要: The present invention relates to a resonant piston compressor in which a double-sided piston reciprocates within a cylinder and defines a valved compression space on one side of the piston and a balance chamber on its other side. The invention further includes a movable head adjustable between first and second positions to effect a large change in the total volume of the balance chamber between the two positions. In one position, of the movable head an extended balance chamber volume is coupled to the balanced chamber while in the other position of the movable head, the extended balance chamber volume is decoupled from the balance chamber.

    摘要翻译: 共振活塞式压缩机技术领域本发明涉及一种共振活塞式压缩机,其中双面活塞在气缸内往复运动并且在活塞的一侧上限定有阀的压缩空间,在另一侧限定了平衡室。 本发明还包括可在第一和第二位置之间调节的可动头,以实现两个位置之间的平衡室的总体积的大的变化。 在可移动头的一个位置中,在可移动头的另一位置处,延伸的平衡室容积联接到平衡室,延伸的平衡室容积与平衡室分离。

    Stabilizing means for free piston-type linear resonant reciprocating
machines
    8.
    发明授权
    Stabilizing means for free piston-type linear resonant reciprocating machines 失效
    自由活塞式线性共振往复机的稳定装置

    公开(公告)号:US4750871A

    公开(公告)日:1988-06-14

    申请号:US024340

    申请日:1987-03-10

    申请人: Peter W. Curwen

    发明人: Peter W. Curwen

    IPC分类号: F04B35/04 F04B1/08 F04B39/08

    CPC分类号: F04B35/045

    摘要: A resonant reciprocating compressor wherein a reciprocating assembly comprising the movable armature of an electric reciprocating motor and a piston means coupled to the armature is driven cyclically when the electric motor is energized from an alternating current source to compress a working fluid, and including means operatively associated with the reciprocating assembly for producing a stabilizing force gradient in a direction to maintain or restore the reciprocating assembly to a centered operating position.

    摘要翻译: 一种共振往复式压缩机,其特征在于,当电动马达从交流电源通电以压缩工作流体时,包括电动往复马达的可动衔铁和联接到电枢的活塞装置的往复运动组件被循环地驱动, 具有往复运动组件,用于在将往复运动组件维持或恢复到中心运行位置的方向上产生稳定力梯度。

    Digital signal output capacitance sensor displacement gauging system
    9.
    发明授权
    Digital signal output capacitance sensor displacement gauging system 失效
    数字信号输出电容式传感器位移测量系统

    公开(公告)号:US4719409A

    公开(公告)日:1988-01-12

    申请号:US782887

    申请日:1985-10-02

    申请人: Richard A. Dorman

    发明人: Richard A. Dorman

    CPC分类号: G01R27/2605 G01H11/06

    摘要: A new variable impedance type system is described for measuring a preselected physical parameter such as spacing, displacement, pressure, vibration, etc. A sensor/transducer is positioned to provide the variable impedance. The sensor/transducer is part of a self-oscillatory circuit which produces pulses having a pulse rate proportional to the physical parameter being measured.

    摘要翻译: 描述了用于测量诸如间隔,位移,压力,振动等的预选物理参数的新的可变阻抗型系统。定位传感器/换能器以提供可变阻抗。 传感器/换能器是自振荡电路的一部分,其产生具有与所测量的物理参数成比例的脉冲速率的脉冲。

    Precision optical displacement measuring instrument using servo
controlled fiber optic sensor
    10.
    发明授权
    Precision optical displacement measuring instrument using servo controlled fiber optic sensor 失效
    精密光学位移测量仪器采用伺服控制光纤传感器

    公开(公告)号:US4674882A

    公开(公告)日:1987-06-23

    申请号:US709582

    申请日:1985-03-08

    IPC分类号: G01B11/02 G01B11/14

    CPC分类号: G01B11/026

    摘要: A displacement measuring instrument for measuring the displacement of a target including in combination a fiber optic lens assembly including means for maintaining said assembly in space relation with said target, dither means for vibrating said assembly toward and away from said target about the lens null along the axis of said assembly, first electronic means for providing a first output voltage proportional to displacement of said assembly from said target, second electronic means cancelling that portion of said first output voltage resulting from displacement due to said dither means and providing a second voltage resulting from displacement due to means other than said dither means, servo means receiving said second output voltage and moving said assembly with respect to said target to null said second output voltage and measurement means measuring the movement of said servo means.

    摘要翻译: 一种用于测量目标的位移的位移测量仪器,包括组合的光纤透镜组件,所述光纤透镜组件包括用于将所述组件保持与所述目标物处于空间关系的装置,所述抖动装置用于使所述组件朝向和离开所述目标绕着所述透镜零点沿着 所述组件的第一电子装置,用于提供与所述组件从所述目标的位移成比例的第一输出电压的第一电子装置,第二电子装置抵消由于所述抖动装置引起的位移而产生的所述第一输出电压的那部分,并且提供由 由伺服装置接收所述第二输出电压并相对于所述目标移动所述组件的位移是零,所述第二输出电压和测量装置测量所述伺服装置的运动。