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    • 1. 发明授权
    • High-performance fully-compliant micro-mechanisms for force/displacement amplification
    • 用于强制/位移放大的高性能完全兼容的微机构
    • US06748818B2
    • 2004-06-15
    • US10144239
    • 2002-05-13
    • Brian D. JensenMichael FarinaKatsuo Kurabayashi
    • Brian D. JensenMichael FarinaKatsuo Kurabayashi
    • G05G100
    • B81B3/0062B81B3/0037B81B2201/0235G01P15/00H01Q3/01H01Q9/14Y10T74/20006Y10T74/20207Y10T74/20305Y10T74/20329
    • A device for amplifying mechanical and geometrical advantage having a base structure, a first link member having a first end and a second end, and a first compliant flexural joint pivotally interconnects the first end of the first link member to the base structure. A second link member is also provided having a first end and a second end. A second compliant flexural joint pivotally interconnects the first end of the second link member to the base structure. Furthermore, a third link member is provided having a first end and a second end. A third compliant flexural joint pivotally interconnects the first end of the third link member to the second end of the first link member and a fourth compliant flexural joint pivotally interconnects the second end of the third link member to the second end of the second link member. The base structure, first link member, second link member, and third link member cooperate to define a four-bar linkage for receiving an input force and providing an amplified force or displacement output in response thereto.
    • 一种用于放大具有基座结构的机械和几何优点的装置,具有第一端和第二端的第一连杆构件以及第一柔性弯曲接头将第一连杆构件的第一端枢转地互连到基座结构。 还提供了具有第一端和第二端的第二连杆构件。 第二顺从弯曲接头将第二连杆构件的第一端枢转地互连到基部结构。 此外,提供具有第一端和第二端的第三连杆构件。 第三顺从弯曲接头将第三连杆构件的第一端枢转地互连到第一连杆构件的第二端,并且第四顺从弯曲接头将第三连杆构件的第二端枢转地互连到第二连杆构件的第二端。 基座结构,第一连杆构件,第二连杆构件和第三连杆构件协作以限定用于接收输入力的四杆联动装置,并响应于此而提供放大的力或位移输出。
    • 6. 发明授权
    • Dual fan cooling system
    • 双风扇冷却系统
    • US5180003A
    • 1993-01-19
    • US838278
    • 1992-01-14
    • Richard L. KouzelAubery W. PennBrian D. JensenPaul A. Dicke
    • Richard L. KouzelAubery W. PennBrian D. JensenPaul A. Dicke
    • F01M11/10F01P5/02F04D25/16F04D29/58F25D1/00F28F13/12
    • G06K19/07758F01P5/02F04D25/166F04D29/5826F01M11/10
    • Cooling systems are necessary to cool fluid circulated through an internal combustion engine so that engine temperatures can be controlled. The subject dual fan cooling system increases the air flow through a heat exchanger (40) by utilizing a primary fan and a secondary fan (50, 82). The primary fan (50) is located on one side of the heat exchanger (40) and pushes air through the heat exchanger (40) while the secondary fan (82) is located on the opposite side of the heat exchanger (40) and pulls air through the heat exchanger (40). The secondary fan (82) is rotatably mounted in a substantially concentric relation with the primary fan (50) to pull air through the heat exchanger (40) at the area (L) of lowest air flow. The secondary fan (82) also substantially eliminates the recirculation of air back through the heat exchanger (40). A shroud (86) encompasses the secondary fan (82) to substantially block air pushed through the heat exchanger (40) by the primary fan (50) from the secondary fan (82).
    • PCT No.PCT / US90 / 00084 Sec。 371日期:1992年1月14日 102(e)日期1992年1月14日PCT 1990年1月4日PCT PCT。 公开号WO90 / 07759 日期1990年7月12日。冷却系统是冷却通过内燃机循环的流体所必需的,以便控制发动机的温度。 主体双风扇冷却系统通过利用主风扇和次风扇(50,82)增加通过热交换器(40)的空气流。 主风扇(50)位于热交换器(40)的一侧,并且通过热交换器(40)推动空气,而次风扇(82)位于热交换器(40)的相对侧并拉动 空气通过热交换器(40)。 二次风扇82以与主风扇50大致同心的方式可旋转地安装,以便在最低空气流的区域(L)处将空气抽吸通过热交换器40。 次级风扇82也基本上消除了通过热交换器40的空气再循环。 护罩(86)包围二次风扇(82),以从第二风扇(82)基本阻挡主风扇(50)推动通过热交换器(40)的空气。
    • 9. 发明授权
    • Compliant bistable micromechanism
    • 双稳态微机构
    • US07075209B2
    • 2006-07-11
    • US10333302
    • 2001-07-18
    • Larry L. HowellMatthew ParkinsonBrian D. JensenGregory M. Roach
    • Larry L. HowellMatthew ParkinsonBrian D. JensenGregory M. Roach
    • H02N1/00G01P15/02
    • H02N1/006B81C99/006F03G7/06H01H2001/0042
    • A method for designing and optimnizing compliant mechanisms is provided, in addition to bistable compliant mechanism designs. According to the method, a selected compliant structure may be modeled analytically, and the characteristics of the analytical model may be optimized. Multiple recursive optimization algorithms may be used, for example, to determine the general location of a global optimum, and then to determine the values of the analytical model characteristics that obtain the global optimum or a feasible configuration for the selected compliant structure. Geometric characteristics of the selected compliant structure may be derived from the values of the analytical model characteristics. Bistable compliant designs may have a shuttle disposed between a pair of base members. The shuttle (20) may be linked to the base members (22, 24) by a pair of legs (30, 32), via flexural pivots. The base members may have cantilevered mounting beams to create deformable mounts that receive and store potential energy. The stable configurations are those in which the stored potential energy is at a relative minimum.
    • 提供了一种用于设计和优化顺应机制的方法,以及双稳态机构设计。 根据该方法,可以分析地对所选择的顺应性结构进行建模,并且可以优化分析模型的特性。 可以使用多个递归优化算法,例如,以确定全局最优值的一般位置,然后确定获得所选顺应结构的全局最优值或可行配置的分析模型特征值。 可以从分析模型特征的值导出所选顺应性结构的几何特征。 双稳态兼容设计可以具有布置在一对基座构件之间的梭子。 梭子(20)可以通过弯曲枢轴通过一对腿(30,32)连接到基部构件(22,24)。 基部构件可以具有悬臂安装梁,以产生可接收和存储势能的可变形安装件。 稳定的结构是其中存储的势能处于相对最小值的构型。
    • 10. 发明授权
    • Linear impact ripper apparatus
    • 线性破碎机
    • US4984850A
    • 1991-01-15
    • US430544
    • 1989-11-02
    • Brian D. Jensen
    • Brian D. Jensen
    • E21B1/38B25D17/24B25D17/28E02F5/32E21B1/00E21B1/26E21C37/24
    • E02F5/323B25D17/24B25D17/28
    • Impact rippers are useful, for example, in fracturing rock and other hard material which is to be excavated. Known systems using structures which mount the impact hammer and the linear ram within a single housing transmit vibrations into the mounting frame and are difficult to service and expensive to maintain. The subject linear impact ripper apparatus has an impact hammer having one end resiliently mounted to a mounting frame and another end slidably mounted on one of the linear ram and the tool holder. Thus, the disclosed linear impact ripper apparatus reduces vibrations transmitted to the mounting frame and has separate elements for ease of service and reduced maintenance cost and maintains the alignment between the separate parts of the structure. The arrangement allows the connection between the impact hammer and one of the linear ram and the tool holder to be sealed from atmosphere.
    • 冲击裂土器例如在压裂岩石和其他要被挖掘的硬质材料中是有用的。 使用将冲击锤和线性冲头安装在单个壳体内的结构的已知系统将振动传递到安装框架中,并且难以维护并且维护成本高。 主体线性冲击破碎装置具有冲击锤,其一端弹性地安装到安装框架,另一端可滑动地安装在线性压头和工具架之一上。 因此,所公开的线性冲击破裂装置减少了传递到安装框架的振动,并且具有分开的元件,便于维修和降低维护成本,并且维持结构的分离部件之间的对准。 该装置允许冲击锤与线性冲头和工具夹之一的连接与大气密封。