Pulse detonation engine having an aerodynamic valve
    3.
    发明授权
    Pulse detonation engine having an aerodynamic valve 有权
    具有气动阀的脉冲爆震发动机

    公开(公告)号:US06584765B1

    公开(公告)日:2003-07-01

    申请号:US10026236

    申请日:2001-12-21

    IPC分类号: F02K702

    摘要: A pulse detonation engine (10) is provided with an aerovalve (14) for controlling the pressure of injected propellants (Ox, Fuel) in an open-ended detonation chamber (26). The propellants are injected at such pressure and velocity, and in a direction generally toward a forward thrust wall end (16) of the detonation chamber (26), an aerovalve (14) is formed which effectively inhibits or prevents egress of the propellant from the detonation chamber (26). A shock wave (34) formed by the injected propellant acts, after reflection by the thrust wall end (16) and in combination with the aerovalve (14), to compress and conserve, or increase, the pressure of the injected propellant. Carefully timed ignition (28) effects a detonation pulse under desired conditions of maintained, or increased, pressure. Termination of the propellant injection serves to “open” the aerovalve (14), and exhaust of the combusted propellants occurs to produce thrust. Alternate embodiments of propellant injection mechanisms (12, 112) provide pulse valves (24, 122, 124) each having a fixed slotted disk (40, 140, 240) and a rotating slotted disk (42, 142, 242) to provide the desired high speed valving of discrete pulses of propellant for injection.

    摘要翻译: 脉冲爆震发动机(10)设置有空气阀(14),用于控制开放式爆震室(26)中喷射的推进剂(Ox,Fuel)的压力。 推进剂以这样的压力和速度被注入,并且在大致朝向引爆室(26)的向前推力壁端部(16)的方向上注入,形成了一个空气阀(14),其有效地抑制或防止推进剂从 爆震室(26)。 由喷射的推进剂形成的冲击波(34)在被推力壁端部(16)反射并与空气阀(14)组合之后作用,以压缩并保存或增加喷射推进剂的压力。 仔细定时点火(28)会在保持或增加压力的期望条​​件下产生爆震脉冲。 推进剂喷射的终止用于“打开”空气阀(14),并且发生燃烧的推进剂的排气以产生推力。 推进剂喷射机构(12,112)的替代实施例提供脉冲阀(24,122,124),每个脉冲阀具有固定的开槽圆盘(40,140,​​240)和旋转的开槽圆盘(42,142,242)以提供期望的 用于注射的推进剂的离散脉冲的高速阀。

    Lance carriage
    4.
    发明授权
    Lance carriage 失效
    喷枪

    公开(公告)号:US5374296A

    公开(公告)日:1994-12-20

    申请号:US90121

    申请日:1993-09-22

    申请人: Gary D. Jones

    发明人: Gary D. Jones

    IPC分类号: C21C5/46 F27D3/16

    CPC分类号: C21C5/462 F27D3/16

    摘要: An elongate lance (4) is raised or lowered by means of a carnage (7) which is guided by vertical channels (8). The lance has lateral projections (18) whereby it is supported in a cradle (17) mounted to carriage (7) via springs (29). The apparatus permits the lance lower end (12) to be submerged in bath (3) and permits restricted lateral movement of the lance lower end.

    摘要翻译: PCT No.PCT / AU92 / 00017 Sec。 371日期:1993年9月22日 102(e)日期1993年9月22日PCT提交1992年1月17日PCT公布。 公开号WO92 / 13246 日期:1992年8月6日。通过由垂直通道(8)引导的屠体(7)将细长的喷枪(4)升高或降低。 喷枪具有横向突起(18),由此其通过弹簧(29)支撑在安装到滑架(7)的支架(17)中。 该装置允许喷枪下端(12)浸没在浴(3)中并且允许喷枪下端的受限横向运动。

    Correlation spectrometer
    5.
    发明授权
    Correlation spectrometer 有权
    相关光谱仪

    公开(公告)号:US07697134B1

    公开(公告)日:2010-04-13

    申请号:US11593386

    申请日:2006-11-06

    IPC分类号: G01J3/04

    摘要: A correlation spectrometer can detect a large number of gaseous compounds, or chemical species, with a species-specific mask wheel. In this mode, the spectrometer is optimized for the direct measurement of individual target compounds. Additionally, the spectrometer can measure the transmission spectrum from a given sample of gas. In this mode, infrared light is passed through a gas sample and the infrared transmission signature of the gasses present is recorded and measured using Hadamard encoding techniques. The spectrometer can detect the transmission or emission spectra in any system where multiple species are present in a generally known volume.

    摘要翻译: 相关光谱仪可以用物种特异性掩模轮检测大量气态化合物或化学物质。 在这种模式下,光谱仪被优化用于直接测量单个目标化合物。 另外,光谱仪可以测量给定的气体样品的透射光谱。 在这种模式下,红外光通过气体样品,并使用Hadamard编码技术记录和测量气体的红外透射特征。 光谱仪可以检测在通常已知体积中存在多种物质的任何系统中的透射或发射光谱。

    Presser bar guide
    8.
    发明授权
    Presser bar guide 失效
    压条指南

    公开(公告)号:US4323024A

    公开(公告)日:1982-04-06

    申请号:US141879

    申请日:1980-04-21

    IPC分类号: D05B29/00 D05B29/02

    CPC分类号: D05B29/02

    摘要: A hollow bushing (22 or 54) that guides a presser bar (21) to move in a longitudinal direction is threaded at one end (29 and 30). The outer surface of that end is round and, below the thread (59), fits closely but rotatably in a channel (32) in the head (16) of a sewing machine. The bushing is not fixedly held in place in the channel (32). Instead, a tension spring (33) screwed onto the threaded end and onto a threaded member (37) attached to the end of the presser bar (21) within the head (16) pulls the presser bar downwardly so that its foot (24) normally presses against the work (46) and simultaneously pulls the bushing (22 or 54) toward the head (16). A shoulder surface (27 or 58) at a certain location on the bushing (22 or 54) acts as a stop to limit the extent that the cylinder can be drawn into the head. The spring (33) is fully screwed onto the threaded sleeves (30 and 36) until the ends of the spring butt against surfaces (34 and 40), eliminating operator-adjusted presser foot pressure and simiplying the presser foot pressure mechanism.

    摘要翻译: 引导压杆(21)沿纵向移动的中空衬套(22或54)在一端(29和30)处是螺纹的。 该端部的外表面是圆形的,并且在线(59)下方紧密但可旋转地配合在缝纫机的头部(16)中的通道(32)中。 衬套没有固定地保持在通道(32)中的适当位置。 相反,拧在螺纹端上并连接到头部(16)内的压杆(21)的端部上的螺纹构件(37)上的拉伸弹簧(33)将压脚向下拉,使得其脚部(24) 通常压靠工件(46)并同时将衬套(22或54)拉向头部(16)。 在衬套(22或54)上的某个位置处的肩部表面(27或58)用作止挡件,以限制气缸能够吸入头部的程度。 弹簧(33)完全旋拧到螺纹套筒(30和36)上,直到弹簧的端部对接表面(34和40),消除了操作者调节的压脚压力并且使压脚压力机构变形。

    Alarm device
    9.
    发明授权
    Alarm device 有权
    报警装置

    公开(公告)号:US06285287B1

    公开(公告)日:2001-09-04

    申请号:US09737787

    申请日:2000-12-15

    IPC分类号: G08B1314

    CPC分类号: G08B15/004

    摘要: A alarm device for warding off an imminent attack by generating loud warning sounds and generating attention. The alarm device includes a housing including a front wall, a back wall, a pair of side walls and a pair of end walls and designed for securely coupling to a user; a first sound generating device is coupled within the housing and is operationally coupled to a first such that the first sound generating device produces a first sound when the first switch is actuated; a second sound generating device is coupled within the housing operationally coupled to a second switch such that the second sound generating device produces a second sound when the second switch is actuated; and a power source is operationally coupled to the first switch and the second switch such that the power supply provides power to the first sound generating device and the second sound generating device when the first switch and the second switch are actuated.

    摘要翻译: 一种用于通过产生大声警告声并产生注意来防止即将发生的攻击的报警装置。 报警装置包括壳体,其包括前壁,后壁,一对侧壁和一对端壁,并被设计用于牢固地联接到使用者; 第一声​​音产生装置联接在壳体内并且可操作地耦合到第一声音产生装置,使得当第一开关被致动时,第一声音产生装置产生第一声音; 第二声音产生装置联接在壳体内,可操作地耦合到第二开关,使得当第二开关被致动时,第二声音产生装置产生第二声音; 并且电源可操作地耦合到第一开关和第二开关,使得当第一开关和第二开关被致动时,电源向第一声音产生装置和第二声音产生装置提供电力。

    Method for accurately positioning a device at a desired area of interest
    10.
    发明授权
    Method for accurately positioning a device at a desired area of interest 有权
    用于将设备精确地定位在期望的感兴趣区域的方法

    公开(公告)号:US6085581A

    公开(公告)日:2000-07-11

    申请号:US195565

    申请日:1998-11-18

    摘要: A method for positioning a first device utilizing a surface having a viewing translation stage, the surface being movable between a first position where the viewing stage is in operational alignment with a first device and a second position where the viewing stage is in operational alignment with a second device. The movable surface is placed in the first position and an image is produced with the first device of an identifiable characteristic of a calibration object on the viewing stage. The moveable surface is then placed in the second position and only the second device is moved until an image of the identifiable characteristic in the second device matches the image from the first device. The calibration object is then replaced on the stage of the surface with a test object, and the viewing translation stage is adjusted until the second device images the area of interest. The surface is then moved to the first position where the test object is scanned with the first device to image the area of interest. An alternative embodiment where the devices move is also disclosed.

    摘要翻译: 一种利用具有观察平移台的表面定位第一装置的方法,所述表面可在观察台与第一装置工作对准的第一位置和观察台与第一装置的操作对准的第二位置之间移动 第二设备 可移动表面被放置在第一位置,并且在观察台上用校准物体的可识别特征的第一装置产生图像。 然后可移动表面被放置在第二位置,并且仅移动第二装置,直到第二装置中的可识别特征的图像与来自第一装置的图像匹配。 然后用测试对象在表面的台上更换校准对象,并且调整观察转换级直到第二设备对感兴趣的区域成像。 然后将表面移动到第一位置,其中用第一装置扫描测试对象以对感兴趣的区域成像。 还公开了设备移动的替代实施例。