Silencer attenuating a noise from a noise source to be ventilated and a
method for active control of its noise attenuation system
    1.
    发明授权
    Silencer attenuating a noise from a noise source to be ventilated and a method for active control of its noise attenuation system 失效
    消声器将来自噪声源的噪声衰减为通风,以及用于主动控制其噪声衰减系统的方法

    公开(公告)号:US5253486A

    公开(公告)日:1993-10-19

    申请号:US692359

    申请日:1991-04-26

    摘要: A silencer attenuating a noise from a noise source to be ventilated of this invention comprises a machine compartment with a one-dimensional duct configuration whose sectional dimension is sufficiently small in comparison with the wavelength of the noise to be attenuated, a compressor and/or other machinery disposed within the machine compartment, an opening for dissipation of heat as disposed in a wall of the machine compartment and opening in a direction generally perpendicular to the direction of advance of sound within the machine compartment, a vibration pickup for detecting the vibration of the machinery corresponding to the output noise of the machinery, and a control circuit for processing output signals from the vibration pickup to drive a sound generator such as a speaker. The sound generator outputs a controlling signal dependent on the machine noise to cancel the noise about to emerge from the machine compartment.

    摘要翻译: 一种消音器,其能够衰减本发明通风的噪声源的噪声,其特征在于:具有一维管道结构的机舱,其截面尺寸与要衰减的噪声的波长相比足够小,压缩机和/或其它 设置在机器间内的机械,设置在机器隔室的壁上并散开热量的开口,并且在与机舱内的声音方向大致垂直的方向上开口,用于检测机械室内的振动的振动拾取器 对应于机械的输出噪声的机械,以及用于处理来自振动拾取器的输出信号以驱动诸如扬声器的声音发生器的控制电路。 声音发生器输出取决于机器噪音的控制信号,以消除要从机器舱出来的噪音。

    Silencer
    2.
    发明授权
    Silencer 失效
    消声器

    公开(公告)号:US5052041A

    公开(公告)日:1991-09-24

    申请号:US485563

    申请日:1990-02-27

    摘要: A silencer for refrigerators includes a microphone for detecting noise produced by a compressor disposed in a machine compartment and converting the noise to an electrical signal, a signal converter converting the electrical signal generated by the microphone to a corresponding sound wave signal suitable for deadening the noise from the compressor by the effect of the sound wave interference, a speaker driven in response to the sound wave signal generated by the signal converter such that the sound is directed to the interior of the machine compartment of the refrigerator, a storage for previously storing data of noise patterns of the compressor in the abnormal condition of an evaporator as reference patterns, and a control comparing the electrical signal generated by the microphone with the data of the reference noise patterns stored in the storage, thereby determining as to whether or not the evaporator is abnormal.

    摘要翻译: 用于冰箱的消声器包括麦克风,用于检测设置在机舱中的压缩机产生的噪声并将噪声转换成电信号;信号转换器,其将由麦克风产生的电信号转换成适于消除噪声的对应声波信号 由压缩机通过声波干扰的作用,响应于由信号转换器产生的声波信号而驱动的扬声器,使得声音被引导到冰箱的机舱的内部,用于预先存储数据的存储器 在蒸发器的异常状态下的压缩机的噪声模式作为参考模式,以及将由麦克风产生的电信号与存储在存储器中的参考噪声模式的数据进行比较的控制,从而确定蒸发器 是异常的

    Low noise refrigerator and noise control method thereof
    3.
    发明授权
    Low noise refrigerator and noise control method thereof 失效
    低噪声制冷器及其噪声控制方法

    公开(公告)号:US5127235A

    公开(公告)日:1992-07-07

    申请号:US626042

    申请日:1990-12-14

    IPC分类号: F25D23/00 G10K11/178

    摘要: In a low noise refrigerator, a rotary compressor constituting a noise source is arranged within a machine chamber provided with an opening in one location, which chamber has a one-dimensional duct construction having a cross-sectional dimension which is small relative to trhe wavelength of the noise which is to be reduced. A vibration pick-up being located in the vicinity of the rotary compressor. The vibration pick-up detects compressor vibrations which correlate to the compressor noise, in the tangential direction of the compressor. There is provided a control circuit that processes the output signal of the vibration pick-up. In the machine chamber, a sound generator is driven by the output signal of the control circuit to generate a control sound, so that the compressor noise which tries to issue from the opening is canceled by the control sound.

    摘要翻译: 在低噪声冰箱中,构成噪声源的旋转式压缩机布置在设置有一个位置的开口的机器室中,该室具有一维管道结构,其横截面尺寸相对于波长的波长小 要减少的噪音。 振动拾取器位于旋转压缩机附近。 振动拾取器检测与压缩机噪声相关的压缩机振动,压缩机的切线方向。 提供了处理振动拾取器的输出信号的控制电路。 在机器室中,发声器由控制电路的输出信号驱动以产生控制声,从而通过控制声来消除试图从开口发出的压缩机噪音。

    Refrigerating apparatus having noise attenuation
    4.
    发明授权
    Refrigerating apparatus having noise attenuation 失效
    具有噪声衰减的制冷装置

    公开(公告)号:US5125241A

    公开(公告)日:1992-06-30

    申请号:US666049

    申请日:1991-03-07

    IPC分类号: F25D23/00 G10K11/178

    摘要: A refrigerator with a noise attenuating function includes a cabinet having storage and machine compartments, a compressor disposed in the machine compartment, a noise detector disposed in the machine compartment for detecting noise produced from driving of the compressor and converting the noise to an electrical signal, an operational unit for converting the electrical signal to an acoustic signal for an active noise control, a cancellation sound producer producing a sound of opposite phase with the noise based on the acoustic signal so that the noise is attenuated, a noise attenuation monitoring sound receiver for monitoring the noise attenuating effect of the cancellation sound producer, an adaptive control circuit changing an operational factor of the operational unit by a predetermined amount when the monitoring result of the noise attenuation monitoring sound receiver is out of a predetermined tolerance, the adaptive control circuit being adapted to continuously perform the operation of changing the operational factor until the monitoring result comes into the tolerance, and a connecting member for integrally connecting the cancellation sound producer and the noise attenuation monitoring sound receiver.

    摘要翻译: 具有噪声衰减功能的冰箱包括具有存储和机器隔间的机壳,设置在机舱中的压缩机,设置在机器室中的噪声检测器,用于检测由压缩机的驱动产生的噪声并将噪声转换成电信号, 用于将电信号转换为用于主动噪声控制的声信号的操作单元,抵消声音产生器,其基于声信号产生与噪声相反相位的声音,使得噪声被衰减;噪声衰减监测声音接收器,用于 监视消除声音发生器的噪声衰减效果,当噪声衰减监测声音接收机的监视结果超出预定公差时,自适应控制电路将操作单元的操作系数改变预定量,自适应控制电路是 适应于连续执行操作 改变操作因素直到监视结果达到公差的离子,以及用于将取消声音产生器和噪声衰减监测声音接收器整体连接的连接构件。

    Silencer
    5.
    发明授权
    Silencer 失效
    消声器

    公开(公告)号:US4989252A

    公开(公告)日:1991-01-29

    申请号:US413559

    申请日:1989-09-28

    摘要: A silencer for refrigerators includes a microphone receiving sound from a motor-compressor mounted in a machine compartment to thereby generate an electrical signal in accordance with the received sound, a signal converter converting the electrical signal generated by the noise receiver to an electrical signal for producing sound deadening the sound from the motor-compressor by the effect of sound wave interference, and a speaker for producing the sound based on the signal converted by the signal converter so that the sound interferes with the sound from the motor-compressor. The machine compartment is closed with a ventilating opening left opened. One of dimensions of the machine compartment in the three-dimensional directions is set at a value larger than those of the others so that a standing wave of the sound from the motor-compressor in the machine compartment is composed only in a primary mode in a low frequency range below 700 Hz. The ventilating opening is formed into a generally rectangular shape extending in the direction perpendicular to the direction that the standing wave travels.

    摘要翻译: 用于冰箱的消音器包括麦克风,其接收来自安装在机舱中的马达 - 压缩机的声音,从而根据接收到的声音产生电信号;信号转换器,将由噪声接收器产生的电信号转换成电信号,以产生 通过声波干扰对来自电动压缩机的声音进行声音衰减,以及基于由信号转换器转换的信号产生声音的扬声器,使得声音干扰来自电动压缩机的声音。 机舱隔开通风口关闭。 机舱在三维方向上的尺寸之一被设定为大于其他尺寸的值,使得来自机舱中的电动机 - 压缩机的声音的驻波仅在主模式中构成 低频范围低于700 Hz。 通风口形成为在与驻波方向垂直的方向上延伸的大致矩形形状。

    Low noise refrigerator and noise control method thereof
    6.
    发明授权
    Low noise refrigerator and noise control method thereof 失效
    低噪声制冷器及其噪声控制方法

    公开(公告)号:US5117642A

    公开(公告)日:1992-06-02

    申请号:US626705

    申请日:1990-12-14

    IPC分类号: F25D23/00 G10K11/178

    摘要: In a low noise refrigerator, a compressor constituting a noise source is arranged within a machine chamber provided with an opening in one location, which chamber has a one-dimensional duct construction in which its cross-sectional dimension is small relative to the wavelength of the noise which is to be reduced. A vibration pick-up is located in the vicinity of the compressor. The vibration pick-up detects compressor vibrations which correlate to the compressor noise of the compressor. There is provided a control circuit that processes the output signal of the vibration pick-up. In the machine chamber, a sound generator is driven by the output signal of the control circuit to generate a control sound, so that the compressor noise which tries to issue from the opening is canceled by the control sound.

    摘要翻译: 在低噪声冰箱中,构成噪声源的压缩机布置在设置有一个位置的开口的机器室中,该室具有一维管道结构,其横截面尺寸相对于 要减少的噪音。 振动拾取器位于压缩机附近。 振动拾取器检测与压缩机的压缩机噪声相关的压缩机振动。 提供了处理振动拾取器的输出信号的控制电路。 在机器室中,发声器由控制电路的输出信号驱动以产生控制声,从而通过控制声来消除试图从开口发出的压缩机噪音。

    Silencer
    7.
    发明授权
    Silencer 失效
    沉默

    公开(公告)号:US5093864A

    公开(公告)日:1992-03-03

    申请号:US485559

    申请日:1990-02-27

    摘要: A silencer for deadening noise produced with drive of a motor-compressor disposed in a machine compartment of a refrigerator includes a data storage for previously storing sound wave data for every starting condition of the compressor, the sound wave data corresponding to sound waves produced by the compressor during a starting period thereof, the sound wave data being sound wave signals suitable for reducing sound from the compressor by the effect of sound wave interference, a control for determining the starting condition at the starting of the compressor, the control further reading out, from the data storage, the sound wave data corresponding to the determined starting condition, during the starting of the compressor, and a sound producer driven in response to the sound wave data read out from the data storage in the form of an electrical signal, thereby producing sound waves, the sound producer being disposed so that sound is directed to the interior of the machine compartment.

    摘要翻译: 用于设置在冰箱的机舱中的电动压缩机的驱动产生的消音噪音的消声器包括用于预先存储压缩机的每个起始状态的声波数据的数据存储器,对应于由压缩机产生的声波的声波数据 压缩机在起动期间,声波数据是适合于通过声波干扰的作用减少来自压缩机的声音的声波数据,用于确定压缩机启动时的起动条件的控制,控制进一步读出, 从数据存储器,在压缩机启动期间对应于所确定的启动条件的声波数据和响应于以电信号的形式从数据存储器读出的声波数据而被驱动的声音发生器,从而 产生声波,声音产生器被布置成使得声音被引导到机器室的内部。

    Core-sheath composite conductive fiber
    9.
    发明授权
    Core-sheath composite conductive fiber 有权
    芯鞘复合导电纤维

    公开(公告)号:US06710242B1

    公开(公告)日:2004-03-23

    申请号:US10070885

    申请日:2002-07-22

    IPC分类号: H01B734

    摘要: A sheath-core composite conductive fiber having a sheath component made of a fiber-forming polymer containing conductive carbon black, is characterized in that, with respect to an inscribed circle of a core component and an inscribed circle of a sheath component in a cross section of the fiber, a radius (R) of the inscribed circle of the sheath component and a distance (r) between the centers of two inscribed circles satisfy a specific relationship, and a sheath-core composite conductive fiber having: a core component made of a polyester containing ethylene terephthalate as a main component, and a sheath component made of a mixture of a copolyester wherein ethylene terephthalate accounts for 10 to 90 mol % of constituent units thereof and carbon black. The conductive fiber can be used alone or in combination with other fibers in various applications, e.g., special working clothes such as dust-free clothes and interiors such as carpets.

    摘要翻译: 具有由含有导电性炭黑的纤维形成性聚合物构成的护套成分的皮芯型复合导电性纤维的特征在于,对于芯部件的内切圆和外皮部件的内切圆截面 的外皮组分的内切圆的半径(R)和两个内接圆的中心之间的距离(r)满足特定关系,并且具有:芯 - 芯复合导电纤维,其具有:芯组分由 含有对苯二甲酸乙二醇酯作为主要成分的聚酯和由共聚酯,其中对苯二甲酸乙二醇酯占其组成单元和碳黑的共混聚酯的混合物组成的皮组分。 导电纤维可以单独使用或与各种应用中的其它纤维组合使用,例如特殊工作服,例如无尘衣物和诸如地毯的内部。

    Method of construction of top slab for a nuclear containment building
    10.
    发明授权
    Method of construction of top slab for a nuclear containment building 失效
    核遏制建筑顶板的施工方法

    公开(公告)号:US5119598A

    公开(公告)日:1992-06-09

    申请号:US590172

    申请日:1990-09-28

    IPC分类号: E04B5/00 G21C13/00

    CPC分类号: G21C13/00 Y02E30/40

    摘要: A method of constructing a top slab to provide a containment roof over a nuclear-power generating building, in particular, a method for utilizing overhead spaces bounded by a wall of the containment building and a shielding wall of the pressure vessel building, wherein the sequential steps involve; erecting a plurality of paired support columns on tops of the wall and of the shielding wall; building upper structural components across said paired support columns; installing a slab liner equipped with slab anchors beneath said lower structural components by suitable joining means; constucting a reinforcing network above said lower structural components; encasing said lower structural components and said reinforcing network; and pouring concrete over the slab liner to a suitable depth.

    摘要翻译: 一种构造顶板以在核能发电建筑物上提供安全壳屋顶的方法,特别是一种利用由密闭建筑物的墙壁和压力容器建筑物的屏蔽壁限定的顶部空间的方法,其中顺序地 步骤涉及; 在壁和屏蔽壁的顶部上竖立多个成对的支撑柱; 在所述成对的支撑柱上建立上部结构部件; 通过适当的接合方式在所述下部结构部件下面安装装有板锚的板坯衬板; 在上述下部结构部件的上方形成加强网络; 包围所述下部结构部件和所述加强网络; 并将混凝土浇筑在板坯衬套上至合适的深度。