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    • 1. 发明授权
    • Low-noise fan-filter unit
    • 低噪音风扇过滤器单元
    • US06217281B1
    • 2001-04-17
    • US09345377
    • 1999-06-30
    • Ming-Shan JengYa-Wen ChouFang-Hei TasuLai-Fu ChenPen-Chang Tseng
    • Ming-Shan JengYa-Wen ChouFang-Hei TasuLai-Fu ChenPen-Chang Tseng
    • B01D4610
    • F04D29/703F04D29/664
    • A low-noise fan-filter unit for providing filtered airflow is disclosed. The fan-filter unit includes a housing having at least an air inlet and a coaxial air outlet; a centrifugal fan installed in the housing for drawing air into the housing and propelling it out of the air outlet; a filter installed between the fan and the air outlet for removing impurities from the air; and a noise reduction arrangement installed between the fan and the filter for reducing noise. The noise reduction arrangements includes three parting plates incorporating with the housing to form a tortuous air passageway which U-turns the airflow at least two times. The tortuous and extended air passageway, and some sound-absorbing materials furnished along the air passageway increase the contact area between the airflow and the sound-absorbing materials, and enhance the effect of noise absorption.
    • 公开了一种用于提供过滤气流的低噪声风扇过滤器单元。 风扇过滤器单元包括至少具有空气入口和同轴空气出口的壳体; 安装在壳体中的离心式风扇,用于将空气吸入壳体并将其推出出风口; 安装在风扇和空气出口之间的过滤器,用于从空气中除去杂质; 以及安装在风扇和过滤器之间以降低噪音的降噪装置。 降噪装置包括与壳体结合的三个分开板,以形成曲折的空气通道,U形气流至少两次。 曲折的延伸空气通道,以及沿空气通道配置的一些吸声材料增加了气流和吸音材料之间的接触面积,并增强了噪音吸收的作用。
    • 8. 发明授权
    • Multi-stage thermoacoustic device
    • 多级热声装置
    • US07062921B2
    • 2006-06-20
    • US10330140
    • 2002-12-30
    • Ming-Shan JengYa-Wen Chou
    • Ming-Shan JengYa-Wen Chou
    • F25B9/00F01B29/10
    • F25B9/145F25B9/14F25B2309/003F25B2309/1403F25B2309/1412F25B2309/1416F28D7/005F28D7/0058
    • A multi-stage thermoacoustic device includes a resonance tube mounted therein a plurality of stacks and a plurality of heat exchangers interlaid with each other adjacent to a second end of the resonance tube. A working fluid is filled in the resonance tube. A driver mounted on a first end of the resonance tube drives the working fluid oscillate in the resonance tube, the working fluid is compressed and expanded and causes temperature oscillation and thermal energy flowing from one end of the stack to the other end. The thermal energy, such as cooling capacity, is finally transferred outward through the heat exchangers on sides of the stacks. The multiple stacks and heat exchangers perform a multiple stage temperature gradient. More thermal energy is transferred, and the working efficiency is improved.
    • 多级热声装置包括安装有多个堆叠的共振管和彼此相邻的多个热交换器,该多个热交换器邻近共振管的第二端。 工作流体填充在共振管中。 安装在谐振管的第一端的驱动器驱动谐振管中的工作流体振荡,工作流体被压缩和膨胀,并导致温度振荡和热能从堆叠的一端流到另一端。 热能,例如冷却能力,最终通过堆叠侧面的热交换器向外传递。 多个堆叠和热交换器执行多级温度梯度。 传递更多的热能,提高工作效率。