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    • 4. 发明公开
    • CRYOCOOLER HAVING VARIABLE-LENGTH INERTANCE CHANNEL FOR TUNING RESONANCE OF PULSE TUBE
    • CRYOCOOLER具有可调谐脉冲调谐共振器的可变长度通道
    • EP2895801A1
    • 2015-07-22
    • EP13838026.6
    • 2013-07-15
    • Raytheon Company
    • BELLIS, Lowell, A.GOODEN, Dominic, R.ELLIS, Michael, J.
    • F25B9/00
    • F25B9/145F25B2309/1411F25B2309/1423
    • A system includes a pulse tube, a compressor configured to create pulses of fluid in the pulse tube, and a surge tank. The surge tank includes a housing that defines a surge volume configured to receive the fluid from the pulse tube. An inertance channel defines a passageway through which the fluid flows to and from the surge volume. At least part of the inertance channel has an open side to the surge volume. The surge tank also includes an adjustable seal configured to block at least part of the open side of the inertance channel and to move in order to change a functional length of the inertance channel. The housing may include a material having a high coefficient of thermal expansion, and the adjustable seal may include a material having a low coefficient of thermal expansion.
    • 一种系统包括脉冲管,被配置为在脉冲管(112,312)中产生流体脉冲的压缩机(102,202)以及缓冲罐(300)。 缓冲罐包括壳体(302),该壳体限定配置成从脉冲管接收流体的喘振容积(310)。 惯性通道(312)限定流体流入和流出喘振体积的通道。 惯性通道的至少一部分具有喘振体的开放侧。 缓冲罐还包括可调节密封件(316),该可调节密封件被配置为阻挡惯性通道的至少部分开放侧并且移动以改变惯性通道的功能长度。 壳体可以包括具有高热膨胀系数的材料,并且可调密封件可以包括具有低热膨胀系数的材料。