公开(公告)号：US06196006B1

公开(公告)日：2001-03-06

申请号：US09320646

申请日：1999-05-27

申请人： Shin Kawano ,  Shaowei Zhu ,  Masafumi Nogawa ,  Tatsuo Inoue

发明人： Shin Kawano ,  Shaowei Zhu ,  Masafumi Nogawa ,  Tatsuo Inoue

IPC分类号： F25B900

CPC分类号： F25B9/145 ,  F25B9/10 ,  F25B2309/1407 ,  F25B2309/1408 ,  F25B2309/1412 ,  F25B2309/1418 ,  F25B2309/1424 ,  F25D19/006

摘要： A higher temperature end of a pulse tube is connected to a lower side of a supporting member so as to position at a lower temperature end of the pulse tube at a lower position. Such a structure prevents free convection of a working gas in the pulse tube, which is a cause of reduced refrigerating efficiency. If a cold head is desired to be contacted with a member to be cooled down from its (lower) side, such a need can be satisfied by mounting the cold head on the lower temperature end of the pulse tube (a lower temperature end of a regenerator).

摘要翻译： 脉冲管的较高温度端连接到支撑构件的下侧，以便在较低位置处位于脉管的较低温度端。 这种结构防止脉冲管中的工作气体的自由对流，这是降低制冷效率的原因。 如果希望冷头与从其（下）侧冷却的构件接触，则可以通过将冷头安装在脉冲管的较低温度端（即， 再生器）。

公开(公告)号：US06094921A

公开(公告)日：2000-08-01

申请号：US135797

申请日：1998-08-18

申请人： Shaowei Zhu ,  Shin Kawano ,  Tatsuo Inoue ,  Masafumi Nogawa

发明人： Shaowei Zhu ,  Shin Kawano ,  Tatsuo Inoue ,  Masafumi Nogawa

IPC分类号： F25B9/00 ,  F25B9/14

CPC分类号： F25B9/145 ,  F25B2309/1408 ,  F25B2309/1411 ,  F25B2309/1418 ,  F25B2309/14181 ,  F25B2309/1424 ,  F25B2309/14241

摘要： A pulse tube refrigerator includes a regenerator including a cold end and a hot end, a cold head connected to the cold end of the regenerator, a pulse tube having a cold end and a hot end and connected at its cold end to the cold head, a pressure fluctuation source connected to the hot end of the regenerator, a buffer connected to the hot end of the pulse tube through an orifice, and an auxiliary buffer connected to the hot end of the pulse tube through a buffer side control valve. The buffer and the auxiliary buffer may be replaced by a single buffer connected to the hot end of the pulse tube through an orifice and a buffer side control valve which are arranged in parallel.

摘要翻译： 脉冲管式冰箱包括冷端和热端的再生器，连接到再生器的冷端的冷头，具有冷端和热端的脉冲管，其冷端连接到冷头， 连接到再生器的热端的压力波动源，通过孔连接到脉冲管的热端的缓冲器，以及通过缓冲侧控制阀连接到脉冲管的热端的辅助缓冲器。 缓冲器和辅助缓冲器可以由连接到脉冲管的热端的单个缓冲器通过并联布置的孔口和缓冲侧控制阀代替。

公开(公告)号：US06393845B1

公开(公告)日：2002-05-28

申请号：US09698051

申请日：2000-10-30

申请人： Masafumi Nogawa ,  Shin Kawano ,  Shaowei Zhu ,  Tatsuo Inoue

发明人： Masafumi Nogawa ,  Shin Kawano ,  Shaowei Zhu ,  Tatsuo Inoue

IPC分类号： F25B900

CPC分类号： F25B9/145 ,  F25B2309/1407 ,  F25B2309/1411 ,  F25B2309/1418 ,  F25B2309/1423 ,  F25B2309/1424 ,  F25B2309/1427

摘要： A pulse tube refrigerator which reduces valve losses in a cycle and improves refrigeration efficiency includes a pressure oscillator, a refrigerating portion, a first middle pressure buffer tank, a first middle pressure buffer side valve, a second middle pressure buffer tank and a second middle pressure buffer side valve. A regenerator in the refrigerating portion and an outlet port and an inlet port of a compressor in the pressure oscillator are connected via a high pressure valve and a low pressure valve respectively. A high temperature heat exchanger of the refrigerating portion and the first middle pressure buffer tank and the second middle pressure buffer tank are connected via the first middle pressure buffer side valve and the second middle pressure buffer side valve. The first middle pressure buffer tank and the second middle pressure buffer tank include different middle pressures which are predetermined between an output pressure and an input pressure of the compressor.

摘要翻译： 一种减少循环中的阀门损耗并提高制冷效率的脉冲管制冷器包括压力振荡器，制冷部分，第一中压缓冲罐，第一中压缓冲侧阀，第二中压缓冲罐和第二中压 缓冲侧阀。 冷冻部分中的再生器和压力振荡器中的压缩机的出口和入口分别经由高压阀和低压阀连接。 冷冻部分和第一中压缓冲罐和第二中压缓冲罐的高温热交换器经由第一中压缓冲侧阀和第二中压缓冲侧阀连接。 第一中压缓冲罐和第二中压缓冲箱包括在压缩机的输出压力和输入压力之间预定的不同中压。

公开(公告)号：US06389819B1

公开(公告)日：2002-05-21

申请号：US09665660

申请日：2000-09-20

申请人： Shaowei Zhu ,  Shin Kawano ,  Masafumi Nogawa ,  Tatsuo Inoue

发明人： Shaowei Zhu ,  Shin Kawano ,  Masafumi Nogawa ,  Tatsuo Inoue

IPC分类号： F25B900

CPC分类号： F25B9/145 ,  F25B9/10 ,  F25B2309/1407 ,  F25B2309/1417 ,  F25B2309/1418 ,  F25B2309/14241 ,  F25B2309/1425

摘要： A pulse tube refrigerator includes a compressor, a first heat exchanger, a first regenerator, a first cold head, a first pulse tube, a first radiator, a second regenerator, a second cold head, a second pulse tube, a second radiator, an orifice and a buffer tank which are connected in series. A first cooling part consists of the first heat exchanger, the first regenerator, the first cold head, the first pulse tube and the first radiator. A second cooling part consists of the first radiator, the second regenerator, the second cold head, the second pulse tube and the second radiator. The first radiator forms not only the radiator of the first cooling part, but also the heat exchanger of the second cooling part.

摘要翻译： 脉冲管式冰箱包括压缩机，第一热交换器，第一再生器，第一冷头，第一脉冲管，第一散热器，第二再生器，第二冷头，第二脉冲管，第二散热器， 孔和缓冲罐串联连接。 第一冷却部件由第一热交换器，第一再生器，第一冷头，第一脉冲管和第一散热器组成。 第二冷却部件由第一散热器，第二再生器，第二冷头，第二脉冲管和第二散热器组成。 第一散热器不仅形成第一冷却部件的散热器，而且还形成第二冷却部件的热交换器。

公开(公告)号：US06279324B1

公开(公告)日：2001-08-28

申请号：US09429350

申请日：1999-10-28

申请人： Shaowei Zhu ,  Shin Kawano ,  Masafumi Nogawa ,  Tatsuo Inoue

发明人： Shaowei Zhu ,  Shin Kawano ,  Masafumi Nogawa ,  Tatsuo Inoue

IPC分类号： F25B900

CPC分类号： F25B9/145 ,  F25B9/14 ,  F25B45/00 ,  F25B2309/1411 ,  F25B2309/1418 ,  F25B2309/1424 ,  F25B2400/16

摘要： A heat-regenerating type cryogenic cooling apparatus 101 includes a cryogenic temperature generating part 10 having a heat regenerator 11; and a pressure generating device 30 connected to the part 10, generating pressure vibration of a working gas therein, and having a compressor 31 with a discharging port 31a and a sucking port 31b, a high-pressure line 32 whose one end is in fluid communication with the discharging port 31a of the compressor 31, a low-pressure line 33 whose one end is in fluid communication with the sucking port 31b of the compressor 31, a high-pressure open/close valve 34 connected to the other end of the line 32, a low-pressure open/close valve 35 connected to the other end of the line 33, a high-pressure side line 36 connecting the valve 34 and the 10, a low-pressure side line 37 connecting the valve 35 and the part 10, and a high-pressure side buffer tank 38 as a high-pressure source connected to the midportion of the line 32. At the instant of the opening of the valve 34, the amount of working gas discharged therefrom is the sum of the amount of the working gas discharged from the compressor 31 and the amount of working gas supplied from the high-pressure side buffer tank 38, which prevents lowering pressure in the line 32, thereby improving the cryogenic efficiency.

摘要翻译： 热再生型低温冷却装置101具备：具有发热体11的低温温度发生部10; 以及连接到部件10的压力产生装置30，在其中产生工作气体的压力振动，并且具有带有排出口31a和吸入口31b的压缩机31，一端流体连通的高压管线32 与压缩机31的排出口31a，一端与压缩机31的吸入口31b流体连通的低压管路33，与该管路的另一端连接的高压开闭阀34 32是与管路33的另一端连接的低压开闭阀35，连接阀34和10的高压侧管路36，连接阀35和部件的低压侧管路37 10，以及作为与管线32的中间部分连接的高压源的高压侧缓冲罐38.在阀34的打开时刻，从其排出的工作气体的量为总量 从压缩机31排出的工作气体 从高压侧缓冲罐38供给的工作气体的量，其防止管线32中的压力降低，从而提高低温效率。

公开(公告)号：US06351954B1

公开(公告)日：2002-03-05

申请号：US09694035

申请日：2000-10-23

申请人： Masafumi Nogawa ,  Shaowei Zhu ,  Shin Kawano ,  Tatsuo Inoue

发明人： Masafumi Nogawa ,  Shaowei Zhu ,  Shin Kawano ,  Tatsuo Inoue

IPC分类号： F25B900

CPC分类号： F25B9/145 ,  F25B2309/1407 ,  F25B2309/1411 ,  F25B2309/1418 ,  F25B2309/14241

摘要： A pulse tube refrigerator includes a refrigerating portion including a regenerator, a low temperature heat exchanger, a pulse tube and a high temperature heat exchanger fluidically connected in this order. A first pressure oscillator includes a first compression source, a first high pressure supply valve, and a first low pressure supply valve. The regenerator is connected with outlet and inlet ports of the first compression source via the first high pressure supply valve and the first low pressure supply valve, respectively. A second pressure oscillator is provided independently of the first pressure oscillator and has a second compression source, a second high pressure supply valve, and a second low pressure supply valve. The high temperature heat exchanger is connected with outlet and inlet ports of the second compression source via the second high pressure supply valve and the second low pressure supply valve, respectively.

摘要翻译： 脉冲管式制冷机包括依次流体连接的再生器，低温热交换器，脉冲管和高温热交换器的制冷部。 第一压力振荡器包括第一压缩源，第一高压供应阀和第一低压供应阀。 再生器分别经由第一高压供给阀和第一低压供给阀与第一压缩源的出口和入口连接。 独立于第一压力振荡器提供第二压力振荡器，并具有第二压缩源，第二高压供应阀和第二低压供应阀。 高温热交换器分别经由第二高压供给阀和第二低压供给阀与第二压缩源的出口和入口连接。

公开(公告)号：US06301902B1

公开(公告)日：2001-10-16

申请号：US09539324

申请日：2000-03-30

申请人： Shaowei Zhu ,  Shin Kawano ,  Masafumi Nogawa ,  Tatsuo Inoue

发明人： Shaowei Zhu ,  Shin Kawano ,  Masafumi Nogawa ,  Tatsuo Inoue

IPC分类号： F25B900

CPC分类号： F25B9/145 ,  F25B2309/1407 ,  F25B2309/1411 ,  F25B2309/1418 ,  F25B2309/1424 ,  F25B2309/1426

摘要： A pulse tube refrigerator includes a compressor, a first high pressure valve connected with the compressor, a first high pressure passage connecting the outlet port of the compressor with the first high pressure valve, a first low pressure valve connected with the compressor, first low pressure passage connecting the inlet port of the compressor with the first low pressure valve, a regenerator connected with the first high pressure valve and the first low pressure valve, a cold head connected with the regenerator, a pulse tube connected with the cold head a second high pressure valve connected with the pulse tube. The pulse tube refrigerator further includes a second low pressure valve connected with the pulse tube, a high pressure cylinder provided in the second high pressure passage, a high pressure side partition element reciprocally provided within the high pressure cylinder and fluid tightly dividing the high pressure side cylinder into a first high pressure space and a second high pressure space, a low pressure cylinder provided in the second low pressure passage; and a low pressure side partition element reciprocally provided within the low pressure side cylinder and fluid tightly dividing the low pressure cylinder into a first low pressure space and a second low pressure space.

摘要翻译： 脉冲管式冰箱包括压缩机，与压缩机连接的第一高压阀，连接压缩机的出口与第一高压阀的第一高压通道，与压缩机连接的第一低压阀，第一低压 压缩机的入口与第一低压阀连接的通道，与第一高压阀和第一低压阀连接的再生器，与再生器连接的冷头，与冷头连接的第二高压 压力阀与脉冲管连接。 脉冲管制冷器还包括与脉冲管连接的第二低压阀，设置在第二高压通道中的高压缸，在高压缸内往复设置的高压侧分隔件，并将高压侧流体紧密地分开 气缸成为设置在第二低压通道中的第一高压空间和第二高压空间，低压缸; 以及低压侧分隔件，其往复设置在所述低压侧气缸内，并将所述低压气缸流体紧密地分割成第一低压空间和第二低压空间。

公开(公告)号：US06308520B1

公开(公告)日：2001-10-30

申请号：US09450721

申请日：1999-11-30

申请人： Tatsuo Inoue ,  Masafumi Nogawa ,  Shin Kawano ,  Kimio Aoyama

发明人： Tatsuo Inoue ,  Masafumi Nogawa ,  Shin Kawano ,  Kimio Aoyama

IPC分类号： F25B900

CPC分类号： F25B9/145 ,  F25B2309/002 ,  F25B2309/006 ,  F25B2309/1408 ,  F25B2309/1418 ,  F25B2309/14181 ,  F25B2309/1424 ,  F25B2309/1425

摘要： A multi-type pulse-tube refrigerating system includes a common compressor 1 having a sucking port 1b and a discharging port 1a, a plurality of paralleled pressure changeover valve units 21, 22 and 23 connecting between the sucking port 1b and the discharging port 1a of the compressor 1, and a plurality of pulse-tube based cryogenic temperature generating devices 310, 410 and 510 connected to the respective pressure changeover valve units 21, 22 and 23. Employing such cryogenic temperature generating devices 310, 410 and 510, each of which is void of moving parts, limits vibrations. Moreover, instead of the pressure changeover valve units 21, 22 and 23, employing a common pressure changeover valve unit 24 for the units 21, 22 and 23 makes the refrigerating system more compact.

摘要翻译： 多型脉冲管制冷系统包括具有吸入口1b和排出口1a的通用压缩机1，连接在吸入口1b和排出口1a之间的多个平行的压力转换阀单元21,22和23 压缩机1和连接到相应的压力切换阀单元21,22和23的多个基于脉冲管的低温产生装置310,410和510。使用这样的低温温度发生装置310,410和510，其中每个 没有运动部件，限制振动。 此外，代替压力切换阀单元21,22和23，使用用于单元21,22和23的公共压力切换阀单元24使得制冷系统更紧凑。

公开(公告)号：US07368954B2

公开(公告)日：2008-05-06

申请号：US10535273

申请日：2004-03-04

申请人： Yusuke Otomo ,  Masafumi Nogawa

发明人： Yusuke Otomo ,  Masafumi Nogawa

IPC分类号： H03D13/00

CPC分类号： H03L7/0893 ,  H03L7/0895 ,  H03L7/091 ,  H04L7/033

摘要： Providing a CDR circuit having a stable clock extracting function and a data regenerating function with a high-speed data input process by reducing the operation speed of the phase comparator circuit. With a phase comparator circuit capable of operating with a clock signal whose period is 2 times the unit time width of the inputted data signal, the pulse width of the phase error signal, representing the difference in phase between the transition point of the data signal and the transition point of the clock signal, is extended as much as the unit time width of the data signal.

摘要翻译： 通过降低相位比较器电路的运行速度，提供具有稳定时钟提取功能的CDR电路和具有高速数据输入处理的数据再生功能。 利用相位比较器电路，其能够以周期为输入数据信号的单位时间宽度的2倍的时钟信号进行操作，相位误差信号的脉冲宽度表示数据信号的转变点与 时钟信号的转换点与数据信号的单位时间宽度一样扩展。

公开(公告)号：US09160458B2

公开(公告)日：2015-10-13

申请号：US13981313

申请日：2012-01-25

申请人： Hiroshi Koizumi ,  Masafumi Nogawa ,  Yusuke Ohtomo

发明人： Hiroshi Koizumi ,  Masafumi Nogawa ,  Yusuke Ohtomo

IPC分类号： H04B10/06 ,  H04B10/60 ,  H04B10/69

CPC分类号： H04B10/60 ,  H04B10/69 ,  H04B10/697

摘要： An optical signal detection circuit (10) includes an amplification circuit (11) that differentially amplifies an electrical signal (Tout) corresponding to the pulse train of an optical signal (Pin) and outputs a differential output signal (Aout), and a comparator (12) that compares the voltage value of the positive-phase signal of the differential output signal (Aout) with the voltage value of the negative-phase signal and outputs a pulsed comparison output signal (Cout) corresponding to the comparison result. The amplification circuit (11) includes a current addition circuit (11E) that adjusts a DC load current to generate a positive-phase signal (Aout+) and a negative-phase signal (Aout−) of the differential output signal (Aout) in accordance with an adjusted voltage value from an external adjusted voltage source (Vadj) and adjusts the DC bias of the positive-phase signal (Aout+) and the DC bias of the negative-phase signal (Aout−).

摘要翻译： 光信号检测电路（10）包括对与光信号（Pin）的脉冲序列相对应的电信号（Tout）进行差分放大并输出差分输出信号（Aout）的放大电路（11）和比较器 12），其将差分输出信号（Aout）的正相信号的电压值与负相位信号的电压值进行比较，并输出与比较结果对应的脉冲比较输出信号（Cout）。 放大电路（11）包括电流相加电路（11E），该电流相加电路（11E）调节直流负载电流，以产生差分输出信号（Aout）的正相信号（Aout +）和负相位信号（Aout-） 具有来自外部调整电压源（Vadj）的调整电压值，并调节正相信号（Aout +）的直流偏置和负相位信号（Aout-）的直流偏置。