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1. 发明授权

US07708538B2 Oil free screw compressor 有权
标题翻译：无油螺杆压缩机
公开(公告)号：US07708538B2
公开(公告)日：2010-05-04
申请号：US11779910
申请日：2007-07-19
申请人： Natsuki Kawabata , Hitoshi Nishimura , Yusuke Nagai
发明人： Natsuki Kawabata , Hitoshi Nishimura , Yusuke Nagai
IPC分类号： F01C21/04 , F01C21/06 , F03C2/00
CPC分类号： F04C18/16 , F04C23/00 , F04C29/04
摘要： The invention downsizes and simplifies structures of a compressor and its driving system apparatus, and achieves a reduction of a noise. An oil free screw compressor is constituted by compressor main bodies compressing a gas, a motor driving rotors of the compressor main bodies via step-up gears, a gear casing storing the step-up gears, cooling apparatuses cooling a discharge air and the like. An oil tank is provided independently from the gear casing, the motor is fixed to a common base, the gear casing is integrally attached to the motor via a flange, and the compressor main bodies are integrally attached to the gear casing via the flange. Further, the cooling apparatuses are arranged in an upper side of the driving system apparatus, and a cooling fan is installed in an upper side thereof.
摘要翻译：本发明缩小了并简化了压缩机及其驱动系统装置的结构，并且实现了噪音的降低。无油螺杆式压缩机由压缩气体的压缩机主体，经由升压齿轮驱动压缩机主体的转子，存储升压齿轮的齿轮箱，冷却排出空气的冷却装置等构成。独立于齿轮箱设置油箱，马达固定在公共基座上，齿轮箱通过凸缘一体地安装在马达上，压缩机主体通过凸缘一体地安装在齿轮箱上。此外，冷却装置布置在驱动系统装置的上侧，并且冷却风扇安装在其上侧。

2. 发明授权

US09057374B2 Oilless screw compressor and compressed air cooling unit 有权
标题翻译：无油螺杆压缩机和压缩空气冷却装置
公开(公告)号：US09057374B2
公开(公告)日：2015-06-16
申请号：US13164320
申请日：2011-06-20
申请人： Hideki Fujimoto , Hitoshi Nishimura , Natsuki Kawabata
发明人： Hideki Fujimoto , Hitoshi Nishimura , Natsuki Kawabata
IPC分类号： F01C21/04 , F03C2/00 , F04C18/16 , F04C23/00 , F04C28/06 , F04C29/04 , F04C29/06
CPC分类号： F04C18/16 , F04C23/001 , F04C28/06 , F04C29/04 , F04C29/06 , F04C2220/12 , F04C2240/30 , F04C2270/19 , F04C2270/80
摘要： An oilless screw compressor incorporating water-cooled cooling units for cooling compressed air discharged from compressor bodies having a pair of male and female screw rotors which can be rotated in a contactless and oilless manner, the cooling units comprising a plate type heat-exchanger, and the amount of cooling water for the plate type heat-exchanger being adjustable. With this configuration, a difference between a temperature during load operation and a temperature upon automatic stopping and during unload operation of the compressor can be reduced, so that the cooling unit can be restrained from being damaged or broken within a short period, thereby it is possible to provide a highly reliable oilless screw compressor.
摘要翻译：一种无油螺旋压缩机，其包括用于冷却从压缩机主体排出的压缩空气的水冷式冷却单元，所述压缩机具有可以非接触和无油的方式旋转的一对公螺纹转子和内螺纹转子，所述冷却单元包括板式热交换器，以及板式热交换器的冷却水量可调。通过这样的结构，能够减少负荷运转时的温度与自动停止时的温度，压缩机的卸载运转时的温度的差异，能够在短时间内抑制冷却装置的损坏或破损，可能提供高可靠性的无油螺杆压缩机。

3. 发明授权

US07988435B2 Oilless screw compressor and compressed air cooling unit 有权
标题翻译：无油螺杆压缩机和压缩空气冷却装置
公开(公告)号：US07988435B2
公开(公告)日：2011-08-02
申请号：US11752319
申请日：2007-05-23
申请人： Hideki Fujimoto , Hitoshi Nishimura , Natsuki Kawabata
发明人： Hideki Fujimoto , Hitoshi Nishimura , Natsuki Kawabata
IPC分类号： F01C21/04 , F03C2/00
CPC分类号： F04C18/16 , F04C23/001 , F04C28/06 , F04C29/04 , F04C29/06 , F04C2220/12 , F04C2240/30 , F04C2270/19 , F04C2270/80
摘要： An oilless screw compressor incorporating water-cooled cooling units for cooling compressed air discharged from compressor bodies having a pair of male and female screw rotors which can be rotated in a contactless and oilless manner, the cooling units comprising a plate type heat-exchanger, and the amount of cooling water for the plate type heat-exchanger being adjustable. With this configuration, a difference between a temperature during load operation and a temperature upon automatic stopping and during unload operation of the compressor can be reduced, so that the cooling unit can be restrained from being damaged or broken within a short period, thereby it is possible to provide a highly reliable oilless screw compressor.
摘要翻译：一种无油螺旋压缩机，其包括用于冷却从压缩机主体排出的压缩空气的水冷式冷却单元，所述压缩机具有可以非接触和无油的方式旋转的一对公螺纹转子和内螺纹转子，所述冷却单元包括板式热交换器，以及板式热交换器的冷却水量可调。通过这样的结构，能够减少负荷运转时的温度与自动停止时的温度，压缩机的卸载运转时的温度的差异，能够在短时间内抑制冷却装置的损坏或破损，可能提供高可靠性的无油螺杆压缩机。

4. 发明申请

US20080089795A1 Water-Injected Compressor 有权
标题翻译：注水压缩机
公开(公告)号：US20080089795A1
公开(公告)日：2008-04-17
申请号：US11844053
申请日：2007-08-23
申请人： Fumio Takeda , Hitoshi Nishimura , Natsuki Kawabata , Masakazu Aoki
发明人： Fumio Takeda , Hitoshi Nishimura , Natsuki Kawabata , Masakazu Aoki
IPC分类号： F04B39/06
CPC分类号： F04B39/062 , F04C18/16 , F04C29/0014 , F04C29/021 , F04C29/026 , F04C2210/62 , F04C2280/02
摘要： A water-injected compressor, which injects the water inside the separator 3 into the compressor and discharges the water along with compressed air into the separator and then gains condensed and separated water, has the compressor stopping and then, if staying at a stop for a predetermined duration of time without activating, becoming activated and operating for a set duration of time.
摘要翻译：注水压缩机将分离器3内的水注入压缩机，并将水与压缩空气一起排放到分离器中，然后获得冷凝和分离的水，使压缩机停止，然后如果停留在预定的持续时间，而不激活，变得激活并在一定时间内运行。

5. 发明申请

US20080166253A1 Oilless Screw Compressor 有权
标题翻译：无油螺杆压缩机
公开(公告)号：US20080166253A1
公开(公告)日：2008-07-10
申请号：US11752319
申请日：2007-05-23
申请人： Hideki Fujimoto , Hitoshi Nishimura , Natsuki Kawabata
发明人： Hideki Fujimoto , Hitoshi Nishimura , Natsuki Kawabata
IPC分类号： F01C1/16
CPC分类号： F04C18/16 , F04C23/001 , F04C28/06 , F04C29/04 , F04C29/06 , F04C2220/12 , F04C2240/30 , F04C2270/19 , F04C2270/80
摘要： An oilless screw compressor incorporating water-cooled cooling units for cooling compressed air discharged from compressor bodies having a pair of male and female screw rotors which can be rotated in a contactless and oilless manner, the cooling units comprising a plate type heat-exchanger, and the amount of cooling water for the plate type heat-exchanger being adjustable. With this configuration, a difference between a temperature during load operation and a temperature upon automatic stopping and during unload operation of the compressor can be reduced, so that the cooling unit can be restrained from being damaged or broken within a short period, thereby it is possible to provide a highly reliable oilless screw compressor.
摘要翻译：一种无油螺旋压缩机，其包括用于冷却从压缩机主体排出的压缩空气的水冷式冷却单元，所述压缩机具有可以非接触和无油的方式旋转的一对公螺纹转子和内螺纹转子，所述冷却单元包括板式热交换器，以及板式热交换器的冷却水量可调。通过这样的结构，能够减少负荷运转时的温度与自动停止时的温度，压缩机的卸载运转时的温度的差异，能够在短时间内抑制冷却装置的损坏或破损，可能提供高可靠性的无油螺杆压缩机。

6. 发明授权

US08459957B2 Water-injected compressor 有权
标题翻译：注水压缩机
公开(公告)号：US08459957B2
公开(公告)日：2013-06-11
申请号：US11844053
申请日：2007-08-23
申请人： Fumio Takeda , Hitoshi Nishimura , Natsuki Kawabata , Masakazu Aoki
发明人： Fumio Takeda , Hitoshi Nishimura , Natsuki Kawabata , Masakazu Aoki
IPC分类号： F04B49/00
CPC分类号： F04B39/062 , F04C18/16 , F04C29/0014 , F04C29/021 , F04C29/026 , F04C2210/62 , F04C2280/02
摘要： A water-injected compressor, which injects the water inside the separator 3 into the compressor and discharges the water along with compressed air into the separator and then gains condensed and separated water, has the compressor stopping and then, if staying at a stop for a predetermined duration of time without activating, becoming activated and operating for a set duration of time.
摘要翻译：注水压缩机将分离器3内的水注入压缩机，并将水与压缩空气一起排放到分离器中，然后获得冷凝和分离的水，使压缩机停止，然后如果停留在预定的持续时间，而不激活，变得激活并在一定时间内运行。

7. 发明申请

US20110243781A1 OILLESS SCREW COMPRESSOR AND COMPRESSED AIR COOLING UNIT 审中-公开
标题翻译：无油螺杆压缩机和压缩空气冷却单元
公开(公告)号：US20110243781A1
公开(公告)日：2011-10-06
申请号：US13164320
申请日：2011-06-20
申请人： Hideki FUJIMOTO , Hitoshi Nishimura , Natsuki Kawabata
发明人： Hideki FUJIMOTO , Hitoshi Nishimura , Natsuki Kawabata
IPC分类号： F01C1/16
CPC分类号： F04C18/16 , F04C23/001 , F04C28/06 , F04C29/04 , F04C29/06 , F04C2220/12 , F04C2240/30 , F04C2270/19 , F04C2270/80
摘要： An oilless screw compressor incorporating water-cooled cooling units for cooling compressed air discharged from compressor bodies having a pair of male and female screw rotors which can be rotated in a contactless and oilless manner, the cooling units comprising a plate type heat-exchanger, and the amount of cooling water for the plate type heat-exchanger being adjustable. With this configuration, a difference between a temperature during load operation and a temperature upon automatic stopping and during unload operation of the compressor can be reduced, so that the cooling unit can be restrained from being damaged or broken within a short period, thereby it is possible to provide a highly reliable oilless screw compressor.
摘要翻译：一种无油螺旋压缩机，其包括用于冷却从压缩机主体排出的压缩空气的水冷式冷却单元，所述压缩机具有可以非接触和无油的方式旋转的一对公螺纹转子和内螺纹转子，所述冷却单元包括板式热交换器，以及板式热交换器的冷却水量可调。通过这样的结构，能够减少负荷运转时的温度与自动停止时的温度，压缩机的卸载运转时的温度的差异，能够在短时间内抑制冷却装置的损坏或破损，可能提供高可靠性的无油螺杆压缩机。

8. 发明申请

US20100135840A1 SCREW COMPRESSOR 有权
标题翻译：螺旋压缩机
公开(公告)号：US20100135840A1
公开(公告)日：2010-06-03
申请号：US12533688
申请日：2009-07-31
申请人： Hideki FUJIMOTO , Hitoshi Nishimura , Yusuke Nagai
发明人： Hideki FUJIMOTO , Hitoshi Nishimura , Yusuke Nagai
IPC分类号： F01C1/16 , F04B17/00
CPC分类号： F04C29/04 , F04B39/0033 , F04C18/16 , F04C23/00 , F04C23/001 , F04C29/045 , F04C29/06
摘要： A screw compressor comprising: a pair of male and female screw rotors; and an air-cooled heat exchanger, wherein the air-cooled heat exchanger is provided above a motor for driving the compressor body; wherein, with respect to a cooling wind for the air-cooled heat exchanger, the air-cooled heat exchanger is inclined to the upstream side; wherein the uppermost portion of a unit suction port for the air-cooled heat exchanger cooling winds is positioned below the uppermost portion of the air-cooled heat exchanger positioned at the uppermost portion; wherein the lowermost portion of the unit suction port for the air-cooled heat exchanger cooling wind is positioned below the lowermost portion of the air-cooled heat exchanger positioned at the lowermost portion; and wherein the cooling wind for the air-cooled heat exchanger is exhausted from a ceiling portion of the compressor unit. With this structure, it becomes possible to provide a compact screw compressor with less noise whose installation area can be reduced.
摘要翻译：一种螺杆式压缩机，包括：一对公螺纹转子和内螺纹转子; 以及空气冷却热交换器，其中所述风冷式热交换器设置在用于驱动所述压缩机主体的马达上方; 其中，对于风冷式热交换器的冷却风，风冷式热交换器向上游侧倾斜，其特征在于，所述风冷式热交换器的冷却风的单元吸入口的最上部位于位于所述最上部的所述风冷式热交换器的最上部，其中用于风冷式热交换器冷却风的单元吸入口的最下部位于位于最下部的空气冷却热交换器的最下部的下方; 并且其中所述风冷式热交换器的冷却风从所述压缩机单元的顶部排出。利用这种结构，可以提供一种噪音较小的紧凑型螺旋压缩机，其安装面积可以减小。

9. 发明授权

US08313312B2 Screw compressor 有权
标题翻译：螺杆压缩机
公开(公告)号：US08313312B2
公开(公告)日：2012-11-20
申请号：US12533688
申请日：2009-07-31
申请人： Hideki Fujimoto , Hitoshi Nishimura , Yusuke Nagai
发明人： Hideki Fujimoto , Hitoshi Nishimura , Yusuke Nagai
IPC分类号： F04B39/02
CPC分类号： F04C29/04 , F04B39/0033 , F04C18/16 , F04C23/00 , F04C23/001 , F04C29/045 , F04C29/06
摘要： A screw compressor comprising: a pair of male and female screw rotors; and an air-cooled heat exchanger, wherein the air-cooled heat exchanger is provided above a motor for driving the compressor body; wherein, with respect to a cooling wind for the air-cooled heat exchanger, the air-cooled heat exchanger is inclined to the upstream side; wherein the uppermost portion of a unit suction port for the air-cooled heat exchanger cooling winds is positioned below the uppermost portion of the air-cooled heat exchanger positioned at the uppermost portion; wherein the lowermost portion of the unit suction port for the air-cooled heat exchanger cooling wind is positioned below the lowermost portion of the air-cooled heat exchanger positioned at the lowermost portion; and wherein the cooling wind for the air-cooled heat exchanger is exhausted from a ceiling portion of the compressor unit. With this structure, it becomes possible to provide a compact screw compressor with less noise whose installation area can be reduced.
摘要翻译：一种螺杆式压缩机，包括：一对公螺纹转子和内螺纹转子; 以及空气冷却热交换器，其中所述风冷式热交换器设置在用于驱动所述压缩机主体的马达上方; 其中，对于风冷式热交换器的冷却风，风冷式热交换器向上游侧倾斜，其特征在于，所述风冷式热交换器的冷却风的单元吸入口的最上部位于位于所述最上部的所述风冷式热交换器的最上部，其中用于风冷式热交换器冷却风的单元吸入口的最下部位于位于最下部的空气冷却热交换器的最下部的下方; 并且其中所述风冷式热交换器的冷却风从所述压缩机单元的顶部排出。利用这种结构，可以提供一种噪音较小的紧凑型螺旋压缩机，其安装面积可以减小。

10. 发明授权

US08592715B2 Hybrid welding method and hybrid welding apparatus 有权
标题翻译：混合焊接方法和混合焊接装置
公开(公告)号：US08592715B2
公开(公告)日：2013-11-26
申请号：US12937791
申请日：2008-11-27
申请人： Jingbo Wang , Hitoshi Nishimura
发明人： Jingbo Wang , Hitoshi Nishimura
IPC分类号： B23K26/00 , B23K9/00
CPC分类号： B23K28/02 , B23K9/091 , B23K9/173 , B23K26/0604 , B23K26/0608 , B23K26/348 , B23K2103/10
摘要： A first laser beam is radiated to a first radiation position of a welding object while intersecting a wire, and a second laser beam is radiated to a second radiation position that is spaced a predetermined distance from a target position of the wire. Arc welding is performed between the wire and the welding object while radiating the first laser beam and the second laser beam such that the first radiation position, the second radiation position, and the target position are disposed on a welding line of the welding object. In this way, it is possible to prevent the generation of spatter and perform welding at a high rate, without increasing the size of a molten pool.
摘要翻译：第一激光束被辐射到焊接对象的第一辐射位置，同时与线相交，并且第二激光束被辐射到与线的目标位置隔开预定距离的第二辐射位置。在第一激光束和第二激光束照射第一辐射位置，第二辐射位置和目标位置之间，在焊丝对象的焊接线上设置电弧焊接。以这种方式，可以防止飞溅物的产生，并且在不增加熔池的尺寸的情况下以高速率进行焊接。

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