公开(公告)号：US20050083985A1

公开(公告)日：2005-04-21

申请号：US10965205

申请日：2004-10-15

Applicant: Akira Egawa ,  Tsutomu Funakubo ,  Kazuya Ohta

Inventor： Akira Egawa ,  Tsutomu Funakubo ,  Kazuya Ohta

IPC: H01S3/036 ,  F04D29/70 ,  H01S3/22

CPC classification number: F04D29/70

Abstract: A turbo-blower for use with a laser oscillator to provide a flow of a laser medium gas under pressure. The turbo-blower includes an impeller with a rotation axis, the impeller sucking a laser medium gas in an axial direction and discharging the laser medium gas in a radial outward direction; a casing including a gas passage for providing a spiral flow of the laser medium gas discharged from the impeller; and a collecting section provided in the casing and including a chamber fluidly communicated with the gas passage, the collecting section collecting particulates contained in the laser medium gas into the chamber due to a centrifugal force generated in the laser medium gas flowing through the gas passage. The chamber of the collecting section is fluidly communicated with the gas passage through a slit locally formed in a wall of the casing.

Abstract translation: 一种与激光振荡器一起使用以提供激光介质气体在压力下的流动的涡轮鼓风机。 涡轮鼓风机包括具有旋转轴线的叶轮，叶轮沿轴向吸入激光介质气体并沿径向向外排出激光介质气体; 壳体，包括用于提供从叶轮排出的激光介质气体的螺旋流的气体通道; 以及集尘部，其设置在所述壳体中，并且包括与所述气体通路流体连通的室，所述收集部由于在流过所述气体通道的所述激光介质气体中产生的离心力而将包含在所述激光介质气体中的微粒聚集到所述室内。 收集部分的腔室通过局部形成在壳体的壁中的狭缝与气体通道流体连通。

公开(公告)号：US5206873A

公开(公告)日：1993-04-27

申请号：US700174

申请日：1991-05-22

Applicant: Tsutomu Funakubo ,  Norio Karube ,  Kenji Nakahara

Inventor： Tsutomu Funakubo ,  Norio Karube ,  Kenji Nakahara

IPC: F04D21/00 ,  F04D29/04 ,  F04D29/056 ,  F04D29/059 ,  F04D29/58 ,  H01S3/036 ,  H01S3/097

CPC classification number: F04D29/059 ,  F04D29/584 ,  F04D29/5853 ,  H01S3/036

Abstract: A turbo blower is used in combination with a gas laser oscillation device for machining, e.g., cutting off, workpieces. The turbo blower comprises a shaft (2) having an impeller (1) on one end thereof, a pair of bearings (5, 6) on which the shaft (2) is supported, and a motor (3, 4) for rotating the shaft. Heat radiating fins (11) are mounted on the shaft (2) for radiating the heat which is generated by a rotor (3) of the motor, thus preventing the heat from being transmitted to the bearings (5, 6). The heat radiating fins are forcibly cooled by a portion of a laser gas for thereby greatly increasing the heat radiation efficiency. The service life of the grease in the bearings and the bearings themselves is increased, thus reducing an expenditure of labor for grease replenishment and bearing replacement. The bearings are also increased in reliability.

Abstract translation: PCT No.PCT / JP90 / 01227 Sec。 371日期1991年5月22日 102（e）日期1991年5月22日PCT 1990年9月21日PCT PCT。 出版物WO91 / 05384 日期1991年4月18日。涡轮鼓风机与气体激光振荡装置组合使用，用于机械加工，例如切断工件。 涡轮式鼓风机包括在其一端具有叶轮（1）的轴（2），支撑有轴（2）的一对轴承（5,6）和用于使所述轴（2）旋转的马达（3,4） 轴。 热辐射翅片（11）安装在轴（2）上，用于辐射由马达的转子（3）产生的热量，从而防止热量传递到轴承（5,6）。 散热片被一部分激光气体强制冷却，从而大大提高了散热效率。 润滑脂在轴承和轴承本身的使用寿命增加，从而减少润滑脂补充和轴承更换的人力消耗。 轴承的可靠性也提高了。

公开(公告)号：US5060238A

公开(公告)日：1991-10-22

申请号：US455328

申请日：1990-01-16

Applicant: Norio Karube ,  Tsutomu Funakubo

Inventor： Norio Karube ,  Tsutomu Funakubo

IPC: H01S3/097 ,  H01S3/036 ,  H01S3/041 ,  H02K9/00

CPC classification number: H01S3/036

Abstract: A laser oscillator device comprises an electric-discharge tube (1) for producing an electric discharge in a laser gas contained in the electric-discharge tube for laser excitation, an optical resonator (2, 3) for effecting laser oscillation, and a gas circulating device having a gas blower (15) and a cooling unit (8) for forcibly cooling the laser gas. The gas blower (15) has an impeller (16) rotatable in the laser gas. An electric motor for driving the turbo impeller has a stator (20) cooled by thermal contact with a water-cooled medium (25) or an air-cooled medium, and a rotor (19) cooled by contact with a gas flowing between the rotor (19) and the stator (20). The motor for driving the turbo impeller can thus sufficiently be cooled.

公开(公告)号：US5022039A

公开(公告)日：1991-06-04

申请号：US476411

申请日：1990-05-30

Applicant: Norio Karube ,  Tsutomu Funakubo

Inventor： Norio Karube ,  Tsutomu Funakubo

IPC: F04D29/04 ,  F04D29/059 ,  F04D29/66 ,  F16C27/04 ,  H01S3/036 ,  H02K5/167 ,  H02K5/173

CPC classification number: F04D29/059 ,  F04D29/668 ,  F16C27/04 ,  H01S3/036 ,  H02K5/1672 ,  H02K5/1732

Abstract: A turbo blower for a laser comprises a motor which includes a shaft (17) having a distal end to which a turbo impeller (16) is mounted, a pair of bearings (22,23) for supporting the shaft (17), a rotor (19(, and a stator (20). A squeezed-film damper (36,37) is provided around each of the bearings (22,23), whereby vibration of the blower is damped. The damping coefficient of the squeezed-film dampers (36,37) are different from each other, whereby vibration at the bearing is reduced.

Abstract translation: PCT No.PCT / JP89 / 01005 Sec。 371日期1990年5月30日 102（e）日期1990年5月30日PCT提交1989年9月29日PCT公布。 出版物WO90 / 04274 日本1990年04月19日。一种用于激光的涡轮鼓风机包括电动机，其包括具有安装涡轮叶轮（16）的远端的轴（17），一对用于支撑涡轮叶轮 轴（17），转子（19（和定子）），在每个轴承（22,23）周围设置有挤压薄膜阻尼器（36,37），由此减振鼓风机的振动。 挤压膜阻尼器（36,37）的阻尼系数彼此不同，从而减小了轴承的振动。

公开(公告)号：US5285457A

公开(公告)日：1994-02-08

申请号：US965402

申请日：1992-12-18

Applicant: Tsutomu Funakubo ,  Kenji Nakahara

Inventor： Tsutomu Funakubo ,  Kenji Nakahara

IPC: G01H17/00 ,  H01S3/03 ,  H01S3/036 ,  H01S3/097 ,  H01S3/00 ,  H01S3/22

CPC classification number: H01S3/036 ,  F16C19/527

Abstract: The present invention relates to an apparatus for detecting an abnormal bearing condition of a blower utilized for gas laser equipment, and the purpose of the invention is to immediately find abnormal bearing conditions of the blower as a result of lubrication failures. The apparatus for detecting an abnormal bearing condition of a blower utilized for gas laser equipment is characterized in that it comprises a vibration sensor(2 ) that detects vibration of the bearing mounted at the blower(1) and outputs a vibration detected signal FIS; an amplifier(3) that amplifies the vibration detected signal FIS received from the vibration sensor(2); a comparator(4) that discriminates whether an amplified vibration detected signal FOS exceeds a determined value or not, and outputs an abnormal signal PS when it exceeds the determined value; an alarm command means(5) that outputs an alarm command signal AS when the number of the abnormal signal PS output from the comparator(4) during a determined interval exceeds a determined number; and an alarm display means(6) that displays an alarm when the alarm command signal AS is sent from the alarm command means(5 ).

Abstract translation: PCT No.PCT / JP92 / 00551 Sec。 371日期1992年12月18日 102（e）日期1992年12月18日PCT 1992年4月27日PCT PCT。 WO92 / 20126 PCT公开号 本发明涉及一种用于检测用于气体激光设备的鼓风机异常轴承状况的装置，本发明的目的是立即发现由于润滑而导致鼓风机的异常轴承状况 失败。 用于检测用于气体激光设备的鼓风机的异常轴承状况的装置的特征在于它包括一个检测安装在鼓风机（1）上的轴承的振动并输出振动检测信号FIS的振动传感器（2） 放大器（3），放大从振动传感器（2）接收的振动检测信号FIS; 鉴别放大振动检测信号FOS是否超过确定值的比较器（4），当异常信号PS超过确定值时，输出异常信号PS; 当在确定的间隔期间从比较器（4）输出的异常信号PS的数量超过确定的数量时，输出报警命令信号AS的报警指令装置（5） 以及当从报警命令装置（5）发送报警命令信号AS时，显示报警的报警显示装置（6）。

公开(公告)号：US5124997A

公开(公告)日：1992-06-23

申请号：US582206

申请日：1990-10-01

Applicant: Tsutomu Funakubo ,  Norio Karube

Inventor： Tsutomu Funakubo ,  Norio Karube

IPC: F04D29/04 ,  F04D29/056 ,  F04D29/059 ,  F04D29/06 ,  F04D29/063 ,  F16C33/66 ,  H01S3/036 ,  H01S3/097

CPC classification number: F04D29/059 ,  F04D29/063 ,  F16C33/6607 ,  H01S3/036

Abstract: A turbo blower for a laser device, including a shaft having an impeller on one end thereof, a pair of bearings, having inside grease spaces and supporting the shaft Non-contact seal portions are provided for preventing an outflow of grease, whereby other spaces for retaining the grease are formed on either side of the bearings. Although the grease in the inside spaces of the bearings is urged to escape from the bearings by the centrifugal force of the rotation of the shaft, the grease is prevented from flowing out of the spaces on either side of the bearing by the non-contact seal portions.

Abstract translation: PCT No.PCT / JP90 / 00170 Sec。 371 1990年10月1日第 102（e）1990年10月1日PCT 1990年2月9日PCT PCT。 出版物WO90 / 10328 1990年9月7日。一种用于激光装置的涡轮鼓风机，包括在其一端具有叶轮的轴，具有内侧油脂空间并支撑轴的一对轴承非接触密封部分用于防止流出 的润滑脂，由此在轴承的两侧形成用于保持润滑脂的其它空间。 虽然轴承的内部空间中的润滑脂被轴的旋转离心力促使其从轴承中逸出，但是通过非接触式密封件防止润滑脂从轴承的任一侧上的空间流出 部分。

公开(公告)号：US5111474A

公开(公告)日：1992-05-05

申请号：US733011

申请日：1991-07-19

Applicant: Tsutomu Funakubo ,  Norio Karube

Inventor： Tsutomu Funakubo ,  Norio Karube

IPC: F04D29/04 ,  F04D29/056 ,  F04D29/059 ,  H01S3/036 ,  H01S3/097 ,  H01S3/0975

CPC classification number: H01S3/0975 ,  H01S3/036

Abstract: A laser oscillator device comprises an electric-discharge tube for producing an electric discharge in a laser gas contained in the electric-discharge tube for laser excitation, an optical resonator for effecting laser oscillation, and a gas circulating device having a gas blower and a cooling unit for forcibly cooling the laser gas. The gas blower has an impeller that is rotatable in the laser gas and bearings that are lubricated by grease. With this arrangement, contamination of the optical parts is prevented and the device can easily be maintained.