Patents by Inventor Hiroshi Kanki
Hiroshi Kanki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10578116Abstract: A rotational body 1 includes a rotational shaft 2, an impeller 3, and a nut 6. The impeller includes a hub portion 4 having a peripheral surface 4s inclined to the axial direction of the rotational shaft and having an insert hole 4h in which the rotational shaft is inserted, and a blade portion 5. At least one of the rotational shaft or the insert hole of the hub portion has an interference fit portion 10 for fit between the rotational shaft and the impeller, where the outside diameter of the rotational shaft is larger than the inside diameter of the insert hole of the hub portion. The interference fit portion is formed in a region which does not include the largest outside diameter portion 4B where the hub portion has a largest outside diameter, with the rotational shaft and the impeller mating with each other.Type: GrantFiled: December 11, 2013Date of Patent: March 3, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Noriyuki Hayashi, Makoto Ozaki, Nariaki Seike, Hiroshi Kanki, Hiroshi Suzuki
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Patent number: 9885384Abstract: An object is to provide a floating bush bearing device with excellent oscillation stability and small bearing loss. A floating bush bearing device which rotatably supports a rotation shaft includes: a bearing housing, a floating bush rotatably disposed between the rotation shaft and an inner circumferential surface of the bearing housing, in the bearing housing, and a bush side oil supply hole which is formed through the floating bush and is capable of supplying lubricating oil between the rotation shaft and the inner circumferential surface of the floating bush, the inner circumferential surface of the floating bush has a non-circular shape so that a gap portion is formed between the rotation shaft and the inner circumferential surface of the floating bush, the gap portion having a predetermined clearance or larger regardless of relative positions of the rotation shaft and the inner circumferential surface of the floating bush, and the bush side oil supply hole communicates with the gap portion.Type: GrantFiled: December 19, 2012Date of Patent: February 6, 2018Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Takaya Futae, Hiroshi Kanki, Noriyuki Hayashi, Hideaki Nishida, Shinji Ogawa, Chiaki Yasuda, Yutaka Ozawa
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Publication number: 20160273545Abstract: An object is to provide a rotational body in which a gap is not formed between a rotational shaft and an impeller even during rotation at high speed in the interference fit portion between the rotational shaft and the impeller, and in which misalignment between the center positions of the rotational shaft and the impeller does not arise, and a manufacturing method thereof. A rotational body 1 includes a rotational shaft 2, an impeller 3, and a nut 6. The impeller includes a hub portion 4 having a peripheral surface 4s inclined to the axial direction of the rotational shaft and having an insert hole 4h in which the rotational shaft is inserted, and a blade portion 5. At least one of the rotational shaft or the insert hole of the hub portion has an interference fit portion 10 for fit between the rotational shaft and the impeller, where the outside diameter of the rotational shaft is larger than the inside diameter of the insert hole of the hub portion.Type: ApplicationFiled: December 11, 2013Publication date: September 22, 2016Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Noriyuki HAYASHI, Makoto OZAKI, Nariaki SEIKE, Hiroshi KANKI, Hiroshi SUZUKI
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Publication number: 20150330442Abstract: An object is to provide a floating bush bearing device with excellent oscillation stability and small bearing loss. A floating bush bearing device which rotatably supports a rotation shaft includes: a bearing housing, a floating bush rotatably disposed between the rotation shaft and an inner circumferential surface of the bearing housing, in the bearing housing, and a bush side oil supply hole which is formed through the floating bush and is capable of supplying lubricating oil between the rotation shaft and the inner circumferential surface of the floating bush, the inner circumferential surface of the floating bush has a non-circular shape so that a gap portion is formed between the rotation shaft and the inner circumferential surface of the floating bush, the gap portion having a predetermined clearance or larger regardless of relative positions of the rotation shaft and the inner circumferential surface of the floating bush, and the bush side oil supply hole communicates with the gap portion.Type: ApplicationFiled: December 19, 2012Publication date: November 19, 2015Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Takaya FUTAE, Hiroshi KANKI, Noriyuki HAYASHI, Hideaki NISHIDA, Shinji OGAWA, Chiaki YASUDA, Yutaka OZAWA
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Patent number: 8272838Abstract: An impeller includes an impeller body which rotates about a rotation axis, and a vane which is provided at the impeller body. The impeller body receives force asymmetric with respect to the rotation axis in driving and rotation in a fluid in a manner that radially inward fluid force, which is generated due to arrangement of the vane, acts on a predetermined point in a peripheral direction. In the impeller body, a filled space filled, in a fluid, with the fluid is formed.Type: GrantFiled: July 28, 2009Date of Patent: September 25, 2012Assignee: Shinmaywa Industries, Ltd.Inventors: Kazuki Takeuchi, Hiroshi Kanki, Motonobu Tarui, Nobukazu Tanaka
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Publication number: 20100028156Abstract: An impeller includes an impeller body which rotates about a rotation axis, and a vane which is provided at the impeller body. The impeller body receives force asymmetric with respect to the rotation axis in driving and rotation in a fluid in a manner that radially inward fluid force, which is generated due to arrangement of the vane, acts on a predetermined point in a peripheral direction. In the impeller body, a filled space filled, in a fluid, with the fluid is formed.Type: ApplicationFiled: July 28, 2009Publication date: February 4, 2010Applicant: SHINMAYWA INDUSTRIES, LTD.Inventors: Kazuki TAKEUCHI, Hiroshi KANKI, Motonobu TARUI, Nobukazu TANAKA
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Publication number: 20090263057Abstract: A damper element of the present invention is applied to a bearing damper element disposed between a rotating object and a supporting object. The damper element includes a slit that is formed between an inner surface and an outer surface of an annulus being supported by the supporting object, and a viscous fluid that is filled in the slit. The slit is extended substantially along a circumferential direction of the annulus. The annulus is, for example, an outer ring or an inner ring of a rolling element bearing, a plane bearing, or a collar that holds a bearing.Type: ApplicationFiled: August 14, 2006Publication date: October 22, 2009Inventors: Hiroshi Kanki, Shinobu Saito
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Patent number: 7003947Abstract: A gyro wave-activated power generator utilizing wave energy which has, as a component, a control moment gyro, and which comprises a floating body (1), a control moment gyro (5) supported by the floating body, and a power generator (10) connected to the gimbal shaft of the gyro through a gearing to increase speed(9), and is characterized by the gimbal (6) of the gyro being rotated by the movement of the floating body by wave energy to drive the power generator (10) for power generation.Type: GrantFiled: March 22, 2002Date of Patent: February 28, 2006Assignee: Japan Science and Technology CorporationInventor: Hiroshi Kanki
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Publication number: 20040134190Abstract: A gyro wave-activated power generator utilizing wave energy which has, as a component, a control moment gyro, and which comprises a floating body (1), a control moment gyro (5) supported by the floating body, and a power generator (10) connected to the gimbal shaft of the gyro through a gearing to increase speed(9), and is characterized by the gimbal (6) of the gyro being rotated by the movement of the floating body by wave energy to drive the power generator (10) for power generation.Type: ApplicationFiled: September 22, 2003Publication date: July 15, 2004Inventor: Hiroshi Kanki
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Patent number: 5816098Abstract: A lifting load attitude controlling system includes a lifting load pivoting clutch (20) provided between a gyro frame (1) and a gimbal frame (6) for connecting and disconnecting therebetween. Also, a resetting rotating clutch is provided between a resetting rotation driving portion constituted of a resetting oblique rotation driving motor (19) for rotating a gimbal (8) upon returning the gimbal (8) at an initial position and a worm gear, and the gimbal (8) for connecting and disconnecting therebetween. Upon obliquely rotating the gimbal for returning to the initial position, the resetting rotating clutch is placed in the engaged or connected state and the lifting load pivoting clutch is placed in the disengaged or disconnected state. When the resetting rotation driving motor (19) is driven at this condition, a gyro moment is generated upon obliquely driving the gimbal toward the gyro frame (1) (lifting jig 4) via a variable constant torque motor (19) between the gyro frame (1) and a gimbal frame (6).Type: GrantFiled: October 16, 1996Date of Patent: October 6, 1998Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Hiroshi Kanki, Yoshitsugu Nekomoto, Tatsuya Wakisaka, Yasukuni Kamimura, Atsuhiro Doyama, Shuji Oyagi, Kazunari Fukuda, Yuichi Ikeda, Fumihiro Inoue, Koji Watanabe
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Patent number: 5755622Abstract: A vibration reducer for a diaphragm coupling is capable of suppressing axial vibrations as well as torsional vibrations. A diaphragm pack 3 is mounted between a diaphragm mount flange 2 provided on an intermediate shaft 1 serving as a drive shaft and a shaft flange 4 of another shaft serving as a driven shaft. An elastic arm 5 extends through the diaphragm pack 3 and is mounted to the diaphragm mount flange 2. The elastic arm 5 is a cylindrical member, whose circumferential portion is severed by slits formed by wire-cutting. Free ends 5a of the elastic arm 5 are expanded in the radial directions by centrifugal forces caused by rotation of a shafts and come into pressure-contact with the liner member 8 formed integrally within a cylindrical portion 7 of the shaft flange 4. A part of a torque is thereby transmitted via the pressure-contact portion, and rigidity in the axial direction of the elastic arm 5 is added to that of the diaphragm pack 3 to suppress vibrations.Type: GrantFiled: April 21, 1994Date of Patent: May 26, 1998Assignee: Mitsubish Jukogyo Kabushiki KaishaInventors: Hiroshi Kanki, Tadao Yashiki, Koichi Akagi, Taku Ichiryu
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Patent number: 4660838Abstract: In a sealing device for a rotary machine of the type that an annular groove is provided in an inner circumferential surface of a through-hole of a stationary member through which a rotary body supported rotatably by a bearing device extends, gap spaces between the rotary body and the both side portions of the stationary member on the opposite sides of the annular groove are sealed by seal rings, and a seal fluid feed hole for feeding a sealing fluid into the annular groove is provided in the stationary member; improvements are made in that a vibration suppressing movable ring is accommodated within the annular groove, the movable ring is mounted to the stationary member so as to be movable only in a radial direction so that an outside annular gap clearance may be formed between an outer circumferential surface of the movable ring and an inner circumferential surface of the annular groove and also an inside annular gap clearance may be formed between an inner circumferential surface of an inner hole of the movType: GrantFiled: March 13, 1986Date of Patent: April 28, 1987Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Kazuso Katayama, Yasushi Mori, Hiroshi Kanki, Shigeki Morii, Koji Takeshita, Yutaka Ozawa, Zenichi Yoshida
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Patent number: 4114819Abstract: A bobbin holder shaft is journalled in a bobbin holder shaft support that is, in turn elastically supported relative to a fixed frame. When the support weighs more than the shaft plus the full amount of yarn to be wound thereon, and the lowest order resonant speed is below the operating speed, a high operating speed can be achieved without inducing a resonant vibration even though a pronounced band or ribbon appeared on the wound yarn ball. In a preferred embodiment, the elastic support is provided by axially spaced O-rings and an oil-filled reservoir defined axially between them.Type: GrantFiled: September 13, 1976Date of Patent: September 19, 1978Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Hiroshi Kanki, Kazuyoshi Yasuda, Hisashi Tatsuke