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1.发明授权公开(公告)号：US10648477B2
公开(公告)日：2020-05-12
申请号：US15533980
申请日：2015-10-06
Applicant: Mitsubishi Heavy Industries, Ltd.
Inventor： Tadashi Yoshida , Shinji Ogawa , Koichi Sakamoto , Yukihiro Iwasa
Abstract: A state observation device (30) uses an ADC (37) to digitize a detection signal from a gap sensor (21) at a low-speed sampling period and uses a separation unit (38) to separate the digitized detection signal into vane detection signals considered to be for the detection of a vane of a compressor impeller and non-vane detection signals considered not to be for the detection of a vane. Further, the determination unit (39) extracts a vane peak detection signal considered to be for a vane peak by comparing a vane detection signal with vane detection signals corresponding to other vanes and non-vane detection signals, and a shaft vibration and tip clearance are determined as states of the compressor impeller on the basis of the extracted vane peak detection signal. Thus, the state observation device (30) is capable of observing the state of a rotary machine without carrying out high-speed sampling.
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公开(公告)号：US20180223871A1
公开(公告)日：2018-08-09
申请号：US15748386
申请日：2017-01-31
Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
Inventor： Satoshi Makino , Yukihiro Iwasa , Yasuhiro Wada
CPC classification number: F04D29/663 , F01D21/045 , F02B33/40 , F02B37/00 , F02B39/00 , F02M35/1288 , F04D17/10 , F04D29/4213 , F04D29/4226 , F04D29/44 , F04D29/441 , F04D29/624 , F04D29/66
Abstract: A compression device includes a centrifugal compressor and a silencer. The centrifugal compressor includes a compressor assembly bolt fastening an inlet side of an inlet guide to a scroll casing. The silencer includes: a first side wall extending in a direction intersecting with a rotational axis of an impeller; an annular second side wall provided between the first side wall and the centrifugal compressor and surrounding the rotational axis; at least one silencer element provided in an ambient-air introduction space formed between the first side wall and the second side wall for guiding an ambient air to the inlet guide; and a silencer assembly bolt extending from the first side wall to the scroll casing in a direction along the rotational axis of the impeller and fastening the first side wall, the second side wall, and the scroll casing.
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公开(公告)号：US11359647B2
公开(公告)日：2022-06-14
申请号：US15748386
申请日：2017-01-31
Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
Inventor： Satoshi Makino , Yukihiro Iwasa , Yasuhiro Wada
IPC: F04D29/66 , F04D29/44 , F04D29/42 , F04D29/62 , F02M35/12 , F04D17/10 , F02B39/00 , F01D21/04 , F02B33/40 , F02B37/00
Abstract: A compression device includes a centrifugal compressor and a silencer. The centrifugal compressor includes a compressor assembly bolt fastening an inlet side of an inlet guide to a scroll casing. The silencer includes: a first side wall extending in a direction intersecting with a rotational axis of an impeller; an annular second side wall provided between the first side wall and the centrifugal compressor and surrounding the rotational axis; at least one silencer element provided in an ambient-air introduction space formed between the first side wall and the second side wall for guiding an ambient air to the inlet guide; and a silencer assembly bolt extending from the first side wall to the scroll casing in a direction along the rotational axis of the impeller and fastening the first side wall, the second side wall, and the scroll casing.
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4.发明申请
公开(公告)号：US20170342993A1
公开(公告)日：2017-11-30
申请号：US15533980
申请日：2015-10-06
Applicant: Mitsubishi Heavy Industries, Ltd.
Inventor： Tadashi Yoshida , Shinji Ogawa , Koichi Sakamoto , Yukihiro Iwasa
CPC classification number: F04D27/001 , F02B33/40 , F02B37/00 , F02C7/00 , F04D29/284 , F04D29/4206 , G01B7/14 , G01M99/00 , Y02T10/144
Abstract: A state observation device (30) uses an ADC (37) to digitize a detection signal from a gap sensor (21) at a low-speed sampling period and uses a separation unit (38) to separate the digitized detection signal into vane detection signals considered to be for the detection of a vane of a compressor impeller and non-vane detection signals considered not to be for the detection of a vane. Further, the determination unit (39) extracts a vane peak detection signal considered to be for a vane peak by comparing a vane detection signal with vane detection signals corresponding to other vanes and non-vane detection signals, and a shaft vibration and tip clearance are determined as states of the compressor impeller on the basis of the extracted vane peak detection signal. Thus, the state observation device (30) is capable of observing the state of a rotary machine without carrying out high-speed sampling.
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公开(公告)号：US11199201B2
公开(公告)日：2021-12-14
申请号：US15745504
申请日：2017-01-18
Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
Inventor： Satoshi Makino , Koichi Sugimoto , Fumito Hiratani , Yukihiro Iwasa , Yoshihisa Ono
Abstract: An impeller back surface cooling structure for cooling a back surface of a compressor impeller of a supercharger includes: a first member facing a back surface of a compressor impeller via a gap; and a second member extending in a circumferential direction of the compressor impeller and forming, between the first member and the second member, a cooling passage through which a cooling medium being a liquid flows.
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公开(公告)号：US20180216633A1
公开(公告)日：2018-08-02
申请号：US15745504
申请日：2017-01-18
Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
Inventor： Satoshi Makino , Koichi Sugimoto , Fumito Hiratani , Yukihiro Iwasa , Yoshihisa Ono
CPC classification number: F04D29/584 , F01D25/12 , F02B39/00 , F02B39/005 , F02B39/14 , F02B39/16 , F04D29/4206 , F04D29/441 , F04D29/5853
Abstract: An impeller back surface cooling structure for cooling a back surface of a compressor impeller of a supercharger includes: a first member facing a back surface of a compressor impeller via a gap; and a second member extending in a circumferential direction of the compressor impeller and forming, between the first member and the second member, a cooling passage through which a cooling medium being a liquid flows.
