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51. 发明授权

US10961904B2 Turbocharger 有权
公开(公告)号：US10961904B2
公开(公告)日：2021-03-30
申请号：US16098220
申请日：2017-10-26
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Yoshimi Kagimoto , Tatsuya Ishizaki , Yuta Ishii
IPC分类号： F02B39/14 , F01D25/16 , F01D25/18
摘要： A turbocharger for supercharging an internal combustion engine includes: a bearing housing which accommodates a bearing supporting a rotational shaft of the turbocharger; an oil discharge port for discharging lubricant oil stored in an internal space of the bearing housing; an air pocket formed in the oil discharge port or an oil discharge pipe connected to the oil discharge port; and a communication flow passage which brings the air pocket and the internal space into communication.

52. 发明授权

US10954818B2 Turbocharger and engine system 有权
公开(公告)号：US10954818B2
公开(公告)日：2021-03-23
申请号：US15780131
申请日：2015-12-04
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Yoshitomo Noda , Motoki Ebisu , Hiroshi Suzuki
IPC分类号： F01D25/18 , F01D25/12 , F16C33/66 , F16C37/00 , F01D25/20 , F02B39/14 , F16C27/04 , F02B39/00 , F16N7/32 , F16C19/18
摘要： A turbocharger includes: a rotating shaft which extends along an axis; a turbine wheel which is provided on one end side of the rotating shaft; a compressor wheel which is provided on the other end side of the rotating shaft; a rolling bearing which includes an inner race fixed to an outer circumferential surface of the rotating shaft, an outer race surrounding the inner race from an outside in a radial direction, and rolling bodies arranged between the inner race and the outer race and rotatably supports the rotating shaft around the axis; a housing which covers the rolling bearing from an outer circumferential side with a gap between the housing and an outer circumferential surface of the rolling bearing; and a plurality of lubricating oil supply lines through which lubricating oil is supplied to different locations in the housing at different state quantities.

53. 发明申请

US20210062676A1 DRIVING DEVICE, VALVE APPARATUS INCLUDING THE SAME, AND LINK DRIVING MECHANISM FOR TURBOCHARGER 有权
公开(公告)号：US20210062676A1
公开(公告)日：2021-03-04
申请号：US16964830
申请日：2018-01-30
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Tatsuya ISHIZAKI , Yuta ISHII , Takaya FUTAE , Noriyuki HAYASHI
IPC分类号： F01D17/16 , F02B37/18
摘要： A driving device includes: a shaft; and a cylindrical bush having an insertion hole into which the shaft can be inserted. The insertion hole includes an opening portion having an inner diameter decreasing from a first end surface toward a second end surface of the bush, and a small-diameter hole portion extending from an end of the opening portion to the second end surface. The shaft includes a shaft portion having an outer diameter smaller than an inner diameter of the small-diameter hole portion, and an abutment portion having an outer diameter greater than the inner diameter of the small-diameter hole portion. The bush has a sealing surface defining the opening portion. The abutment portion of the shaft abuts on the sealing surface of the bush in an axial direction of the insertion hole to seal a gap formed between the shaft and the bush inside the insertion hole.

54. 发明授权

US10907541B2 Turbine housing, exhaust turbine, and turbocharger 有权
公开(公告)号：US10907541B2
公开(公告)日：2021-02-02
申请号：US16313302
申请日：2016-12-16
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Tsuyoshi Kitamura , Toyotaka Yoshida , Toru Hoshi , Motoki Ebisu
IPC分类号： F02C6/12 , F02B39/00 , F02B37/00 , F02B37/18 , F04D29/58 , F01D17/16
摘要： A turbine housing includes: a housing body which includes a turbine housing part housing a turbine wheel, an inlet section forming an inlet flow passage for guiding exhaust gas to the turbine housing part, an outlet section forming an outlet flow passage for discharging the exhaust gas from the turbine housing part, and a waste-gate flow passage which brings the inlet flow passage and the outlet flow passage into communication so as to bypass the turbine housing part; and a sleeve disposed along an inner wall surface of the housing body forming the waste gate flow passage, at least on a downstream side of the waste-gate flow passage of the housing body with respect to a flow direction of the exhaust gas.

55. 发明申请

US20210018014A1 ROTOR AND CENTRIFUGAL COMPRESSOR INCLUDING THE SAME 有权
公开(公告)号：US20210018014A1
公开(公告)日：2021-01-21
申请号：US17040137
申请日：2018-06-22
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Kenichiro IWAKIRI , Nobuhito OKA , Hironori HONDA
IPC分类号： F04D29/28 , F04D17/10
摘要： A rotor includes: a hub; and a plurality of blades disposed on the hub. Each of the plurality of blades has a suction surface, a pressure surface, a leading edge, a trailing edge, a tip-side edge, and a hub-side edge. The suction surface has a first curved surface portion curved convexly toward the trailing edge such that the trailing edge is inclined to a pressure surface side in a first region which is a partial region, in a blade height direction of the blade, of a region connected to the trailing edge.

56. 发明授权

US10890109B2 Turbocharger 有权
公开(公告)号：US10890109B2
公开(公告)日：2021-01-12
申请号：US16081233
申请日：2016-03-30
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Toyotaka Yoshida , Yosuke Dammoto , Yoji Akiyama
IPC分类号： F02B37/24 , F01D9/02 , F01D17/16 , F02B39/00 , F02C6/12
摘要： This turbocharger (10) comprises a turbine wheel (12), a compressor wheel (13), and a scroll flowpath (34) formed in a turbine housing (31), continuing in the circumferential direction on the radially outer side of the turbine wheel (12), and having gas flowing therethrough that rotates and drives the turbine wheel (12). The scroll flowpath (34) is formed such that: an inner circumferential inside wall surface (34c) on the turbine wheel (12) side is gradually displaced radially outwards, along the direction of gas flow; and the cross-sectional area of the flowpath gradually decreases.

57. 发明申请

US20200378389A1 ELECTRIC SUPERCHARGER 审中-公开
公开(公告)号：US20200378389A1
公开(公告)日：2020-12-03
申请号：US16326640
申请日：2017-03-29
申请人： MITSUBISHI HEAVY INDUSTRIES, LTD. , MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Naomichi SHIBATA , Byeongil AN , Akihiro SUGIYAMA , Yutaka FUJITA , Tadashi KANZAKA
IPC分类号： F04D25/06 , F04D29/10 , F04D29/28 , F04D29/056
摘要： An electric supercharger includes: a compressor impeller; a motor configured to transmit a driving force to the compressor impeller via a rotational shaft; a back-surface side casing facing a back surface of the compressor impeller via a gap and surrounding the rotational shaft; a bearing disposed between the back-surface side casing and the rotational shaft so as to support the rotational shaft rotatably; and a mechanical seal positioned between the back surface of the compressor impeller and the bearing in an axial direction of the compressor impeller and configured to seal a gap between the rotational shaft and the back-surface side casing.

58. 发明授权

US10837373B2 Precombustion chamber gas engine 有权
公开(公告)号：US10837373B2
公开(公告)日：2020-11-17
申请号：US16465368
申请日：2018-01-24
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Daisuke Takemoto , Akihiro Yuuki , Yuuta Furukawa , Kazuo Ogura , Hiroyuki Endo
IPC分类号： F02D41/02 , F02D19/02 , F02D23/02 , F02B19/10 , F02M21/02
CPC分类号： F02D19/02 , F02D23/02 , F02B19/1023 , F02D41/02 , F02D2200/0406 , F02M21/0284
摘要： A precombustion chamber gas engine including a precombustion chamber communicating with a main combustion chamber includes: a precombustion-chamber-fuel supply line through which a precombustion chamber fuel flows; a precombustion-chamber-fuel supply valve connected to the precombustion-chamber-fuel supply line and controlling supply of the precombustion chamber fuel to the precombustion chamber, the precombustion-chamber-fuel supply valve being configured to open when a precombustion chamber fuel line pressure, which is a pressure of the precombustion-chamber-fuel supply line, is larger than a precombustion chamber pressure, which is a pressure of the precombustion chamber; a precombustion-chamber-fuel-line-pressure adjustment valve disposed on the precombustion-chamber-fuel supply line and capable of adjusting the precombustion chamber fuel line pressure; an exhaust-precombustion-chamber-pressure acquisition unit capable of obtaining an exhaust precombustion chamber pressure which is a pressure related to the precombustion chamber pressure when an exhaust valve controlling a communication state between an exhaust passage and a cylinder forming the main combustion chamber is open; and a valve-opening-degree control device configured to control an opening degree of the precombustion-chamber-fuel-line-pressure adjustment valve. The valve-opening-degree control device is configured to control the opening degree of the precombustion-chamber-fuel-line-pressure adjustment valve in accordance with the exhaust precombustion chamber pressure obtained by the exhaust-precombustion-chamber-pressure acquisition unit.

59. 发明申请

US20200291847A1 DIFFUSER AND TURBOCHARGER 审中-公开
公开(公告)号：US20200291847A1
公开(公告)日：2020-09-17
申请号：US16769379
申请日：2017-12-07
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD
发明人： Toru HOSHI , Reiko TAKASHIMA , Takao YOKOYAMA
IPC分类号： F02B37/00 , F01D25/30 , F01D17/14
摘要： A diffuser includes a connection section and a body section. The connection section extends from an outlet of turbine rotor blades. The body section is connected to an end of the connection section on a downstream side and has a larger flow passage sectional area than the connection section. The shape of the flow passage sectional surface of the connection section is formed into a circle at an outlet of the turbine rotor blades and is formed into an ellipse at an inlet of the body section. The shape of the flow passage sectional surface of the connection section is further formed to be gradually enlarged in a long-axis direction of the ellipse from the outlet of the turbine rotor blades toward the inlet of the body section.

60. 发明授权

US10760478B2 Multi-stage turbo supercharging system 有权
公开(公告)号：US10760478B2
公开(公告)日：2020-09-01
申请号：US16094445
申请日：2016-05-18
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Yusuke Yashiro , Vissuta Jiwariyavej , Yoshihiro Hayashi , Byeongil An
IPC分类号： F02B37/16 , F02M26/08 , F02B37/013 , F02B37/00 , F02B37/18 , F02B37/24 , F02D41/00 , F02M25/06 , F02B37/12
摘要： A multi-stage turbo supercharging system includes: a bypass passage which bypasses a turbocharger from among a plurality of turbochargers, in an intake passage or an exhaust passage of the engine; a bypass valve disposed in the bypass passage; an operation mode selection part; a bypass valve opening degree map selection part configured to select at least one bypass valve opening degree map in accordance with the operation mode selected by the operation mode selection part, from among a plurality of bypass valve opening degree maps which represent respective relationships between a plurality of control parameters of the engine and an opening degree of the bypass valve; a bypass valve opening degree determination part configured to determine an opening degree command value for the bypass valve on the basis of the bypass valve opening degree map and control parameter information representing the plurality of control parameters; and a bypass valve opening degree control part configured to control the opening degree of the bypass valve on the basis of the opening degree command value for the bypass valve.

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