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1. 发明申请

US20210123380A1 TURBINE ROTOR BLADE, TURBOCHARGER, AND METHOD FOR PRODUCING TURBINE ROTOR BLADE 有权
公开(公告)号：US20210123380A1
公开(公告)日：2021-04-29
申请号：US16960146
申请日：2018-01-11
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Takao YOKOYAMA , Toru HOSHI , Toyotaka YOSHIDA , Keigo SAKAMOTO
IPC分类号： F02C6/12 , F02B39/00 , F04D29/28 , F01D5/04 , F01D5/14
摘要： A turbine rotor blade according to at least one embodiment of the present invention is to be connected to a rotational shaft so as to be rotatable around an axis and includes: a hub having a hub surface inclined with respect to the axis in a cross-section along the axis; at least one rotor blade disposed on the hub surface; and a connection passage disposed inside the turbine rotor blade and connecting a first opening disposed in the at least one rotor blade and a second opening disposed downstream of the first opening in the turbine rotor blade.

2. 发明申请

US20210172320A1 TURBINE ROTOR BLADE AND TURBINE 有权
公开(公告)号：US20210172320A1
公开(公告)日：2021-06-10
申请号：US17251034
申请日：2018-11-29
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Takeru CHIBA , Toru HOSHI
IPC分类号： F01D5/02 , F01D5/14
摘要： A turbine rotor blade according to at least one embodiment to be connected to a rotational shaft so as to be rotatable around an axis includes a hub having a hub surface inclined with respect to the axis in a cross-section along the axis; and a plurality of rotor blades disposed on the hub surface. In a throat portion where a blade-to-blade distance between two adjacent rotor blades is smallest, a value (Lt/r) obtained by dividing the blade-to-blade Lt at a given radial position by a distance r from the axis to the radial position is maximum at a position where a dimensionless span length is in a range of 0.2 to 0.65, assuming that the dimensionless span length is 0 at a position of a root end portion on a hub side and is 1 at a position of a tip end portion opposite to the hub side.

3. 发明申请

US20200040737A1 TURBINE BLADE, TURBOCHARGER, AND METHOD OF PRODUCING TURBINE BLADE 审中-公开
公开(公告)号：US20200040737A1
公开(公告)日：2020-02-06
申请号：US16605370
申请日：2017-10-31
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Takao YOKOYAMA , Toru HOSHI , Toyotaka YOSHIDA
IPC分类号： F01D5/14
摘要： A turbine blade configured to be coupled to a rotational shaft and rotated around an axis includes: a hub having a hub surface which is inclined with respect to the axis in a cross section along the axis; a rotor blade disposed on the hub surface; and at least one rib formed on a blade surface of the rotor blade, the at least one rib extending in a direction which intersects with a span direction of the rotor blade in a meridional plane of the rotor blade.

4. 发明申请

US20190101018A1 TURBOCHARGER 审中-公开
公开(公告)号：US20190101018A1
公开(公告)日：2019-04-04
申请号：US16082859
申请日：2016-03-30
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Toyotaka YOSHIDA , Toru HOSHI , Yosuke DAMMOTO , Yoji AKIYAMA
IPC分类号： F01D17/16 , F01D5/04 , F02C6/12 , F02B37/24
摘要： A turbocharger (10) comprising: a rotating shaft (14); a turbine wheel (12); a turbine housing (31); a scroll flowpath (34) having gas flowing therethrough that rotates and drives the turbine wheel (12); a nozzle flowpath (35) that guides gas radially inwards from the scroll flowpath (34) and supplies gas to the turbine wheel (12); and a vane (53) that adjusts the amount of gas introduced in the nozzle flowpath (35). The vane (53) comprises a guide section (60) that guides the gas flow (F) in the turbine wheel (12) radially inwards.

5. 发明公开

US20230287795A1 TURBINE WHEEL, TURBINE, AND TURBOCHARGER 审中-公开
公开(公告)号：US20230287795A1
公开(公告)日：2023-09-14
申请号：US18013435
申请日：2021-08-24
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Yoshihiro ISHIKAWA , Toru HOSHI , Nobuhito OKA
IPC分类号： F01D5/04 , F04D17/10 , F04D29/28
CPC分类号： F01D5/04 , F04D17/10 , F04D29/284
摘要： A turbine wheel according to at least one embodiment is a turbine wheel connected to a rotational shaft and configured to rotate about an axis and includes: a hub having a hub surface oblique to the axis in a cross-section along the axis; and a plurality of blades disposed on the hub surface. The turbine wheel includes a plurality of passages each of which is formed between two adjacent blades of the plurality of blades, and a relationship of Aen/Aave>1.01 is satisfied, where Aen is an area of a throat portion of a throat enlarged passage which is at least one of the plurality of passages, and Aave is an average area of throat portions of the plurality of passages.

6. 发明申请

US20230020581A1 TURBINE HOUSING AND TURBOCHARGER 有权
公开(公告)号：US20230020581A1
公开(公告)日：2023-01-19
申请号：US17781970
申请日：2020-01-07
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Toru HOSHI , Hiroshi NAKAGAWA , Shunsuke MIYOSHI , Kenji NITTA , Sosuke IRIE
IPC分类号： F01D9/02 , F01D25/24
摘要： A turbine housing has a scroll passage. The scroll passage includes: an outer peripheral surface extending along an axial direction of the turbine housing; an inner peripheral surface disposed inward of the outer peripheral surface in a radial direction of the turbine housing; a one-side surface, which is a side surface on one side in the axial direction of the turbine housing, extending along the radial direction of the turbine housing; an other-side surface, which is a side surface on another side in the axial direction of the turbine housing, disposed closer to an outlet of the turbine housing than the one-side surface and extending along the radial direction of the turbine housing; a one-side outer peripheral R portion connecting an outer peripheral end of the one-side surface and a one-side end of the outer peripheral surface; an other-side outer peripheral R portion connecting an outer peripheral end of the other-side surface and an other-side end of the outer peripheral surface; and an other-side inner peripheral R portion connecting an inner peripheral end of the other-side surface and an other-side end of the inner peripheral surface. In a cross-sectional view of the scroll passage, when a ratio of a width dimension of the scroll passage along the axial direction to an R dimension of each of the one-side outer peripheral R portion, the other-side outer peripheral R portion, and the other-side inner peripheral R portion is defined as a one-side outer peripheral R ratio, an other-side outer peripheral R ratio, and an other-side inner peripheral R ratio, respectively, the scroll passage has an R ratio increasing region where at least one of the one-side outer peripheral R ratio, the other-side outer peripheral R ratio, and the other-side inner peripheral R ratio increases from upstream to downstream in the scroll passage.

7. 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.

8. 发明申请

US20200088212A1 TURBINE FOR TURBOCHARGER, AND TURBOCHARGER 审中-公开
公开(公告)号：US20200088212A1
公开(公告)日：2020-03-19
申请号：US16615588
申请日：2017-08-10
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Toru HOSHI , Toyotaka YOSHIDA , Takao YOKOYAMA , Bipin GUPTA
IPC分类号： F04D29/42 , F02B33/40
摘要： A turbine for a turbocharger includes: a turbine impeller coupled to a compressor impeller via a rotational shaft; a turbine casing disposed so as to cover the turbine impeller, the turbine casing including a scroll flow passage and a scroll outlet portion disposed on an inner side, in a radial direction, of the scroll flow passage, for guiding exhaust gas from the scroll flow passage to the turbine impeller; and a back-surface side member disposed so as to face a back surface of the turbine impeller. The back-surface side member includes a protruding portion disposed on an impeller facing surface which faces the back surface of the turbine impeller, the protruding portion protruding toward the back surface and extending in a circumferential direction.

9. 发明申请

US20190234422A1 TURBINE HOUSING, EXHAUST TURBINE, AND TURBOCHARGER 审中-公开
公开(公告)号：US20190234422A1
公开(公告)日：2019-08-01
申请号：US16311406
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： F04D29/42 , F02B39/00
CPC分类号： F04D29/4206 , F02B39/00 , F05D2240/14
摘要： A turbine housing includes: a housing body which is configured to accommodate a turbine wheel and which includes an inlet section forming an inlet flow passage for guiding exhaust gas to the turbine wheel, and an outlet section forming an outlet flow passage for discharging the exhaust gas from the turbine wheel; and at least one sleeve disposed along an inner wall surface of at least one of the inlet section or the outlet section of the housing body. The at least one sleeve includes a plurality of sections divided along a flow direction of the exhaust gas.

10. 发明申请

US20190136694A1 IMPELLER, TURBOCHARGER, AND METHOD FOR FORMING FLOW FIELD FOR GAS IN IMPELLER AND TURBOCHARGER 审中-公开
公开(公告)号：US20190136694A1
公开(公告)日：2019-05-09
申请号：US16082855
申请日：2016-03-31
申请人： MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
发明人： Toyotaka YOSHIDA , Toru HOSHI , Yosuke DAMMOTO , Yoji AKIYAMA
IPC分类号： F01D5/04 , F01D17/16 , F02C6/12 , F02B37/24
摘要： A turbine wheel (12) is provided with: a disc (22) provided so as to be capable of rotating about a center axis (C); and a plurality of blades (23) provided to a disc surface (22f) at intervals in a circumferential direction, the blades (23) causing a gas guided in from radially outward leading edges (23f) to be expelled from trailing edges (23r) disposed on one side of each of the blades along the direction of the center axis (C). In each of the blades (23), in an area on one side along the direction of the center axis (C) including the trailing edge (23r), there is provided a concave surface (27) in which a positive-pressure surface (23p) on the rear side in a rotational direction (R) is recessed forward in the rotational direction (R), causing the gas to be dispersed entirely in the radial direction of the blade (23).

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