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公开(公告)号：US20240353009A1
公开(公告)日：2024-10-24
申请号：US18687730
申请日：2022-09-13
发明人： Rick HONIJK
IPC分类号： F16K1/20
CPC分类号： F16K1/2042
摘要： In the technical field of wastegate valves comprising a functional assembly of a body member (20) and an actuable member (30), measures are proposed to limit axial wear of the body member (20) and the actuable member (30) on each other as a result of engine vibration and pulsation. One of the measures involves a design of the wastegate valve in which at least one of surfaces (24, 33) of the body member (20) and the actuable member (30) facing each other in an axial direction (A) of the wastegate valve is provided with at least one elevated portion (26, 35) delimited by at least one recessed portion (27, 36) in at least a tangential direction (T) about the axial direction (A). In this way, one or more spaces for receiving tiny wear particles from the interface between the body member (20) and the actuable member (30) are obtained.
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公开(公告)号：US12055299B2
公开(公告)日：2024-08-06
申请号：US17796491
申请日：2020-02-19
发明人： Shinji Fujita , Hikaru Kurosaki , Yuta Ishii
IPC分类号： F23R3/60
CPC分类号： F23R3/60 , F23R2900/03042
摘要： A combustor includes: a combustion cylinder; and a combustion-chamber forming member disposed so as to be at least partially inserted into the combustion cylinder and forming a combustion chamber with the combustion cylinder. A radial-direction gap for introducing film air is formed between the combustion cylinder and the combustion-chamber forming member. A gas turbine includes a combustor; a compressor for generating compressed air; and a turbine configured to be rotary driven by combustion gas from the combustor.
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公开(公告)号：US12055091B2
公开(公告)日：2024-08-06
申请号：US18016618
申请日：2020-12-28
发明人： Shunsuke Miyoshi , Kenji Nitta , Hiroshi Nakagawa , Sosuke Irie
CPC分类号： F02B37/183 , F04D17/10 , F04D29/4206 , F01D17/146 , F01D25/12 , F01D25/24 , F02B37/18 , F05D2220/40
摘要： A turbine housing that includes: a body part including a scroll passage wall surface, an exhaust gas discharge path wall surface, and a wastegate passage wall surface provided inside the body part, the scroll passage wall surface forming a scroll passage having a scroll shape, the wastegate passage wall surface forming a wastegate passage connecting the scroll passage and the exhaust gas discharge path to each other while bypassing the turbine wheel; and an entrance flange part provided at an upstream end of the scroll passage in the body part, the entrance flange part including an exhaust gas inlet leading to the scroll passage. The wastegate passage has an entrance-side opening edge formed at the scroll passage wall surface and provided at a position where the entrance-side opening edge is visually recognizable at least partially from outside the turbine housing through the exhaust gas inlet.
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公开(公告)号：US20240247629A1
公开(公告)日：2024-07-25
申请号：US18562697
申请日：2022-05-30
发明人： Hisao OGAWA
IPC分类号： F02M59/44
CPC分类号： F02M59/44
摘要： Provided is a fuel pump including: a pump head (23); a plunger barrel (32) in which a support hole (38) is provided, and one end section of which in the axial direction of the support hole (38) is screw-fastened into the pump head (23); a plunger (41) that is supported in the support hole (38) so as to be freely movable in the axial direction; a pressurization chamber (56) that is defined by one end of the support hole (38) and one end of the plunger (41); a fuel discharge passage (73) one end of which communicates with the pressurization chamber (56); and a fuel suction passage (70) one end of which communicates with the pressurization chamber (56).
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公开(公告)号：US20240110532A1
公开(公告)日：2024-04-04
申请号：US18276421
申请日：2021-12-02
发明人： Naoki HASHIMOTO , Ko TAKAYANAGI , Masataka SHIRAISHI , Yuta FURUKAWA , Yosuke KITAMURA , Yuki KOYAMA
CPC分类号： F02D41/1495 , F02D41/0007 , F02D41/1446 , F02D41/0027 , F02D2200/0406 , F02D2200/0411
摘要： Provided is an engine control device for controlling an opening degree of a valve adjusting a flow rate of an air-fuel mixture of an engine, wherein the opening degree is corrected based on an exhaust temperature deviation which is a deviation between a reference value and a current value of an exhaust temperature when controlling the opening degree.
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公开(公告)号：US20240060421A1
公开(公告)日：2024-02-22
申请号：US18270959
申请日：2021-01-08
IPC分类号： F01D9/02
CPC分类号： F01D9/026 , F05D2220/40 , F05D2260/96 , F05D2240/14
摘要： The invention relates to a turbine housing for use in a turbocharger, comprising a wheel housing space, an inlet, at least one volute, and a tongue that projects from a separation wall. The tongue is configured to guide an exhaust gas flow to a section of the wheel housing space where an inducer area of a turbine wheel to be accommodated by the turbine housing is to be located. At least one of the tongue and the separation wall is configured to enable a portion of the exhaust gas flow to pass therethrough as a leakage flow from an upstream side of the at least one of the tongue and the separation wall to a downstream side of the at least one of the tongue and the separation wall.
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公开(公告)号：US11906003B2
公开(公告)日：2024-02-20
申请号：US17606980
申请日：2020-05-29
发明人： Hisao Ogawa , Satoshi Kinoshita
CPC分类号： F16D3/79 , F16D1/0864 , F16D1/092
摘要： A coupling device configured to transmit a rotational force between a first shaft and a second shaft, the device including a first coupling member mounted on the first shaft, a second coupling member mounted on the second shaft, and an intermediate member disposed between the first coupling member and the second coupling member, and configured to allow misalignment between the first shaft and the second shaft. The second coupling member includes a base member configured to be fixed to the intermediate member by a first fastening device, and a shaft mounting member configured to relatively non-rotatably be mounted on the second shaft, the shaft mounting member having a long hole extending along a circumferential direction of the above-described axis and being configured to detachably be fixed to the base member by a second fastening device inserted through the long hole.
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公开(公告)号：US11828222B2
公开(公告)日：2023-11-28
申请号：US17606563
申请日：2019-05-31
发明人： Jain Sambhav , Yosuke Danmoto , Youji Akiyama
CPC分类号： F02B37/24 , F01D17/165 , F05D2220/40 , F05D2240/128 , F05D2240/58
摘要： A sealing structure of a turbocharger includes a turbine housing including a scroll channel, a nozzle mount, a nozzle plate defining, with the nozzle mount, an exhaust gas channel for introducing an exhaust gas from the scroll channel to a turbine wheel, the nozzle plate including an annular plate portion that has a channel wall surface defining the exhaust gas channel and a tubular portion that extends from an inner peripheral end portion on a back surface of the annular plate portion toward a first inner wall surface of the turbine housing, and a sealing device for sealing a section between the first inner wall surface and an end surface of the tubular portion. The sealing device includes a first plate member that has one surface contacting the end surface of the tubular portion, and a sealing member for sealing a section between the first inner wall surface and another surface of the first plate member, the sealing member being configured to bias the first plate member toward the end surface of the tubular portion.
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公开(公告)号：US11795969B2
公开(公告)日：2023-10-24
申请号：US17606250
申请日：2019-05-30
发明人： Kenichiro Iwakiri
CPC分类号： F04D29/441 , F01D9/026 , F04D29/284 , F05D2220/40 , F05D2240/14 , F05D2250/52 , F05D2250/70
摘要： In a centrifugal compressor, when the position of the tongue of the scroll section in the circumferential direction of the impeller is defined as 60° and the downstream direction in the rotation direction of the impeller is defined as the positive direction of the position in the circumferential direction, a diffuser section outer diameter distribution indicating a relationship between the position in the circumferential direction and outer diameter R of the diffuser section includes an outer diameter increasing portion where the outer diameter R increases going toward the positive direction, and in the diffuser section outer diameter distribution, the position of a start point of the outer diameter increasing portion is 150° or less, and the position of an end point of the outer diameter increasing portion is 270° or more.
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公开(公告)号：US20230332607A1
公开(公告)日：2023-10-19
申请号：US18001666
申请日：2020-07-15
发明人： Naomichi SHIBATA , Byeongil AN , Takaaki YOSHIZAWA
IPC分类号： F04D25/06 , F04D29/42 , F04D29/58 , F04D29/056 , F04D17/12
CPC分类号： F04D25/06 , F04D29/4206 , F04D29/5826 , F04D29/056 , F04D17/12
摘要： A multi-stage electric centrifugal compressor configured to drive impellers disposed at both ends of a rotational shaft by an electric motor includes: the rotational shaft; a low-pressure-stage impeller disposed at one end of the rotational shaft; a high-pressure-stage impeller disposed at the other end of the rotational shaft; a high-pressure-stage housing accommodating the high-pressure-stage impeller; and a connecting pipe for supplying a compressed gas compressed by the low-pressure-stage impeller to the high-pressure-stage housing. The high-pressure-stage housing has a high-pressure-stage inlet opening that opens in a direction intersecting an axis of the rotational shaft. The connecting pipe includes a high-pressure-stage-side connection portion connected to the high-pressure-stage inlet opening.
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