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公开(公告)号：US20140338328A1
公开(公告)日：2014-11-20
申请号：US13896488
申请日：2013-05-17
Applicant: Caterpillar Inc.
Inventor： Christopher Lusardi , Richard W. Kruiswyk , Kerry A. Delvecchio , Matthew T. Wolk , Rohan Swar , Carl-Anders Hergart
Abstract: A turbine includes a turbine housing having two gas passages of substantially the same flow area. A nozzle ring is disposed in the housing and around the turbine wheel. The nozzle ring includes first and second outer rings, and an inner ring disposed between the first and second outer rings. First and second pluralities of vanes are disposed between the rings. The second outer ring has a thicker cross section than the first outer ring such that a larger flow area is created between the first outer ring and the inner ring than a flow area created between the second outer ring and the inner ring.
Abstract translation: 涡轮机包括具有基本上相同流动面积的两个气体通道的涡轮机壳体。 喷嘴环设置在壳体中并且围绕涡轮机叶轮。 喷嘴环包括第一和第二外圈以及设置在第一和第二外圈之间的内圈。 第一和第二多个叶片设置在环之间。 第二外圈具有比第一外圈更厚的横截面，使得在第一外圈和内圈之间产生比在第二外圈和内圈之间形成的流动区域更大的流动面积。
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公开(公告)号：US09157396B2
公开(公告)日：2015-10-13
申请号：US13896488
申请日：2013-05-17
Applicant: Caterpillar Inc.
Inventor： Christopher Lusardi , Richard W. Kruiswyk , Kerry A. Delvecchio , Matthew T. Wolk , Rohan Swar , Carl-Anders Hergart
Abstract: A turbine includes a turbine housing having two gas passages of substantially the same flow area. A nozzle ring is disposed in the housing and around the turbine wheel. The nozzle ring includes first and second outer rings, and an inner ring disposed between the first and second outer rings. First and second pluralities of vanes are disposed between the rings. The second outer ring has a thicker cross section than the first outer ring such that a larger flow area is created between the first outer ring and the inner ring than a flow area created between the second outer ring and the inner ring.
Abstract translation: 涡轮机包括具有基本上相同流动面积的两个气体通道的涡轮机壳体。 喷嘴环设置在壳体中并且围绕涡轮机叶轮。 喷嘴环包括第一和第二外圈以及设置在第一和第二外圈之间的内圈。 第一和第二多个叶片设置在环之间。 第二外圈具有比第一外圈更厚的横截面，使得在第一外圈和内圈之间产生比在第二外圈和内圈之间形成的流动区域更大的流动面积。
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Patent Agency Ranking
公开(公告)号：US11193435B1
公开(公告)日：2021-12-07
申请号：US16874931
申请日：2020-05-15
Applicant: Caterpillar Inc.
Inventor： Christopher Lusardi
Abstract: A control system for an engine including a turbocharger disposed downstream of a plurality of cylinders. The control system includes an engine sensor configured to generate a signal indicative of an operational characteristic of the engine. The control system includes a first valve configured to control exhaust flow through a first set of cylinders from the plurality of cylinders. The control system includes a second valve configured to control exhaust flow through a second set of cylinders from the plurality of cylinders. The control system includes a controller communicably coupled to the engine sensor, the first valve, and the second valve. The controller is configured to receive the signal generated by the engine sensor. The controller is configured to actuate the first valve and the second valve based on the received signal. The first valve and the second valve are actuated to adjust exhaust flow received by the turbocharger.
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公开(公告)号：US11022028B2
公开(公告)日：2021-06-01
申请号：US16405600
申请日：2019-05-07
Applicant: Caterpillar Inc.
Inventor： Christopher Lusardi
IPC: F02B37/00 , F02M26/08 , F02B37/24 , F02B37/013 , F04D29/22 , F01D5/14 , H01M8/04111 , H01M8/124
Abstract: An engine system includes an internal combustion engine having an intake passage, a first set of combustion chambers, a second set of combustion chambers, a first exhaust passage fluidly connected to the first set of combustion chambers, and a second exhaust passage fluidly connected to the second set of combustion chambers. The engine system includes a first turbocharger including a first compressor and a first turbine. The engine system also includes a second turbocharger including a second compressor and a second turbine, the second compressor connected in series with the first compressor, and the second turbine being in fluid communication with the second exhaust passage. The first and second turbines are connected in parallel such that the first turbine only receives exhaust flow from the first set of combustion chambers, and the second turbine only receives exhaust flow from the second set of combustion chambers.
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公开(公告)号：US11536191B2
公开(公告)日：2022-12-27
申请号：US17333769
申请日：2021-05-28
Applicant: Caterpillar Inc.
Inventor： Christopher Lusardi
IPC: F02B37/00 , F02M26/08 , H01M8/04111 , F02B37/24 , F02B37/013 , F04D29/22 , F01D5/14 , H01M8/12
Abstract: An engine system includes an internal combustion engine, a fuel cell system, a first turbocharger and a second turbocharger. The internal combustion engine has an intake passage, and a first exhaust passage fluidly connected to the first set of combustion chambers. The first turbocharger has a first compressor and a first turbine. The second turbocharger has a second compressor and a second turbine, the second compressor connected in series with the first compressor, and the second turbine being in fluid communication with the second exhaust passage. The first and second turbines are connected in parallel such that the first turbine only receives exhaust flow from the fuel cell system, and the second turbine only receives exhaust flow from the internal combustion engine.
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公开(公告)号：US20210355885A1
公开(公告)日：2021-11-18
申请号：US16874931
申请日：2020-05-15
Applicant: Caterpillar Inc.
Inventor： Christopher Lusardi
Abstract: A control system for an engine including a turbocharger disposed downstream of a plurality of cylinders. The control system includes an engine sensor configured to generate a signal indicative of an operational characteristic of the engine. The control system includes a first valve configured to control exhaust flow through a first set of cylinders from the plurality of cylinders. The control system includes a second valve configured to control exhaust flow through a second set of cylinders from the plurality of cylinders. The control system includes a controller communicably coupled to the engine sensor, the first valve, and the second valve. The controller is configured to receive the signal generated by the engine sensor. The controller is configured to actuate the first valve and the second valve based on the received signal. The first valve and the second valve are actuated to adjust exhaust flow received by the turbocharger.
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公开(公告)号：US20210285364A1
公开(公告)日：2021-09-16
申请号：US17333769
申请日：2021-05-28
Applicant: Caterpillar Inc.
Inventor： Christopher Lusardi
IPC: F02B37/00 , F02M26/08 , H01M8/04111 , F02B37/24 , F02B37/013 , F04D29/22 , F01D5/14
Abstract: An engine system includes an internal combustion engine having an intake passage, a first set of combustion chambers, a second set of combustion chambers, a first exhaust passage fluidly connected to the first set of combustion chambers, and a second exhaust passage fluidly connected to the second set of combustion chambers. The engine system includes a first turbocharger including a first compressor and a first turbine. The engine system also includes a second turbocharger including a second compressor and a second turbine, the second compressor connected in series with the first compressor, and the second turbine being in fluid communication with the second exhaust passage. The first and second turbines are connected in parallel such that the first turbine only receives exhaust flow from the first set of combustion chambers, and the second turbine only receives exhaust flow from the second set of combustion chambers.
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