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公开(公告)号：US11629674B2
公开(公告)日：2023-04-18
申请号：US17879223
申请日：2022-08-02
申请人： DENSO CORPORATION
摘要： A valve device increases or decreases a flow rate of EGR gas. The valve device includes a housing, a bypass valve body, an EGR valve body. The housing includes a first upstream passage into which the EGR gas cooled by an EGR cooler flows, a second upstream passage into which the EGR gas that bypasses the EGR cooler flows, a junction connected to each of a gas-flow downstream side of the first upstream passage and a gas-flow downstream side of the second upstream passage, and a downstream passage connected to the first upstream passage and the second upstream passage via the junction. The bypass valve body opens and closes the second upstream passage. The EGR valve body is provided in the downstream passage, rotates around an EGR valve axis.
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公开(公告)号：US11608800B2
公开(公告)日：2023-03-21
申请号：US17119696
申请日：2020-12-11
申请人： Caterpillar Inc.
发明人： Dean W. Walters , Allen Y. Chen , DeForest C. Gould, III , Jason L. Van Farowe , Quinton M. Burcar
摘要： A coolant collector bracket including a front side, a back side, and a top side is provided. The back side is opposite the front side and includes a plurality of coolant inlets for receiving coolant from a cylinder head. The top side includes an exhaust gas recirculation (EGR) cooler inlet and an EGR coolant outlet. The EGR coolant inlet and the EGR coolant outlet are substantially orthogonal to the plurality of coolant inlets.
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公开(公告)号：US20220127976A1
公开(公告)日：2022-04-28
申请号：US17646921
申请日：2022-01-04
申请人： IHI Corporation
发明人： Ryota SAKISAKA
摘要： A drainage structure includes: a main body including an intake flow path; a compressor impeller disposed in the intake flow path; an accommodation chamber formed in the main body at a position upstream of the compressor impeller in a flow of an intake air; a movable member disposed in the accommodation chamber; and a connecting passage connected to the accommodation chamber.
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公开(公告)号：US20220106905A1
公开(公告)日：2022-04-07
申请号：US17644368
申请日：2021-12-15
申请人： Tenneco GmbH
IPC分类号： F02B37/18 , F02M26/05 , F02M26/06 , F02M26/07 , F02M26/15 , F02M26/23 , F02M26/35 , F02M26/42 , F01N3/031 , F01N3/035 , F01N3/10 , F01N3/20 , F02B47/08
摘要： An exhaust gas conduction system for a gasoline engine comprises an exhaust gas line and an intake line which can be connected to an intake manifold, a charge air compressor arranged in the intake line, and a turbine arranged in the exhaust gas line. The exhaust gas line has at least one bypass line with a bypass throttle valve. At least one exhaust gas recirculation line with an EGR throttle valve is provided. At least one particle filter is arranged in the bypass line and an exhaust gas valve is provided in the exhaust gas line.
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公开(公告)号：US11060471B1
公开(公告)日：2021-07-13
申请号：US16740978
申请日：2020-01-13
摘要： An engine system includes: an internal combustion engine having a plurality of cylinders; a bypass valve arranged to receive exhaust output from at least a dedicated one of the cylinders and to selectively one of: direct the exhaust through an exhaust system to atmosphere; and direct the exhaust to an exhaust gas recirculation (EGR) valve; the EGR valve, where the EGR valve is configured to, when open, enable flow of the exhaust to an intake manifold of the internal combustion engine; and an intake air valve located between an air cleaner and a mass airflow (MAF) sensor and configured to, when open, enable flow of ambient air to the intake manifold.
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公开(公告)号：US10989150B2
公开(公告)日：2021-04-27
申请号：US16835534
申请日：2020-03-31
摘要： A method to control the combustion of an internal combustion engine comprising determining a combustion model providing a spark advance value depending on an objective value of a quantity representing the incidence of a low-pressure EGR circuit, of the rotation speed, of the intake efficiency and of an open-loop contribution of a combustion index; calculating a first closed-loop contribution of the spark advance depending on the combustion index; calculating a second closed-loop contribution of the spark advance depending on a quantity indicating the knocking energy; and calculating the objective value of the spark advance angle to be operated through the sum of the spark advance value provided by the combustion model and of the first closed-loop contribution or, alternatively, of the second closed-loop contribution.
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公开(公告)号：US10808651B2
公开(公告)日：2020-10-20
申请号：US16519589
申请日：2019-07-23
发明人： Heechang Oh , Yeongseop Park , Kwanhee Lee , Jonghyeok Lee , Jaegu Kang , Dong Hee Han , Seungwoo Hong
摘要： An engine system includes an engine with a combustion chamber, an intake line in which external air flows, and an exhaust line in which exhaust gas flows. A compressor is disposed in the intake line and rotated with a turbine to compress external air. A first recirculation line is branched off from the exhaust line and merged into the intake line. An EGR cooler cools exhaust gas flowing through the first recirculation line. A second recirculation line is branched off from the first recirculation line. A bypass line is branched off from the first recirculation line between an electric supercharger and the EGR cooler. A three-way valve is disposed where the bypass and first recirculation lines join. An intake valve is disposed in the intake line between where the first recirculation line and intake valve join and where the bypass line and intake valve join.
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公开(公告)号：US20190226443A1
公开(公告)日：2019-07-25
申请号：US16300439
申请日：2017-03-14
摘要： An object of the present invention is to predict change of a combustion limit due to cycle variation of temperature and an EGR ratio and perform correction every cycle to decrease an amount of combustion consumption. Therefore, in an internal combustion engine control device that controls an internal combustion engine including a cylinder and an exhaust pipe, the internal combustion engine control device includes a control unit configured to perform EGR control of controlling an exhaust gas in the exhaust pipe to return to an inner cylinder of the cylinder, obtain temperature of the gas in the internal cylinder and an EGR ratio in a state where both an intake valve and an exhaust valve are closed in an combustion cycle, and correct a combustion parameter in a same combustion cycle as the combustion cycle on the basis of the obtained gas temperature and the obtained EGR ratio.
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公开(公告)号：US10352277B2
公开(公告)日：2019-07-16
申请号：US15514734
申请日：2015-11-05
发明人： Atsushi Ito
摘要： In an intake apparatus of an internal combustion engine, an EGR gas inlet port of each of plural EGR gas distribution pipes is provided at a position at which a volume of an intake port from a surge tank to the EGR gas inlet port is equal to or greater than a volume of an EGR gas introduced to an intake pipe from each of the EGR gas distribution pipes during one cycle of the internal combustion engine and at a position towards the surge tank relative to a center of the intake port in a flow direction thereof.
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公开(公告)号：US10260461B2
公开(公告)日：2019-04-16
申请号：US15572139
申请日：2016-04-14
申请人： DENSO CORPORATION
IPC分类号： F02B47/08 , F02M26/33 , F01P7/16 , F02M26/06 , F02M26/28 , F02M26/24 , F02M26/35 , F02B29/04
摘要： A low temperature cooling device applied to an internal combustion engine includes an EGR device, a low temperature coolant circuit, a prediction unit predicting whether an EGR cooler falls into a state where a cooling performance falls short according to at least one of an operating state of an internal combustion engine and an outside air environment while a control that dehumidifies an EGR gas by cooling the EGR gas in the EGR cooler is performed, and a control unit performing at least one of a first increase control that increases a flow rate of a coolant flowing into the EGR cooler, a second increase control that increases an air rate of a radiator fan cooling a radiator, and an inhibition control that inhibits the EGR gas from flowing back when the prediction unit predicts that the EGR cooler falls into the state where the cooling performance falls short.
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