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公开(公告)号：US11047334B2
公开(公告)日：2021-06-29
申请号：US16681430
申请日：2019-11-12
申请人： ACHATES POWER, INC.
发明人： Robert G. Sperry , James R. Shaw
摘要： An air intake system is provided that supplies charge air to multiple cylinders in an in-line configuration in an uniflow-scavenged, two-stroke opposed-piston engine. The engine is configured such that the intake ports of the cylinders are situated in one intake chamber within the engine block. The air intake chamber includes a feature to balance the mass of air that reaches the intake port of each cylinder in the engine.
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公开(公告)号：US10954882B2
公开(公告)日：2021-03-23
申请号：US16465450
申请日：2017-11-23
发明人： Peter Kawelke
摘要： An internal combustion engine has a cylinder head having an integrated exhaust manifold having exhaust ducts connected to a secondary air system's distributor block via its supply ducts for supplying ambient air through an inlet as secondary air into the exhaust manifold. Each supply duct having a valve assembly having a closure flap pivotable about a pivot axis at a distance from its the center of mass. The closure flap closing due to the influence of gravity when there is no pressure difference between the exhaust manifold and the secondary air system and opening automatically due to a relative overpressure in the gas pressure on the side of the secondary air system in relation to the gas pressure on the side of the exhaust manifold.
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公开(公告)号：US20210062751A1
公开(公告)日：2021-03-04
申请号：US16964819
申请日：2018-01-29
发明人： Takao YOKOYAMA , Makoto OZAKI
摘要： An internal combustion engine with a turbocharger according to an embodiment includes a cylinder block internally including a plurality of cylinders, a cylinder head disposed on top of the cylinder block, and internally including a plurality of exhaust flow passages through which exhaust air discharged from each of the plurality of cylinders flows, and the turbocharger including a rotational shaft, a turbine wheel, and a compressor wheel, the turbine wheel being disposed at one end of the rotational shaft, the compressor wheel being disposed at the other end of the rotational shaft. At least the turbine wheel of the turbocharger is arranged inside the cylinder head. The cylinder head internally includes a plurality of scroll passages for introducing the exhaust air flowing through the plurality of exhaust flow passages to the turbine wheel, the plurality of scroll passages including a first scroll passage for introducing the exhaust air from a first range in a circumferential direction of the turbine wheel to the turbine wheel, and a second scroll passage for introducing the exhaust air from a second range, which is different from the first range in the circumferential direction of the turbine wheel, to the turbine wheel.
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公开(公告)号：US20210062686A1
公开(公告)日：2021-03-04
申请号：US17008317
申请日：2020-08-31
申请人： DEERE & COMPANY
发明人： Neil S. Erickson , Alok N. Pandey , Eric J. Rego
摘要： A hydraulic lash adjuster for use in diesel engines including a cylinder head having a first valve, a second valve, and a valve bridge extending between and in contact with both the first valve and the second valve. Where the diesel engine includes a first rocker arm, and where at least one of the first valve and the second valve undergo an oil can valve deflection rate. The hydraulic lash is configured to selectively transmit force between the first rocker arm and the valve bridge, and where the hydraulic lash adjuster is normally in the open configuration, and where the hydraulic lash adjuster changes from the open configuration to a closed configuration at a critical velocity that is greater than the oil can valve deflection rate.
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公开(公告)号：US10927750B2
公开(公告)日：2021-02-23
申请号：US15948089
申请日：2018-04-09
发明人： Matthew T. Riley
IPC分类号： F02B23/04 , F02B75/04 , F02F3/24 , F02F1/22 , F02F1/42 , F02P19/02 , F02D41/30 , F02B19/14 , F02B23/06 , F02D41/00
摘要： Apparatuses, systems and method for utilizing multi-zoned combustion chambers (and/or multiple combustion chambers) for achieving compression ignition (and/or spark-assisted or fuel-assisted compression ignition) in an internal combustion engine are provided. In addition, improved apparatuses, systems and methods for achieving and/or controlling compression ignition (and/or spark-assisted or fuel-assisted compression ignition) in a “Siamese cylinder” internal combustion engine are provided.
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公开(公告)号：US10907573B2
公开(公告)日：2021-02-02
申请号：US16342792
申请日：2017-10-02
发明人： Kenichiro Ikeya , Satoshi Yamamura
摘要： Provided is a thermally insulated insert member and an engine having the thermally insulated insert member. Thermally insulated insert member is disposed in an intake port of a cylinder head of the engine. The thermally insulated insert member includes a guide member that guides a flow of intake air flowing in t he intake port; and a thermally insulative support member with a shape that can be fitted within the intake port. The guide member is formed of a metal and is supported in the intake port via the thermally insulative support member.
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公开(公告)号：US10907572B2
公开(公告)日：2021-02-02
申请号：US16323233
申请日：2017-08-24
发明人： Enzo Pierro
摘要： An internal combustion engine comprising at least a crank case, which houses a cylinder, and a cylinder head, which is adapted to be coupled to the crank case, and a liquid cooling circuit, wherein the liquid cooling circuit comprises at least one inlet aperture and at least one outlet aperture, a lower cooling chamber housed in said cylinder head in a position adjacent to a flame deck of said cylinder head; an upper cooling chamber housed in said cylinder head above said lower chamber, so that said lower chamber is sandwiched between said upper chamber and said flame deck; wherein said inlet aperture is provided in said upper or lower chamber and said outlet aperture is provided in said lower or upper chamber, on a same side of the internal combustion engine, so that the cooling liquid runs in a substantially U-shaped path moving between said upper chamber and said lower chamber, transversely relative to a crankshaft of said engine.
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公开(公告)号：US20210010442A1
公开(公告)日：2021-01-14
申请号：US16922004
申请日：2020-07-07
申请人： Cummins Inc.
发明人： Randall L. Zehr , Robert G. Sperry
IPC分类号： F02F1/42
摘要： A cylinder having at least one intake port and at least one exhaust port, wherein the at least one intake port includes an upper surface and a lower surface, the upper surface of the intake port having an entrance portion and an outlet portion, the upper surface arced from the entrance portion to the outlet portion.
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公开(公告)号：US20200340423A1
公开(公告)日：2020-10-29
申请号：US16762559
申请日：2018-11-20
发明人： Tomoaki Kitagawa , Masahiro Akei
摘要： A cylinder head includes: a plurality of exhaust ports configured to lead out exhaust gas from combustion chambers; a plurality of intake ports configured to introduce fresh air into the combustion chambers; an intake air aggregate part configured to aggregate the plurality of intake ports; and a second EGR pipe in which EGR gas flows, wherein exhaust outlets of the plurality of exhaust ports and an EGR gas inlet of the second EGR pipe are arranged side-by-side on a flat left side surface, and a fresh air inlet of the intake air aggregate part and an EGR gas outlet of the second EGR pipe are arranged side-by-side on a flat right side surface.
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公开(公告)号：US10815872B2
公开(公告)日：2020-10-27
申请号：US16478881
申请日：2017-03-03
发明人： Yasushi Nakahara , Yohei Suzuki , Tsuyoshi Yamamoto , Michiharu Kawano , Yuya Honda , Kento Onishi
摘要： In an engine (1), an ignition plug (22) is arranged between a first intake port (6) and a second intake port (7). In a case where a downstream end portion (71) of the second intake port (7) is divided into a first intake port (6) side and an opposite first intake port (6) side, an inner wall surface (71a) of an opposite first intake port (6) side portion extends in a direction toward the first intake port (6) as extending from an upstream side to a downstream side of the second intake port (7).
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