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公开(公告)号：US11635033B2
公开(公告)日：2023-04-25
申请号：US17513076
申请日：2021-10-28
发明人： Yu Matsui , Masato Kishiura
摘要： An engine includes an exhaust manifold, an intake manifold, and an EGR device configured to supply EGR gas from the exhaust manifold to the intake manifold. An EGR cooler is provided at a side of the exhaust manifold, and a longitudinal direction of the EGR cooler is in an up-down direction of the engine in a used state.
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公开(公告)号：US20220307452A1
公开(公告)日：2022-09-29
申请号：US17684315
申请日：2022-03-01
发明人： Yusuke Oda , Naoki Mine , Tomomi Watanabe , Korin Hata , Junsou Sasaki
摘要： An engine system is provided, which includes an engine, a swirl control valve, and a controller. The engine includes a cylinder, a piston, and a fuel injection valve provided incliningly with respect to an axial direction of the piston and configured to directly inject fuel into the cylinder. The swirl control valve is provided inside an intake passage and generates a swirl flow inside the cylinder at least when the valve closes. When an engine load is below a given threshold, the controller controls the swirl control valve to close, and controls the fuel injection valve to inject fuel during an intake stroke. While the engine load is below the threshold, at a fixed engine speed, the controller controls to advance a fuel injection timing when the engine load is at a first load, compared with at a second load higher than the first load.
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公开(公告)号：US20220163001A1
公开(公告)日：2022-05-26
申请号：US17598352
申请日：2020-02-10
发明人： Masahiro Itani , Hideo Shiomi , Keiji Kunisawa
摘要： An engine control device controls an engine provided with an EGR device. The engine control device is provided with an abnormality determining unit, a restricted operation unit, and a restriction released operation unit. The abnormality determining unit determines whether an abnormality has arisen in the EGR device. The restricted operation unit performs restricted operation in which some functions of the engine are restricted, if the abnormality determining unit has determined that an abnormality has arisen in the EGR device. If a manipulation to release the restricted operation has been performed, the restriction released operation unit switches from restricted operation to restriction released operation in which the restrictions on some of the functions of the engine are released, and performs said restriction released operation.
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公开(公告)号：US11131256B2
公开(公告)日：2021-09-28
申请号：US16178898
申请日：2018-11-02
IPC分类号： B01D47/00 , F02D21/08 , F02D21/04 , F02B47/10 , B01D19/00 , B01D45/12 , F02C7/224 , B01D3/38 , B04B5/12 , F01M13/04 , F02C3/20 , F02C3/24
摘要： A fuel oxygen conversion unit includes a contactor defining a liquid fuel inlet, a stripping gas inlet and a fuel/gas mixture outlet. The fuel oxygen conversion unit also includes a fuel/gas separator defining a fuel/gas mixture inlet in flow communication with the fuel/gas mixture outlet of the contactor, an axial direction, and a radial direction. The fuel/gas separator includes a separator assembly including a core including a gas-permeable section extending along the axial direction and defining a maximum diameter, the maximum diameter of the gas-permeable section being substantially constant along the axial direction; and a stationary casing, the fuel/gas separator defining a fuel/gas chamber in fluid communication with the fuel/gas mixture inlet at a location inward of the stationary casing and outward of the gas-permeable section of the separator assembly along the radial direction.
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公开(公告)号：US10975779B2
公开(公告)日：2021-04-13
申请号：US16374841
申请日：2019-04-04
发明人： Mamoru Yoshioka , Masanao Kurita , Masateru Nagao
摘要： An engine system includes a throttle device, an EGR valve, and an ECU. The ECU diagnoses foreign-matter lodging abnormality of the EGR valve and the foreign-matter diameter based on intake pressure. When the existence of the abnormality and the foreign-matter diameter are determined, the ECU calculates a difference between a foreign-matter diameter and a predetermined learning determination value as a foreign-matter diameter difference. If this difference is larger than an abnormality determination value, the foreign-matter diameter is judged to be excessive and the throttle device is controlled to avoid engine stall. If the foreign-matter diameter difference is equal to or larger than a normality determination value and also equal to or less than the abnormality determination value, engine deceleration is continued. If the foreign-matter diameter difference is less than the normality determination value, the foreign-matter diameter is judged to be minute and the learning determination value is updated.
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公开(公告)号：US10801423B2
公开(公告)日：2020-10-13
申请号：US16280257
申请日：2019-02-20
IPC分类号： F02D23/00 , F02B33/40 , F02B37/12 , F02D21/08 , F02B39/12 , F02D41/00 , F02B33/38 , F02D41/06 , F02B39/16 , F02B37/16
摘要： A supercharging device for an engine is provided, which includes a supercharger provided to an intake passage of the engine, an actuator configured to drive the supercharger, and a controller including a processor configured to control the actuator to drive the supercharger when an operating state of the engine is in a given supercharging range, and to stop the supercharger when the operating state is in a non-supercharging range. The controller causes the actuator to forcibly drive the supercharger in the non-supercharging range when a temperature of the supercharger is lower than a preset temperature, and prohibits the forcible drive of the supercharger when a rotation speed of the supercharger during the forcible drive of the supercharger is lower than a preset rotation speed.
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公开(公告)号：US10648443B1
公开(公告)日：2020-05-12
申请号：US16087542
申请日：2017-11-10
IPC分类号： F02D41/30 , F02B11/00 , F02P5/14 , F02D41/40 , F02B23/02 , F02P5/04 , F02P5/145 , F02D21/08 , F02D37/02 , F02D35/02 , F02D41/00
摘要： A control apparatus for a compression autoignition engine controls compression autoignition by ignition. The control apparatus includes an injector, a spark plug, and a controller. The controller controls the injector so that fuel is injected by a plurality of divided injections, and thereafter, outputs a control signal to the spark plug at predetermined ignition timing so that, by ignition, unburned air-fuel mixture combusts by autoignition. Control is performed so that, when load on the engine is high, an amount of fuel injected at later timing among the plurality of injections becomes larger than when the load is low.
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公开(公告)号：US10544719B2
公开(公告)日：2020-01-28
申请号：US15886472
申请日：2018-02-01
摘要： An internal combustion engine includes: a cylinder having a combustion chamber formed at an upper side thereof and accommodating a piston to be reciprocally movable; a crankcase provided below the cylinder and accommodates a crankshaft; and a blow-by gas passageway recirculating blow-by gas, which leaks into the crankcase from the combustion chamber, to the combustion chamber through an intake system, in which an inner surface portion of the crankcase is provided with a blow-by gas intake part, and the blow-by gas intake part includes a protruding portion protruding in a direction in which the crankshaft extends, and the intake port opened in the protruding direction is formed at a tip end portion of the protruding portion.
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公开(公告)号：US10450978B2
公开(公告)日：2019-10-22
申请号：US14933738
申请日：2015-11-05
发明人： Chang Hyun Ha
摘要： A method for controlling a back pressure valve may include: an operation of sensing, by a controller, an engine speed and a fuel injection rate; an operation of comparing the engine speed with a preset speed and comparing the fuel injection rate with a preset injection rate after the operation of sensing; and a first control operation of, when a result of the operation of comparing indicates that the engine speed is less than the preset speed and that the fuel injection rate is less than the preset injection rate, controlling a control constant of the back pressure valve to be set to a compensation value that is less than a reference value.
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公开(公告)号：US10450944B2
公开(公告)日：2019-10-22
申请号：US15512736
申请日：2015-10-07
IPC分类号： F02B31/02 , F02D41/34 , F02D21/08 , F02D41/02 , F02D41/06 , F02D41/10 , F02P5/15 , F02D41/12 , F02D41/30 , H03K7/08
摘要： The present invention relates to a control apparatus and method for an internal combustion engine including two fuel injection valves in the intake port of each cylinder. In the present invention, fuel injection from a first fuel injection valve is activated while fuel injection from a second fuel injection valve is temporarily stopped at the resumption of fuel injection from the deceleration fuel cut-off state in response to a decrease in the engine rotation speed. The amount of minimum fuel injection to each cylinder that ensures the accuracy of fuel measurement can be reduced, and fuel is injected from the first fuel injection valve in an amount equal to or greater than the amount of minimum fuel injection. Thus, fuel injection can be resumed at a lower engine speed than when fuel injection is resumed from the two fuel injection valves.
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