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公开(公告)号：US12060844B1
公开(公告)日：2024-08-13
申请号：US18396674
申请日：2023-12-26
发明人： Lubomir Baramov , Ondrej Santin
CPC分类号： F02D41/0007 , F02B29/04 , F02B37/183 , F02B37/22 , F02D41/005 , F02D2200/0406 , F02D2200/0414
摘要： Systems and controllers providing air-path controls in combustion engines. Some examples may be directed to use in gasoline engines including a turbocharger, whether mechanical-only or including electrical assist) and a low-pressure exhaust gas recirculation flow path. Control signals for a wastegate or variable nozzle turbine are generated from a turbocharger kinetic energy controller.
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公开(公告)号：US11988177B2
公开(公告)日：2024-05-21
申请号：US18138344
申请日：2023-04-24
申请人： SUBARU CORPORATION
发明人： Tomoya Ozawa
摘要： An exhaust system includes a supercharger, a first communication path, a negative pressure generator, and an exhaust sensor. The supercharger includes a turbine and compressor. The turbine is provided in an exhaust pipe of an engine. The compressor is provided in an intake pipe and coupled to the turbine by a shaft. The supercharger supercharges intake air using energy of exhaust air. The first communication path communicates with the exhaust pipe on a downstream side of the turbine and communicates with the intake pipe on an upstream side of the compressor. The exhaust pipe and the intake pipe communicate through the first communication path. The negative pressure generator is interposed in the first communication path and generates a negative pressure. The exhaust sensor is provided in the first communication path between a location where the first communication path is coupled to the exhaust pipe and the negative pressure generator.
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公开(公告)号：US11959426B2
公开(公告)日：2024-04-16
申请号：US17823994
申请日：2022-09-01
IPC分类号： F02D19/06 , F02B37/16 , F02B37/18 , F02B37/22 , F02B37/24 , F02D41/00 , F02D41/14 , F02D41/30 , F02B29/04
CPC分类号： F02D19/0644 , F02B37/16 , F02B37/18 , F02B37/22 , F02B37/24 , F02D19/0613 , F02D19/066 , F02D41/0007 , F02D41/0025 , F02D41/0027 , F02D41/1475 , F02D41/3017 , F02B29/0406 , Y02T10/12 , Y02T10/30
摘要： A conventional gasoline engine is retrofitted and calibrated to operate as a bi-fuel engine using Hydrogen as the second fuel. When operated with Hydrogen, which typically leads to a reduction of engine output power, the engine is preferably operated in a charged mode and in a lean mode with the engine throttle kept in a wide-open position during charged and lean mode operation resulting in a more efficient engine with a reduction of engine output power loss.
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公开(公告)号：US20240060446A1
公开(公告)日：2024-02-22
申请号：US18123036
申请日：2023-03-17
申请人： BorgWarner Inc.
发明人： Ivan Injac
CPC分类号： F02B37/183 , F02B37/22 , F01D17/105 , F05D2220/40 , F05D2260/606
摘要： A valve (100) controls a volute connecting opening (240) and a bypass opening (250) of a dual-volute turbine (200). The valve (100) has valve closing body (110), a lever arm (120) and a spindle (130). The valve closing body (110) has a main body (111) and a collar (112). The valve (100) is of a monoblock design with the valve closing body (110), the lever arm (120) and the spindle (130) being made of a single part.
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公开(公告)号：US11821357B2
公开(公告)日：2023-11-21
申请号：US17564713
申请日：2021-12-29
CPC分类号： F02B37/24 , F01D17/165 , F02B37/225 , F05D2220/40 , F05D2240/55
摘要： A turbine housing assembly can include a turbine housing that defines a rotational axis for a turbine wheel; and a cartridge receivable by the turbine housing, where the cartridge includes a nozzle wall component with an upper nozzle surface and a plate component with a lower nozzle surface, where the upper nozzle surface and the lower nozzle surface define a nozzle space, and vanes positioned in the nozzle space, where the vanes are pivotable between a closed vanes position of 0 percent open and a fully open vanes position of 100 percent open, and where, for a vanes position of at least 50 percent open and less than 75 percent open, an axial dimension of the nozzle space increases with respect to decreasing radius as measured from the rotational axis.
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公开(公告)号：US20230313753A1
公开(公告)日：2023-10-05
申请号：US18104168
申请日：2023-01-31
发明人： Douglas Keith , Josef Thalhauser , Nikolaus Spyra
IPC分类号： F02D41/14 , F02B37/16 , F01N3/28 , F02B37/18 , F02B37/22 , F02D13/02 , F02D41/00 , F02D41/40 , F02P5/15
CPC分类号： F02D41/1448 , F01N3/2892 , F02B37/16 , F02B37/162 , F02B37/18 , F02B37/183 , F02B37/22 , F02D13/0234 , F02D41/0007 , F02D41/146 , F02D41/401 , F02P5/1502 , F02D2041/389
摘要： An internal combustion engine with an open-loop or closed-loop control device (2), wherein at least one combustion chamber (3) of the internal combustion engine (1) is designed to burn a fuel-air mixture using at least one combustion parameters that can be influenced by the open-loop or closed-loop control device (2), wherein the open-loop or closed-loop control device (2) has an emission control loop that is configured to actuate the at least one actuator that influences the at least one combustion parameter as a substitute parameter for NOx emissions by means of a functional relationship in such way that at last one combustion parameter can be set for each target or actual power rating of the internal combustion engine (1), wherein the functional relationship takes account of an influence of a change of the exhaust backpressure (p3’) affecting at least one combustion chamber (3).
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公开(公告)号：US11739683B2
公开(公告)日：2023-08-29
申请号：US17851132
申请日：2022-06-28
申请人： DAF Trucks N.V.
CPC分类号： F02B37/22 , F02B37/24 , F02D9/04 , F02D9/06 , F02D13/04 , F02D41/0047 , F02M26/05 , F02D2200/024 , F02D2200/101 , F02D2200/703
摘要： A method is disclosed for controlling a compression release brake mechanism in a combustion engine. The method comprises: determining a desired exhaust manifold gas pressure level; continuously monitoring a set of control parameters, including at least two of cylinder pressure, exhaust manifold pressure, turbine speed and turbine expansion ratio; controlling a brake pressure valve and a variable turbine geometry by said control parameters, to drive one of the control parameters to a set first maximum level; and, while maintaining the first of the set of control parameters at the set first maximum level, controlling an exhaust gas recirculation valve by said control parameters in a closed loop to allow exhaust gas to recirculate towards an air inlet system while driving a second of the set of control parameters to a set second maximum level.
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公开(公告)号：US20230203983A1
公开(公告)日：2023-06-29
申请号：US17564713
申请日：2021-12-29
CPC分类号： F02B37/24 , F01D17/165 , F02B37/225 , F05D2220/40 , F05D2240/55
摘要： A turbine housing assembly can include a turbine housing that defines a rotational axis for a turbine wheel; and a cartridge receivable by the turbine housing, where the cartridge includes a nozzle wall component with an upper nozzle surface and a plate component with a lower nozzle surface, where the upper nozzle surface and the lower nozzle surface define a nozzle space, and vanes positioned in the nozzle space, where the vanes are pivotable between a closed vanes position of 0 percent open and a fully open vanes position of 100 percent open, and where, for a vanes position of at least 50 percent open and less than 75 percent open, an axial dimension of the nozzle space increases with respect to decreasing radius as measured from the rotational axis.
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公开(公告)号：US11668230B2
公开(公告)日：2023-06-06
申请号：US17248516
申请日：2021-01-28
申请人： Caterpillar Inc.
IPC分类号： F02B37/22
CPC分类号： F02B37/22 , F02D2250/34
摘要： An annular disk comprises a front surface, a rear surface, an outer surface, and an inner surface. The front surface has a front opening within a front plane. The rear surface has a rear opening within a rear plane. The rear opening, which has a diameter that is smaller than a diameter of the front opening, communicates with the front opening to define a bore for guiding an exhaust stream flowing from a turbocharger to an exhaust outlet. The outer surface connects the front surface to the rear surface and includes an outer angled portion, an outer radial portion, and an outer axial portion. The inner surface includes an inner angled portion, an inner axial portion, and an inner radial portion extending between the inner angled portion and the inner axial portion. The inner radial portion is configured to obstruct a portion of the exhaust stream to increase back pressure.
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公开(公告)号：US20230071968A1
公开(公告)日：2023-03-09
申请号：US17823994
申请日：2022-09-01
IPC分类号： F02D19/06 , F02B37/16 , F02B37/18 , F02B37/22 , F02B37/24 , F02D41/00 , F02D41/14 , F02D41/30
摘要： A conventional gasoline engine is retrofitted and calibrated to operate as a bi-fuel engine using Hydrogen as the second fuel. When operated with Hydrogen, which typically leads to a reduction of engine output power, the engine is preferably operated in a charged mode and in a lean mode with the engine throttle kept in a wide-open position during charged and lean mode operation resulting in a more efficient engine with a reduction of engine output power loss.
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