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公开(公告)号：US11697341B2
公开(公告)日：2023-07-11
申请号：US17085208
申请日：2020-10-30
发明人： Arne Andersson , Staffan Lundgren
IPC分类号： B60K11/02 , H01M10/613 , H01M10/625 , H01M10/6568 , H01M10/66 , H01M8/2457 , B60L50/60 , B60L50/70 , B60K15/03 , B60T1/06 , B60T13/10 , H01M8/04029 , H01M8/04701
CPC分类号： B60K11/02 , B60K15/03006 , B60L50/60 , B60L50/70 , B60T1/062 , B60T13/10 , H01M8/04029 , H01M8/04701 , H01M8/2457 , H01M10/613 , H01M10/625 , H01M10/6568 , H01M10/66 , H01M2220/20 , H01M2250/20
摘要： A combined cooling and water braking system for a vehicle comprises a first water recirculation loop having a first heat exchanger configured to cool water flowing in the first water recirculation loop, the first water recirculation loop comprising a water conduit for transporting heat away from a propulsion device configured to generate a propulsion power for the vehicle. A second water recirculation loop having a second heat exchanger is configured to cool water flowing in the second water recirculation loop. A retarder is configured to be coupled to a pair of wheels of the vehicle. The second water recirculation loop may be selectively used for cooling the propulsion device and for providing water to the retarder for water braking. There is also provided a method for cooling a propulsion device of a vehicle and water braking a pair of wheels of a vehicle.
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公开(公告)号：US11378027B2
公开(公告)日：2022-07-05
申请号：US17254044
申请日：2018-06-26
摘要： The invention provides a method for controlling an internal combustion engine (2) for controlling an internal combustion engine (2) comprising at least one first cylinder (201) and at least one second cylinder (202) with respective reciprocating pistons, an intake guide (305) arranged to guide air from a fresh air intake arrangement (303) to the first and second cylinders (201, 202), a fuel system (801, 802) arranged to inject fuel into the first and second cylinders (201, 202), a first exhaust guide (401) and a second exhaust guide (402) arranged to guide gases from the first and second cylinders (201, 202), respectively, towards an exhaust after treatment system (7), the method comprising—receiving (S1) in the first cylinder (201), from the intake guide (305), air from the fresh air intake arrangement (303) or gases including air from the fresh air intake arrangement (303), —expelling from the first cylinder (201), to the first exhaust guide (401), gases in the form of the air received in the first cylinder, or in the form of exhaust gases from combustions in the first cylinder, including a portion of the air received in the first cylinder (201), —controlling (S4) a first exhaust valve (411) located in the first exhaust guide (401) so as to reduce or inhibit the transport of the gases from the first cylinder (201) to the exhaust after treatment system (7) and simultaneously recirculating the gases from the first exhaust guide (401) to the intake guide (305) by means of an exhaust gas recirculating (EGR) passage (404), —receiving in the second cylinder (202), from the intake guide (305), at least a portion of the gases recirculated from the first exhaust guide (401) to the intake guide (305), —injecting (S5) fuel into the second cylinder (202) so as to provide repetitive combustions with air in the received gases, —expelling from the second cylinder (202), to the second exhaust guide (402), the exhaust gases produced by the combustions in the second cylinder (202), and—controlling a second exhaust valve (412) located in the second exhaust guide (402) so as to guide the exhaust gases expelled from the second cylinder through the second exhaust guide (402) towards the exhaust after treatment system (7).
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公开(公告)号：US11125124B2
公开(公告)日：2021-09-21
申请号：US16960670
申请日：2019-01-18
摘要： The invention relates to a system (100) for operating a valve of an internal combustion engine (10), said system comprising a primary fluid circuit (60) configured to define a fluid passageway for circulating a compressible fluid medium there through being operatively connectable to an actuator (92) of an actuated flow control valve (90, 95) of said internal combustion engine, thereby capable of delivering a valve opening force. The system further comprises: a secondary fluid circuit (80) configured to define a secondary fluid passageway for transporting a compressed fluid medium, and having an inlet passage (87) connectable to a cylinder for receiving the compressed fluid medium; and an auxiliary pressurized system (81) comprising a chamber (83) and at least one reciprocating member (82) operable in said chamber (83), said auxiliary pressurized system (81) being arranged in fluid communication with said secondary fluid circuit (80) and in fluid communication with said primary fluid circuit such that said at least one reciprocating member (82) pressurizes said primary fluid circuit when said compressed fluid medium of the secondary fluid circuit acts on said at least one reciprocating member (82).
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公开(公告)号：US11067009B2
公开(公告)日：2021-07-20
申请号：US16976974
申请日：2018-03-16
发明人： David Carlson , Staffan Lundgren
摘要： The invention relates to a method (100) for estimating a cylinder pressure (CP) in an internal combustion engine arrangement (10), the method comprising the steps of: initiating (110) an opening of a valve by an actuator during an expansion stroke; monitoring (120) the valve to determine a point in time (Tp) when the valve opens; determining (130) a differential pressure (DP) between the combustion cylinder and a position in a fluid medium exhaust passage (29, 39, 60) downstream said valve at the point in time (Tp); receiving (140) data being indicative of a pressure (EP) in the fluid medium passage at the point in time (Tp); and determining (150) the cylinder pressure (CP) at the point in time (Tp) based on the determined differential pressure (DP) and the data indicative of the pressure in said fluid medium passage.
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公开(公告)号：US10704447B2
公开(公告)日：2020-07-07
申请号：US16060967
申请日：2015-12-14
IPC分类号： F01N13/00 , F01N3/20 , F02M35/10 , F01N13/14 , F02G1/02 , F02G3/02 , F02B33/20 , F02B33/44 , F02B37/10 , F02B41/06 , F02M31/04 , F01N3/035 , F02M31/093 , F01N3/021 , F01N13/10
摘要： An internal combustion engine system includes at least one combustor, a compressor arranged to compress air, an air guide arranged to guide compressed air from the compressor to at least one of the at least one combustor, an expander arranged to expand exhaust gases from at least one of the at least one combustor and to extract energy from the expanded exhaust gases, and an exhaust guide arranged to guide exhaust gases from at least one of the at least one combustor to the expander, wherein the exhaust guide is at least partly integrated with the air guide.
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公开(公告)号：US09803541B2
公开(公告)日：2017-10-31
申请号：US15129834
申请日：2014-03-28
发明人： Arne Andersson , Bincheng Jiang , Staffan Lundgren
CPC分类号： F02B41/08 , F02B33/02 , F02B33/06 , F02B33/18 , F02B33/22 , F02B41/06 , F02B75/02 , F02B75/225 , F02B2075/025 , F02B2075/027
摘要： An internal combustion engine includes a first low-pressure cylinder housing a first low-pressure piston, and a first high-pressure cylinder housing a first high-pressure piston, the first high-pressure cylinder being arranged in upstream fluid communication with the first low-pressure cylinder for providing exhaust gas into the first low-pressure cylinder. The internal combustion engine further includes a second low-pressure cylinder housing a second low-pressure piston, the second low-pressure cylinder being arranged in upstream fluid communication with the first high-pressure cylinder for providing compressed gas into the first high-pressure cylinder, and a second high-pressure cylinder housing a second high-pressure piston, the second high-pressure cylinder being arranged in downstream fluid communication with the first low-pressure cylinder for receiving compressed gas from the first low-pressure cylinder, and further arranged in upstream fluid communication with the second low-pressure cylinder for providing exhaust gas into the second low-pressure cylinder.
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公开(公告)号：US11118503B2
公开(公告)日：2021-09-14
申请号：US16488811
申请日：2017-03-15
发明人： Arne Andersson , Staffan Lundgren
IPC分类号： F02B41/06
摘要： The invention relates to an internal combustion engine comprising a combustion cylinder housing a combustion piston, a compressor cylinder housing a compressor piston, an expander cylinder housing an expander piston, and a crankshaft connected to the combustion piston and the expander piston by a respective connecting rod. The internal combustion engine further comprises a connecting element rigidly connecting the compressor piston and the expander piston such that the compressor piston and the expander piston move in unison.
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公开(公告)号：US20210108559A1
公开(公告)日：2021-04-15
申请号：US16488811
申请日：2017-03-15
发明人： Arne Andersson , Staffan Lundgren
IPC分类号： F02B41/06
摘要： The invention relates to an internal combustion engine comprising a combustion cylinder housing a combustion piston, a compressor cylinder housing a compressor piston, an expander cylinder housing an expander piston, and a crankshaft connected to the combustion piston and the expander piston by a respective connecting rod. The internal combustion engine further comprises a connecting element rigidly connecting the compressor piston and the expander piston such that the compressor piston and the expander piston move in unison.
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公开(公告)号：US10774712B2
公开(公告)日：2020-09-15
申请号：US16060968
申请日：2015-12-14
摘要： An internal combustion engine system includes a compressor arranged to compress air, at least one combustor, at least one of the at least one combustor being arranged to receive the compressed air, and an exhaust treatment device arranged to process exhaust gases produced by at least one of the at least one combustor, a heat exchanger arranged to receive the compressed air from the compressor before it reaches the at least one of the at least one combustor, and wherein the heat exchanger is arranged to transfer heat from the compressed air to the exhaust treatment device.
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公开(公告)号：US10094273B2
公开(公告)日：2018-10-09
申请号：US15106184
申请日：2013-12-19
摘要： An internal combustion engine including a first set of cylinders includes: a first two-stroke compression cylinder housing a first compression piston connected to a first crank shaft; an intermediate two-stroke compression cylinder housing an intermediate compression piston, wherein the second two-stroke compression cylinder is configured to receive compressed gas from the first two-stroke compression cylinder; and a first four-stroke combustion cylinder housing a first combustion piston, wherein the first four-stroke combustion cylinder is configured to receive compressed gas from the intermediate two-stroke compression cylinder; wherein the internal combustion engine further includes a second set of cylinders including: a second two-stroke compression cylinder housing a second compression piston connected to the first crank shaft, wherein the second two-stroke compression cylinder is configured to provide compressed gas to the intermediate two-stroke compression cylinder; and a second four-stroke combustion cylinder housing a second combustion piston, wherein the second four-stroke combustion cylinder is configured to receive compressed gas from the intermediate two-stroke compression cylinder; wherein each one of the intermediate compression piston and the first and second combustion pistons are connected to a second crank shaft, the second crank shaft being configured to rotate with a speed of at least twice the speed of the first crank shaft.
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