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公开(公告)号：US20200347757A1
公开(公告)日：2020-11-05
申请号：US16960670
申请日：2019-01-18
Applicant: VOLVO TRUCK CORPORATION
Inventor： Staffan LUNDGREN , David CARLSON , Claes KUYLENSTIERNA
Abstract: 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：US20210231062A1
公开(公告)日：2021-07-29
申请号：US17050743
申请日：2018-04-25
Applicant: VOLVO TRUCK CORPORATION
Inventor： Staffan LUNDGREN
Abstract: The invention relates to a method of controlling operation of an ICE arrangement (1), comprising acquiring (100) a first signal indicative of a required torque; acquiring (102) a second signal indicative of a temperature (T) of an EATS (23); and when the second signal indicates that the temperature (T) of the EATS (23) is lower than a predefined first threshold temperature (T1): determining (108; 118) an amount of second fuel (17) needed to deliver the required torque; supplying the amount of second fuel (17); controlling (112; 122) an inlet valve (19) to allow flow of a second fuel-air mix into the cylinder (3); injecting first fuel (13) into the cylinder (3) when the second fuel-air mix is compressed by the piston (9), resulting in flame propagation ignition of the second fuel-air mix; and controlling (116; 126) and outlet valve (21) to allow flow of exhaust from the cylinder (3) during an exhaust stroke (ES) of the piston (9).
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公开(公告)号：US20190048808A1
公开(公告)日：2019-02-14
申请号：US16078690
申请日：2016-02-26
Applicant: VOLVO TRUCK CORPORATION
Inventor： Staffan LUNDGREN
Abstract: A fuel system for an internal combustion engine is provided including a first fuel container for a first fuel, a second fuel container for a second fuel, a pump, and a first fuel injector, the fuel system being arranged to provide a communication between the first fuel container and the pump and between the pump and the first fuel injector, and a reservoir with a separation device adapted to divide the reservoir into a first volume and a second volume, whereby the separation device may be moved or flexed by a pressure difference in the first and second volumes so as to change the sizes of the first and second volumes, wherein the fuel system is arranged to provide a communication between the pump and the first volume, and to provide a communication between the second fuel container and the second volume and between the second volume and a second fuel injector.
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公开(公告)号：US20170167366A1
公开(公告)日：2017-06-15
申请号：US15129834
申请日：2014-03-28
Applicant: VOLVO TRUCK CORPORATION
Inventor： Arne ANDERSSON , Bincheng JIANG , Staffan LUNDGREN
CPC classification number: F02B41/08 , F02B33/02 , F02B33/06 , F02B33/18 , F02B33/22 , F02B41/06 , F02B75/02 , F02B75/225 , F02B2075/025 , F02B2075/027
Abstract: 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：US20160333778A1
公开(公告)日：2016-11-17
申请号：US15106187
申请日：2013-12-19
Applicant: VOLVO TRUCK CORPORATION
Inventor： Arne ANDERSSON , Bincheng JIANG , Staffan LUNDGREN , Staffan JOHANSSON , Bengt JOHANSSON
CPC classification number: F02B75/02 , F01B1/04 , F01L1/047 , F02B33/22 , F02B41/06 , F02B75/22 , F02B75/225 , F02B2075/025 , F02B2075/027 , F16C3/06 , F16C3/20 , F16C2360/22
Abstract: 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; a first four-stroke combustion cylinder housing a first combustion piston connected to a second crank shaft, the first four-stroke combustion cylinder being configured to receive compressed gas from the first two-stroke compression cylinder; and a first two-stroke expansion cylinder housing a first expansion piston connected to the first crank shaft, the first two-stroke expansion cylinder being configured to receive exhaust gas from the first four-stroke combustion cylinder, wherein the first compression piston is positioned to reach a lower end position within the first compression cylinder and the first expansion piston is positioned to reach an upper end position within the first expansion cylinder when the first combustion piston reaches a lower end position within the first combustion cylinder; wherein the second crank shaft is configured to rotate with a speed of at least twice the speed of the first crank shaft.
Abstract translation: 包括第一组气缸的内燃机包括：第一二冲程压缩气缸，其容纳连接到第一曲轴的第一压缩活塞; 第一四冲程燃烧筒容纳连接到第二曲轴的第一燃烧活塞，第一四冲程燃烧气缸构造成从第一二冲程压缩气缸接收压缩气体; 以及第一二冲程膨胀缸，其容纳与所述第一曲轴连接的第一膨胀活塞，所述第一二冲程膨胀气缸构造成从所述第一四冲程燃烧气缸接收废气，其中所述第一压缩活塞定位成 当第一燃烧活塞到达第一燃烧气缸内的下端位置时，到达第一压缩气缸内的下端位置，第一膨胀活塞定位成到达第一膨胀气缸内的上端位置; 其特征在于，所述第二曲轴构造成以所述第一曲轴的速度的至少两倍的速度旋转。
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Patent Agency Ranking
公开(公告)号：US20210262403A1
公开(公告)日：2021-08-26
申请号：US17254044
申请日：2018-06-26
Applicant: VOLVO TRUCK CORPORATION
Inventor： Arne ANDERSSON , Staffan LUNDGREN , Lennart ANDERSSON
Abstract: 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：US20190048812A1
公开(公告)日：2019-02-14
申请号：US16079174
申请日：2017-03-09
Applicant: VOLVO TRUCK CORPORATION
Inventor： Staffan LUNDGREN
Abstract: A method is provided for operating an internal combustion piston engine, including introducing air into a cylinder of the engine, compressing the air in a first compression stroke of the cylinder, providing fuel into the cylinder for a first combustion, with a portion of the oxygen in the compressed air as oxidant, in a first power stroke succeeding the first compression stroke, to produce residues including oxygen, compressing the residues in a second compression stroke succeeding the first power stroke, and providing, after the first combustion, fuel into the cylinder for a second combustion, with at least a portion of the oxygen of the residues as oxidant, in a second power stroke succeeding the second compression stroke, wherein the first compression stroke is repealed immediately after the second power stroke, and the introduction of air into the cylinder is done at the end of the second power stroke and/or at the beginning of the first compression stroke.
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公开(公告)号：US20180363526A1
公开(公告)日：2018-12-20
申请号：US16060968
申请日：2015-12-14
Applicant: VOLVO TRUCK CORPORATION
Inventor： Lennart ANDERSSON , Arne ANDERSSON , Bengt JOHANSSON , Nhut LAM , Staffan LUNDGREN
Abstract: 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：US20170229727A1
公开(公告)日：2017-08-10
申请号：US15510688
申请日：2014-09-12
Applicant: VOLVO TRUCK CORPORATION
Inventor： Staffan LUNDGREN
IPC: H01M8/18 , H01M8/1246 , B60L11/18 , H01M8/04082
CPC classification number: H01M8/184 , B60L50/50 , B60L50/72 , B60L58/34 , H01M8/04201 , H01M8/04208 , H01M8/1246 , H01M8/225 , H01M12/08 , H01M2008/1293 , H01M2250/20 , Y02E60/128 , Y02T90/32 , Y02T90/34
Abstract: A device and a method for providing electricity to an electric motor for propulsion of a vehicle are provided. The method comprises the features of feeding Energy Carriers (EC) in the shape of particles having a first oxidation state (I) from a first container on board the vehicle to an Solid Oxide Fuel Cell (SOFC). The EC are reacted at the SOFC to change the oxidation state from the first oxidation (I) to the second oxidation state (II) while producing electric energy. The EC is thereafter fed from the SOFC to a second container on board the vehicle. A reversed reaction is enabled on board the vehicle, e.g., by applying a voltage to the SOFC to reverse the reaction, and the EC are reacted to change its oxidation state from its second oxidation state (II) back to its first oxidation state (I) before the EC is returned to the first container. A system for performing the method is also provided.
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公开(公告)号：US20220371434A1
公开(公告)日：2022-11-24
申请号：US17771855
申请日：2019-11-01
Applicant: Volvo Truck Corporation
Inventor： Arne ANDERSSON , Staffan LUNDGREN
Abstract: There is provided a truck, comprising a cab and a plurality of storage tanks secured behind the rear of the cab, wherein the storage tanks are configured to contain hydrogen gas. An energy conversion system is configured to receive hydrogen gas from the storage tanks and to convert the chemical energy of the hydrogen into mechanical or electric energy. A cooling arrangement is configured to cool the energy conversion system. A wall is provided behind the cab and laterally of the storage tanks, the wall having its main extension in a vertical plane, wherein said wall houses at least a part of said cooling arrangement.
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