-
公开(公告)号：US20140158085A1
公开(公告)日：2014-06-12
申请号：US13711785
申请日：2012-12-12
Applicant: CATERPILLAR INC.
Inventor： D. Ryan Williams , Scott B. Fiveland
IPC: F02B75/02
CPC classification number: F02B75/021 , F02D41/403 , F02D41/405 , Y02T10/44
Abstract: An internal combustion engine operates on a six-stroke combustion cycle including a first compression stroke, a first power stroke, a second compression stroke, and a second power stroke. A first preliminary fuel charge is introduced to a combustion chamber of the engine during the first compression stroke. Subsequently, a first main fuel charge is introduced and the first preliminary and first main fuel charges are combusted to power the first power stroke. During the second compression stroke, a second preliminary fuel charge is introduced to the combustion chamber. Subsequently, a second main fuel charge is introduced during one of the second compression stroke and second power stroke. The second preliminary and second main fuel charges are combusted to power the second power stroke.
Abstract translation: 内燃机在包括第一压缩冲程，第一动力冲程，第二压缩冲程和第二动力冲程的六冲程燃烧循环中操作。 在第一压缩冲程期间，将第一初步燃料装料引入发动机的燃烧室。 随后，引入第一主燃料装料并且第一初始和第一主燃料装料燃烧以对第一动力冲程供电。 在第二压缩冲程期间，将第二初步燃料装料引入燃烧室。 随后，在第二压缩冲程和第二动力冲程之一期间引入第二主燃料装料。 第二个初级和第二个主要燃料燃料燃烧以对第二次动力冲程供电。
-
公开(公告)号：US09057324B2
公开(公告)日：2015-06-16
申请号：US13711753
申请日：2012-12-12
Applicant: Caterpillar Inc.
Inventor： D. Ryan Williams , Scott B. Fiveland
CPC classification number: F02B75/021 , F02B37/001 , F02B37/013 , F02B41/04 , F02D13/0215 , F02D13/0273 , F02D13/0276 , F02D41/0007 , F02M26/08 , F02M26/23 , F02M26/38 , F02M26/42 , F02M2023/008 , Y02T10/144 , Y02T10/18
Abstract: A six-stroke engine system including an engine with a combustion chamber including an exhaust valve that expels exhaust gasses, a blowdown exhaust valve that expel blowdown exhaust gasses during recompression, and an intake valve and a blowdown compressor intake valve that introduce air. An exhaust line directs exhaust gasses to drive a turbine, which drives a compressor. An intake line receives compressed air from the compressor and directs it into the combustion chamber through the intake valve. A blowdown exhaust line, separate from the exhaust line, directs blowdown exhaust gasses from the blowdown exhaust valve to drive the blowdown turbine, which drives a blowdown compressor. A blowdown compressor line directs compressed air from the intake line into the blowdown compressor, and directs super-compressed air from the blowdown compressor through the blowdown compressor intake valve during recompression.
Abstract translation: 一种六冲程发动机系统，包括具有燃烧室的发动机，所述燃烧室包括排出废气的排气阀，在再压缩期间排出排气废气的排污排气阀，以及引入空气的进气阀和排气压缩机进气阀。 排气管路引导废气驱动涡轮，驱动压缩机。 进气管线从压缩机接收压缩空气，并通过进气阀将其引导到燃烧室。 与排气管路分开的排污排气管路将排污排气阀排放到排污阀门，以驱动排污涡轮机，驱动排污压缩机。 排污压缩机管线将压缩空气从进气管路引导到排污压缩机中，并在再压缩期间通过排污压缩机进气阀引导来自排污压缩机的超压缩空气。
-
公开(公告)号：US20140158100A1
公开(公告)日：2014-06-12
申请号：US13711761
申请日：2012-12-12
Applicant: CATERPILLAR INC.
Inventor： D. Ryan Williams , Scott B. Fiveland
IPC: F02M25/07
CPC classification number: F02M26/06 , F02B75/021 , F02D13/0223 , F02D13/0273 , F02D41/0052 , F02D41/006 , F02D41/3058 , F02D2041/001 , F02M26/01 , F02M26/05 , F02M26/52 , Y02T10/18 , Y02T10/47
Abstract: An engine combustion cylinder is fluidly connectable to an intake system through an intake valve and to an exhaust system through an exhaust valve. A valve activation system is to activate the intake valve and the exhaust valve. The valve activation system is responsive to a controller providing command signals to the valve activation system such that, when the engine operates in a six-stroke combustion cycle, the intake valve is opened during a recompression stroke to allow a portion of the products from the first combustion stroke to exit the combustion cylinder and enter into the intake system.
Abstract translation: 发动机燃烧气缸通过进气门和排气系统通过排气阀可流体地连接到进气系统。 阀门启动系统是激活进气门和排气阀。 阀启动系统响应于向阀启动系统提供命令信号的控制器，使得当发动机在六冲程燃烧循环中操作时，进气阀在再压缩冲程期间打开以允许一部分产品从 第一次燃烧行程离开燃烧缸并进入进气系统。
-
公开(公告)号：US20140158087A1
公开(公告)日：2014-06-12
申请号：US13712254
申请日：2012-12-12
Applicant: CATERPILLAR INC.
Inventor： Ronald Silver , Scott B. Fiveland , D. Ryan Williams
CPC classification number: F01N3/10 , F01N3/0814 , F01N3/0842 , F01N3/2066 , F02B75/021 , F02B2275/14 , F02D13/0273 , F02D41/0275 , F02M26/05 , F02M26/06 , F02M26/23 , F02M2023/008 , Y02T10/123 , Y02T10/18 , Y02T10/24
Abstract: An internal combustion engine operates on a six-stroke combustion cycle including a first compression stroke, a first power stroke, a second compression stroke, and a second power stroke. A first fuel charge is introduced to a combustion chamber of the engine at a first fuel rate during the first compression and/or first power stroke to produce lean exhaust gasses. A second fuel charge is also introduced to the combustion chamber during the second compression and/or second power stroke to normally produce lean exhaust gasses. Periodically, the second fuel charge can be increased to a second fuel rate to produce stoichiometric rich exhaust gasses. A lean nitrogen oxide trap can be disposed in an exhaust system associated with the engine to temporarily trap nitrogen oxides. Once saturated, the LNT can be periodically regenerated by production of the rich exhaust gasses.
Abstract translation: 内燃机在包括第一压缩冲程，第一动力冲程，第二压缩冲程和第二动力冲程的六冲程燃烧循环中操作。 在第一压缩和/或第一动力冲程期间以第一燃料速率将第一燃料装料引入发动机的燃烧室以产生贫废气。 在第二压缩和/或第二功率冲程期间，第二燃料装料也被引入燃烧室，以正常地产生贫排气。 周期性地，第二燃料充量可以增加到第二燃料速率以产生化学计量的富排气。 贫氮氧化物捕集器可以设置在与发动机相关联的排气系统中以暂时捕获氮氧化物。 一旦饱和，可以通过生产富排气来定期再生LNT。
-
公开(公告)号：US20140158084A1
公开(公告)日：2014-06-12
申请号：US13712347
申请日：2012-12-12
Applicant: CATERPILLAR INC.
Inventor： Scott B. Fiveland , D. Ryan Williams
IPC: F02B75/02
CPC classification number: F02B75/021 , F01L1/38 , F02D13/0276 , F02M26/05 , F02M26/06 , F02M26/07 , F02M26/20 , F02M26/37 , F02M2026/004 , F02M2026/005
Abstract: A six-stroke engine system including an engine with a combustion chamber including an exhaust valve that expels exhaust gasses during an exhaust stroke, and a blowdown exhaust valve that expels blowdown exhaust gasses during recompression. An intake line directs air into the combustion chamber, and an exhaust line directs exhaust gasses from combustion chamber. A blowdown exhaust line directs blowdown exhaust gasses out of the combustion chamber and into the intake line. The blowdown exhaust gasses are expelled through the blowdown exhaust valve during recompression, and exhaust gasses are expelled through the exhaust valve during the exhaust stroke.
Abstract translation: 一种六冲程发动机系统，包括具有燃烧室的发动机，该燃烧室包括在排气冲程期间排出废气的排气阀，以及在再压缩期间排出排气的排放排气阀。 进气管线将空气引导到燃烧室中，排气管线将排气从燃烧室引导。 排污排气管路将废气排放出燃烧室并进入进气管线。 在再压缩期间，排污废气通过排放排气阀排出，并且在排气冲程期间排气通过排气阀排出。
-
Patent Agency Ranking
公开(公告)号：US20140157758A1
公开(公告)日：2014-06-12
申请号：US13712182
申请日：2012-12-12
Applicant: CATERPILLAR INC.
Inventor： Ronald Silver , Scott B. Fiveland , D. Ryan Williams
CPC classification number: F01N3/2066 , F01N3/103 , F01N3/208 , F01N2610/02 , Y02T10/24
Abstract: A method and system of operating an internal combustion engine on a six-stroke cycle utilizes an after-treatment system to reduce emissions such as nitrogen oxides. The method and system introduce a first fuel charge to a combustion chamber and combusts the first fuel charge to produce a first stoichiometric lean condition. The method and system next introduce a second fuel charge and combust the second fuel charge to produce a second stoichiometric lean conditions. The exhaust gasses are then directed to a selective catalytic reduction catalyst with a reductant agent to reduce the nitrogen oxides to nitrogen and water.
Abstract translation: 在六冲程循环中操作内燃机的方法和系统利用后处理系统来减少氮氧化物的排放。 该方法和系统向燃烧室引入第一燃料装料并燃烧第一燃料装料以产生第一化学计量的稀薄条件。 该方法和系统接下来引入第二燃料电荷并燃烧第二燃料电荷以产生第二化学计量的稀薄条件。 然后将废气导入具有还原剂的选择性催化还原催化剂以将氮氧化物还原成氮和水。
-
公开(公告)号：US09133764B2
公开(公告)日：2015-09-15
申请号：US13712347
申请日：2012-12-12
Applicant: Caterpillar Inc.
Inventor： Scott B. Fiveland , D. Ryan Williams
CPC classification number: F02B75/021 , F01L1/38 , F02D13/0276 , F02M26/05 , F02M26/06 , F02M26/07 , F02M26/20 , F02M26/37 , F02M2026/004 , F02M2026/005
Abstract: A six-stroke engine system including an engine with a combustion chamber including an exhaust valve that expels exhaust gasses during an exhaust stroke, and a blowdown exhaust valve that expels blowdown exhaust gasses during recompression. An intake line directs air into the combustion chamber, and an exhaust line directs exhaust gasses from combustion chamber. A blowdown exhaust line directs blowdown exhaust gasses out of the combustion chamber and into the intake line. The blowdown exhaust gasses are expelled through the blowdown exhaust valve during recompression, and exhaust gasses are expelled through the exhaust valve during the exhaust stroke.
Abstract translation: 一种六冲程发动机系统，包括具有燃烧室的发动机，该燃烧室包括在排气冲程期间排出废气的排气阀，以及在再压缩期间排出排气的排放排气阀。 进气管线将空气引导到燃烧室中，排气管线将排气从燃烧室引导。 排污排气管路将废气排放出燃烧室并进入进气管线。 在再压缩期间，排污废气通过排放排气阀排出，并且在排气冲程期间排气通过排气阀排出。
-
公开(公告)号：US08978601B2
公开(公告)日：2015-03-17
申请号：US13711743
申请日：2012-12-12
Applicant: Caterpillar Inc.
Inventor： D. Ryan Williams , Scott B. Fiveland
CPC classification number: F02B75/021 , F02B3/06
Abstract: A six-stroke engine system including an engine with a combustion chamber including an exhaust valve that expels exhaust gasses and a blowdown exhaust valve that expels blowdown exhaust gasses during recompression. An exhaust line communicates with the engine to direct exhaust gasses out of the combustion chamber, and a blowdown exhaust line communicates with the engine to direct blowdown exhaust gasses out of the combustion chamber and into the exhaust line. The blowdown exhaust gasses are expelled through the blowdown exhaust valve during the recompression stroke, and the exhaust gasses are expelled through the exhaust valve during the exhaust stroke.
Abstract translation: 一种六冲程发动机系统，其包括具有燃烧室的发动机，该燃烧室包括排出废气的排气阀，以及在再压缩期间排出排气废气的排污排气阀。 排气管路与发动机连通，将废气排出燃烧室，排污管线与发动机连通，将废气排放出燃烧室并进入排气管路。 在再压缩冲程期间，排气排气通过排放排气阀排出，并且在排气冲程期间废气通过排气阀排出。
-
公开(公告)号：US20140158070A1
公开(公告)日：2014-06-12
申请号：US13711776
申请日：2012-12-12
Applicant: CATERPILLAR INC.
Inventor： D. Ryan Williams , Scott B. Fiveland
IPC: F02B75/02
CPC classification number: F02B75/021 , F02D13/0203 , F02D13/0269 , F02D13/0273 , F02D41/0002 , F02D41/005 , F02D2041/001 , F02M26/05 , F02M26/06 , Y02T10/142 , Y02T10/18 , Y02T10/42 , Y02T10/47
Abstract: An engine combustion cylinder is fluidly connectable to an intake system through an intake valve and to an exhaust system through an exhaust valve. A valve activation system is to activate the intake valve and the exhaust valve. The valve activation system is responsive to a controller providing command signals to the valve activation system such that, when the engine operates in a six-stroke combustion cycle, the intake valve is opened during a recompression stroke to allow a portion of the products from the first combustion stroke to exit the combustion cylinder and enter into the intake system. This may be done to match the power densities of the first and second power strokes of the piston.
Abstract translation: 发动机燃烧气缸通过进气门和排气系统通过排气阀可流体地连接到进气系统。 阀门启动系统是激活进气门和排气阀。 阀启动系统响应于向阀启动系统提供命令信号的控制器，使得当发动机在六冲程燃烧循环中操作时，进气阀在再压缩冲程期间打开以允许一部分产品从 第一次燃烧行程离开燃烧缸并进入进气系统。 这可以进行以匹配活塞的第一和第二功率冲程的功率密度。
-
公开(公告)号：US20140158069A1
公开(公告)日：2014-06-12
申请号：US13711753
申请日：2012-12-12
Applicant: CATERPILLAR INC.
Inventor： D. Ryan Williams , Scott B. Fiveland
IPC: F02B75/02
CPC classification number: F02B75/021 , F02B37/001 , F02B37/013 , F02B41/04 , F02D13/0215 , F02D13/0273 , F02D13/0276 , F02D41/0007 , F02M26/08 , F02M26/23 , F02M26/38 , F02M26/42 , F02M2023/008 , Y02T10/144 , Y02T10/18
Abstract: A six-stroke engine system including an engine with a combustion chamber including an exhaust valve that expels exhaust gasses, a blowdown exhaust valve that expel blowdown exhaust gasses during recompression, and an intake valve and a blowdown compressor intake valve that introduce air. An exhaust line directs exhaust gasses to drive a turbine, which drives a compressor. An intake line receives compressed air from the compressor and directs it into the combustion chamber through the intake valve. A blowdown exhaust line, separate from the exhaust line, directs blowdown exhaust gasses from the blowdown exhaust valve to drive the blowdown turbine, which drives a blowdown compressor. A blowdown compressor line directs compressed air from the intake line into the blowdown compressor, and directs super-compressed air from the blowdown compressor through the blowdown compressor intake valve during recompression.
Abstract translation: 一种六冲程发动机系统，包括具有燃烧室的发动机，所述燃烧室包括排出废气的排气阀，在再压缩期间排出排气废气的排污排气阀，以及引入空气的进气阀和排气压缩机进气阀。 排气管路引导废气驱动涡轮，驱动压缩机。 进气管线从压缩机接收压缩空气，并通过进气阀将其引导到燃烧室。 与排气管路分开的排污排气管路将排污排气阀排放到排污阀门，以驱动排污涡轮机，驱动排污压缩机。 排污压缩机管线将压缩空气从进气管路引导到排污压缩机中，并在再压缩期间通过排污压缩机进气阀引导来自排污压缩机的超压缩空气。
-
-
-
-
-
-
-
-
-
Search Results
15
records
(took 0.014 seconds)
