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公开(公告)号：US20160032850A1
公开(公告)日：2016-02-04
申请号：US14451025
申请日：2014-08-04
Applicant: Caterpillar Inc.
Inventor： Ryan T. Sunley , Sylvain Charbonnel , Spencer Huhn
CPC classification number: F02D41/0055 , F01N3/2066 , F01N9/002 , F01N11/002 , F01N13/009 , F01N2610/02 , F01N2900/0408 , F01N2900/0412 , F01N2900/1404 , F02B37/16 , F02D41/0007 , F02D41/0245 , F02D41/027 , F02D41/029 , F02D2200/0802 , F02M26/47 , F02M2026/004 , Y02T10/144 , Y02T10/24 , Y02T10/26 , Y02T10/47
Abstract: There is disclosed a method of regenerating at least one aftertreatment device in an exhaust system of an internal combustion engine by changing a calibration of the exhaust gas recirculation system with the engine to increase temperature of exhaust gas provided to the at least one aftertreatment device, and further incrementally changing the calibration to obtain an exhaust gas temperature within a target regeneration temperature range.
Abstract translation: 公开了一种在内燃机的排气系统中再生至少一个后处理装置的方法，该方法是通过用发动机改变废气再循环系统的校准以增加提供给至少一个后处理装置的废气的温度，以及 进一步递增地改变校准以获得目标再生温度范围内的排气温度。
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公开(公告)号：US10830191B1
公开(公告)日：2020-11-10
申请号：US16544757
申请日：2019-08-19
Applicant: Caterpillar Inc.
Inventor： Wade Robel , Spencer Huhn
Abstract: A system is disclosed that may include a gas recirculation passageway configured to recirculate gas exiting an engine to an intake of the engine prior to the gas reaching an aftertreatment system associated with the engine. The system may include a valve configured to control a gas recirculation of the gas recirculation passageway. The system may include a controller configured to cause, during a compression braking procedure for the engine, actuation of the valve to produce the gas recirculation when the aftertreatment system is performing an operation that is temperature-dependent.
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公开(公告)号：US10760513B1
公开(公告)日：2020-09-01
申请号：US16389299
申请日：2019-04-19
Applicant: Caterpillar Inc.
Inventor： Spencer Huhn , Wade J. Robel , Lifeng Wang , Dana Coldren , Kevin Weiss
Abstract: A method of increasing parasitic load on an internal combustion engine includes injecting a fuel into a combustion chamber of an active cylinder of the internal combustion engine, combusting the injected fuel in the combustion chamber of the active cylinder, and determining that increasing a temperature of an exhaust aftertreatment device is required. The method includes increasing a parasitic load on the internal combustion engine by deactivating a cylinder, wherein no fuel is injected in the deactivated cylinder for a combustion cycle of the internal combustion engine, and further increasing the parasitic load by pulsing a spill valve member of a spill valve of a fuel injector in the deactivated cylinder between a fully closed position and an at least partially open position.
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公开(公告)号：US09611793B2
公开(公告)日：2017-04-04
申请号：US14451025
申请日：2014-08-04
Applicant: Caterpillar Inc.
Inventor： Ryan T. Sunley , Sylvain Charbonnel , Spencer Huhn
IPC: F01N3/00 , F02M25/06 , F01N3/10 , F02D41/00 , F02D41/02 , F02B37/16 , F01N3/20 , F01N9/00 , F01N11/00 , F02M26/47 , F02M26/00 , F01N13/00
CPC classification number: F02D41/0055 , F01N3/2066 , F01N9/002 , F01N11/002 , F01N13/009 , F01N2610/02 , F01N2900/0408 , F01N2900/0412 , F01N2900/1404 , F02B37/16 , F02D41/0007 , F02D41/0245 , F02D41/027 , F02D41/029 , F02D2200/0802 , F02M26/47 , F02M2026/004 , Y02T10/144 , Y02T10/24 , Y02T10/26 , Y02T10/47
Abstract: There is disclosed a method of regenerating at least one aftertreatment device in an exhaust system of an internal combustion engine by changing a calibration of the exhaust gas recirculation system with the engine to increase temperature of exhaust gas provided to the at least one aftertreatment device, and further incrementally changing the calibration to obtain an exhaust gas temperature within a target regeneration temperature range.
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