公开(公告)号：US08931255B2

公开(公告)日：2015-01-13

申请号：US13644214

申请日：2012-10-03

Applicant: Cummins Inc.

Inventor： Michael A. Wilson

IPC: F01N3/00 ,  F01N3/10 ,  F02D7/00 ,  F02D41/00 ,  F02D41/02 ,  F02D41/40 ,  F01N3/20

CPC classification number: F02D41/025 ,  F01N3/10 ,  F01N3/208 ,  F01N2900/16 ,  F02D41/0082 ,  F02D41/0087 ,  F02D41/405 ,  F02D2200/0802 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/44

Abstract: One embodiment is a unique strategy for raising exhaust temperatures which includes deactivating a first group of cylinders while maintaining a second group of cylinders in a combustion mode and injecting fuel into each of one of the second group of cylinders not earlier than 2 degrees before top dead center (TDC). The strategy also includes passing fuel rich exhaust from the second group of cylinders into an exhaust pathway and oxidizing at least a portion of the fuel rich exhaust in the exhaust pathway. In one form, the oxidizing occurs independent of any catalytic influence. Other embodiments include unique methods, systems, and apparatus for raising exhaust temperatures and/or regenerating one or more components of an aftertreatment system. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings.

Abstract translation: 一个实施例是用于提高排气温度的独特策略，其包括停用第一组气缸，同时将燃烧模式中的第二组气缸保持在第二组气缸中的每一个中，而不是在死前不超过2度 中心（TDC）。 该策略还包括将来自第二组气缸的富燃料排放到排气通道中，并且将排气通道中富含燃料的排气的至少一部分氧化。 在一种形式中，氧化发生不受任何催化影响。 其它实施例包括用于提高排气温度和/或再生后处理系统的一个或多个组件的独特方法，系统和装置。 从以下说明和附图，其他实施例，形式，目的，特征，优点，方面和优点将变得显而易见。

公开(公告)号：US20150121852A1

公开(公告)日：2015-05-07

申请号：US14591315

申请日：2015-01-07

Applicant: Cummins Inc.

Inventor： Michael A. Wilson

IPC: F02D41/02 ,  F02D41/00 ,  F02D41/40 ,  F01N3/20

CPC classification number: F02D41/025 ,  F01N3/10 ,  F01N3/208 ,  F01N2900/16 ,  F02D41/0082 ,  F02D41/0087 ,  F02D41/405 ,  F02D2200/0802 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/44

Abstract: One embodiment is a unique strategy for raising exhaust temperatures which includes deactivating a first group of cylinders while maintaining a second group of cylinders in a combustion mode and injecting fuel into each of one of the second group of cylinders not earlier than 2 degrees before top dead center (TDC). The strategy also includes passing fuel rich exhaust from the second group of cylinders into an exhaust pathway and oxidizing at least a portion of the fuel rich exhaust in the exhaust pathway. In one form, the oxidizing occurs independent of any catalytic influence. Other embodiments include unique methods, systems, and apparatus for raising exhaust temperatures and/or regenerating one or more components of an aftertreatment system. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings.

Abstract translation: 一个实施例是用于提高排气温度的独特策略，其包括停用第一组气缸，同时将燃烧模式中的第二组气缸保持在第二组气缸中的每一个中，而不是在死前不超过2度 中心（TDC）。 该策略还包括将来自第二组气缸的富燃料排放到排气通道中，并且将排气通道中富含燃料的排气的至少一部分氧化。 在一种形式中，氧化发生不受任何催化影响。 其它实施例包括用于提高排气温度和/或再生后处理系统的一个或多个组件的独特方法，系统和装置。 从以下说明和附图，其他实施例，形式，目的，特征，优点，方面和优点将变得显而易见。

公开(公告)号：US20140090360A1

公开(公告)日：2014-04-03

申请号：US13644214

申请日：2012-10-03

Applicant: CUMMINS INC.

Inventor： Michael A. Wilson

IPC: F01N3/10

CPC classification number: F02D41/025 ,  F01N3/10 ,  F01N3/208 ,  F01N2900/16 ,  F02D41/0082 ,  F02D41/0087 ,  F02D41/405 ,  F02D2200/0802 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/44

Abstract: One embodiment is a unique strategy for raising exhaust temperatures which includes deactivating a first group of cylinders while maintaining a second group of cylinders in a combustion mode and injecting fuel into each of one of the second group of cylinders not earlier than 2 degrees before top dead center (TDC). The strategy also includes passing fuel rich exhaust from the second group of cylinders into an exhaust pathway and oxidizing at least a portion of the fuel rich exhaust in the exhaust pathway. In one form, the oxidizing occurs independent of any catalytic influence. Other embodiments include unique methods, systems, and apparatus for raising exhaust temperatures and/or regenerating one or more components of an aftertreatment system. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings.

Abstract translation: 一个实施例是用于提高排气温度的独特策略，其包括停用第一组气缸，同时将燃烧模式中的第二组气缸保持在第二组气缸中的每一个中，而不是在死前不超过2度 中心（TDC）。 该策略还包括将来自第二组气缸的富燃料排放到排气通道中，并且将排气通道中富含燃料的排气的至少一部分氧化。 在一种形式中，氧化发生不受任何催化影响。 其它实施例包括用于提高排气温度和/或再生后处理系统的一个或多个组件的独特方法，系统和装置。 从以下说明和附图，其他实施例，形式，目的，特征，优点，方面和优点将变得显而易见。

公开(公告)号：US09523319B2

公开(公告)日：2016-12-20

申请号：US14591315

申请日：2015-01-07

Applicant: Cummins Inc.

Inventor： Michael A. Wilson

IPC: F01N3/10 ,  F01N3/20 ,  F02D41/40 ,  F02D41/02 ,  F02D41/00

CPC classification number: F02D41/025 ,  F01N3/10 ,  F01N3/208 ,  F01N2900/16 ,  F02D41/0082 ,  F02D41/0087 ,  F02D41/405 ,  F02D2200/0802 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/44

Abstract: One embodiment is a unique strategy for raising exhaust temperatures which includes deactivating a first group of cylinders while maintaining a second group of cylinders in a combustion mode and injecting fuel into each of one of the second group of cylinders not earlier than 2 degrees before top dead center (TDC). The strategy also includes passing fuel rich exhaust from the second group of cylinders into an exhaust pathway and oxidizing at least a portion of the fuel rich exhaust in the exhaust pathway. In one form, the oxidizing occurs independent of any catalytic influence. Other embodiments include unique methods, systems, and apparatus for raising exhaust temperatures and/or regenerating one or more components of an aftertreatment system. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings.