公开(公告)号：US10030617B2

公开(公告)日：2018-07-24

申请号：US15132013

申请日：2016-04-18

Applicant: General Electric Company

Inventor： Omowoleola Chukuwuemeka Akinyemi ,  Adam Klingbeil ,  Neil Xavier Blythe ,  Shawn Michael Gallagher ,  James Robert Mischler ,  Luke Henry ,  Jennifer Lynn Jackson

IPC: F02B1/00 ,  F02M26/43 ,  F02D41/00 ,  F01N13/10 ,  F02D21/08 ,  F02M26/14 ,  F02M26/17 ,  F02D41/08 ,  F02M26/05

Abstract: Various methods for controlling EGR rate are disclosed. In one embodiment, a method comprises routing at least a portion of exhaust from a first exhaust manifold to an intake manifold, and not to atmosphere, the first exhaust manifold exclusively coupled to a first cylinder group. The method further includes routing exhaust from at least one additional exhaust manifold coupled to a corresponding at least one additional cylinder group to atmosphere, and during a first engine operating condition where an engine fuel demand is below a threshold demand, not injecting fuel to each of a subset of cylinders in the first cylinder group while injecting fuel to a subset of all cylinders coupled to the at least one additional exhaust manifold, where a number of cylinders of the subset of cylinders in the first cylinder group decreases in response to an increase in a target EGR rate.

公开(公告)号：US20160230712A1

公开(公告)日：2016-08-11

申请号：US15132013

申请日：2016-04-18

Applicant: General Electric Company

Inventor： Omowoleola Chukuwuemeka Akinyemi ,  Adam Klingbeil ,  Neil Xavier Blythe ,  Shawn Michael Gallagher ,  James Robert Mischler ,  Luke Henry ,  Jennifer Lynn Jackson

IPC: F02M26/43 ,  F01N13/10 ,  F02M26/17 ,  F02D41/00 ,  F02D41/30 ,  F02M26/14

CPC classification number: F02M26/43 ,  F01N13/107 ,  F02D21/08 ,  F02D41/005 ,  F02D41/0065 ,  F02D41/0087 ,  F02D41/08 ,  F02M26/05 ,  F02M26/14 ,  F02M26/17 ,  Y02T10/47

Abstract: Various methods for controlling EGR rate are disclosed. In one embodiment, a method comprises routing at least a portion of exhaust from a first exhaust manifold to an intake manifold, and not to atmosphere, the first exhaust manifold exclusively coupled to a first cylinder group. The method further includes routing exhaust from at least one additional exhaust manifold coupled to a corresponding at least one additional cylinder group to atmosphere, and during a first engine operating condition where an engine fuel demand is below a threshold demand, not injecting fuel to each of a subset of cylinders in the first cylinder group while injecting fuel to a subset of all cylinders coupled to the at least one additional exhaust manifold, where a number of cylinders of the subset of cylinders in the first cylinder group decreases in response to an increase in a target EGR rate.

Abstract translation: 公开了用于控制EGR率的各种方法。 在一个实施例中，一种方法包括将来自第一排气歧管的排气的至少一部分布置到进气歧管，而不是大气，第一排气歧管独特地联接到第一气缸组。 该方法还包括将至少一个附加的排气歧管的排气排放到联合到相应的至少一个附加气缸组的大气中，以及在发动机燃料需求低于阈值要求的第一发动机运行状态期间，不将燃料喷射到 第一气缸组中的气缸的子集，同时将燃料喷射到耦合到所述至少一个附加排气歧管的所有气缸的子集，其中第一气缸组中的气缸子集的数量的气缸响应于 目标EGR率。

公开(公告)号：US20160108873A1

公开(公告)日：2016-04-21

申请号：US14515992

申请日：2014-10-16

Applicant: General Electric Company

Inventor： Jennifer Lynn Jackson ,  Adam Edgar Klingbeil ,  Thomas Michael Lavertu

IPC: F02M43/00

CPC classification number: F02M43/00 ,  F02B29/0412 ,  F02D19/0647 ,  F02D19/0694 ,  F02D19/081 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/0082 ,  F02D41/34 ,  F02D41/40 ,  F02M26/22 ,  F02M26/43 ,  Y02T10/36

Abstract: A method of controlling an engine includes injecting a first fuel and a second fuel to each of a donor cylinder group and a non-donor cylinder group of the engine. The method also includes injecting a higher fraction of the first fuel into the donor cylinder group in comparison to the first fuel being injected into the non-donor cylinder group. Further, the method includes injecting a lower fraction of the second fuel into the donor cylinder group in comparison to the second fuel being injected into the non-donor cylinder group. Furthermore, the method includes recirculating an exhaust emission from the donor cylinder group to the non-donor cylinder group and the donor cylinder group and combusting a mixture of air, the first fuel, the second fuel and the exhaust emission from the donor cylinder group in both the donor cylinder group and the non-donor cylinder group.

Abstract translation: 一种控制发动机的方法包括将第一燃料和第二燃料喷射到发动机的供体气缸组和非给体气缸组中的每一个。 该方法还包括将第一燃料的较高部分注入到供体气缸组中，与将第一燃料注入非给体气缸组相比较。 此外，该方法包括将第二燃料的较低部分注入到供体气缸组中，与将第二燃料注入非给体气缸组相比较。 此外，该方法包括将来自供体气缸组的废气排放物再循环到非供体气缸组和供体气缸组，并且将来自供体气缸组的空气，第一燃料，第二燃料和排气的混合物燃烧 供体圆柱体组和非给体圆柱体组。