公开(公告)号：US10526986B2

公开(公告)日：2020-01-07

申请号：US15991231

申请日：2018-05-29

Applicant: Progress Rail Locomotive Inc.

Inventor： Reddy P. S. Sankara ,  Steven D. Johnson ,  Liangtao Zhu ,  Michael B. Goetzke

IPC: F02D41/00 ,  F02D41/14 ,  F02M26/47 ,  F02D41/26

Abstract: According to one aspect of the present disclosure, a method of controlling an exhaust gas recirculation (EGR) system of an engine system includes determining a first EGR command according to a first method during a steady state engine condition, determining a second EGR command according to a second method during a transient engine condition, wherein the first method is based at least in part on values from a NOx sensor, and the second method is not based on values from a NOx sensor. The method further includes adjusting an EGR valve of the EGR system based on the first EGR command during the steady state engine condition, and adjusting the EGR valve based on the second EGR command during the transient engine condition.

公开(公告)号：US20190331066A1

公开(公告)日：2019-10-31

申请号：US15967134

申请日：2018-04-30

Applicant: Progress Rail Locomotive Inc.

Inventor： Sudarshan Kedarnath Loya ,  Steven D. Johnson ,  Vijaya Kumar ,  Laura Elise Rasmussen ,  Adarsh Gopinathan Nair ,  Michael B. Goetzke

IPC: F02M26/29

Abstract: An EGR cooler may include an EGR cooler housing having top, bottom and side walls, inlet and outlet end walls disposed at opposite ends, and a longitudinal axis extending in a direction of exhaust gas flow from the inlet end to the outlet end. A plurality of cooling tubes extend through the EGR cooler between the top and bottom walls, and are arranged in a cooling tube array to form an exhaust gas receiving area at an upstream side of the cooling tube array proximate the inlet end wall so that exhaust gas flowing into the EGR cooler through an exhaust gas inlet opening will flow into the exhaust gas receiving area and then disperse through the cooling tube array. A pitch distance between the cooling tubes may be greater proximate the longitudinal axis than proximate the side walls to promote flow through, instead of around, the cooling tube array.

公开(公告)号：US10746138B2

公开(公告)日：2020-08-18

申请号：US15967134

申请日：2018-04-30

Applicant: Progress Rail Locomotive Inc.

Inventor： Sudarshan Kedarnath Loya ,  Steven D. Johnson ,  Vijaya Kumar ,  Laura Elise Rasmussen ,  Adarsh Gopinathan Nair ,  Michael B. Goetzke

IPC: F01N3/04 ,  F02M26/29 ,  F01N3/02 ,  F28D21/00 ,  F28D7/16

Abstract: An EGR cooler may include an EGR cooler housing having top, bottom and side walls, inlet and outlet end walls disposed at opposite ends, and a longitudinal axis extending in a direction of exhaust gas flow from the inlet end to the outlet end. A plurality of cooling tubes extend through the EGR cooler between the top and bottom walls, and are arranged in a cooling tube array to form an exhaust gas receiving area at an upstream side of the cooling tube array proximate the inlet end wall so that exhaust gas flowing into the EGR cooler through an exhaust gas inlet opening will flow into the exhaust gas receiving area and then disperse through the cooling tube array. A pitch distance between the cooling tubes may be greater proximate the longitudinal axis than proximate the side walls to promote flow through, instead of around, the cooling tube array.

公开(公告)号：US10082114B2

公开(公告)日：2018-09-25

申请号：US15042535

申请日：2016-02-12

Applicant: Progress Rail Locomotive Inc.

Inventor： Keith E. Moravec ,  Sudarshan K. Loya ,  Michael B. Goetzke ,  Reddy Pocha Siva Sankara ,  Steven D. Johnson

IPC: F02M26/35 ,  F02D41/00 ,  F02M26/15 ,  F02M26/22 ,  F02M26/00

CPC classification number: F02M26/35 ,  F02D41/0065 ,  F02M26/15 ,  F02M26/22 ,  F02M2026/001 ,  Y02T10/47

Abstract: An Exhaust Gas Recirculation (EGR) system for an engine system is provided. The EGR system includes an exhaust gas treatment module positioned upstream of an EGR cooler with respect to an exhaust gas flow direction. The exhaust gas treatment module is in selective fluid communication with an exhaust gas line of an engine. The EGR system also includes a bypass line in selective fluid communication with the exhaust gas line of the engine. The EGR system further includes a valve arrangement configured to route an exhaust gas flow through at least one of the exhaust gas treatment module and the bypass line.