公开(公告)号：US20190024585A1

公开(公告)日：2019-01-24

申请号：US15653691

申请日：2017-07-19

Applicant: Progress Rail Locomotive Inc.

Inventor： Reddy Pocha Siva Sankara ,  Sudarshan Loya ,  Keith Moravec ,  Michael B. Goetzke

IPC: F02C6/12 ,  F02B37/00 ,  F02B37/16 ,  F02B37/18

CPC classification number: F02C6/12 ,  F02B37/004 ,  F02B37/166 ,  F02B37/186 ,  F02M26/05 ,  F02M26/08 ,  F02M26/10

Abstract: An energy recovery system for an engine system is disclosed. The engine system includes an engine, an exhaust conduit configured to receive exhaust gases discharged from the engine, and a first turbocharger coupled to the exhaust conduit to receive exhaust gases from the engine and provides compressed air to the engine. The energy recovery system includes a bypass conduit, a second turbocharger, and an accumulator. The bypass conduit is coupled to the exhaust conduit upstream of the first turbocharger, and facilitates a portion of exhaust gases from the exhaust conduit to bypass the first turbocharger. The second turbocharger is coupled to the bypass conduit, and is driven by the portion of exhaust gases bypassing the first turbocharger to compress air received from an ambient to a first pressure. The accumulator is in fluid communication with the second turbocharger, and stores air received from the second turbocharger at the first pressure.

公开(公告)号：US10508595B2

公开(公告)日：2019-12-17

申请号：US15653691

申请日：2017-07-19

Applicant: Progress Rail Locomotive Inc.

Inventor： Reddy Pocha Siva Sankara ,  Sudarshan Loya ,  Keith Moravec ,  Michael B. Goetzke

IPC: F02C6/12 ,  F02B37/00 ,  F02B37/16 ,  F02B37/18 ,  F02M26/05 ,  F02M26/08 ,  F02M26/10

Abstract: An energy recovery system for an engine system is disclosed. The engine system includes an engine, an exhaust conduit configured to receive exhaust gases discharged from the engine, and a first turbocharger coupled to the exhaust conduit to receive exhaust gases from the engine and provides compressed air to the engine. The energy recovery system includes a bypass conduit, a second turbocharger, and an accumulator. The bypass conduit is coupled to the exhaust conduit upstream of the first turbocharger, and facilitates a portion of exhaust gases from the exhaust conduit to bypass the first turbocharger. The second turbocharger is coupled to the bypass conduit, and is driven by the portion of exhaust gases bypassing the first turbocharger to compress air received from an ambient to a first pressure. The accumulator is in fluid communication with the second turbocharger, and stores air received from the second turbocharger at the first pressure.

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.