公开(公告)号：US20150377108A1

公开(公告)日：2015-12-31

申请号：US14845352

申请日：2015-09-04

Applicant: Caterpillar Inc.

Inventor： Scott B. Fiveland ,  Douglas A. Rebinsky ,  Matthew T. Wolk

IPC: F01N3/26 ,  F02M43/00 ,  F02M25/07 ,  F02B37/20

CPC classification number: F01N3/26 ,  F01N3/10 ,  F01N5/04 ,  F01N2240/14 ,  F01N2570/12 ,  F02B37/00 ,  F02B41/10 ,  F02D19/0647 ,  F02M43/00 ,  Y02T10/144 ,  Y02T10/16 ,  Y02T10/163 ,  Y02T10/36

Abstract: A dual fuel engine system is provided. The dual fuel engine system includes a dual fuel engine. The dual fuel engine system also includes a turbocharger connected to the dual fuel engine having a turbine portion and a compressor portion. The dual fuel engine system further includes a methane reduction module positioned downstream of the turbocharger. The methane reduction module is configured to receive a flow of exhaust gas from the turbine portion of the turbocharger. The methane reduction module includes a combustor. The methane reduction module is adapted to increase a temperature of the exhaust gas flow received from the turbine portion of the turbocharger. The methane reduction module is also adapted to combust methane constituents present in the exhaust gas based on the increase in the temperature.

Abstract translation: 提供了双燃料发动机系统。 双燃料发动机系统包括双燃料发动机。 双燃料发动机系统还包括连接到具有涡轮部分和压缩机部分的双燃料发动机的涡轮增压器。 双燃料发动机系统还包括位于涡轮增压器下游的甲烷还原模块。 甲烷还原模块被配置为从涡轮增压器的涡轮机部分接收废气流。 甲烷还原模块包括燃烧器。 甲烷还原模块适于增加从涡轮增压器的涡轮部分接收的废气流的温度。 甲烷还原模块还适于基于温度的升高燃烧存在于废气中的甲烷成分。