NATURAL GAS ENGINE AFTERTREATMENT SYSTEM

Systems and methods for reducing methane in an aftertreatment system of a vehicle are described. An oxidation catalyst is disposed in an exhaust path between an engine block and a turbocharger. The oxidation catalyst stores methane in the exhaust gas from the engine block during low temperatures and...

Full description

Saved in:
Bibliographic Details
Main Author MAHAKUL BUDHADEB
Format Patent
LanguageEnglish
Published 19.03.2015
Subjects
BLASTING
ENGINE PLANTS IN GENERAL
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
STEAM ENGINES
TRANSPORTING
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:Systems and methods for reducing methane in an aftertreatment system of a vehicle are described. An oxidation catalyst is disposed in an exhaust path between an engine block and a turbocharger. The oxidation catalyst stores methane in the exhaust gas from the engine block during low temperatures and oxidizes the stored methane during high temperatures. The temperatures at the oxidation catalyst are controlled, in part, by operating engine cycles and/or a back pressure valve that can adjust pressure in the exhaust path and/or increase engine load.
Bibliography:Application Number: US201314027364