Patent application number | Description | Published |
20110154807 | NOx TRAP - A NOx trap comprises components comprising at least one platinum group metal, at least one NOx storage material and bulk ceria or a bulk cerium-containing mixed oxide deposited uniformly in a first layer on a honeycombed substrate monolith, the components in the first layer having a first, upstream, zone having increased activity relative to a second, downstream zone for oxidising hydrocarbons and carbon monoxide, and a second, downstream, zone having increased activity to generate heat during a desulphation event, relative to the first zone, wherein the second zone comprises a dispersion of rare earth oxide, wherein the rare earth oxide loading in the second zone is greater than the loading in the first zone. An exhaust system for a lean burn internal combustion engine, a vehicle comprising a lean burn internal combustion engine and the exhaust system and methods of making the NOx trap are also disclosed. | 06-30-2011 |
20110179777 | EXHAUST SYSTEM FOR A LEAN BURN IC ENGINE - An exhaust system( | 07-28-2011 |
20120110988 | NOx ABSORBER CATALYSTS | 05-10-2012 |
20120324867 | CONTROL OF EMISSIONS - A diesel engine aftertreatment system comprises a diesel engine having an exhaust manifold and a filter substrate in direct connection with the exhaust manifold without any intervening catalyst, wherein the filter substrate comprises on its inlet side an SCR catalyst incorporating a non-coking molecular sieve. | 12-27-2012 |
20130149220 | CATALYZED SUBSTRATE AND EXHAUST SYSTEM FOR INTERNAL COMBUSTION ENGINE - An exhaust system, and a catalyzed substrate for use in an exhaust system, is disclosed. The exhaust system comprises a lean NO trap and the catalyzed substrate. The catalyzed substrate has a first zone, having a platinum group metal loaded on a support, and a second zone, having copper or iron loaded on a zeolite. The first zone or second zone additionally comprises a base metal oxide or a base metal loaded on an inorganic oxide. Also provided are methods for treating an exhaust gas from an internal combustion engine using the exhaust system. The exhaust system is capable of storing NH | 06-13-2013 |
20130336865 | NOx ABSORBER CATALYST | 12-19-2013 |
20130340414 | OXIDATION CATALYST FOR A LEAN BURN INTERNAL COMBUSTION ENGINE - An apparatus is disclosed. The apparatus comprises a lean-burn internal combustion engine, engine management means and an exhaust system for treating exhaust gas of the engine. The exhaust system comprises a first oxidation catalyst disposed on a first honeycomb monolith substrate. The first oxidation catalyst comprises platinum supported on a first metal oxide support comprising at least one reducible oxide, and is substantially free of alkali metals and alkaline earth metals. The engine management means is arranged, when in use, intermittently to modulate the lambda composition of the exhaust gas entering the first oxidation catalyst to a rich lambda composition. | 12-26-2013 |
20140044630 | CATALYZED SUBSTRATE AND EXHAUST SYSTEM FOR INTERNAL COMBUSTION ENGINE - An exhaust system for internal combustion engines, and a catalyzed substrate for use in an exhaust system, is disclosed. The exhaust system comprises a lean NO | 02-13-2014 |
20140241950 | Exhaust System for a Lean Burn IC Engine - An exhaust system ( | 08-28-2014 |