| Patent application number | Description | Published |
|---|
| 20090078121 | Air supply vent filter for air conditioning systems - A filter for placement above a supply vent grill in an air conditioning supply vent includes a peripheral frame that is sized and configured to match the interior dimensions of the air vent. The filter has at least one layer of a woven stainless steel hygienic mesh cloth that is held taut within the frame. The hygienic stainless steel mesh membrane traps dirt, dust, dust mites, germs, bacteria, mold, fungus and other particles and microbes that are carried in the airflow of the air conditioning duct system. Accordingly, the cool air exiting the supply vents and into the indoor living environment is free of these unhealthy and potentially harmful microbes and airborne particles. | 03-26-2009 |
| 20120060695 | AIR SUPPLY VENT FILTER FOR AIR CONDITIONING SYSTEMS - A high-velocity-air filter apparatus for filtering air passing through air supply vents in air conditioning systems includes a metal wire grid support, a nylon mesh air filter that rests on top of the metal wire grid support, and a metal peripheral frame attached to and surrounding the peripheral edges of both of the metal wire grid support and the nylon mesh air filter. The high-velocity-air filter apparatus is washable, reusable, antibacterial and mildew-proof. The high-velocity-air filter apparatus minimizes the resistance to air-flow, allowing up to 125% of the nominal air flow rate through the air supply vent. The high-velocity-air filter apparatus is extremely thin, less than 0.1875 inches, to allow for maximum adaptability to air supply vents and to minimize air resistance. | 03-15-2012 |
| Patent application number | Description | Published |
|---|
| 20100012103 | SYSTEM AND METHOD FOR STORING CRANKCASE GASES TO IMPROVE ENGINE AIR-FUEL CONTROL - A system and method for improving processing of gases contained within the crankcase of an internal combustion engine is presented. The system is especially suited for single boiling point fuels because it allows the storage of such fuels until the fuel can be opportunistically combusted. | 01-21-2010 |
| 20110072783 | SYSTEM AND METHOD FOR REGENERATING A PARTICULATE FILTER ACCOMPANIED BY A CATALYST - A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst. | 03-31-2011 |
| 20110072784 | SYSTEM AND METHOD FOR REGENERATING A PARTICULATE FILTER - A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst. | 03-31-2011 |
| 20110072787 | FUEL CONTROL FOR SPARK IGNITED ENGINE HAVING A PARTICULATE FILTER SYSTEM - A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst. | 03-31-2011 |
| 20110072792 | PARTICULATE FILTER REGENERATION DURING ENGINE SHUTDOWN - Various systems and method are described for controlling an engine having an exhaust system which includes a particulate filter. One example method comprises, after shutting down the engine and spinning down the engine to rest, operating a vacuum pump to draw fresh air through the exhaust system to an intake system, and regenerating at least a portion of the particulate filter during the engine rest. | 03-31-2011 |
| 20110073088 | METHOD FOR CONTROLLING FUEL OF A SPARK IGNITED ENGINE WHILE REGENERATING A PARTICULATE FILTER - A system for filtering and oxidizing particulate matter produced by a gasoline direct injection engine is disclosed. In one embodiment, engine cylinder air-fuel is adjusted to allow soot to oxidize at an upstream particulate filter while exhaust gases are efficiently processed in a downstream catalyst. | 03-31-2011 |
| 20110083425 | INTEGRATED FUEL CATALYST MONITOR - A method is provided for monitoring an emission device coupled to an engine. In one example approach, the method comprises: following a deceleration fuel shut-off duration, indicating degradation of the emission device based on an amount of rich products required to cause a sensor to become richer than a threshold. The amount of rich products required may be correlated to an amount of oxygen stored in the emission device. The indication of emission device degradation may be further based on air mass and temperature during delivery of the required rich products. | 04-14-2011 |
| 20110131957 | Methods and Systems for Emission System Control - Methods and systems are provided for operating a turbocharged engine including a particulate filter positioned upstream of a turbocharger turbine, a catalyst positioned downstream of the turbine, and an EGR passage coupled between an engine exhaust and engine intake. In one example, the method comprises, diverting exhaust gas from downstream of the filter to the engine intake via the EGR passage, and adjusting an amount of diverted exhaust gas based on filter operating conditions. | 06-09-2011 |
| 20110146267 | Methods and Systems for Emission System Control - Methods and systems are provided for operating an engine including an emission control system, the emission control system comprising a catalyst downstream of a turbine of a boosting device and a reductant injector upstream of the turbine. In one example, the method comprises injecting reductant into exhaust upstream of the turbine, mixing the injected reductant with exhaust gas via the turbine, and delivering the mixed reductant to the catalyst. | 06-23-2011 |
| 20110146268 | Methods and Systems for Emission System Control - Methods and systems are provided for controlling an engine in a vehicle, the engine having a turbocharger, and a particulate filter upstream of a turbocharger turbine. In one example, the method comprises, under selected boosted operating conditions, injecting a reductant upstream of the filter during an exhaust stroke to generate an exothermic reaction at the filter. | 06-23-2011 |
| 20110146269 | Methods and Systems for Emission System Control - Methods and systems are provided for operating an engine including an SCR catalyst downstream of an exhaust turbine and a particulate filter upstream of the turbine. In one example, the method comprises, adjusting a turbine wastegate to adjust a catalyst temperature to a desired catalyst temperature. | 06-23-2011 |
| 20120117963 | Methods and Systems for Emission System Control - Methods and systems are provided for operating a turbocharged engine including a particulate filter positioned upstream of a turbocharger turbine, a catalyst positioned downstream of the turbine, and an EGR passage coupled between an engine exhaust and engine intake. In one example, the method comprises, diverting exhaust gas from downstream of the filter to the engine intake via the EGR passage, and adjusting an amount of diverted exhaust gas based on filter operating conditions. | 05-17-2012 |
