| DEUTZ Aktiengesellschaft Patent applications |
| Patent application number | Title | Published |
|---|
| 20110283679 | PARTICULATE FILTER SYSTEM HAVING A VARIABLE DEGREE OF SEPARATION - A method for the operation of a particulate filter system for an internal combustion engine wherein an. An exhaust gas stream enters a housing via a gas inlet opening. The housing receives a particulate filter, the stream flows into crude gas ducts connected to the gas inlet opening, and the stream can flow out of the particulate filter via clean gas ducts that are in fluid connection with a gas outlet opening, and are separated from the crude gas ducts. The crude gas ducts are connected to a connecting space in the direction of flow, and the connecting space has an exhaust port controlled by a closing mechanism. According to the invention, a method for operating an open particulate filter system is provided, by which the degree of separation of the soot particles from the exhaust gas can be increased. This is achieved in that a partial exhaust gas stream of the exhaust gas stream can be discharged via the exhaust port into the environment, just as the primary exhaust gas flow can be discharged into the environment via the gas outlet opening, according at least to a particulate load thereof. | 11-24-2011 |
| 20110182789 | EXHAUST GAS AFTERTREATMENT SYSTEM - An exhaust gas post treatment system for, in particular, a self-igniting internal combustion engine including a catalytic converter that is arranged in an exhaust gas line, a fine particle filter and an introduction device for a reduction agent arranged upstream of the catalytic converter in the direction of the flow of the exhaust gas, and to a method for operating said type of exhaust gas post treatment system. An exhaust gas post treatment system and a method for operating said type of system that is simple to use and compact. This is achieved by virtue of the fact that the catalytic converter is a reductively or oxidatively operated catalytic converter, or that the introduction device, the catalytic converter, that can be operated reductively or oxidatively, and the fine particle filter are arranged in said sequence and in the exhaust line in the direction of flow. | 07-28-2011 |
| 20110168142 | TWO-STAGE COOLED EXHAUST GAS RECIRCULATION SYSTEM - A device for cooled recirculation of exhaust gas of an internal combustion engine charged with the aid of an exhaust gas turbocharger, the internal combustion engine having a fresh gas system and an exhaust gas system, which are connected to a two-stage exhaust gas cooler via an exhaust gas recirculation line. A device by way of which a sufficient amount of exhaust gas may be recirculated by simple means is provided. This is achieved in that exhaust gas recirculation line | 07-14-2011 |
| 20110011065 | HIGH-EFFICIENCY SCR CATALYTIC CONVERTER - A method and a device for selectively purifying the exhaust gas of an internal combustion engine using a selective catalytic reduction (SCR) catalytic converter ( | 01-20-2011 |
| 20100210409 | HYBRID DRIVE TRAIN - A hybrid powertrain of a motor vehicle, especially of a mobile machine having an internal combustion engine and an electric motor, the powertrain also having a hydraulic machine. | 08-19-2010 |
| 20090139501 | Exhaust-Gas Recirculation in an Air-Cooled Internal Combustion Engine - An internal combustion engine includes a crankcase and a cylinder head which covers a cylinder of the crankcase and in which a fresh-gas channel and an exhaust-gas channel are made which open on a cylinder-head longitudinal side and are connected to in each case a fresh-gas line and an exhaust-gas collection line, and wherein there is an exhaust-gas recirculation system, including an exhaust-gas recirculation line and a control valve. An internal combustion engine having an exhaust-gas recirculation system is provided, in which the exhaust-gas recirculation system remains uninfluenced by the exhaust-gas collection line which is hot during operation. This is achieved in that the exhaust-gas recirculation system is arranged on that cylinder-head side which lies opposite the fresh-gas line and the exhaust-gas collection line. This arrangement away from the exhaust-gas collection line which is substantially hotter than other components during operation has the consequence of a direct reduction of the temperature of the recirculated exhaust-gas amount, without further special cooling measures being provided. | 06-04-2009 |
