초록 ▼

A sensor for the monitoring of an NOxcatalyst having a storage material for the adsorption of NOx,the storage material forming the sensitive element of the sensor. As a result, it is possible to measure the instantaneous degree of charging of the storage material, and a quasi-linear control for the

A sensor for the monitoring of an NOxcatalyst having a storage material for the adsorption of NOx,the storage material forming the sensitive element of the sensor. As a result, it is possible to measure the instantaneous degree of charging of the storage material, and a quasi-linear control for the storage of NOxis made possible. The ability to precisely monitor the degree of charging of the storage material makes it possible to better utilize the storage capacity, and the catalyst can be dimensioned in a more cost-effective manner. The conversion phase of the rich side can be predicted more precisely and consequently be integrated more favorably into the driving cycle. The sensor for the monitoring of an NOxcatalyst is especially suitable for installation in the exhaust path of an internal combustion engine with direct gasoline injection or of a diesel engine.

대표청구항 ▼

A sensor for the monitoring of an NOxcatalyst having a storage material for the adsorption of NOx,the storage material forming the sensitive element of the sensor. As a result, it is possible to measure the instantaneous degree of charging of the storage material, and a quasi-linear control for the

A sensor for the monitoring of an NOxcatalyst having a storage material for the adsorption of NOx,the storage material forming the sensitive element of the sensor. As a result, it is possible to measure the instantaneous degree of charging of the storage material, and a quasi-linear control for the storage of NOxis made possible. The ability to precisely monitor the degree of charging of the storage material makes it possible to better utilize the storage capacity, and the catalyst can be dimensioned in a more cost-effective manner. The conversion phase of the rich side can be predicted more precisely and consequently be integrated more favorably into the driving cycle. The sensor for the monitoring of an NOxcatalyst is especially suitable for installation in the exhaust path of an internal combustion engine with direct gasoline injection or of a diesel engine. im 9, wherein the filling step fills the discharge vessel with the metal halide dose to at least 24 mg/cc. 15. The method as defined in claim 14, wherein the filling step fills the discharge vessel with Hg to at least 24 mg/cc. 16. A method for obtaining short-term color stability in an HID lamp, comprising the steps of: providing a high intensity discharge lamp with a discharge vessel and electrodes; and filling the discharge vessel with a metal halide dose per unit volume to at least 20 mg/cc, where the volume is defined as the volume of the main cylindrical section of the discharge vessel, and wherein the HID lamp discharge vessel has an inner length/inner diameter ratio equal to or greater than 4.75.