PURitech Gmbh products

This filter system developed byPURItechfor on-road applications, features a unique technology, which works with a self-cleaning regeneration during operation. The passive self-cleaning filter system is the ideal filter for vehicles that operate in medium and full load duty cycle. Trucks in long distance traffic are getting retrofitted with the DPFN system.

This DPFN+ system by PURItech contains of an additional pre-filter. Because of that the system regenerates (self-regenerating) even at low temperatures. The DPFN+ is applicable mainly at city transportation applications. The DPFN+ system is a typical filter for metro busses and distribution vehicles.

This DPFN++ system is an active filter system with pre-filter and diesel fuel injection. The automatic controlled diesel fuel injection into the exhaust gas system achieves the regeneration of the filter. This system is designed for application with low load. Trash trucks are typically retrofitted with the DPFN++ system.

The PURImobil system from PURItech employs a wall-flow honeycomb substrate with a catalytically active coating. Upstream of the filter a coated pre-filter is installed. The system nearly eliminates diesel particles and reduces NOx emissions simultaneously. It entitles your EURO 2 or 3 vehicles to upgrade to Euro 4 (PM only) and hence enter any European Low Emission Zone.Due to the unique and patented coating technology, accumulated soot is automatically combusted during the normal driving cycle. There is no need for costly fuel additives or heating systems.The exhaust abatement system is low in maintenance. A camper vehicle with an average mileage of 5000 miles per year will need to get the filter serviced after 5 to 10 years only.A simple indicator LED on the dashboard informs the driver about the conditions of the filter system.

This system, developed by PURItech, combines an active regeneration (external fuel injection) and a passive regeneration (catalyzed filter or fuel born additive). The filter regeneration is automatically controlled during operation. DAS-DBS Type A and B are designed for application with low load.

The filter self-cleaning is achieved by a catalytic coated filter surface. The DPF2 system is equipped with an additional pre-filter. That’s why even at low temperatures a self-cleaning regeneration is secured. The DPF1/DPF2 system is designed for construction machines, tractors and stationary engines.

This affordable system utilizes permanent and passive filter regeneration with fuel born additive. The installation works as a replacement for all common machines.

PURItech has an effective emission control solution for virtually every diesel engine. For the most demanding situations, PURItech has developed the PURImax system. PURImax reduces emissions of gaseous pollutants (CO: -96%, HC -92%, NOx; -30%) purely by using a catalytic coating without the addition of a reducing agent or substance. Particulate filtration of >99% is delivered by a ceramic wall-flow filter.

The DAS-DBS system is a combined regeneration filter system, comprising an active regeneration component (external fuel injection) and a passive component (catalytic filter coating or fuel borne catalyst). The filter system is designed for vehicles and machines operating often on a severe duty cycle (low exhaust gas temp.). It is intended for applications, where purely passive regeneration would not work. The filter regeneration with the DAS-DBS system is electronically controlled (backpressure) and occurs automatically during normal vehicle operation.