Combi-Filter system (Active Regeneration)

Designed to remove soot and particulate matter from diesel engine exhaust. The exhaust gas is passed through a ceramic substrate which traps the particulates, the captured matter is then actively burned off to clean or regenerate the filter via an externally mounted regenerating station.

The Combi filter system will typically remove 90%+ of the PM from the exhaust gas, and can be combined with the AZ series catalyst for maximum exhaust cleaning, which will meet the most stringent applications/regulation (reductions of PM by 96%, CO by 99% and JC by 96% can be achieved).

The filtered particles are stored in the filter until it is plugged into a regenerating station - typically on a daily basis or overnight. Two model types are available, ‘K’ series which requires an 8 hour regeneration cycle or ‘S’ series with fast regeneration - 45 minutes.

The Combifilter system is ideally suited for use on equipment which is operated indoors, or, in confined spaces such as fork lift trucks, where the benefits of diesel are required but with the cleanliness of gas, or for equipment which is not operating with high duty cycles - such as on construction sites or generating equipment.

Combifilter can be operated with all types of diesel fuels, and has been tested and approved by the Energy Savings Trust and Swiss VERT

Combifilter Arangement

Standard System
The standard system consists of:
A Combifilter which is mounted in the exhaust system in place of the original silencer.
An indicator lamp, which is mounted in the driver’s cab and warns of high back pressure.
A wall mounted regeneration unit with an air pump and electronics for monitoring regeneration. The regeneration unit is installed at the vehicle’s parking place.
Cables and hoses for electrical and air supply connections.
A starter disabler to prevent the vehicle from starting during regeneration.

Exchange System
If the vehicle is operating multiple shifts, or it is difficult to fit in the time needed to regenerate the filter on a regular basis, an exchange system with two filters can be used. A clean filter simply replaces the dirty filter, the dirty filter is then regenerated on an off-board regeneration station.

Options
AZ diesel oxidation catalyst for the reduction of gaseous pollutants. The catalyst can either be built into the filter or mounted separately upstream of the filter.
A manometer which continuously monitors the back pressure
Choice of inlet and outlet sections to meet installation requirements.

Efficiency
The Combifilter effectively removes particulate (soot) from diesel exhaust and is also a silencer.
Typical reductions are as follows:
Particulate (soot), PM 96%
Silencing > 15 dB
If the Combifilter is optionally supplied with an AZ-catalyst, gaseous pollutants are typically removed as follows*:

Carbon monoxide (CO) 99%
Hydrocarbons (HC) 96%
*Tested according to ISO 8178