Johnson Matthey’s range of systems for construction
equipment and other non-road machines ensures that
there is a system suitable for every application.
| Type |
Regeneration technique |
Used when |
| DPF-CRT® |
Johnson Matthey’s CRT®
technology |
Ultra low sulphur diesel is available and duty
cycle is suitable |
| DPFiS
|
A fuel additive is metered into the diesel fuel.
It acts a catalyst, helping the soot to burn in
the exhaust stream |
ULSD is not available but machine duty cycle
gives high exhaust temperature |
| DPFi |
An electrical heater in the system raises the
temperature to burn away the collected soot at
standstill |
Exhaust temperatures are too low for CRT®
system with ULSD or DPFiS with higher sulphur
fuel |
| DPFc
|
The filter element is removed from the machine
and placed on a heated regeneration station to
burn away the soot |
As for DPFi but can offer advantages when running
several small machines. |
