Diesel Particle Filter with Diesel Stand-still Combustion Chamber.

You can turn the combustion chamber with your mouse.


Operating Principle and Technology

Image 1: „Wall flow“ Principle

The structure of the filter core is based on a silicon carbide honeycomb and operates according to the so-called „Wall flow Principle“ (Image1). The exhausts flow through the inlet ducts which are closed on the outlet parts. The deposition of the soot particles takes part on the thus forced flow on behalf of the porous channel walls.


Image 2: SiC-Filter Structure

As far as the silicon carbide filter (SiC) is concerned, the individual honeycombs are being connected by joints made of special cement (Image 2).  Thus the inherent stresses due to combustion of the soot and the thermal expansion of the filter module can be fully compensated.

As far as the Physitec SiC-B Diesel Particle filter (without catalytic coating) the combustion of the soot is being guaranteed by beans of mere active combustion chamber supported regeneration (Image 3). The engine can be operated by standard diesel fuel without any restrictions with respect to its sulfur content.  

Regeneration of the accumulated particles takes place by means of combustion on behalf of a PHYSITRON-Diesel combustion chamber. To combust the soot the diesel fuel from the main tank of the vehicle can be used. Regeneration takes place every approximately 16 operating hours (depending on the engine-out emissions) upon stand-still of the engine. The regeneration duration depends on the size of the filter and takes approximately 30 to 60 minutes.


Image 3: Schematic display – Diesel particle filter SiC-CB with combustion chamber supported regeneration


  • Fully independent from the exhaust temperature
  • Controllable combustion performance between 3 and 25 kW
  • Regardless of its location
  • No connection to the public electricity network necessary
  • Fast, secure and gentle regeneration of the filter due to adaptable combustion chamber performance
  • Safe cold-start even upon low temperatures
  • Very high mechanical and thermal characteristics



  • As stand-still combustion chamber (regeneration upon switched-off engine)
  • With respect to mobile machines and devices which neither have to pay attention to exhaust temperatures nor conditions of usage such as e.g.: fork-lifts, wheel bearings, telescopic handlers, rollers, municipal vehicles etc.
  • Appropriate for retrofitting of NRMM machines (Non-road mobile machinery).



  • VERT certified and accredited
  • Requirements according to TRGS 554 fulfilled for Germany
  • Positive evaluation by TÜH with respect to fulfillment of the requirements according to §19 Section 2 StVZO (Road Traffic Regulations) and § 30 Section 1 Item 1 StVZO
  • No loss of operating license upon subsequent installation of the combustion chamber
  • No increase of NO2
  • Decrease of particle emissions ≥ 99%
  • Reduction of puffs of smoke ≥ 98%