AECC comments concerning the proposed definition of “retrofit” and clarification of engine family definition parameters.

E-mail presenting AECC concerns with the proposed definition of “retrofit” and clarification of engine family definition parameters.

Initial working draft for a regulation to provide a framework for approvals of engine conversions (such as in retrofitting an engine for dual-fuel use).

Presentation on defining the terms “retrofit” and “conversion” in the context of equipping heavy duty vehicles with dual-fuel systems.

Draft new Regulation on uniform provisions concerning the approval of specific LPG (liquefied petroleum gases) or NG (compressed natural gas/bio-methane/liquefied natural gas) dual fuel retrofit systems and dual fuel retrofitted engines to be installed in heavy duty applications

Overview and update on the proposed new regulation on retrofit dual-fuel systems for heavy-duty vehicles.

Initial draft version of the new Regulation on “uniform provisions concerning the approval of specific LPG (liquefied petroleum gases) or NG (compressed natural gas/bio-methane/liquefied natural gas) dual fuel retrofit systems and dual fuel retrofitted engines to be installed in heavy duty applications”.

Draft new Regulation on uniform provisions concerning the approval of specific LPG (liquefied petroleum gases) or NG (compressed natural gas/bio-methane/liquefied natural gas) dual fuel retrofit systems to be installed in heavy duty vehicles, agricultural and forestry tractors and non road mobile machinery equipped with Compression Ignition engines

Presentation on the aims of the proposal, to be considered at the June 2013 GRPE session, for a new UN Regulation concerning LPG (liquefied petroleum gases) or NG (compressed natural gas/bio‐methane/liquefied natural gas) dual fuel retrofit systems to be installed in heavy duty diesel applications.

GFV Chairman: Dual-fuel retrofit certification concept

Some corrections to Annex 4B were introduced when that Annex was merged into the new Annex 4 in Revision 6 of UN R49. These corrections were not carried over into Annex 4B as it stands in Revision 5; however, some of these are necessary for dual-fuel engines and vehicles. The chair of the GFV Heavy-duty Dual Fuel Task Force has prepared this document to correct the oversight.

Text as prepared by the informal HDDF Task Force within the GFV informal working group in order to enable the type approval of new EURO V heavy duty dual-fuel engines and vehicles

Presentation arguing for a “basic rule” to ensure a consistent framework for engine retrofit regulations.