Basics

This page aims to cover OSE Efforts on developing an Open Source Reactivity Controlled Compression Ignition Internal Combustion Engine
If done in a smart manner, these engines can ALSO run in a Spark Ignition and/or Compression Ignition mode this being VERY Fuel-Agnostic

Existing Work

They did a project titled “Methanol/DI-Methylether (DME) Duel Fuel RCCI Combustion Engine”
- A Video by the YouTube Channel “IFCPAR / CEFIPRA” Titled “ Methanol/DI-Methylether (DME) Duel Fuel RCCI Combustion Engine” ( ’’’~33 Minute Watch’’’ )
It was essentially an OTS Diesel Engine Modified With:
- Electric Turbochargers for Engine-Independt Varying of EGR
- An Off The Shelf Methanol Fuel Injection System
- A Semi-Custom DME Fuel Injection System
  - To Remedy the Fuel Lubricity issue, a “bubbler” filled with Rapeseed Oil Methyl Ester (aka Canola Oil Biodiesel ) was used in between the DME supply, and the final Fuel Rail / Injector side
- Sealing issues were mentioned (an Off The Shelf Pump used for the DME in particular had to be rebuilt supposedly), PTFE was used and remedied this issue
Liquid Phase LPG Fuel Injection was used rather than gas phase so care was taken to prevent/deal with Vapor Lock as well

How many Hours the engine has run for (especially in the proper RCCI mode)
Was there any aspect of Lubricating Oil Dilution happening with the Methanol and/or DME?
Had any tests with Ethanol (or the less likely, but more ideal from an “end user” standpoint Butanol ) been done instead of Methanol
(If it isn’t completed before making contact) are they willing to provide more information/internal materials

RCCI
HCCI / SCCI (Strategies for getting the novel Low Temperature Combustion of RCCI ’’WITHOUT’’ the added complexity of handling two separate categories of fuels.)