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  1. jgattoni

    Aluminum block, cast in iron cylinder liners - Claimed issues

    Hello, I am having a Mazda 2.3 liter blocks Iron cylinder liners Chromium Nikasil PVD Coated for a specific application where the engine will be subjected to corrosive (sulfuric acid) mixed gaseous fuels. They have responded and said that there is an aluminum lip (part of the aluminum block) at...
  2. jgattoni

    Miller timing vs F timing

    More details on what F-Timing is......This post lacks necessary info if you want an "Intelligent.....Professional" discussion.
  3. jgattoni

    Spark Ignited Heavy Fuel Direct Injection

    These are gas engines, both 2 and 4 stroke, piston and rotary. And yes it is well understood the cylinder head would need to be replaced to integrate direct injection. This is not an immediate concern. Obviously this is not economoically feasible, I am just proving the technical feasibility. Its...
  4. jgattoni

    Spark Ignited Heavy Fuel Direct Injection

    This is not a matter of trying to do something different. This is a contract requirement for conversion of spark ignited gas engines to spark ignited heavy fuel as the military would like to use only heavy fuels (JP5, JP8, etc) rather then having to suppliment multiple fuels. The droplet size of...
  5. jgattoni

    Spark Ignited Heavy Fuel Direct Injection

    This is more of a means of starting a discussion to address any and all aspects to take into consideration. Keep in mind this would be implemented into an engine with a "low" CR (~10-12:1).
  6. jgattoni

    Spark Ignited Heavy Fuel Direct Injection

    Assuming you have full injector control (timing, pulsewidth, pressure, etc.), and a custom injector nozel with an optimized orifice diameter and inlet radius, how well could this perform in comparison to a traditional compression ignition engine. There is ALOT to this and I am verifying this...

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