Check this out. Uses Diesel to light the CNG/LNG, could probably be set up for propane. Anybody with a propane system know how much propane you run compared to how much CNG/LNG this thing can stand?

Edit: I don't know why I can't get the G-D link to work right, >but if you look under engine info/specs, then current engines, then dual-fuel, you'll see what I mean. I'm computer literate, but just barely, I guess. :P

 

What it saying is that it uses Diesel/CNG-LNG to take off then when coasting on the highway it uses CNG-LNG. Bascily like add a 200 shot of LP to your truck and taking some of the Diesel away. Its like 50/50. The thing is that CNG-LNG is heck of alot cleaner and doesnt blow smoke. I know the PSD's can handle aleast a 200 shot of LP. I wonder if our trucks can run CNG-LNG?
SD03

 

http://www.westport.com/products/index.php
here is cummins product line...

edit...
follow the links... http://www.cumminswestport.com/

 

Although I think the Cummins engines have spark plugs...

 

[quote author=westcoaster link=board=8;threadid=15041;start=0#141230 date=1053669804]
Although I think the Cummins engines have spark plugs...
[/quote]

You mean glow plugs?

 

And they are owned by Ford..... : : :<br><br><br>Rick

 

[quote author=rharveysr link=board=8;threadid=15041;start=0#141303 date=1053697881]<br>And they are owned by Ford..... : : :<br><br><br>Rick<br>[/quote]<br><br>LUMPY + SHEEP... :

 

Westport Innovations Inc., through its joint venture Cummins Westport Inc. (CWI), has a wide range of low-emissions, high performance natural gas powered engines for many applications. We have contributed our Westport-Cycle™ technology and other proprietary natural gas technologies, and Cummins has contributed its current on-highway vehicle medium-duty spark-ignited natural gas engine businesses and proprietary engine-related technologies for on-highway vehicles, industrial and power generation applications. Cummins manufactures the engines for CWI and those engines are exclusively distributed and serviced by the Cummins global distribution system.<br><br>More detailed information on the entire CWI product line is available at the Cummins Westport website at: http://www.cumminswestport.com.<br><br><br><br>no... I mean SPARK plugs... at a 10:1 compression ratio and a full natural gas or propane engine how else do you make it ignite??

 

[quote author=westcoaster link=board=8;threadid=15041;start=0#141230 date=1053669804]
Although I think the Cummins engines have spark plugs...
[/quote]
No Diesel/Propane/LNG injected motors have spark plugs its either heating grid (CTD) or Glowplugs (Ford&amp;Chevy). Its all done by Compressed ignition. Even if it has a lower compression ratio than normal.

 

I was probably miss reading this paragraph and lead me to make the statement about the spark plugs...<br><br>and Cummins has contributed its current on-highway vehicle medium-duty spark-ignited natural gas engine businesses and pro

 

[quote author=SuperiorDiesel03 link=board=8;threadid=15041;start=0#141333 date=1053701060]<br>[quote author=westcoaster link=board=8;threadid=15041;start=0#141230 date=1053669804]<br>Although I think the Cummins engines have spark plugs...<br>[/quote]<br>No Diesel/Propane/LNG injected motors have spark plugs its either heating grid (CTD) or Glowplugs (Ford&amp;Chevy). Its all done by Compressed ignition. Even if it has a lower compression ratio than normal.<br>[/quote]<br><br>I think he was joking.

 

Anybody have a clue how little compression it takes to keep our engines running? Can 10.5:1 still ignite diesel?<br> Tony

 

It will all depend on the intake air temp and the fuel atomization. For diesel fuel to ignite it takes a minimuim of 450 degrees Farenheit. If you didn't run an intercooler and coudl really get a super fine spray from the injectors, then it &quot;MIGHT&quot; be enough, but only after the engine got warm.

 

If you read these articles by Bruce Mallinson, on big Cummins motors he drops the compression down to 14:1, cranks up the boost and fuel and retards the timing. He's going for million-mile longevity in class 8 trucks while making 2500 ft/lbs of torque, so his goals are a bit different than ours.

 

6.5:1 isn't enough.