Fire System

I have been working on the fire suppression system and have it almost complete.

I welded the mounting tabs for the bottles. Fabricated a bracket for the master power shutoff air cylinder.

All of the tubing lines are bent and run inside the frame. I had to cut holes in the frame and weld double up plates around the holes to keep from weakening the frame.

Here is how the system works.

If I pull the fire bottle handle, it pulls the trigger cables out of the fire bottle valves.

This allows the plungers to be released, puncturing the seals on the fire bottles. The fire agent flows from the bottles into the line leading to the fire suppression nozzles and to the master power cutoff cylinder.

The fire agent flows from the bottles into the line leading to the fire suppression nozzles and to the master power cutoff cylinder. When the master power cutoff cylinder is pressured up by the extinguishing agent, the shaft on the cylinder strikes the master cutoff switch and pushes it to the off position. This prevents an ignition source from restarting a fire due to a short curcuited wire.

The fire agent also travels around the chassis through the fire suppression loop to extinguish a fire if one occurs. The agent travels from the bottles through a 1/4 inch tubing line down the rear from loop into the main chassis tube on the right side. 

The tubing is run inside the chassis tube to protect it during a crash.

The tubing exits the frame at the front of the chassis on the right side and flows to the first fire suppression nozzle which sprays at the right side of the engine.

The 1/4 inch line continues across the front frame rail to a second nozzle on the left side of the engine.

The 1/4 inch line goes back inside the left frame rail and travels down the frame rail to the driver's compartment. The tubing exits the frame rail and goes to a third nozzle that sprays agent onto the driver to keep him cool and extinguish any fire that enters the driver's compartment. This nozzle is aimed at the drivers feet and legs.

This is another major step forward!!!

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