pressurized portable marine fuel tanks mark riechers n.
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Pressurized Portable Marine Fuel Tanks Mark Riechers
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  1. Pressurized Portable Marine Fuel Tanks Mark Riechers

  2. EPA Regulation §(1060.105 (c)) effective 01 Jan 2010 (c) Portable marine fuel tanks and associated fuel-system components must meet the following requirements: (1) They must be self-sealing (without any manual vents) when not attached to the engines. The tanks may not vent to the atmosphere when attached to an engine. (2) They must remain sealed up to a positive pressure of34.5 kPa (5.0 psig); however, they may contain air inlets that open when there is a vacuum pressure inside the tank.

  3. Portable Tank Design Changes Current Design EPA Regulation §(1060.105 (c)) -2kPa 35kPa

  4. Diurnal Pump Intake Cool air FR FR FR Wall of tank provides reactionary force to draw volume into the tank.(Tank wall is functioning as a pump diaphragm/spring)

  5. Diurnal Pump Exhaust If hose or engine leak… Pumping Cycle Continues until tank is empty FR FR FR Wall of tank provides reactionary force to expel liquid from tank.(Tank wall is functioning as a pump diaphragm/spring)

  6. Tilted Engine Applications

  7. Ref. Vapor Separator (Optimax) Dynamic “Trailering” Overflow Test Determine Maximum Dynamic Inlet Pressure • Position test unit at 70° tilt and 30° turn. • Route clear vent hose to container for overflow capture • Fill float bowl completely full (overflow into vent hose) • Accelerate assembly per respective value above • Apply pressure, monitor overflow for “pop-off” value CombinedTilt and Turn Worst-Case Turn

  8. Rough Road Testing

  9. Rough Road Results Transom Vertical Motion Time History, 25 MPH, RR XING

  10. Rough Road Conclusions 100 mm of transom displacement Visible Leakage from Carburetor at 7kPa (1psi) Portable Fuel Tank