A spiral-ramp cap and threadless neck contain coolant at atmospheric pressure, cutting sealing cost while limiting leaks and contaminant ingress.
Elastic dome protectors fastened to nozzle members reinforce Type 4 pressure vessel ends and absorb impact without thicker carbon-fiber winding.
Segmented hydrogen tank volumes and valve feedback control help manage adiabatic heating, equalize pressure, and protect residual fuel.
Pre-mixed organofluorine and nitrogen insulation gas stays fully gaseous during transport and filling, avoiding condensation, heating, and complex mixers.
Partitioned tank volumes, distributed sensing, and valve control equalize pressure and protect residual hydrogen from embrittlement-related risk.