Valves maintain preset pressure difference between gas flows. Two spool valves connected by shaft move back and forth in response to changes in pressure in oxygen and hydrogen chambers. Spool-valve assembly acts to restore pressures to preset difference. By eliminating diaphragms, pressure exerted directly on external end of spool valve; however, forces and therefore sensitivity of assembly are reduced.
Spool-Valve Pressure-Difference Regulator
NASA Tech Briefs ; 7 , 4
1983-10-01
Miscellaneous
No indication
English