Electric-arc sorption superhigh-vacuum pump with nitrogen cooling of active-metal condensation surface

An electric-arc sorption superhigh vacuum pump with the cooling of titanium condensation surface by liquid nitrogen is described. The pump is intended for durable hydrogen pumping-out in physical and technological vacuum installations. The range of pump working pressures amounts to 5x10-5 - 1x10-9 mm Hg, nitrogen pumping-out rate - 10000 l/s, hydrogen pumping-out rate - 20000 l/s, for air - 10000 l/s, nitrogen consumption in steady-state regime 5-8 l/h. About 70 % of titanium total reserve is usefully utilized