Nuclear power plant

Claim 1

NUCLEAR POWER PLANT COMPRISING A SINGLE PRESSURE VESSEL, A BIOLOGICAL SHIELD, A SECTION OF WHICH IS DISPOSED INSIDE THE PRESSURE VESSEL SEPARATING THE INTERIOR OF THE PRESSURE VESSEL INTO TWO CHAMBERS, A HETEROGENEOUS NUCLEAR REACTOR OF THE NATURAL URANIUM, GRAPHITE-MODERATED, GAS COOLANT TYPE WHICH OPERATES WITH A RECYCLED GASEOUS COOLANT UNDER SUPER-ATMOSPHERIC PRESSURE ARRANGED IN ONE OF SAID CHAMBERS OF THE PRESSURE VESSEL, A STEAM GENERATOR INCLUDING A HEAT EXCHANGER ARRANGED IN THE OTHER OF SAID CHAMBERS OF THE PRESSURE VESSEL, THE SECTION OF THE BIOLOGICAL SHEILD IN THE PRESSURE CHAMBER BEING SO FORMED AS TO PERMIT THE FLOW THERETHROUGH OF GASEOUS COOLANT AND TO PREVENT DIRECT RADITION FROM THE NUCLEAR REACTOR TO THE HEAT EXCHANGER, BAFFLE MEANS DISPOSED WHOLLY WITHIN THE PRESSURE VESSEL AND ARRANGED TO DIRECT HEATED COOLANT GAS FROM THE REACTOR TO THE HEAT EXCHANGER AND COOLED COOLANT GAS FROM THE HEAT EXCHANGER TO THE REACTOR, AND FAN MEANS WITHIN THE PRESSURE VESSEL ARRANGED TO PROMOTE THE FLOW OF HEATED COOLANT GAS FROM THE REACTOR TO THE HEAT EXCHANGER AND COOLED COOLANT GAS FROM THE HEAT EXCHANGER TO THE REACTOR, THE PRESSURE VESSELS BEING SUBJECTED INTERNALLY UNDER NORMAL OPERATION OF THE PLANT TO THE FULL PRESSURE OF THE GASEOUS COOLANT, WHEREBY THE BAFFLE MEANS ARE SUBJECTED ONLY TO THE SMALL PRESSURE DIFFERENCES REQUIRED TO INSURE FLOW OF GASEOUS COOLANT.