TURBOPUMP UNIT Russian patent published in 1997 - IPC

FIELD: rocketry. SUBSTANCE: turbopump unit has housing and rotor mounted in bearing supports; besides that, housing has limiting stops; one limiting stop is engageable with outer end of external holder of one of bearing supports; unit is also provided with rotor automatic axial deloader. Second stop is located on the outside of external holder of second bearing support, automatic axial deloader being arranged in between supports. There are clearances between pivot of automatic axial deloader and rotor; rotor is spring-loaded in direction of automatic deloader pivot. Bearing supports may be made in form of twin bearings, with spring between their outer races and rigid ring between inner races. EFFECT: enhanced reliability. 2 cl, 3 dwg