APPARATUS FOR GENERATING GAS-AND-DROP JET AND VALVE FOR SUPPLYING TWO-PHASE WORKING FLUID Russian patent published in 1999 - IPC

FIELD: equipment for generating two-phase working fluids. SUBSTANCE: apparatus has gas dynamic nozzle communicated with liquid and gas mixing chamber. Liquid flow dispersing device with ejection holes is positioned in mixing chamber, which is connected with liquid and gas supply system through controlled valve for supplying two-phase working fluid. Valve is adapted for preliminary supplying of gas flow into mixing chamber prior to feeding liquid into mixing chamber upon switching of apparatus, and for preliminary cutting off liquid flow into mixing chamber prior to cutting off gas flow into mixing chamber. Valve has two locking members engageable with seats on walls of hermetically sealed cavities, which are communicated with liquid supply pipeline and gas supply pipeline, respectively. One locking member is rigidly fixed on stem for engagement with seat in gas supply cavity. Other locking member is axially mounted on stem for moving along it while it is engaged with stop rigidly fixed on stem. Flexible member arranged between liquid supply cavity wall and movable locking member is adapted for pressing movable locking member to seat in liquid supply cavity. When valve is in its normally closed state, supporting surface of stop is in spaced relation to opposite supporting surface of movable locking member. EFFECT: increased efficiency in generating gas-and-drop jets having stable characteristics at multiple switchings of apparatus. 37 cl, 2 dwg