HYDRAULIC SYSTEM Russian patent published in 1997 - IPC

FIELD: aeronautical engineering; landing gear extension/retraction and brake systems. SUBSTANCE: hydraulic system is provided with hydraulic tank 1 fitted with pipe unions 2 and 3 for draining working fluid from consumers and taking it from hydraulic tank by means of pump 4, hydraulic accumulator 6 connected with wheel brakes 9 and 12 through pressure-reducing valves 7 and 10 and shuttle valves 8 and 11. Branch pipes 2 and 3 are provided with reservoirs 15 and 17 open upward and provided with their own outlet pipe unions 16 and 18 connected with inlets of main brake cylinders 13 and 14 by means of lines. Upper edges of reservoirs 15 and 17 are under level of liquid contained in hydraulic tank, therefore no filling is required; they supply working fluid to main brake cylinders 13 and 15 even through consumers of hydraulic system, lines and hydraulic tank 1 lose their tightness. EFFECT: enhanced efficiency. 1 dwg