BENCH FOR CLEANING AND FLUSHING OF MACHINE HYDRAULIC SYSTEMS Russian patent published in 2009 - IPC F02B77/04 

FIELD: machine building.

SUBSTANCE: invention is used for cleaning and flushing of hydraulic systems of tractors and combines of agricultural purpose, construction-road or communal service machines. Bench comprises double-flow hydraulic pump connected to hydraulic lines of cleaning and flushing. Inlets of these hydraulic lines and outlet of cleaning hydraulic line are connected to hydraulic tank. Suction sections of both hydraulic lines are equipped with inlet tubes with plugs, and forcing section of cleaning hydraulic line is equipped with serially installed three-way valve for provision of liquid supply into forcing section of flushing hydraulic line, the first outlet tube with plug, filter of fine purification and the second outlet tube with plug. Forcing section of flushing hydraulic line is equipped with serially installed the first three-way valve for provision of possibility of liquid supply into forcing section of cleaning hydraulic line, filter of fine purification, hydraulic slide valve for creation of pulsing flow of flushing liquid and mixing chamber for mixing of pulsing flow of flushing liquid with compressed air, and also the second three-way valve installed between filter and hydraulic slide valve for provision of possibility for flushing liquid supply from filter directly to object of flushing. Bench is also equipped with compressed air reservoir connected to outlet of forcing section of flushing hydraulic line, and receiver of compressed air connected to inlet of mixing chamber or inlet of compressed air reservoir.

EFFECT: reduction of labour-intensiveness, expansion of bench resources, higher extent of cleaning and flushing.

11 cl, 1 dwg