HYDRAULIC SYSTEM OF AGRICULTURAL COMBINE HARVESTER Russian patent published in 1994 - IPC

FIELD: agricultural engineering. SUBSTANCE: device for limiting losses of service fluid in case of rupture of hydraulic lines which connect variable-volume pump with hydraulic motors of running gear and the constant volume pump with hydraulic motors of working equipment is characterized in that it has an inlet controlled by the pressure-tightness sensor of two-line two-position valve, said inlet communicating through nonreturn valves with hydraulic lines supplying the hydraulic mechanism which controls pump delivery and with the outlet of the throttle bypass valve installed in the hydraulic control line. EFFECT: improved design. 1 dwg