SUMMER AND WINTER MAINTENANCE ROAD MACHINE Russian patent published in 2005 - IPC

FIELD: road maintenance facilities.

SUBSTANCE: proposed road machine has base chassis with power unit, road summer and winter maintenance equipment with hydraulic system to drive actuating mechanisms of fitted-on equipment. Flow governors and hydraulic motors of actuating mechanisms controlled by governors are connected in series. Drain main line of preceding flow governor is united with drain main line of hydraulic motor controlled by said governor and supply main line of following flow governor. Control hydraulic distributor is installed in overflow valve control line of main hydraulic distributor to provide emergency disconnection of all actuating mechanisms of special equipment in hydraulic system.

EFFECT: improved reliability and reduced cost of machine, provision of independent control of hydraulic motor speed, simplified conversion of machine for operation in summer and winter, possibility of emergency disconnection of all actuating mechanisms of mounted equipment.

2 cl, 1 dwg