| 摘要 |
FIELD: transportation. ^ SUBSTANCE: system comprises autonomous circuit of cooling and pre-start heating of traction engine, which includes the first radiator, the first pump, the first box of thermostats, cooling jacket of traction engine block of cylinders, boiler of pre-start heater, the third pump. System also comprises autonomous circuit of cooling for unit of hydraulic shock absorbers, including the second radiator, the second pump, cooling jacket of hydraulic shock absorbers unit. System is additionally equipped by three-way slide valve, which receives control signal from cooling fluid temperature detector. Inlet of three-way slide vale is hydraulically connected to discharge of the third pump. The first outlet of three-way slide valve is hydraulically connected to inlet of the first box of thermostats. The second outlet of three-way slide valve is hydraulically connected to the second inlet of the second thermostat box. The first inlet of the second thermostat box is hydraulically connected to discharge of the second pump. The first and second outlet of the second thermostat box is hydraulically connected to cooling jacket of hydraulic shock absorber unit and the second radiator accordingly. Inlet of pre-start heater boiler has hydraulic connections to both autonomous circuits. ^ EFFECT: stability of external characteristics of hydraulic shock absorbers and lower probability of shock absorber failure. ^ 1 dwg |
