Unloading valve and loader variable speed hydraulic system
The invention relates to a loader variable speed hydraulic system, aims to solve the overflow loss, shifting impact and shifting delay problems of the loader variable speed hydraulic system, and provides the loader variable speed hydraulic system. The loader variable speed hydraulic system is charac...
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| creator | CHEN JIJIONG LIANG ZHENGUO MO XIONGCHAO CHEN LIGUANG |
| description | The invention relates to a loader variable speed hydraulic system, aims to solve the overflow loss, shifting impact and shifting delay problems of the loader variable speed hydraulic system, and provides the loader variable speed hydraulic system. The loader variable speed hydraulic system is characterized in that an oil inlet of a variable speed pump is connected with a gearbox oil body shell; an oil outlet is connected with an EF oil port of an unloading valve; a PW oil port of the unloading valve is connected with an oil inlet of a variable speed operating valve; an energy accumulator is connected onto a connecting oil line between the PW oil port of the unloading valve and the oil inlet of the variable speed operating valve; and a T oil port of the unloading valve is connected with the gearbox oil body shell through a torque converter and a counterbalance valve. In the technical scheme, the working pressure of the variable speed pump is approximately 0.2 to 0.5 MPa and is lower than the overflow pressure |
| format | Patent |
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The loader variable speed hydraulic system is characterized in that an oil inlet of a variable speed pump is connected with a gearbox oil body shell; an oil outlet is connected with an EF oil port of an unloading valve; a PW oil port of the unloading valve is connected with an oil inlet of a variable speed operating valve; an energy accumulator is connected onto a connecting oil line between the PW oil port of the unloading valve and the oil inlet of the variable speed operating valve; and a T oil port of the unloading valve is connected with the gearbox oil body shell through a torque converter and a counterbalance valve. 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| language | chi ; eng |
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| subjects | BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL THERMAL INSULATION IN GENERAL WEAPONS |
| title | Unloading valve and loader variable speed hydraulic system |
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