图解液压系统讲解.ppt

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图解液压系统讲解.ppt

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液气传动Hydraulic and Pneumatic Transmission 2010-2011年第一学期 NOTES NOTES NOTES NOTES NOTES NOTES NOTES NOTES NOTES NOTES NOTES Notes In order to retract the cylinder once it has completed its stroke, a directional control valve is required to switch the fluid to either end of the cylinder (or to block it when no movement is required). Directional valves are most often sliding spool valves. Notes In order to retract the cylinder once it has completed its stroke, a directional control valve is required to switch the fluid to either end of the cylinder (or to block it when no movement is required). Directional valves are most often sliding spool valves. Notes In order to retract the cylinder once it has completed its stroke, a directional control valve is required to switch the fluid to either end of the cylinder (or to block it when no movement is required). Directional valves are most often sliding spool valves. Notes In order to retract the cylinder once it has completed its stroke, a directional control valve is required to switch the fluid to either end of the cylinder (or to block it when no movement is required). Directional valves are most often sliding spool valves. Notes In order to retract the cylinder once it has completed its stroke, a directional control valve is required to switch the fluid to either end of the cylinder (or to block it when no movement is required). Directional valves are most often sliding spool valves. Notes In order to retract the cylinder once it has completed its stroke, a directional control valve is required to switch the fluid to either end of the cylinder (or to block it when no movement is required). Directional valves are most often sliding spool valves. Notes In order to retract the cylinder once it has completed its stroke, a directional control valve is required to switch the fluid to either end of the cylinder (or to block it when no movement is required). Directional valves are most often sliding spool v