Pressure limiting type variable vane pump can automatically adjust according to load size variable flow pump refinement., Power use is reasonable, can reduce heating oil, so often used to perform elements require fast or slow or packing requirements of the occasion. Fast load is small, low pressure, flow, pump in characteristic curve segment. Slow feed, load large variable displacement pump, high pressure, low flow, the pump automatically switches to characteristic curve segment. When packing, at near point work variable pump maintenance., Provide a small leakage flow to compensate for this limited-pressure system variable vane pump rated pressure 6.3pa? When the motor working pressure is lower than the initial pressure variable pressure, constant control servo valve 7 function in the left position, the servo valve 7 is a section of the oil passage, motor complete control by the pilot pressure. At this point, the big variable cylinder chamber oil passage is closed, the motor will maintain the current displacement. When the motor is operating pressure continues to rise, the servo valve 7 will be in the left position location function, the variable low pressure oil chamber and a large cylinder is turned, a variable piston moves to the right under the action of the small chamber oil pressure, the motor displacement increases great. We know that if the load torque due to the reason or due to a decrease in motor swing angle of the system pressure increases, when it reaches the set value of the constant voltage control, motor pendulum to swing angle larger. When the external load decreases, the motor control process with the above process is reversed, not repeat them here. In short constant voltage control function of the motor is automatically changed according to changes in external load motor displacement, so that the motor operating pressure is kept within the set range. Variable pump repair |. Variable pump | Hydraulic from Jinan Jing Jing Chong Chong Hydraulic Machinery Limited. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) strong, credible, in Jinan, Shandong mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement to create innovative ideas will lead crystal hydraulic and you hand into the brilliant, for a better future!