Hydraulic pumps come in many types, which can be classified according to their structure into piston pumps, vane pumps, gear pumps, screw pumps, etc.; and according to whether the flow rate is adjustable into variable displacement pumps and fixed displacement pumps. Some types of hydraulic pumps can also receive high-pressure hydraulic fluid from external sources and convert hydraulic energy into mechanical energy, functioning as a hydraulic motor.
Hydraulic pumps play a vital role in many fields, including mining and metallurgy, power generation, defense, agriculture, petrochemicals, and shipbuilding. With vigorous development worldwide, many well-known brands have emerged, such as Bosch Rexroth (Germany), Danfoss (Denmark), Kawasaki Heavy Industries (Japan), and Parker Hannifin (USA). Meanwhile, research into pumps has further improved the working pressure and energy conversion efficiency of hydraulic pumps, leading to a rapid expansion of their application areas.
my country's hydraulic industry has seen continuous improvement in its technological strength. From 2009 to 2019, the output value of my country's hydraulic pump products increased from 5.918 billion yuan to 13.205 billion yuan, with an average annual compound growth rate of 8.36%. China's domestic hydraulic pump production capacity has also made great strides, the overall performance of hydraulic pumps has been continuously improved, and the proportion of domestically produced core components has continued to increase.
