Hydraulic technology has made great progress in transforming mechanical energy into pressure energy and reaction force, but energy loss has always existed, mainly reflected in the volume loss and mechanical loss of the system. If the full pressure energy is fully utilized, the efficiency of the energy conversion process will be significantly improved. In order to reduce the loss of pressure energy, the following problems must be solved: ① reduce the internal pressure loss of components and systems, thus reducing the power loss. The pressure loss can be reduced by improving the internal flow channel of the element, and the pipeline loss and oil leakage loss can be reduced by adopting integrated circuit and casting flow channel. ② Reduce or eliminate system throttling loss, Jh cycloidal hydraulic motor Limit the overflow of unsafe requirements, and avoid regulating flow and pressure with throttling system. Static pressure technology and new sealing materials are used to reduce friction loss. （4） Vigorously develop miniaturization, lightness and integration, and widely develop 3-diameter, 4-diameter and low-power solenoid valves. To improve the performance of the hydraulic system, load sensing system, secondary regulation system and accumulator circuit are adopted. In order to maintain the hydraulic system in time and prevent pollution from affecting the service life and reliability of the system, new pollution detection methods must be developed, Conveyor belt cycloidal hydraulic motor The pollution shall be measured online and adjusted in time without delay to avoid losses due to improper treatment.

Leakage control

Leakage control includes: Cycloidal hydraulic motor of mixer To prevent the leakage of liquid from causing environmental pollution and the damage of external environment to the system. The future development direction is leak free components and systems, such as developing integrated and composite components and systems, realizing pipe free connection, developing new seals and leak free pipe joints, and motor oil pump combination devices. Water tight will be an important development direction in the world hydraulic industry today.