At present, the research on gear pump at home and abroad mainly focuses on the following aspects:
(1) Optimized design of gear parameters and pump body structure;
(2) Radial clearance compensation and computer-aided analysis of oil film between teeth;
(3) Trapped oil impact and unloading measures (including trapped oil impact and gear meshing overlap coefficient
Relationship and whether unloading is complete etc.);
(4) Noise control technology of gear oil pump;
(5) Methods to reduce the flow pulsation of gear oil pump (including reasonable selection of gear parameters and
Split tooth swing, etc.);
(6) Tooth surface coating technology and characteristics;
(7) Calculation of tooth bending stress and contact fatigue strength;
(8) Research on variable method of gear oil pump;
(9) The life and influence of gear oil pump;
(10) Gear oil pump fluid pressure analysis and the way of high pressure.
