YD-D-type oil pump performance test bench a teaching experiment and have the characteristics of the experimental units that can be performed: 1. Equipment overall appearance, generous. 2. lighting. 3. Bench vertical layout, hydraulic valve mounted on vertical layout cast iron panels, while accompanied by a pressure gauge and oval gear flow meter to measure flow and pressure. 4. Pressure and flow positive adjustment in the experimental station, in the back of the line with a fixed connection brass, pipe not messy. 5. protective steel casing, good security. 6. standard manufacturing equipment to the machine, close to the industrial reality. 7. Two of the top low-friction cylinder loaded with screws in cast iron table, rigid, high precision experiments. 8. can achieve double the fuel tank on the roof load, test pressure can to 7Mpa. 9. Set the table set up oil installations to prevent oil leakage. 10. The hydraulic pump source for the two sets of quantitative pump oil, placed in the casing around the covered bench below can be loaded simultaneously quantitative experiments pump performance testing and variable load. Second, the main features: 1, bench vertical layout, hydraulic valve mounted on the vertical layout of the cast-iron panels, but with pressure gauge and meter display of flow and pressure. 2, there is a lighting device. 3, the pressure and flow parameters in positive adjustments to the line at the back of the brass fixed connection, safety, pipeline not messy. 4, the top two pairs of cylinders loaded with screws for cast iron table, dual fuel tanks on the roof load, test pressure may ≥7Mpa, table setting oil gathering system, to avoid oil leakage. 5, the pump source for the two sets of quantitative hydraulic pump oil, placed in the casing around the covered bench below, while quantitative pump performance testing and load test variable load. Third, the main parameters: 1, the maximum pressure: 63 kg / c㎡, pumps YB1-6, displacement of 6 ml / r (2 units) 2, the motor type: 2HP4P (2 sets); Power: 1 5Kw speed 1450r / min 3. Tank 120L 4. Overall dimensions: length x width x height 1390 × 600 × 1700 (mm). Fourth, the pilot project: 1. The standard range of hydraulic components working principle of hydraulic components recognize experiment was to test the experiment 2. (1), the pump performance test (pump flow characteristics, volumetric efficiency and overall efficiency); (2), relief static and dynamic experiments (opening and closing characteristics, pressure overshoot characteristics); (3), the governor and the inlet throttle valve speed governor; (4), the governor of the throttle valve speed performance test (inlet throttling Speed, speed throttling back oil bypass system operating characteristics); (5), the hydraulic system efficiency experiments. 3. The system of hydraulic components and creative design experiment.