| 1. | Vacuum pressure combined pump
真空压力复合气泵 |
| 2. | Combined pump move direct
复合泵运动方向 |
| 3. | Combined pump diaphragm rod
复合泵膜片杆 |
| 4. | Combined pump lifter link
复合泵举升拉杆 |
| 5. | Combined pump diaphragm
复合泵膜片 |
| 6. | To overcome the disadvantage of tatsuno combined pumps and to improve the characteristics of the pumps , a new kind of pump with the fixed transmission ratio is proposed , the teeth of which are circle - arc and its envelope
针对tatsuno双圆弧组合泵存在的不足，提出了该泵中的一对齿轮副采用定传动比的圆弧及其包络线齿轮副的方案，以改善泵的性能。 |
| 7. | The tooth shape of gear pump has important influence on machining and characteristics of pumps , such as flow rate , fluctuation rate and noise etc . first , the working principle of tatsuno combined pumps is analyzed in this article
齿轮泵的齿形对泵的加工、性能（如：流量、脉动率、噪声）等有很大的影响。本文首先分析了进口tatsuno组合泵的工作原理，并进一步分析了其采用一对双圆弧齿轮的优缺点。 |
| 8. | Although the flux per revolution of the optimized pumps is a little smaller than that of tatsuno combined pumps , other characteristics , such as fluctuation rate , maximum pressure angle and velocity fluctuation rate etc , are much better . the methods to cut gears are proposed in the theory for the practical produce in the future
虽然，在体积相等的条件下，优化出来的外圆弧包络线内啮合齿轮泵的排量略小于tatsuno组合泵的排量，但其它性能（如：流量脉动率、最大压力角、速度波动量）都更优。 |
